Checking to test compilation

Cleaned source.

DCPlugin.pri

@@ -10,7 +10,10 @@ HEADERS += $${PWD}/include/com.h \
     $${PWD}/include/prot.h \
     $${PWD}/include/sendWRcmd.h \
     $${PWD}/include/storeINdata.h \
-    $${PWD}/include/tslib.h
+    $${PWD}/include/tslib.h \
+    $${PWD}/include/shared_mem_buffer.h \
+    $${PWD}/include/serial_port_thread.h \
+    $${PWD}/include/serial_port_worker.h
 
 SOURCES += $${PWD}/src/com.cpp \
     $${PWD}/src/controlBus.cpp \
@@ -20,4 +23,7 @@ SOURCES += $${PWD}/src/com.cpp \
     $${PWD}/src/prot.cpp \
     $${PWD}/src/sendWRcmd.cpp \
     $${PWD}/src/storeINdata.cpp \
-    $${PWD}/src/tslib.cpp
+    $${PWD}/src/tslib.cpp \
+    $${PWD}/src/shared_mem_buffer.cpp \
+    $${PWD}/src/serial_port_thread.cpp \
+    $${PWD}/src/serial_port_worker.cpp

include/controlBus.h

@@ -170,7 +170,7 @@ uint8_t epi_getResultOfLastRequest();
     // retval: 0: in progress  1: OK  2: error
 
 
-void gpi_storeRecPayLoad(uint8_t RdDlen, uint8_t *receivedData);
+void gpi_storeRecPayLoad(uint8_t RdDlen, uint8_t const *receivedData);
     // stored by Datif
 
 uint16_t epi_getLastPayLoad(uint16_t plBufSiz, uint8_t *payLoad);

include/datIf.h

@@ -330,6 +330,11 @@ signals:
         //the requested data are stored in peripheral image
         // can be loaded with epi
 
+    void datif_templatePrintFinished_OK();
+    void datif_templatePrintFinished_Err();
+
+    void datif_gotNewCoin();
+
 };
 
 #endif // CI_H

include/dcBL.h

@@ -78,7 +78,7 @@ uint8_t dcBL_getResult(void);
 
 
 #define RAW_BL_DATALEN      150
-void gpi_storeRawReceivedData(uint8_t  RdDlen, uint8_t *receivedData);
+void gpi_storeRawReceivedData(uint8_t  RdDlen, uint8_t const *receivedData);
 
 uint8_t epi_getRawReceivedData(uint8_t *receivedData);
     // retval=length, will be zeroed after first reading

include/hwapi.h

@@ -93,14 +93,15 @@ Level 3): send command: "start payment process"
 #include "interfaces.h"
 #include "datIf.h"
 
-
-
+class QSharedMemory;
 class hwapi :   public QObject,
                 public hwinf
 {
     Q_OBJECT
     Q_PLUGIN_METADATA(IID "Atb.Psa2020.software.HWapi/1.0" )   //FILE "HWapi.json")
     Q_INTERFACES(hwinf)
+private:
+    void sub_storeSendingText(QByteArray *buf) const;
 
     DownloadResult sendNextAddress(int bNum) const;
     DownloadResult sendNextDataBlock(QByteArray const &b, int bNum) const;
@@ -114,12 +115,17 @@ class hwapi :   public QObject,
     bool resetDeviceController() const;
     QByteArray loadBinaryDCFile(QString filename) const;
     bool downloadBinaryToDC(QString const &bFile) const;
+
+    QSharedMemory *m_sharedMem;
 public:
     explicit hwapi(QWidget *parent = nullptr);
+    virtual ~hwapi();
 
     T_datif *myDatif;
 
 
+    virtual QStringList dc_getStatus() const;
+
     // ------------------------------------------------------------------------------
     // Level 0 commands, interface
     // open, close, change serial interface
@@ -144,6 +150,16 @@ public:
     bool dc_updateDC(QString binFileName, QString baudrate,
                      QString comPort) const override;
     
+    bool dc_updatePrinterTemplate(enum FileTypeJson type,
+                                  QVector<int> templateIdx,
+                                  QVector<QString> fnames,
+                                  QString br,
+                                  QString serial = QString()) const override;
+
+    bool dc_printTemplate(enum FileTypeJson type,
+                          QVector<int> templateIdx,
+                          QString br,
+                          QString serial = QString()) const override;
     // ------------------------------------------------------------------------------
     // Level 1, control device-controller (functions of µC)
     // check serial connection to deviceController
@@ -980,24 +996,12 @@ public:
     //                          uint16_t borough, uint16_t zone,
     //                          uint16_t alias,   char *location) const override;
 
-    /*
-    uint8_t emp_getInsertedCoinSignal(void) const override;
-        // can be called one time after each coin
-        // emp_chkIfCoinInserted() must be called before!
-
-    uint16_t emp_getInsertedCoinValue(void) const override;
-        // can be called one time after each coin
-        // emp_chkIfCoinInserted() must be called before!
-
-    uint8_t emp_getCoinError(void) const override;
-        // can be called one time after each coin
-        // emp_chkIfCoinInserted() must be called before!
-    */
 
     bool rtc_setTimeDateDirect(struct Trtc_DateTime *DateTime) const override;
         // return true if successful. could fail if more the 8 commands are waiting
 
     bool rtc_getExtendedTime(uint8_t *leng, uint8_t *data) const override;
+    bool rtc_getExtendedTime(struct T_extTime *exTime) const override;
 
     bool sys_runCompleteTest(void) const override;
         // warning: lasts 20s in one pace
@@ -1022,15 +1026,18 @@ public:
         // nr = 1..32
         // return true if sending, false if cmd-stack is full
 
-    void log_getHoldAccountNumbers(uint32_t *accNr ) const override;
+    void log_getHoldAccountNumbers(uint8_t *nrOfVals, uint16_t *accNr ) const override;
     // returns all acc nrs of the backuped vault records
-        // use: uint32_t backupedAccNumbers[8]
+    // use: uint16_t backupedAccNumbers[8]
 
     bool log_selectVaultRecord(uint16_t accountNr ) const override;
         // return true if sending, false if cmd-stack is full
+        // and trigger transfer
 
-//request, isAvailable
-    void log_getVaultRecord(struct T_vaultRecord *retVR) const override;
+    bool log_chkIfVaultRecordAvailable(void) const override;
+        // return true if completly received
+
+    bool log_getVaultRecord(struct T_vaultRecord *retVR) const override;
         // which was selected by: log_selectVaultRecord()
         // to be forwarded to Ismas
 
@@ -1040,7 +1047,8 @@ public:
     bool prn_printTestTicket(void) const override;
         // return true if sending to DC OK, false if cmd-stack is full
 
-    bool cash_startPayment(uint16_t amount) const override;
+    bool cash_startPayment(uint32_t amount) const override;
+        // 17.4.23TS: extended to 32bit
 
     bool cash_cancelPayment(void) const override;
         // and return coins
@@ -1068,30 +1076,47 @@ public:
 
 
 
-    uint8_t mif_getCardType(QString cardholder) const override;
+    uint8_t mif_getCardType(QString *cardholder) const override;
         // return 1,2,3,4 = upper, lower access card, printer test, coin test
         // cardholder: 7byte Name-String
 
     uint64_t sys_getWakeSource(void) const override;
         // retval: 6 bytes, bit coded, 1=event keeps DC awake
 
-    //void sys_getDeviceConditions(struct T_moduleCondition *devCond) const override;
     void sys_getDeviceConditions(uint8_t *leng, uint8_t *data) const override;
 
-    //void sys_getDynMachineConditions(struct T_dynamicCondition *dynMachCond) const override;
+    void sys_getDeviceConditions(struct T_moduleCondition *devCond) const override;
+
     void sys_getDynMachineConditions(uint8_t *leng, uint8_t *data) const override;
+    void sys_getDynMachineConditions(struct T_dynamicCondition *dynMachCond) const override;
 
 
+    uint32_t cash_getAmountInVault(void) const override;
+
+    uint16_t cash_getNrCoinsInVault(void) const override;
+
+    uint8_t prn_getPrintResult() const override;
+
+    uint8_t prn_getCurrentPrinterState() const override;
+        //        0: printer OK
+        //          bit0: near paper end          bit1: no paper
+        //          bit2: temperature error       bit3: error head open
+        //          bit4: paper jam in cutter
+        //          bit6: no response             bit7: serial rec. error
+        //			bit5: printer not ready
 
 
+signals:
+    void hwapi_templatePrintFinished_OK(void) const override;
+    void hwapi_templatePrintFinished_Err(void) const override;
+    void hwapi_gotNewCoin(void) const override;
+    void hwapi_vendStopByMax(void) const override;
+    void hwapi_vendStopByPushbutton(void) const override;
 
-private:
-    void sub_storeSendingText(QByteArray *buf) const;
-
-
-
-
-
+ private slots:
+    void hwapi_slotPrintFinished_OK(void);
+    void hwapi_slotPrintFinished_Err(void);
+    void hwapi_slotGotCoin(void);
 
 };
 

include/interfaces.h

@@ -2,12 +2,9 @@
 #define INTERFACE_H
 
 #include <QtPlugin>
+#include <QStringList>
 
-
-
-struct T_emp
-{
-
+struct T_emp {
    // Fixdata from EMP:
    uint8_t shaft;      // = changer level
    uint16_t countryCode;
@@ -34,11 +31,9 @@ struct T_emp
 
    uint8_t pollingRunning;
    uint8_t paymentRunning;
-
 };
 
-struct Trtc_DateTime
-{
+struct Trtc_DateTime {
    uint8_t rtc_hour;
    uint8_t rtc_min;
    uint8_t rtc_sec;
@@ -48,8 +43,7 @@ struct Trtc_DateTime
    uint8_t rtc_dayOfWeek;
 };
 
-struct Tprn_hw_state
-{
+struct Tprn_hw_state {
     // hardware (IO's)
     bool powerRdBk;     // prn pwr is on
     bool rsSwOk;        // serial switch (printer or modem) is set to printer
@@ -66,8 +60,7 @@ struct Tprn_hw_state
     bool badResponse;
 };
 
- struct Tprn_currentSettings
-{
+struct Tprn_currentSettings {
     uint8_t currFont;
     uint8_t currSize;
     uint8_t currHeigth;
@@ -80,8 +73,7 @@ struct Tprn_hw_state
     bool    nowAligned;
 };
 
- struct T_dynDat
-{
+struct T_dynDat {
     uint8_t licensePlate[8];
     uint8_t vendingPrice[8];
     uint8_t parkingEnd[8];
@@ -92,10 +84,7 @@ struct Tprn_hw_state
     uint8_t dynDat7[8];
 };
 
-
-struct T_vaultRecord
-{
-
+struct T_vaultRecord {
     // Kassenbeleg (Abrechnungsdatensatz = Kassenwechsel-Datensatz)
     char startbuffer[4];		// Psa>  // never move or change this 1st entry
     uint16_t AccountingNumber;
@@ -126,7 +115,6 @@ struct T_vaultRecord
     uint32_t VKcoinsInserted[16];		// nur für Wechsler, soviel wurde eingeworfen
     uint32_t VKcoinsReturned[6];		// nur für Wechsler, Anzahl Münzen pro Typ, soviel wurde zurückgegeben
 //88
-
     // Service, Tür offen:
     uint16_t ServCoinsInserted[16];		// nur für Wechsler, soviel wurde eingeworfen
     uint16_t ServCoinsReturned[6];		// nur für Wechsler, Anzahl Münzen pro Typ, soviel wurde zurückgegeben
@@ -136,12 +124,10 @@ struct T_vaultRecord
     uint16_t resint5;
     uint16_t resint6;
 // 56
-
     char label4buffer[4];	// box>
     uint16_t coinsInVault[16];
     uint16_t billsInStacker[8];
 // 48
-
     char label5buffer[4];	// val>
     // actually constant unless exchange rate is changed
     uint16_t coinDenomination[16];	// 5..50000 (z.B. 2? sind in Ungarn 760Ft)
@@ -149,17 +135,12 @@ struct T_vaultRecord
     uint16_t tubeDenom[6];
     uint16_t exchangeRate;
     uint16_t resint9;
-
 // 64
-
     char endofblock[4];	// end>
-
 // 316 byte Block im Speicher
-
 };
 
-struct T_moduleCondition
-{
+struct T_moduleCondition {
     // store conditon of all system components, hold in RAM
     // 0 means unknown, not yet tested/used
     // 1 means OK
@@ -167,30 +148,29 @@ struct T_moduleCondition
     // 100..150	= WARNING
     // 200..250	= ERROR
 
-        uint8_t	structStart;		// always first!!!
-        uint8_t	ram;				// v
-        uint8_t	intEe;				// v
-        uint8_t	extEe;				// v
+    uint8_t	ram;
+    uint8_t	intEe;
+    uint8_t	extEe;
 
     uint8_t	rtc;				// 1: time/date OK   100: time not plausible  200: hardware error
-        uint8_t	boardHw;			// v
-        uint8_t	printer;			// v
-        uint8_t	modem;				// v
+    uint8_t	boardHw;
+    uint8_t	printer;
+    uint8_t	modem;
 
     uint8_t	signal;				//		1...99
     uint8_t	regist;				// 100:not  1:reg  2:ping OK   3:gotTime
     uint8_t	mdbBus;
     uint8_t	coinChecker;		// EMP, OMP or mei-cashflow
 
-        uint8_t	coinEscrow;			// v
-        uint8_t	mifareReader;		// v
-        uint8_t	creditTerm;			// not available
-        uint8_t	coinReject;			// v
+    uint8_t	coinEscrow;
+    uint8_t	mifareReader;
+    uint8_t	creditTerm;
+    uint8_t	coinReject;
 
-        uint8_t	coinSafe;			// v
-        uint8_t   billSafe;			// v
-        uint8_t	voltage;			// v	// 1:11..14V
-        uint8_t   temper;				// v
+    uint8_t	coinSafe;
+    uint8_t   billSafe;
+    uint8_t	voltage;			// 1:11..14V
+    uint8_t   temper;
 
     uint8_t	poweronTest;
     uint8_t   doorState;			// 1: alles zu  200: t?r offen + bit1(S) +bit2(CB) + bit3(CB)
@@ -206,70 +186,91 @@ struct T_moduleCondition
     uint8_t   res11;
     uint8_t   res12;
     uint8_t   res13;
-
 };
 
-struct T_dynamicCondition
-{
-        // dynamic conditions, change rapidly and frequently
-        // these are values for the Heartbeat
-
-        // T?rschalter entprellt:
+struct T_dynamicCondition {
+    char allDoorsDebounced;
+    char openedAuthorized;
+    uint8_t CBinDebounced;
     char upperDoor;		// 0:fehlt  1:drin
     char middleDoor;
     char lowerDoor;
     char coinBox;
-
     char billBox;
     char modeAbrech;
     char onAlarm;
     char nowCardTest;
-
     char nowPayment;
     char lastMifCardType;
-        char openedAuthorized;
-        char allDoorsDebounced;
-
     uint8_t lastSDoorState;
     uint8_t lastVDoorState;
-        uint8_t CBinDebounced;
     uint8_t lastCBstate;
-
     char        paymentInProgress;
     char        res1;
-        char res2;
-        char res3;
-
     uint16_t    U_Batt;
     uint16_t	Temperatur;
-
-        uint16_t	cash_storedaccNumbers[8];	// List all stored accounting numbers in ext. eeprom
-
     uint16_t	nrCoinsInBox;
-        uint16_t	resui1;
-
     uint32_t	amountInBox;
-        uint32_t	amountJustPaid;
-
-        uint16_t	lastInsCoinType;	// wahrscheinlich uchar
-        uint16_t	resui2;
-
     uint32_t	totalTransVolume;
     uint32_t	totalNrOfVends;
-
+    char        jsonValid_config;
+    char        jsonValid_device;
+    char        jsonValid_cash;
+    char        jsonValid_print;
+    char        jsonValid_serial;
+    char        jsonValid_time;
+    char        lastFileType;
+// 44
+    uint8_t     MifCardHolder[8];
+    uint8_t     resultOfLastTemplPrint;
+                // 0: unknown or printing in progress
+                // 1: OK, doc was printed   2: error, doc was not printed
+    uint8_t     lastPrinterStatus;
+                //        0: printer OK
+                //          bit0: near paper end          bit1: no paper
+                //          bit2: temperature error       bit3: error head open
+                //          bit4: paper jam in cutter
+                //          bit6: no response             bit7: serial rec. error
+                //			bit5: printer not ready
+//54
 };
 
+struct T_extTime {
+    uint8_t     Hours;
+    uint8_t     Min;
+    uint8_t     Sec;
+    uint8_t     Year;
+    uint8_t     Month;
+    uint8_t     Day;
+    uint8_t     DOW;
+    uint8_t     res1;
+    uint16_t    MinOfDay;
+    uint16_t    res2;
+    uint32_t    SecOfDay;
+    uint8_t     isLeapYear;
+    uint8_t     nxtLeapYear;
+    uint8_t     lastLeapYear;
+    uint8_t     hoursOfThisWeek;
+    uint16_t    minutesOfThisWeek;
+    uint16_t    hoursOfThisMonth;
+    uint16_t    daysOfThisYear;
+    uint16_t    GetHoursOfYear;
+    uint16_t    res3;
+    uint32_t    GetMinutesOfYear;
+    uint8_t     getWakeIntvSec;
+    uint8_t     res4;
+    uint16_t    res5;
+    uint32_t    MinutesOfMillenium;
+};
 
-class hwinf
-{
-
+class hwinf {
 public:
     enum class DownloadResult {OK, ERROR, TIMEOUT, NOP};
     enum class FileTypeJson {CONFIG=1, DEVICE, CASH, SERIAL, TIME, PRINTER};
 
     virtual ~hwinf() {}
                
-    
+    virtual QStringList dc_getStatus() const = 0;
                                            
     // $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$    
     //       Use serial interface and protocol stack in Cashagent-Library
@@ -306,6 +307,17 @@ public:
                              QString comPort) const = 0;
         // download binary file down into device controller
 
+    virtual bool dc_updatePrinterTemplate(enum FileTypeJson type,
+                                          QVector<int> templateIdx,
+                                          QVector<QString> fnames,
+                                          QString br,
+                                          QString serial = QString()) const = 0;
+
+    virtual bool dc_printTemplate(enum FileTypeJson type,
+                                  QVector<int> templateIdx,
+                                  QString br,
+                                  QString serial = QString()) const = 0;
+
     virtual void dc_autoRequest(bool on)  const =0;
         // on = true:  select that all READ-Requests are sent automatically 
         // on = false: select that all READ-Requests are sent manually one by one
@@ -1360,6 +1372,8 @@ public:
 
  */
 
+    virtual bool rtc_getExtendedTime(struct T_extTime *exTime) const=0;
+
     virtual bool sys_runCompleteTest(void) const=0;
         // warning: lasts 20s in one pace
         // return true if sending, false if cmd-stack is full
@@ -1384,15 +1398,18 @@ public:
         // nr = 1..32
         // return true if sending, false if cmd-stack is full
 
-        virtual void log_getHoldAccountNumbers(uint32_t *accNr ) const=0;
+    virtual void log_getHoldAccountNumbers(uint8_t *nrOfVals, uint16_t *accNr ) const=0;
         // returns all acc nrs of the backuped vault records
-        // use: uint32_t backupedAccNumbers[8]
+        // use: uint16_t backupedAccNumbers[8]
 
     virtual bool log_selectVaultRecord(uint16_t accountNr ) const=0;
         // return true if sending, false if cmd-stack is full
+        // and trigger transfer
 
-//request, isAvailable
-virtual void log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
+    virtual bool log_chkIfVaultRecordAvailable(void) const=0;
+        // return true if completly received
+
+    virtual bool log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
         // which was selected by: log_selectVaultRecord()
         // to be forwarded to Ismas
 
@@ -1402,7 +1419,8 @@ virtual void log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
     virtual bool prn_printTestTicket(void) const=0;
         // return true if sending to DC OK, false if cmd-stack is full
 
-    virtual bool cash_startPayment(uint16_t amount) const=0;
+    virtual bool cash_startPayment(uint32_t amount) const=0;
+        // 17.4.23TS: extended to 32bit
 
     virtual uint32_t getInsertedAmount(void) const=0;
 
@@ -1426,18 +1444,13 @@ virtual void log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
         // conclude payment process and return all inserted coins
 
 
-
-
-
-
-    virtual uint8_t mif_getCardType(QString cardholder) const=0;
+    virtual uint8_t mif_getCardType(QString *cardholder) const=0;
         // return 1,2,3,4 = upper, lower access card, printer test, coin test
         // cardholder: 7byte Name-String
 
     virtual uint64_t sys_getWakeSource(void) const =0;
         // retval: 6 bytes, bit coded, 1=event keeps DC awake
 
-    //virtual void sys_getDeviceConditions(struct T_moduleCondition *devCond) const=0;
     virtual void sys_getDeviceConditions(uint8_t *leng, uint8_t *data) const=0;
     /*
 
@@ -1474,8 +1487,7 @@ virtual void log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
 
      */
 
-
-    //virtual void sys_getDynMachineConditions(struct T_dynamicCondition *dynMachCond) const=0;
+    virtual void sys_getDeviceConditions(struct T_moduleCondition *devCond) const=0;
     virtual void sys_getDynMachineConditions(uint8_t *leng, uint8_t *data) const=0;
 /*
 
@@ -1541,6 +1553,31 @@ virtual void log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
 
 */
 
+    virtual void sys_getDynMachineConditions(struct T_dynamicCondition *dynMachCond) const=0;
+
+    // content of Cashbox
+    virtual uint32_t cash_getAmountInVault(void) const=0;
+
+    virtual uint16_t cash_getNrCoinsInVault(void) const=0;
+
+
+    virtual uint8_t prn_getPrintResult() const=0;
+
+    // in case of print-error get detailed error:
+    virtual uint8_t prn_getCurrentPrinterState() const=0;
+        //        0: printer OK
+        //          bit0: near paper end          bit1: no paper
+        //          bit2: temperature error       bit3: error head open
+        //          bit4: paper jam in cutter
+        //          bit6: no response             bit7: serial rec. error
+        //			bit5: printer not ready
+
+signals:
+    virtual void hwapi_templatePrintFinished_OK(void) const=0;
+    virtual void hwapi_templatePrintFinished_Err(void) const=0;
+    virtual void hwapi_gotNewCoin(void) const=0;
+    virtual void hwapi_vendStopByMax(void) const=0;
+    virtual void hwapi_vendStopByPushbutton(void) const=0;
 
 };
 
@@ -1558,10 +1595,15 @@ virtual void log_getVaultRecord(struct T_vaultRecord *retVR) const=0;
 // 29.03.2023: V3.1 some extensions for PSA1256_ptu5,
 //             V3.2 Bootloader improvement
 // 12.04.2023: V3.3 new features extended: loading and using Json-files, cash-collection, cash-data-logging
+// 14.04.2023: V3.4 new features extended: sys_getDynMachineConditions, sys_getDeviceConditions and
+//                    rtc_getExtendedTime return struct in addition. New function to select and get VaultRecord
+//
 
 //#define HWINF_iid "Atb.Psa2020.software.HWapi/3.1"
 //#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.1"
-#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.3"
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.3"
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.4"
+#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.5"
 
 
 

include/sendWRcmd.h

@@ -148,21 +148,23 @@
 
 
 // highest priority
-#define CMDSTACKDEPTH   16
+// #define CMDSTACKDEPTH   16
 // means: up to 16 cmd can be stored. They are issued one by one every 100ms
 void sendWRcmd_clrCmdStack(void);
-bool sendWRcmd_setSendCommand0(uint16_t nextCmd);
+bool sendWRcmd_setSendCommand0(uint16_t nextCmd, uint8_t dat1=0, uint8_t dat2=0,
+                               uint8_t dat3=0, uint8_t dat4=0);
     // GUI or app sends a command to DC transfered by serial
 
-uint16_t sendWRcmd_getSendCommand0(void);
+uint16_t sendWRcmd_getSendCommand0(uint8_t *dat1=0, uint8_t *dat2=0,
+                                   uint8_t *dat3=0, uint8_t *dat4=0);
 
 // lower priority
-#define CMD4STACKDEPTH   8
+// #define CMD4STACKDEPTH   8
 void sendWRcmd_clrCmd4Stack(void);
 bool sendWRcmd_setSendCommand4(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4);
 uint16_t sendWRcmd_getSendCommand4(uint8_t *dat1, uint8_t *dat2, uint8_t *dat3, uint8_t *dat4);
 
-#define CMD8STACKDEPTH   4
+// #define CMD8STACKDEPTH   4
 void sendWRcmd_clrCmd8Stack(void);
 bool sendWRcmd_setSendCommand8(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint16_t dat3, uint32_t dat4);
 uint16_t sendWRcmd_getSendCommand8(uint8_t *dat1, uint8_t *dat2, uint16_t *dat3, uint32_t *dat4);
@@ -171,7 +173,7 @@ uint16_t sendWRcmd_getSendCommand8(uint8_t *dat1, uint8_t *dat2, uint16_t *dat3,
 
 // lowest priority
 // wait for resonse before send next!
-bool sendWRcmd_setSendBlock160(uint8_t leng, uint8_t *buf);
+bool sendWRcmd_setSendBlock160(uint8_t leng, uint8_t const *buf);
 uint8_t sendWRcmd_getSendBlock160(uint8_t *leng, uint8_t *buf);
     // retval = *leng
 
@@ -179,7 +181,7 @@ void sendWRcmd_INI(void);
 
 
 
-uint8_t epi_store64ByteSendData(uint8_t length, uint8_t *buf);
+uint8_t epi_store64ByteSendData(uint8_t length, uint8_t const *buf);
     // HWapi writes data to be forwarded to DC and further to mdb-device
     // not batched! don't use twice within 100ms
 
@@ -211,18 +213,21 @@ uint8_t gpi_getUserOfSendingTextBuffer(uint8_t *para1, uint8_t *para2, uint8_t *
     // user=1: Text-Print is using this buffer
     //      2: QR-code-Printer is using this buffer
 
-#define     FDCMD_STACKDEPTH    16
+//#define     FDCMD_STACKDEPTH    16
 void sendFDcmd_clrStack(void);
 bool sendFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4);
     // write Command to memory, wait for transport
 bool sendFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum, uint8_t *dat1, uint8_t *dat2, uint8_t *dat3, uint8_t *dat4);
 
 uint8_t check4FDshortCmd(void);
-    // returns number of waiting command
+    // returns number of waiting command, maxFDCMD_STACKDEPTH
 
-#define     FDLONG_STACKDEPTH    16
+uint8_t check4freeFDshortCmd(void);
+    // returns number of free places in short-command stack
+
+//#define     FDLONG_STACKDEPTH    16
 void longFDcmd_clrStack(void);
-bool longFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t length, uint8_t *data);
+bool longFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t length, uint8_t const *data);
     // write Command to memory, wait for transport
     // data buffer size always 64! data[64], padded with 0
 bool longFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum, uint8_t *length, uint8_t *data);
@@ -230,6 +235,9 @@ bool longFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum, ui
 uint8_t check4FDlongCmd(void);
     // returns number of waiting command
 
+uint8_t check4freeFDlongCmd(void);
+    // returns number of free places in long-command stack
+
 
 #endif
 

include/serial_port_thread.h

@@ -0,0 +1,22 @@
+#ifndef SERIAL_PORT_THREAD_H_INCLUDED
+#define SERIAL_PORT_THREAD_H_INCLUDED
+
+#include <QThread>
+#include <QString>
+#include <QEventLoop>
+
+class SerialPortThread : public QThread {
+    Q_OBJECT
+
+    QEventLoop m_loop;
+public:
+    SerialPortThread(QObject *parent = nullptr);
+    virtual ~SerialPortThread();
+
+    virtual void run() override;
+
+    QEventLoop &getEventLoop() { return m_loop; }
+};
+
+
+#endif // SERIAL_PORT_THREAD_H_INCLUDED

include/serial_port_worker.h

@@ -0,0 +1,121 @@
+#ifndef SERIAL_PORT_WORKER_H_INCLUDED
+#define SERIAL_PORT_WORKER_H_INCLUDED
+
+#include <QObject>
+#include <QString>
+#include <QTimer>
+#include <QSerialPort>
+#include <QSerialPortInfo>
+#include <QThread>
+
+#include <assert.h>
+#include <condition_variable>
+#include <mutex>
+#include <queue>
+#include <deque>
+#include <iostream>
+#include <atomic>
+
+
+struct Command {
+    enum : uint16_t {PRIORITY_1, PRIORITY_2, PRIORITY_3, PRIORITY_4, END_MARK};
+    enum : uint16_t {QUIT_SENTINEL = 0x1000, SEND_BLOCK_SIZE = 160};
+    uint32_t m_priority;
+    uint16_t m_priorityClass;
+    uint16_t m_cmdId;
+    char    *m_sendBuffer;
+    char    *m_recvBuffer;
+    uint8_t m_sendBufferLength;
+    uint8_t m_recvBufferLength; // expected result length
+
+    static std::atomic<uint8_t> m_nextSendBufferIndex;
+    static std::atomic<uint8_t> m_nextRecvBufferIndex;
+    static char m_sendBuffers[256][SEND_BLOCK_SIZE];
+    static char m_recvBuffers[256][SEND_BLOCK_SIZE];
+
+    static uint32_t getNextCommandPriority(uint8_t cmdType);
+    static char *getNextSendBuffer();
+    static char *getNextRecvBuffer();
+
+ public:
+    Command(uint16_t cmdId, uint8_t sendBufferLength, uint8_t recvBufferLength, uint8_t priorityClass);
+    Command();
+
+    friend bool operator< (Command const& lhs, Command const& rhs) {
+        return lhs.m_priority < rhs.m_priority;
+    }
+
+    friend std::ostream& operator<< (std::ostream& os, Command const& cmd) {
+        return os << "{ " << cmd.m_priority << ", '" << cmd.m_priority << "' } ";
+    }
+};
+
+/// \brief SerialPortWorker
+///
+/// SerialPortWorker sends and receives data from serial port
+///
+class SerialPortWorker : public QThread {
+    Q_OBJECT
+
+    /// \brief Internal serial port.
+    QSerialPort m_serialPort;
+
+    /// \brief Internal serial port info.
+    QSerialPortInfo m_serialPortInfo;
+
+    /// \brief Flag indicating if serial port is opened.
+    bool m_serialPortOpened;
+
+    /// \brief Port name of serial port.
+    QString     m_portName;
+
+    /// \brief Baudrate of internal serial port.
+    enum QSerialPort::BaudRate m_baudRate;
+
+    std::priority_queue<Command, std::deque<Command>> m_sendQueue;
+    std::deque<Command> m_recvQueue;
+    std::mutex m_sendQueueMutex;
+    std::mutex m_recvQueueMutex;
+    std::condition_variable m_sendQueueCondVar;
+    std::condition_variable m_recvQueueCondVar;
+
+    std::atomic<uint32_t> m_bytesWritten;
+    std::atomic<uint32_t> m_bytesAvailable;
+
+    SerialPortWorker(QString portName, QSerialPort::BaudRate baudRate, QObject *parent = nullptr);
+
+    Command getNextCommand();
+    void insertResult(Command const &result);
+
+    enum : uint16_t {TIMEOUT = 100, WAIT_TIME_MAX = 1000};
+
+  public:
+    ~SerialPortWorker();
+
+    SerialPortWorker(SerialPortWorker const &) = delete;
+    void operator=(SerialPortWorker const &) = delete;
+
+    // serial port im plugin anlegen. erst dann kann getInstance() benutzt werden
+    static SerialPortWorker &getInstance(QString portName, QSerialPort::BaudRate baudRate, QObject *parent = nullptr) {
+        static SerialPortWorker serialPortWorker(portName, baudRate, parent);
+        return serialPortWorker;
+    }
+
+    bool openSerialPort();
+    void closeSerialPort();
+
+    bool isPortOpen() const { return m_serialPortOpened; }
+
+    void insertCommand(Command const &cmd);
+    bool getNextResult(Command &result, int timeout = 1000);
+
+    virtual void run() override;
+
+    void quit();
+
+private slots:
+    void getBytesAvailable();
+    bool getNumberOfBytesWritten(qint64);
+};
+
+#endif // SERIAL_PORT_WORKER_H_INCLUDED

include/shared_mem_buffer.h

@@ -0,0 +1,347 @@
+#ifndef SHARED_MEM_BUFFER_INCLUDED_H
+#define SHARED_MEM_BUFFER_INCLUDED_H
+
+#include <cinttypes>
+#include <atomic>
+
+#include <QSharedMemory>
+
+// TODO: pid eintragen und convars/mutexe eintragen
+
+#ifdef __linux__
+
+
+#include <pthread.h>
+
+// PTHREAD_PROCESS_SHARED
+
+#else
+// WIN32
+#endif
+
+struct SharedMemBuffer {
+    int init;
+    char appName[32];
+    pid_t pid;
+    pthread_condattr_t sndCndA;
+    pthread_cond_t sndCndV;
+    pthread_mutexattr_t sndMtxA;
+    pthread_mutex_t sndMtx;
+
+    pthread_condattr_t rcvCndA;
+    pthread_cond_t rcvCndV;
+    pthread_mutexattr_t rcvMtxA;
+    pthread_mutex_t rcvMtx;
+
+    struct rs {
+        char comportName[16]; // z.B. "COM48"
+        char baudStr[16];     // z.B. "19200"
+        int  baudNr;          // 0...5 oder -1
+        uint8_t connect;      // 0,1
+        bool portIsOpen;
+    } rs;
+
+    char AutoEmissionOn;     // 1: zyklisch Anfragen zum Slave senden
+
+    struct datif {
+#define DATIF_MAXCMDS 16
+        uint16_t sendingPeriod;
+        bool     sendingPer_changed;
+        uint8_t  OutCmdpara1;
+        uint8_t  OutCmdpara2;
+        uint8_t  OutCmdpara3;
+        uint8_t  OutCmdpara4;
+        uint16_t OutCmdpara5;
+        uint32_t OutCmdpara6;
+        uint8_t  dataStep;
+        uint8_t  scanStep;
+        uint8_t  RDBLKNR;
+        uint8_t  cycl_running;
+    } datif;
+
+    struct txt4 {
+        char comStateLine[32];
+        char HsStateLine[32];
+        char masterStateLine[32];
+        char resultStateLine[32];
+        char dataLine[32];
+        char datifReceive[32];
+        char diagWindow[32];
+        char sndDiagWindow[32];
+    } txt4;
+
+    struct dcBL {
+#define SIZEBLRESP      50
+#define RAW_BL_DATALEN 150
+        uint8_t  LastBLcmd;   // stored the last sent cmd in order to analys response
+        uint8_t  AtbBinFile[300000];
+        uint32_t fileSize;
+        uint16_t nrOfBlocks;
+        uint16_t fileCrc;
+        uint8_t  myBuf[300000]; // same content like "dcBL_AtbBinFile" but bytewise
+        char     Resp[SIZEBLRESP][32];
+        int      pResp;
+        uint8_t  step;
+        uint8_t  state;
+        uint16_t BlkCtr;
+        uint16_t cyclCtr;
+        uint16_t repeatCtr;
+    } dcBL;
+
+    struct {
+        uint16_t shutterTime;
+        char ticketTemplate[1024];
+    } hwapi;
+
+    struct {
+        uint8_t  sendAsynchDataBuf[160]; // no stack, only ONE buffer
+        uint8_t  sendAsyDatLen;
+    } next;
+
+    struct { // highest priority
+#define CMDSTACKDEPTH  16
+        // up to 16 cmd can be stored. They are issued one by one every 100ms
+        uint16_t AsynchSend[CMDSTACKDEPTH];
+        uint8_t  para1[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  para2[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  para3[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  para4[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  nrOfCmdsInQueue;
+    } Cmd0;
+
+    struct { // lower priority
+             // Command Stack for commands with 4 parameters
+#define CMD4STACKDEPTH   8
+        uint16_t AsynchSend[CMD4STACKDEPTH];
+        uint8_t  para1[CMD4STACKDEPTH];
+        uint8_t  para2[CMD4STACKDEPTH];
+        uint8_t  para3[CMD4STACKDEPTH];
+        uint8_t  para4[CMD4STACKDEPTH];
+        uint8_t  nrOfCmdsInQueue;
+    } Cmd4;
+
+    struct {
+#define CMD8STACKDEPTH   4
+        uint16_t AsynchSend[CMD8STACKDEPTH];
+        uint8_t  para1[CMD8STACKDEPTH];
+        uint8_t  para2[CMD8STACKDEPTH];
+        uint16_t para3[CMD8STACKDEPTH];
+        uint32_t para4[CMD8STACKDEPTH];
+        uint8_t  nrOfCmdsInQueue;
+    } Cmd8;
+
+    struct { // short command, 4 data bytes
+#define FDCMD_STACKDEPTH 16
+        uint8_t  wrCmd[FDCMD_STACKDEPTH];
+        uint8_t  rdCmd[FDCMD_STACKDEPTH];
+        uint8_t  blkNr[FDCMD_STACKDEPTH];
+        uint8_t  para1[FDCMD_STACKDEPTH];
+        uint8_t  para2[FDCMD_STACKDEPTH];
+        uint8_t  para3[FDCMD_STACKDEPTH];
+        uint8_t  para4[FDCMD_STACKDEPTH];
+        uint8_t  cmdsInQueue;
+    } FDShort;
+
+    struct { // long command, 64 data bytes
+#define FDLONG_STACKDEPTH 16
+        uint8_t wrCmd[FDLONG_STACKDEPTH];
+        uint8_t rdCmd[FDLONG_STACKDEPTH];
+        uint8_t blkNr[FDLONG_STACKDEPTH];
+        uint8_t length[FDLONG_STACKDEPTH];
+        uint8_t para[FDLONG_STACKDEPTH][64];
+        uint8_t cmdsInQueue;
+    } FDLong;
+
+    struct {
+        uint8_t DataParameters[4];
+        uint8_t DataBufferUser;
+        uint8_t pDataBuff;        // points to next PRINTER_BLOCK
+    } prn;
+
+    struct {
+        bool savePrnPwr;
+        bool saveMifPwr;
+        bool MdbIsOn;
+    } indat;
+
+    uint8_t ndbs;
+    uint8_t pari;
+    uint8_t nsb;
+    uint8_t br;
+
+#define MAXNROF_GENSTR 16
+    char        genStrings[MAXNROF_GENSTR][64];
+
+#define MAXNROF_AI 4
+    uint16_t    AI_val[MAXNROF_AI];
+
+    struct DigitalInputs {
+        uint8_t doorSwitch;
+        uint8_t vaultSwitch;
+        uint8_t lockSwitch;
+        uint8_t opto;
+        uint8_t aux;
+        bool wakeFromPtu;
+        bool wakeFromMdb;
+        bool wakeFromModem;
+        bool PrnReady;
+        bool CoinAttach;
+        bool CoinEscrowOpen;
+        bool mifCardTap;
+        bool contactPwrOn;
+        bool mifarePwrOn;
+        bool rdbk_mdbTxd;
+        bool AuxPwrOn;
+        bool gsmPwrOn;
+        bool creditPwrOn;
+        bool printerPwrOn;
+        bool mdbPwrOn;
+        bool rejMot_home;
+        uint8_t npe_sensor;
+    } din;
+
+    struct DigitalOutputs {
+        uint8_t mbdRxTst;
+        uint8_t motorBits;
+        uint8_t serialSwitch;                 // serial drv on/off, Serial mux1, Serial mux2
+        uint8_t ledsAndFan;
+        uint8_t laermUndRelay;
+        uint8_t ptuWake;
+        uint8_t auxPower;
+        uint8_t coinShutter;
+        uint8_t coinEscrow;
+        uint8_t printerPower;
+    } dout;
+
+    struct Sdata {
+#define NROFMIFSTATEBYTES       40
+#define PRN_STATE_ARRAY_SIZE    20
+#define PRN_STATE_FONT_SIZE     20
+#define MAXNROF_PRNBYTES   64
+#define MAXNROF_PRNBLOCKS  20
+        uint8_t MIF_STATE[NROFMIFSTATEBYTES];
+        uint8_t MIF_DATA[12][64];
+        uint8_t PRN_STATE[PRN_STATE_ARRAY_SIZE];
+        uint8_t PRN_FONTS[PRN_STATE_FONT_SIZE];
+        char PRN_TEXT[MAXNROF_PRNBLOCKS][MAXNROF_PRNBYTES];
+        bool mdb_busRdy;
+        bool mdb_V12on;
+        bool mdb_V5on;
+        uint8_t mdbNrOfRecData;
+        uint8_t RecBuff[40];
+        uint8_t empNrOfsettings;
+        uint8_t emp_settingsBuff[66];
+        uint8_t NrOfDeviceSetting;
+        uint8_t DeviceSettingBuff[66];
+        uint8_t NrOfMachineIDSetting;
+        uint8_t NrOfMachineIDBuff[66];
+        uint64_t slaveUID;
+        uint8_t UIDstr[8];
+#define MAXNROF_MEASURE 4
+        uint32_t measurement[MAXNROF_MEASURE];
+        bool serialTestResult;
+        uint8_t pProtResultOk;
+        uint16_t receivedDataLength;
+        uint8_t receivedDataBlock[64];
+        uint8_t rawData[150];
+        uint8_t LengthRawData;
+        uint8_t mdbSendBuffer[64];
+        uint8_t mdbSendLen;
+    } Sdata;
+
+    uint8_t mif_cardType;
+    uint8_t mif_cardHolder[8];
+
+#define MEMDEPTH_GOTCOINS (16)
+    struct T_coin {
+        uint8_t valid;
+        uint8_t signal;
+        uint8_t error;
+        uint8_t pad;
+        uint16_t value;
+    } gotCoin[MEMDEPTH_GOTCOINS];
+    uint8_t ctr_gotCoin;
+
+    struct store {
+        uint32_t insertedAmount;
+        uint16_t lastCoinType[64];
+        uint16_t lastCoinValue[64];
+        uint64_t wakeSrc;
+        uint8_t rbDevParamLen;
+        uint8_t rbDevParams[66];
+        uint8_t deviceCondLen;
+        uint8_t deviceCond[66];
+        uint8_t machCondLen;
+        uint8_t machCond[66];
+        uint8_t DcBackupNrOfAccNr;
+        uint16_t DcBackupAccNr[16];    // z.Z. nur 8
+        uint8_t gotNrBlocksOfVaultRec;
+        uint8_t vaultrecord[360];
+        uint32_t amount;
+        uint16_t nrOfCoins;
+    } store;
+
+    struct T_globTime {
+        // Reihenfolge nicht vertauschen!!!!!
+        uint8_t     hour;
+        uint8_t     minute;
+        uint8_t     second;
+        uint8_t     Year;
+        uint8_t     Month;
+        uint8_t     DayOfMonth;
+        uint8_t     DayOfWeek;          // 1=monday...7
+        uint8_t     reserve1;
+
+        uint16_t     MinutesOfToday;
+        uint16_t     reserve2;
+
+        uint32_t     SecondsOfToday;
+
+        uint8_t      IsLeapyear;
+        uint8_t      nextLeap;
+        uint8_t      lastLeap;
+        uint8_t      hoursOfWeek;
+
+        uint16_t     minOfWeek;
+        uint16_t     hoursOfMonth;
+        uint16_t     minOfMonth;
+        uint16_t     dayOfYear;
+        uint16_t     hoursOfYear;
+        uint16_t     reserve3;
+
+        uint32_t     minOfYear;
+
+        uint8_t      squareOutMode;
+        uint8_t      free1;
+        uint16_t     reserve4;
+        uint32_t     minOfMillenium;
+        // bis hierher 44byts
+        uint32_t    free2;
+        uint32_t    free3;
+        uint32_t    free4;
+    } getGlobalTime;
+
+    static QSharedMemory *getShm(std::size_t s = 0);
+    static SharedMemBuffer *getData() {
+        return (SharedMemBuffer *)getShm()->data();
+    }
+    static SharedMemBuffer const *getDataConst() {
+        return (SharedMemBuffer const *)getShm()->data();
+    }
+
+#if 0
+    static std::atomic<bool> __sharedMemLocked;
+
+    static bool sharedMemLocked() {
+        return __sharedMemLocked;
+    }
+    static void setSharedMemLocked() {
+        __sharedMemLocked = true;
+    }
+    static void setSharedMemUnlocked() {
+        __sharedMemLocked = false;
+    }
+#endif
+};
+
+#endif // SHARED_MEM_BUFFER_INCLUDED_H

include/storeINdata.h

@@ -8,7 +8,7 @@
 
 
 #define MAXNROF_AO              3
-#define MAXNROF_GENSTR          16
+//#define MAXNROF_GENSTR          16
 #define MAXNROF_CONTR_PORTS     11
 #define MAXNROF_DIports         2
 #define MAXNROF_DOports         2
@@ -32,9 +32,6 @@ bool indat_isMifareOn();
 void indat_storeMDBisOn(bool isOn);
 bool indat_isMdbOn();
 
-
-
-
 void gpi_storeSlaveSerParams(uint8_t slaveBaudRate, uint8_t NrDataBits,
                              uint8_t parity, uint8_t NrStopBits);
 
@@ -43,23 +40,16 @@ void epi_getSlaveSerParams(uint8_t *slaveBaudRate, uint8_t *NrDataBits,
 
 QString epi_getSlaveParamSTR();
 
-
-
-
-
 void gpi_storeGenerals(uint8_t genNr, QString text);
     // 0=HW   1=SW  2=State
-
 QString epi_loadGenerals(uint8_t genNr);
 // genNr=0=HW   1=SW  2=State
 
 
-void gpi_storeUID(uint8_t *buf8byteUid);
+void gpi_storeUID(uint8_t const *buf8byteUid);
 // buffer size: 8 byte
-
 void epi_getUIDdec(uint8_t *buf8byteUid);
 // buffer size: 8 byte
-
 QString epi_getUIDstr();
 
 
@@ -89,7 +79,7 @@ void epi_getSpecialYearTimeDate(uint16_t *DayOfYear, uint16_t *HoursOfYear, uint
 // ///////////////////////////////////////////////////////////////////////////////////
 
 
-#define MAXNROF_AI              4
+// #define MAXNROF_AI              4
 
 void gpi_storeAIs(uint8_t aiNr, uint16_t val);   // rs -> Sdata
 
@@ -138,185 +128,119 @@ void gpi_storeDI_optos(uint8_t indatOpto);
 uint8_t epi_getDI_optos(void);
     // bit0: opto in 1    1: opto in 2
 
-void gpi_storeDI_auxIn(uint8_t indatAuxIn);
-    // Aux0...5
-
-uint8_t epi_getDI_auxIn(void);
-    // bit0: auxin 1  ...  5: auxin 6
-
-void gpi_storeDI_ptuWake(uint8_t indat);
+uint8_t gpi_storeDI_auxIn(uint8_t indatAuxIn); // Aux0...5
+uint8_t epi_getDI_auxIn(void);                 // bit0: auxin 1  ...  5: auxin 6
 
+bool gpi_storeDI_ptuWake(bool w);
 bool epi_getDI_ptuWake(void);
 
-void gpi_storeDI_mbdWake(uint8_t indat);
-
+bool gpi_storeDI_mbdWake(bool w);
 bool epi_getDI_mdbWake(void);
 
-void gpi_storeDI_prnReady(uint8_t indat);
-
+bool gpi_storeDI_prnReady(bool ready);
 bool epi_getDI_prnReady(void);
 
-void gpi_storeDI_CoinAttach(uint8_t indat);
-
+bool gpi_storeDI_CoinAttach(bool attach);
 bool epi_getDI_CoinAttach(void);
 
-void gpi_storeDI_CoinEscrow(uint8_t indat);
-
+bool gpi_storeDI_CoinEscrow(bool ce);
 bool epi_getDI_CoinEscrow(void);
 
-void gpi_storeDI_mifareCardTapped(uint8_t indat);
-
+bool gpi_storeDI_mifareCardTapped(bool tapped);
 bool epi_getDI_mifareCardTapped(void);
 
-void gpi_storeDI_modemWake(uint8_t indat);
-
+bool gpi_storeDI_modemWake(bool w);
 bool epi_getDI_modemWake(void);
 
-
-void gpi_storeDI_contactPowerIsOn(bool di_contact_PwrOn);
-
+bool gpi_storeDI_contactPowerIsOn(bool on);
 bool epi_getDI_contactPwr(void);
 
-void gpi_storeDI_MifarePowerIsOn(bool di_mifare_PwrOn);
-
+bool gpi_storeDI_MifarePowerIsOn(bool on);
 bool epi_getDI_mifarePwr(void);
 
-void gpi_storeDI_readbackMdbTxD(bool di_rdbkMdbTxd);
-
+bool gpi_storeDI_readbackMdbTxD(bool rdbkMdbTxd);
 bool epi_getDI_mdbTxd(void);
 
-void gpi_storeDI_AuxPowerIsOn(bool di_Aux_PwrOn);
-
+bool gpi_storeDI_AuxPowerIsOn(bool on);
 bool epi_getDI_auxPwr(void);
 
-void gpi_storeDI_GsmPowerIsOn(bool di_gsm_PwrOn);
-
+bool gpi_storeDI_GsmPowerIsOn(bool on);
 bool epi_getDI_gsmPwr(void);
 
-void gpi_storeDI_CreditPowerIsOn(bool di_credit_PwrOn);
-
+bool gpi_storeDI_CreditPowerIsOn(bool on);
 bool epi_getDI_creditPwr(void);
 
-void gpi_storeDI_PrinterPowerIsOn(bool di_printer_PwrOn);
-
+bool gpi_storeDI_PrinterPowerIsOn(bool on);
 bool epi_getDI_printerPwr(void);
 
-void gpi_storeDI_MdbPowerIsOn(bool di_mdb_PwrOn);
-
+bool gpi_storeDI_MdbPowerIsOn(bool on);
 bool epi_getDI_mdbPwr(void);
 
-
-void gpi_storeDI_rejMot_home(bool di);
-
+bool gpi_storeDI_rejMot_home(bool reject);
 bool epi_getDI_rejectMotor_homepos(void);
 
-void gpi_storeDI_paperLow(uint8_t di);
-
+uint8_t gpi_storeDI_paperLow(uint8_t di);
 uint8_t epi_getDI_npe_sensor(void);
     // 0: Sensor sees paper 1: no paper 99: off
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
 // ///////////////////////////////////////////////////////////////////////////////////
 //          readback digital outputs
 // ///////////////////////////////////////////////////////////////////////////////////
 
-void gpi_storeDO_mdbRxTst(uint8_t do_mbdRxTst);
-
+uint8_t gpi_storeDO_mdbRxTst(uint8_t do_mbdRxTst);
 bool epi_getDO_mdbRxTestOut(void);
 
-
-void gpi_storeDO_motorOutputs(uint8_t Pwr);
-
+uint8_t gpi_storeDO_motorOutputs(uint8_t Pwr);
 uint8_t epi_getDO_motorOuts(void);
     // bit0: upper lock forward    bit 1 backward
     // bit2: lower lock forward    bit 3 backward
 
-
-void gpi_storeDO_serialSwitch(uint8_t state);
+uint8_t gpi_storeDO_serialSwitch(uint8_t state);
     // serial drv on/off, Serial mux1, Serial mux2
-
 uint8_t epi_getDO_serialSwitch(void);
     // serial drv on/off, Serial mux1, Serial mux2
 
 bool epi_getDO_serialDriverIsOn(void);
-
 bool epi_getDO_serialMux1isSetToPrinter(void);
     // mux1 off: serial is switched to printer
 
 bool epi_getDO_serialMux1isSetToModem(void);
     // mux1 on: serial is switched to modem
-
 bool epi_getDO_serialMux2isSetToCredit(void);
     // mux2 off: serial is switched to credit card terminal
-
 bool epi_getDO_serialMux2isSetToMifare(void);
     // mux2 on: serial is switched to mifare reader
 
-
-void gpi_storeDO_ledsAndFan(uint8_t ledState);
-
+uint8_t gpi_storeDO_ledsAndFan(uint8_t ledState);
 bool epi_getDO_led_coin(void);
-
 bool epi_getDO_led_front(void);
-
 bool epi_getDO_led_ticket(void);
-
 bool epi_getDO_led_pin(void);
-
 bool epi_getDO_led_start(void);
-
 bool epi_getDO_led_inside(void);
-
 bool epi_getDO_fan(void);
 
-void gpi_storeDO_sirenAndRelay(uint8_t sirenRelay);
-
+uint8_t gpi_storeDO_sirenAndRelay(uint8_t sirenRelay);
 bool epi_getDO_sirene(void);
-
 bool epi_getDO_relay(void);
 
-void gpi_storeDO_ptuWake(uint8_t state);
-
+uint8_t gpi_storeDO_ptuWake(uint8_t state);
 bool epi_getDO_ptuWake(void);
 
-void gpi_storeDO_auxPower(uint8_t pwr);
-
+uint8_t gpi_storeDO_auxPower(uint8_t pwr);
 bool epi_getDO_auxPower(void);
 
-
-void gpi_storeDO_coinShutter(uint8_t state);
-
+uint8_t gpi_storeDO_coinShutter(uint8_t state);
 bool epi_getDO_coinShutterOpen(void);
-
 bool epi_getDO_coinShutterTest(void);
 
-
-void gpi_storeDO_coinEscrow(uint8_t state);
-
+uint8_t gpi_storeDO_coinEscrow(uint8_t state);
 uint8_t epi_getDO_coinEscrow(void);
     // retval: 1:return flap is open   2:take flap is open    0:closed
 
-
-void gpi_storeDO_printerPwrOn(uint8_t state);
-
+uint8_t gpi_storeDO_printerPwrOn(uint8_t state);
 uint8_t epi_getDO_printerPwr(void);
 
-
-
 // ---------------------------------------------------------------------------------------------
 // counterchecks, make sure that DC-outputs are correct
 
@@ -363,21 +287,14 @@ bool epi_cntchk_Mot2Fon(void);
 
 uint8_t gpi_storeMdbRecData(uint8_t length, uint8_t *buf);
     // datif store received mdb data
-
 uint8_t epi_getMdbResponse(void);
      // 0=no response  1=ACK  2=NAK  3=ACK with data
-
 uint8_t epi_getMdbRecLength(void);
     // 0...31
-
 uint8_t epi_restoreMdbRecData(uint8_t *buf);
     // hwapi reads received mdb data from PI
 
-
-
-
-
-uint8_t gpi_storeMifReaderStateAndCardType(uint8_t *buf);
+uint8_t gpi_storeMifReaderStateAndCardType(uint8_t const *buf);
 
 /* data description:
 byte 0: current read state: 0=power off  1=reader-fault 2=ready
@@ -401,41 +318,24 @@ byte 32: result, always 0
 
 uint8_t epi_restoreMifState(uint8_t *buf, uint8_t maxBufferSize);
     // retval 0=OK 1=error host buffer too small
-
-void gpi_storeMifCardData(uint8_t blkNr, uint8_t *receivedData);
+bool gpi_storeMifCardData(uint8_t blkNr, uint8_t const *receivedData);
     // blkNr=0...11    receivedData[64]
-
 uint8_t epi_restoreMifData(uint8_t blkNr, uint8_t *buf, uint8_t maxBufferSize);
     // blkNr=0...11    return buf[64]
     // retval: 1=error 0=OK
 
-
-
-#define pi_prnStateArraySize    20
-#define pi_prnFontArraySize     20
-
 void epi_restorePrinterState(uint8_t *buf);
-
-void gpi_storePrinterState(uint8_t *buf);
+void gpi_storePrinterState(uint8_t const *buf);
 
 void epi_restorePrinterFonts(uint8_t *buf);
+void gpi_storePrinterFonts(uint8_t const *buf);
 
-void gpi_storePrinterFonts(uint8_t *buf);
-
-
-
-
-void gpi_storeMdbState(uint8_t busReady, uint8_t V12on, uint8_t V5on );
-
+bool gpi_storeMdbState(bool busReady, bool V12on, bool V5on);
 bool epi_restoreMdbBusReady(void);
-
 bool epi_restoreMdbV12Ready(void);
-
 bool epi_restoreMdbV5Ready(void);
 
-
-void gpi_storeMdbResponse(uint8_t leng, uint8_t *data);
-
+void gpi_storeMdbResponse(uint8_t leng, uint8_t const *data);
 void epi_restoreMdbResponse(uint8_t *leng, uint8_t *data);
     // last received mdb answer (from mdb device)
     // only needed if a special command was sent directly
@@ -444,12 +344,9 @@ void epi_restoreMdbResponse(uint8_t *leng, uint8_t *data);
     // DB2: nr of received (payload) data bytes (apart from ACK, can be 0....34)
     // DB3...DB38: rec.data (payload)
 
-
-void gpi_storeEmpSettings(uint8_t leng, uint8_t *data);
-
+void gpi_storeEmpSettings(uint8_t leng, uint8_t const *data);
 void epi_restoreEmpSettings(uint8_t *leng, uint8_t *data);
 
-
 /*
 void gpi_storeEmpCoinSignal(uint8_t leng, uint8_t *data);
 
@@ -463,67 +360,60 @@ void epi_restoreEmpCoinSignal(uint8_t *leng, uint8_t *data);
 void epi_clearEmpCoinSignal();
 */
 
-#define     MEMDEPTH_GOTCOINS       16
 
-void gpi_storeEmpCoinSignal(uint8_t leng, uint8_t *data);
+void gpi_storeEmpCoinSignal(uint8_t leng, uint8_t const *data);
 
 uint8_t epi_isNewCoinLeft(void);
     // retval: 0...16 coins left in FIFO
-
 void epi_restoreEmpCoinSignal(uint8_t *valid, uint8_t *signal, uint8_t *error, uint16_t *value);
 
-
-
-void gpi_storeRbDeviceSettings(uint8_t leng, uint8_t *data);
-
+void gpi_storeRbDeviceSettings(uint8_t leng, uint8_t const *data);
 void epi_restoreRbDeviceSettings(uint8_t *leng, uint8_t *data);
 
-
-void gpi_storeMachineIDsettings(uint8_t leng, uint8_t *data);
-
+void gpi_storeMachineIDsettings(uint8_t leng, uint8_t const *data);
 void epi_restoreMachineIDsettings(uint8_t *leng, uint8_t *data);
 
-
-
-
 void epi_clearCurrentPayment(void);
-
 void gpi_storeCurrentPayment(uint32_t insertedAmount, uint16_t lastCoinType, uint16_t lastCoinValue);
 
 uint32_t epi_CurrentPaymentGetAmount(void);
-
 uint16_t epi_CurrentPaymentGetLastCoin(void);
 
 bool epi_CurrentPaymentGetAllCoins(uint16_t *types, uint16_t *values);
     // alle bei diesem Verkauf eingeworfenen Münzen sind gespeichert falls die jmd. braucht
 
-
-void gpi_storeWakeSources(uint8_t *receivedData);
-
+void gpi_storeWakeSources(uint8_t const *receivedData);
 uint64_t epi_getWakeSources(void);
 
-
-
-void gpi_storeExtendedTime(uint8_t leng, uint8_t *data);
-
+void gpi_storeExtendedTime(uint8_t leng, uint8_t const *data);
 void epi_restoreExtendedTime(uint8_t *leng, uint8_t *data);
 
-
-
-void gpi_storeDeviceConditions(uint8_t leng, uint8_t *data);
-
+void gpi_storeDeviceConditions(uint8_t leng, uint8_t const *data);
 void epi_restoreDeviceConditions(uint8_t *leng, uint8_t *data);
 
-
-void gpi_storeDynMachineConditions(uint8_t leng, uint8_t *data);
-
+void gpi_storeDynMachineConditions(uint8_t leng, uint8_t const *data);
 void epi_restoreDynMachineConditions(uint8_t *leng, uint8_t *data);
 
+void gpi_storeDCbackupAccNr(uint8_t leng, uint8_t const *data);
+void epi_restoreDCbackupAccNr(uint8_t *leng, uint16_t *accNrs);
+    // return accNrs[0..7]
 
+void epi_iniVRstorage(void);
+void gpi_storeVaultRecord(uint8_t blkNr, uint8_t const *data);
+bool epi_checkIfVaultRecordAvailable(void);
+bool epi_restoreVaultRecord(uint16_t *length, uint8_t *buf);
+    // true if completly received
 
+void gpi_storeCBlevel(uint32_t amount, uint16_t nrOfCoins);
 
+uint32_t epi_getCashBoxContent(void);
+uint16_t epi_getNrOfCoinsInCashBox(void);
 
+void gpi_storeNewMifareCard(uint8_t typ, uint8_t const *holder);
 
+uint8_t epi_mifGetCardType(uint8_t const *holder);
+    //holder[8] = name of card holder
+    // retval Type of MifareCard, 1=upper door, 2=lower door 3=test printer 4=test coins
 
 #endif
 

include/tslib.h

@@ -13,6 +13,9 @@ uint32_t uchar2ulong(uint8_t Highbyte, uint8_t MHbyte, uint8_t MLbyte, uint8_t L
 
 uint8_t  uint2uchar(uint16_t uival, bool getHighB);
 
+uint8_t ulong2uchar(uint32_t ulval, uint8_t getBytNr);
+    // getBytNr: 0=LSB  3=MSB
+
 
 void delay(uint16_t MilliSec);
 

plugins/interfaces.h

@@ -122,17 +122,17 @@ struct T_vaultRecord
 //16
         char label3buffer[4];	// mw >
 
-        // Verkauf, T<EFBFBD>r zu:
-        uint32_t VKcoinsInserted[16];		// nur f<EFBFBD>r Wechsler, soviel wurde eingeworfen
-        uint32_t VKcoinsReturned[6];		// nur f<EFBFBD>r Wechsler, Anzahl M<EFBFBD>nzen pro Typ, soviel wurde zur<EFBFBD>ckgegeben
+        // Verkauf, Tür zu:
+        uint32_t VKcoinsInserted[16];		// nur für Wechsler, soviel wurde eingeworfen
+        uint32_t VKcoinsReturned[6];		// nur für Wechsler, Anzahl Münzen pro Typ, soviel wurde zurückgegeben
 //88
 
-        // Service, T<EFBFBD>r offen:
-        uint16_t ServCoinsInserted[16];		// nur f<EFBFBD>r Wechsler, soviel wurde eingeworfen
-        uint16_t ServCoinsReturned[6];		// nur f<EFBFBD>r Wechsler, Anzahl M<EFBFBD>nzen pro Typ, soviel wurde zur<EFBFBD>ckgegeben
+        // Service, Tür offen:
+        uint16_t ServCoinsInserted[16];		// nur für Wechsler, soviel wurde eingeworfen
+        uint16_t ServCoinsReturned[6];		// nur für Wechsler, Anzahl Münzen pro Typ, soviel wurde zurückgegeben
         uint16_t resint3;
         uint16_t resint4;
-        uint16_t currentTubeContent[6];		//  nur f<EFBFBD>r Wechsler, aktueller F<EFBFBD>llstand
+        uint16_t currentTubeContent[6];		//  nur für Wechsler, aktueller Füllstand
         uint16_t resint5;
         uint16_t resint6;
 // 56
@@ -265,6 +265,7 @@ class hwinf
 
 public:
     enum class DownloadResult {OK, ERROR, TIMEOUT, NOP};
+    enum class FileTypeJson {CONFIG=1, DEVICE, CASH, SERIAL, TIME, PRINTER};
 
     virtual ~hwinf() {}
                
@@ -305,6 +306,17 @@ public:
                              QString comPort) const = 0;
         // download binary file down into device controller
 
+    virtual bool dc_updatePrinterTemplate(enum FileTypeJson type,
+                                          QVector<int> templateIdx,
+                                          QVector<QString> fnames,
+                                          QString br,
+                                          QString serial) const = 0;
+
+    virtual bool dc_printTemplate(enum FileTypeJson type,
+                                  QVector<int> templateIdx,
+                                  QString br,
+                                  QString serial) const = 0;
+
     virtual void dc_autoRequest(bool on)  const =0;
         // on = true:  select that all READ-Requests are sent automatically 
         // on = false: select that all READ-Requests are sent manually one by one
@@ -320,7 +332,7 @@ public:
         // get data back in "payLoad", max 64 byte, can be used for diagnosis
         // retval = nr of bytes received. If host buffer too small then
         // only plBufSiz bytes are copied to "payLoad"
-        // plBufSiz<EFBFBD>z=size of host buffer
+        // plBufSiz­z=size of host buffer
                             
     virtual void dc_requTestResponse()  const =0;
         // tell DC2 to send a test-string, useful to see if cable and baudrate is OK
@@ -441,10 +453,10 @@ public:
 
     // Analog values:
     virtual uint32_t dc_getTemperature(void)  const =0;       
-        // in Sax-Format 0...400 (0=-50,0<EFBFBD>C    100=0,0<EFBFBD>C    141=20,5<EFBFBD>C    400=150,0<EFBFBD>C)
+        // in Sax-Format 0...400 (0=-50,0°C    100=0,0°C    141=20,5°C    400=150,0°C)
     
     virtual QString  dc_getTemperaturStr(void)  const =0;
-        // as string like "-12,5<EFBFBD>C"
+        // as string like "-12,5°C"
         
     virtual uint32_t dc_getVoltage(void)  const =0;           
         // as value in mV,  0...65,535V
@@ -599,7 +611,7 @@ public:
                             uint8_t kindOfModem,        uint8_t kindOfCredit        ) const =0;
         // enable hardware in device controller:
         // kindOfPrinter:       0:off 1: GPT4672 (only this one implemented)
-        // kindOfCoinChecker:   0:off 1:EMP820 2:EMP900 3: C<EFBFBD>_changer
+        // kindOfCoinChecker:   0:off 1:EMP820 2:EMP900 3: C²_changer
         // kindOfMifareReader:  0:off 1: SL025   (only this one implemented)
         // suppressSleep:       0:sleep allowed 1: sleep surpressed for special reason
         // kindOfModem:         0:off 1: ATB_Sunlink_LTE        (not yet implemented)
@@ -705,7 +717,7 @@ public:
         // send 5 byte: byte 0,1: speed  5...250 mm/s
         //              byte2: density   0....(25)....50
         //              byte3: alignment    'l', 'c', 'r' = left, center, right
-        //              byte4: orientation  0, 90, 180    = 0°, 90°, 180° rotation (by now not supported!)
+        //              byte4: orientation  0, 90, 180    = 0°, 90°, 180° rotation (by now not supported!)
         // not batched! don't use twice within 100ms
 
     virtual void prn_movePaper(uint8_t wayInMm, uint8_t direction) const =0;
@@ -1273,7 +1285,7 @@ public:
 
 
     // Komplett-schreib Funktion, noch nicht getestet
-    // Nachteil: keine R<EFBFBD>ckmeldung wie lang's noch dauert
+    // Nachteil: keine Rückmeldung wie lang's noch dauert
     //virtual void bl_startSending(void) const=0;
         // call once after BL is working and file is loaded
     //virtual void bl_sendFile(void) const=0;
@@ -1299,7 +1311,7 @@ public:
     buf[4]=GlobTime.Month;
     buf[5]=GlobTime.Day;
     buf[6]=GlobTime.DOW;
-    buf[7]=' ';                   // immer auf 32bit auff<EFBFBD>llen sonst Speicherproblem beim Master!
+    buf[7]=' ';                   // immer auf 32bit auffüllen sonst Speicherproblem beim Master!
     uitmp=GlobTime.MinOfDay;
     buf[8]=swl_getOneByteFromUint(uitmp, 0);
     buf[9]=swl_getOneByteFromUint(uitmp, 1);

src/controlBus.cpp

@@ -1,422 +1,310 @@
 #include <stdint.h>
+#include <algorithm>
+
 #include <QString>
 #include <QDebug>
 #include "tslib.h"
-//#include "controlBus.h"
+#include "shared_mem_buffer.h"
 
 // ///////////////////////////////////////////////////////////////////////////////////
 //          control serial interface   gui <--> serial
 // ///////////////////////////////////////////////////////////////////////////////////
+void epi_setSerial(int BaudNr,
+                   QString BaudStr,
+                   QString ComName,
+                   uint8_t connect) {
+    memset(&SharedMemBuffer::getData()->rs.comportName[0], 0x00,
+           sizeof(SharedMemBuffer::getData()->rs.comportName));
+    strncpy(SharedMemBuffer::getData()->rs.comportName,
+            ComName.toStdString().c_str(),
+            sizeof(SharedMemBuffer::getData()->rs.comportName)-1);
 
-static QString    rs_comportName;   // z.B. "COM48"
-static QString    rs_baudStr;       // z.B. "19200"
-static int        rs_baudNr;        //0...5 oder -1
-static uint8_t    rs_connect;       // 0,1
+    memset(&SharedMemBuffer::getData()->rs.baudStr[0], 0x00,
+           sizeof(SharedMemBuffer::getData()->rs.baudStr));
+    strncpy(SharedMemBuffer::getData()->rs.baudStr,
+            BaudStr.toStdString().c_str(),
+            sizeof(SharedMemBuffer::getData()->rs.baudStr)-1);
 
-void epi_setSerial(int BaudNr, QString BaudStr, QString ComName, uint8_t connect)
-{
-//    qDebug() << "ENTER" << BaudNr << BaudStr << ComName << connect;
-
-    rs_comportName = ComName;
-    rs_baudStr     = BaudStr;
-    rs_baudNr      = BaudNr;    // 0=1200  1=9600  2=19200  3=38400  4=57600  5=115200  oder -1
-    rs_connect     = connect;     // 0/1
-
-//    qDebug() << "LEAVE" << rs_baudNr << rs_baudStr << rs_comportName << rs_connect;
+    SharedMemBuffer::getData()->rs.baudNr = BaudNr;
+    SharedMemBuffer::getData()->rs.connect = connect;
 }
 
-void epi_closeSerial(void)
-{
-    rs_connect=0;
-//    qDebug() << "ENTER/LEAVE rc_connect=0";
+void epi_closeSerial(void) {
+    SharedMemBuffer::getData()->rs.connect = 0;
 }
 
-
-void gpi_serialChanged(void)
-{
+void gpi_serialChanged(void) {
     // serial confirms that port was closed or opened
-    rs_connect=2;   // Flanke, nur 1x öffnen/schließen
-    //qDebug() << "ENTER/LEAVE rc_connect=2";
+    // rs_connect=2;   // Flanke, nur 1x öffnen/schließen
+    SharedMemBuffer::getData()->rs.connect = 2;
 }
 
-uint8_t gpi_getSerialConn(void)
-{
-    return rs_connect;
+uint8_t gpi_getSerialConn(void) {
+    return SharedMemBuffer::getDataConst()->rs.connect;
 }
 
-
-int gpi_getBaudNr(void)
-{
-    return rs_baudNr;
+int gpi_getBaudNr(void) {
+    return SharedMemBuffer::getDataConst()->rs.baudNr;
 }
 
-QString gpi_getComPortName(void)
-{
-    return rs_comportName;
+QString gpi_getComPortName(void) {
+    return SharedMemBuffer::getDataConst()->rs.comportName;
 }
 
-static bool rs_portIsOpen;
-
-void gpi_serialIsOpen(bool offen)
-{
-    //qDebug() << "ENTER/LEAVE offen=" << offen;
-    rs_portIsOpen=offen;
+void gpi_serialIsOpen(bool offen) {
+    SharedMemBuffer::getData()->rs.portIsOpen = offen;
 }
 
-bool epi_isSerialPortOpen()
-{
+bool epi_isSerialPortOpen() {
     // true: port is open   false: port is closed
-    //qDebug() << "ENTER/LEAVE offen=" << rs_portIsOpen;
-    return rs_portIsOpen;
+    return SharedMemBuffer::getDataConst()->rs.portIsOpen;
 }
 
 // ///////////////////////////////////////////////////////////////////////////////////
 //          Control transfer   gui <--> serial
 // ///////////////////////////////////////////////////////////////////////////////////
 
-
-static char       AutoEmissionOn;     // 1: zyklisch Anfragen zum Slave senden
-
-void epi_startEmmision(char start)
-{
-    AutoEmissionOn=start;
+void epi_startEmmision(char start) {
+    SharedMemBuffer::getData()->AutoEmissionOn = start;
 }
 
-bool gpi_isEmmisionOn(void)
-{
-    return AutoEmissionOn;
+bool gpi_isEmmisionOn(void) {
+    return SharedMemBuffer::getDataConst()->AutoEmissionOn;
 }
 
-//-----------------------------------------------------
-
-static uint16_t datif_sendingPeriod;
-static bool     datif_sendingPer_changed;
-
-uint16_t gpi_getPeriodicSendTimeVal()
-{
-    datif_sendingPer_changed=0;
-    if (datif_sendingPeriod<3 || datif_sendingPeriod>10000)
+uint16_t gpi_getPeriodicSendTimeVal() {
+    SharedMemBuffer::getData()->datif.sendingPer_changed = 0;
+    if ((SharedMemBuffer::getDataConst()->datif.sendingPeriod < 3) ||
+        (SharedMemBuffer::getDataConst()->datif.sendingPeriod > 10000)) {
         return 130;         // ms, default
-    else
-        return datif_sendingPeriod;
+    }
+    return SharedMemBuffer::getDataConst()->datif.sendingPeriod;
 }
 
-void epi_setPeriodicSendTimeVal(uint16_t val)
-{
-    if (val>=3 && val<10000)
-    {
-        datif_sendingPer_changed=1;
-        datif_sendingPeriod=val;
+void epi_setPeriodicSendTimeVal(uint16_t val) {
+    if (val>=3 && val<10000) {
+        SharedMemBuffer::getData()->datif.sendingPer_changed = 1;
+        SharedMemBuffer::getData()->datif.sendingPeriod = val;
     }
 }
 
-bool gpi_PeriodicSendTimeHasChanged()
-{
-    return datif_sendingPer_changed;
+bool gpi_PeriodicSendTimeHasChanged() {
+    return SharedMemBuffer::getDataConst()->datif.sendingPer_changed;
 }
 
-//-----------------------------------------------------
-
-
-//-----------------------------------------------------
-
 // ///////////////////////////////////////////////////////////////////////////////////
 //          Status Display    gui <--> serial
 // ///////////////////////////////////////////////////////////////////////////////////
 
-
 // linke Spalte, über Connect Button
-static QString txt4comStateLine;
-
-QString epi_getTxt4comStateLine(void)
-{
+QString epi_getTxt4comStateLine(void) {
     // GUI: get Text for serial Comport-State Line
-    return txt4comStateLine;
+    return SharedMemBuffer::getDataConst()->txt4.comStateLine;
 }
 
-void gpi_setTxt4comStateLine(QString txtline)     // gpi
-{
+void gpi_setTxt4comStateLine(QString txtline) {
     // serial: write Text to be displayed in serial Comport-State line (like "connected")
-    txt4comStateLine.clear();
-    if (txtline=="")
-        txt4comStateLine.clear();
-    else
-        txt4comStateLine=txtline;
+    memset(SharedMemBuffer::getData()->txt4.comStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.comStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.comStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.comStateLine)-1);
 }
 
-void epi_clrTxt4comStateLine()
-{
-    txt4comStateLine.clear();
+void epi_clrTxt4comStateLine() {
+    memset(SharedMemBuffer::getData()->txt4.comStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.comStateLine));
 }
 
-
-//---------------------------------------------------------------------------------------------
-
 // rechte Spalte, oberste Statuszeile
 // I) "Handshakes" (serial Control)   flow.cpp
 // geht überhaupt was raus? kommt überhaupt was zurück?
-static QString txt4HsStateLine;
-
-QString epi_getTxt4HsStateLine(void)
-{
-    return txt4HsStateLine;
+QString epi_getTxt4HsStateLine(void) {
+    return SharedMemBuffer::getDataConst()->txt4.HsStateLine;
 }
 
-void gpi_setTxt4HsStateLine(QString txtline)
-{
-    txt4HsStateLine.clear();
-    if (txtline=="")
-        txt4HsStateLine.clear();
-    else
-        txt4HsStateLine=txtline;
+void gpi_setTxt4HsStateLine(QString txtline) {
+    // serial: write Text to be displayed in serial Comport-State line (like "connected")
+    memset(SharedMemBuffer::getData()->txt4.HsStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.HsStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.HsStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.HsStateLine)-1);
 }
 
-void epi_clrTxt4HsStateLine()
-{
-    txt4HsStateLine.clear();
+void epi_clrTxt4HsStateLine() {
+    memset(SharedMemBuffer::getData()->txt4.HsStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.HsStateLine));
 }
 
-
-
-//---------------------------------------------------------------------------------------------
-
 // II) Master receive state (empfangenes Telgramm OK? crc? length?  )
 // Statuszeile Auswertung der SlaveResponse (serial Frame, CRC usw)  (prot.cpp)
-static QString txt4masterStateLine;
-
-QString epi_getTxt4masterStateLine(void)
-{
-    return txt4masterStateLine;
+QString epi_getTxt4masterStateLine(void) {
+    return SharedMemBuffer::getDataConst()->txt4.masterStateLine;
 }
 
-void gpi_setTxt4masterStateLine(QString txtline)
-{
-    txt4masterStateLine.clear();
-    if (txtline=="")
-        txt4masterStateLine.clear();
-    else
-        txt4masterStateLine=txtline;
+void gpi_setTxt4masterStateLine(QString txtline) {
+    memset(SharedMemBuffer::getData()->txt4.masterStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.masterStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.masterStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.masterStateLine)-1);
 }
 
-void epi_clrTxt4masterStateLine()
-{
-    txt4masterStateLine.clear();
+void epi_clrTxt4masterStateLine() {
+    memset(SharedMemBuffer::getData()->txt4.masterStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.masterStateLine));
 }
 
-
-
 //---------------------------------------------------------------------------------------------
 
 // III   Slave receive (from Master) OK? if then show results, if not then show errors
 // entweder Empfangsfehler anzeigen (crc? length?) oder result OUT-OK, OUT_ERR, IN_OK, IN_ERR
 // Hintergrund: wenn der Slave Fehler im Master-Telegramm gefunden hat, dann kann er es auch
 // nicht verwenden und nichts ausgeben oder einlesen
-
-static QString txt4resultStateLine;
-
-QString epi_getTxt4resultStateLine(void)
-{
-    return txt4resultStateLine;
+QString epi_getTxt4resultStateLine(void) {
+    return SharedMemBuffer::getDataConst()->txt4.resultStateLine;
 }
 
-void gpi_setTxt4resultStateLine(QString txtline)
-{
-    txt4resultStateLine.clear();
-    if (txtline=="")
-        txt4resultStateLine.clear();
-    else
-        txt4resultStateLine=txtline;
+void gpi_setTxt4resultStateLine(QString txtline) {
+    memset(SharedMemBuffer::getData()->txt4.resultStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.resultStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.resultStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.resultStateLine)-1);
 }
 
-void epi_clrTxt4resultStateLine()
-{
-    txt4resultStateLine.clear();
+void epi_clrTxt4resultStateLine() {
+    memset(SharedMemBuffer::getData()->txt4.resultStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.resultStateLine));
 }
 
-
 //---------------------------------------------------------------------------------------------
-
 // IV  Statuszeile Empfangsdaten
-static QString txt4dataLine;
-
-QString epi_getTxt4dataStateLine(void)
-{
+QString epi_getTxt4dataStateLine(void) {
     // GUI: get Text for serial Comport-State Line
-    return txt4dataLine;
-
+    return SharedMemBuffer::getDataConst()->txt4.dataLine;
 }
 
-void gpi_setTxt4dataStateLine(QString txtline)
-{
+void gpi_setTxt4dataStateLine(QString txtline) {
     // serial: write Text to be displayed in serial Comport-State line (like "connected")
-    txt4dataLine.clear();
-    if (txtline=="")
-        txt4dataLine.clear();
-    else
-        txt4dataLine=txtline;
+    memset(SharedMemBuffer::getData()->txt4.dataLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.dataLine));
+    memcpy(SharedMemBuffer::getData()->txt4.dataLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.dataLine)-1);
 }
 
-void epi_clrTxt4dataStateLine()
-{
-    txt4dataLine.clear();
+void epi_clrTxt4dataStateLine() {
+    memset(SharedMemBuffer::getData()->txt4.dataLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.dataLine));
 }
 
 //---------------------------------------------------------------------------------------------
 
 // 5. Zeile: Datif Ergebnis, Daten brauchbar?
-
-static QString txt4datifReceive;
-
-QString epi_getTxt4datifLine(void)
-{
-
-    return txt4datifReceive;
-
+QString epi_getTxt4datifLine(void) {
+    return SharedMemBuffer::getDataConst()->txt4.datifReceive;
 }
 
-void gpi_setTxt4datifLine(QString txtline)
-{
-
-    txt4datifReceive.clear();
-    if (txtline=="")
-        txt4datifReceive.clear();
-    else
-        txt4datifReceive=txtline;
+void gpi_setTxt4datifLine(QString txtline) {
+    memset(SharedMemBuffer::getData()->txt4.datifReceive,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.datifReceive));
+    memcpy(SharedMemBuffer::getData()->txt4.datifReceive,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.datifReceive)-1);
 }
 
-void epi_clrTxt4datifLine()
-{
-    txt4datifReceive.clear();
+void epi_clrTxt4datifLine() {
+    memset(SharedMemBuffer::getData()->txt4.datifReceive,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.datifReceive));
 }
 
-//---------------------------------------------------------------------------------------------
-//---------------------------------------------------------------------------------------------
-
-static QString txt4diagWindow;
-
-QString epi_getTxt4RsDiagWin(void)
-{
-    return txt4diagWindow;
-
+QString epi_getTxt4RsDiagWin(void) {
+    return SharedMemBuffer::getDataConst()->txt4.diagWindow;
 }
 
-void gpi_setTxt4RsDiagWin(QString txtline)
-{
-    txt4diagWindow.clear();
-    if (txtline=="")
-        txt4diagWindow.clear();
-    else
-        txt4diagWindow=txtline;
+void gpi_setTxt4RsDiagWin(QString txtline) {
+    memset(SharedMemBuffer::getData()->txt4.diagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.diagWindow));
+    memcpy(SharedMemBuffer::getData()->txt4.diagWindow,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.diagWindow)-1);
 }
 
-void epi_clrTxt4RsDiagWin()
-{
-    txt4diagWindow.clear();
+void epi_clrTxt4RsDiagWin() {
+    memset(SharedMemBuffer::getData()->txt4.diagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.diagWindow));
 }
 
-//---------------------------------------------------------------------------------------------
-
-static QString sndTxt4diagWindow;
-
-QString epi_get2ndTxt4RsDiagWin(void)
-{
-    return sndTxt4diagWindow;
-
+QString epi_get2ndTxt4RsDiagWin(void) {
+    return SharedMemBuffer::getDataConst()->txt4.sndDiagWindow;
 }
 
-void gpi_set2ndTxt4RsDiagWin(QString txtline)
-{
-    sndTxt4diagWindow.clear();
-    if (txtline=="")
-        sndTxt4diagWindow.clear();
-    else
-        sndTxt4diagWindow=txtline;
+void gpi_set2ndTxt4RsDiagWin(QString txtline) {
+    memset(SharedMemBuffer::getData()->txt4.sndDiagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.sndDiagWindow));
+    memcpy(SharedMemBuffer::getData()->txt4.sndDiagWindow,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.sndDiagWindow)-1);
 }
 
-void epi_clr2ndTxt4RsDiagWin()
-{
-    sndTxt4diagWindow.clear();
+void epi_clr2ndTxt4RsDiagWin() {
+    memset(SharedMemBuffer::getData()->txt4.sndDiagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.sndDiagWindow));
 }
 
 // ///////////////////////////////////////////////////////////////////////////////////
 //          Memory for Slave responses, common data
 // ///////////////////////////////////////////////////////////////////////////////////
-
-
-static bool Sdata_serialTestResult;
-
-void gpi_storeResult_serialTestOK(bool wasOk)
-{
-    Sdata_serialTestResult=wasOk;
+void gpi_storeResult_serialTestOK(bool wasOk) {
+    SharedMemBuffer::getData()->Sdata.serialTestResult = wasOk;
 }
 
-bool epi_getResult_serialTestOK()
-{
+bool epi_getResult_serialTestOK() {
     // retval: true: test was successful, got right response
-    return Sdata_serialTestResult;
+    return SharedMemBuffer::getDataConst()->Sdata.serialTestResult;
 }
 
-
-
 // ///////////////////////////////////////////////////////////////////////////////////
 //          Store received data for hwapi
 // ///////////////////////////////////////////////////////////////////////////////////
-
-
-
-static uint8_t Sdata_pProtResultOk;
-
-void gpi_startNewRequest()
-{
-    Sdata_pProtResultOk=0;
+void gpi_startNewRequest() {
+    SharedMemBuffer::getData()->Sdata.pProtResultOk = 0;
 }
 
-void gpi_storeResultOfLastRequest(bool answisok)
-{
-    if (answisok)
-        Sdata_pProtResultOk=1;
-    else
-        Sdata_pProtResultOk=2;
+void gpi_storeResultOfLastRequest(bool answisok) {
+    SharedMemBuffer::getData()->Sdata.pProtResultOk = answisok ? 1 : 2;
 }
 
-uint8_t epi_getResultOfLastRequest()
-{
+uint8_t epi_getResultOfLastRequest() {
     // retval: 0: in progress  1: OK  2: error
-    return Sdata_pProtResultOk;
+    return SharedMemBuffer::getDataConst()->Sdata.pProtResultOk;
 }
 
-
-
-
-static uint16_t Sdata_receivedDataLength;
-static uint8_t Sdata_receivedDataBlock[64];
-
-void gpi_storeRecPayLoad(uint8_t RdDlen, uint8_t *receivedData)
-{
-    Sdata_receivedDataLength=uint16_t(RdDlen);
-    if (Sdata_receivedDataLength>64)
-        Sdata_receivedDataLength=64;
-    tslib_strclr(Sdata_receivedDataBlock,0,64);
-    tslib_strcpy(receivedData, Sdata_receivedDataBlock, Sdata_receivedDataLength);
-
+void gpi_storeRecPayLoad(uint8_t RdDlen, uint8_t const *receivedData) {
+    SharedMemBuffer::getData()->Sdata.receivedDataLength
+        = std::min(RdDlen, (uint8_t)(64));
+    memset((char *)(&SharedMemBuffer::getData()->Sdata.receivedDataBlock[0]),
+           0x00, sizeof(SharedMemBuffer::getData()->Sdata.receivedDataBlock));
+    strncpy((char *)(&SharedMemBuffer::getData()->Sdata.receivedDataBlock[0]),
+            (char const *)receivedData,
+            sizeof(SharedMemBuffer::getData()->Sdata.receivedDataBlock)-1);
 }
 
-uint16_t epi_getLastPayLoad(uint16_t plBufSiz, uint8_t *payLoad)
-{
+uint16_t epi_getLastPayLoad(uint16_t plBufSiz, uint8_t *payLoad) {
     // get data back in *pl, max 64 byte
     // retval = nr of bytes received. If host buffer too small then
     // only plBufSíz bytes are copied to pl
     // plBufSíz=size of host buffer
 
-    uint16_t ml=plBufSiz;
-    if (ml>64) ml=64;
-    if (Sdata_receivedDataLength<ml)
-        ml=Sdata_receivedDataLength;
-    tslib_strcpy(Sdata_receivedDataBlock, payLoad, ml);
-    return Sdata_receivedDataLength;
+    uint16_t ml = std::min(plBufSiz, (uint16_t)(64));
+    if (SharedMemBuffer::getDataConst()->Sdata.receivedDataLength < ml) {
+        ml = SharedMemBuffer::getDataConst()->Sdata.receivedDataLength;
+    }
+    strncpy((char *)payLoad,
+            (char const *)(&SharedMemBuffer::getData()->Sdata.receivedDataBlock[0]),
+            ml);
+
+    return SharedMemBuffer::getDataConst()->Sdata.receivedDataLength;
 }
-
-
-
-
-

src/hwapi.cpp

@@ -10,6 +10,9 @@
 #include <stdint.h>
 #include <unistd.h>
 #include <thread>
+#include <algorithm>
+
+#include <QFileInfo>
 
 #include "tslib.h"
 #include "hwapi.h"
@@ -18,29 +21,65 @@
 #include "controlBus.h"
 #include "storeINdata.h"
 #include "dcBL.h"
+#include "shared_mem_buffer.h"
 #include <QDebug>
-#include <../plugins/interfaces.h>
+#include <QSharedMemory>
 
+#include "interfaces.h"
+
+static uint32_t hwapi_lastStartAmount;
 
 static const QMap<QString, int> baudrateMap = {
   {"1200"   ,   0}, {"9600"   ,   1}, {"19200"  ,   2}, {"38400"  ,   3},
   {"57600"  ,   4}, {"115200" ,   5}
 };
 
-hwapi::hwapi(QWidget *parent) : QObject(parent)
-{
-    // constructor
-    //epi_resetAllDOs();
-    //PI_INI();
+hwapi::hwapi(QWidget *parent) : QObject(parent) {
+    // create or attach shared memory segment
+    // !!! The compoment creating the shared memory MUST be ATBQT !!!
+    m_sharedMem = SharedMemBuffer::getShm(sizeof(SharedMemBuffer));
+    if (m_sharedMem) {
+        if (m_sharedMem->isAttached()) {
+            qInfo() << "Shared memory ("
+                    << sizeof(SharedMemBuffer) << "bytes) created and attached";
+        }
+    } else {
+        qCritical() << "Creating/attaching shared memory failed";
+    }
     sendWRcmd_INI();
-
     myDatif = new T_datif();
+
+    connect(myDatif, SIGNAL(datif_templatePrintFinished_OK()), this, SLOT(hwapi_slotPrintFinished_OK()));
+    connect(myDatif, SIGNAL(datif_templatePrintFinished_Err()), this, SLOT(hwapi_slotPrintFinished_Err()));
+    connect(myDatif, SIGNAL(datif_gotNewCoin()), this, SLOT(hwapi_slotGotCoin()));
 }
 
+hwapi::~hwapi() {
+    if (m_sharedMem && m_sharedMem->isAttached()) {
+        m_sharedMem->detach();
+    }
+}
 
+void hwapi::hwapi_slotPrintFinished_OK(void) {
+    emit hwapi_templatePrintFinished_OK();
+}
 
-void hwapi::sub_storeSendingText(QByteArray *buf) const
-{
+void hwapi::hwapi_slotPrintFinished_Err(void) {
+    emit hwapi_templatePrintFinished_Err();
+}
+
+void hwapi::hwapi_slotGotCoin(void) {
+    // new coin was inserted while transaction and new amount reported:
+    emit hwapi_gotNewCoin();
+
+    uint32_t newSum=epi_CurrentPaymentGetAmount();
+
+    if (newSum>=hwapi_lastStartAmount)
+        emit hwapi_vendStopByMax();
+
+}
+
+void hwapi::sub_storeSendingText(QByteArray *buf) const {
 
     char local[70], copie[1350];    // 64byte more then max buffer size!
     int LL, nn, len, maxruns=20;
@@ -130,6 +169,22 @@ bool hwapi::dc_openSerial(int BaudNr, QString BaudStr,
     return false;
 }
 
+QStringList hwapi::dc_getStatus() const {
+    QStringList status;
+
+    if (m_sharedMem) {
+        SharedMemBuffer const *shMem = SharedMemBuffer::getDataConst();
+        status += QString("comport  : %1").arg(shMem->rs.comportName);
+        status += QString("baudrate : %1").arg(shMem->rs.baudNr);
+        status += QString("baudNr   : %1").arg(shMem->rs.baudStr);
+        status += QString("connect  : %1").arg(shMem->rs.connect);
+        status += QString("port open: %1").arg(shMem->rs.portIsOpen);
+        // to be continued
+    }
+
+    return status;
+}
+
 bool hwapi::dc_closeSerial(void) const {
     epi_closeSerial();
     for (int i = 0; i < 10; ++i) {
@@ -404,6 +459,135 @@ bool hwapi::dc_updateDC(QString bFile, QString br, QString serial) const {
     return true;
 }
 
+/******************************************************************************/
+//
+//                   LEVEL 3: hwapi::dc_updatePrinterTemplate
+//
+/******************************************************************************/
+bool hwapi::dc_updatePrinterTemplate(enum FileTypeJson type,
+                                     QVector<int> templatesIdx,
+                                     QVector<QString> fnames,
+                                     QString br,
+                                     QString serial) const {
+    // sanity checks
+    if (!baudrateMap.contains(br)) {
+        qCritical() << "passed wrong baudrate" << br;
+        return false;
+    }
+    if (templatesIdx.size() != fnames.size()) {
+        qCritical() << "list sizes must be equal" << br;
+        return false;
+    }
+    if (!std::all_of(templatesIdx.cbegin(), templatesIdx.cend(),
+                    [](int i) { return i >= 1 && i <= 32; })) {
+        qCritical() << "wrong template indices";
+        return false;
+    }
+    if (type != FileTypeJson::PRINTER) {
+        qCritical() << "wrong file type" << (uint8_t)type;
+        return false;
+    }
+
+    qDebug() << "updating: " << fnames << br << serial << "...";
+
+    if (!serial.isNull()) {
+        if (!openSerial(baudrateMap.value(br), br, serial)) {
+            return false;
+        }
+    }
+
+    int nTry = 50;
+    while (!sys_ready4sending()) { // wait max. 5 seconds
+        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+        if (--nTry <= 0) {
+            qCritical() << "sys not ready for sending";
+            if (!serial.isNull()) {
+                closeSerial(serial);
+            }
+            return false;
+        }
+    }
+
+    bool ret = true;
+    for (int i = 0; i < fnames.size(); ++i) {
+        QFile file(fnames[i]);
+        if (file.exists() && file.open(QIODevice::ReadOnly)) {
+            QByteArray ba = file.readAll();
+            if (ba.size() <= 800) { // max. size is 800 bytes
+                if (sys_sendJsonFileToDc((uint8_t)(type),
+                                          templatesIdx[i],
+                                          (uint8_t *)ba.data())) {
+                    std::this_thread::sleep_for(std::chrono::seconds(1));
+                    qInfo() << "sent file" << fnames[i] << "to dc";
+                }
+            }
+        } else {
+            qCritical() << fnames[i] << "!!! does not exist!!!";
+            ret = false;
+            continue;
+        }
+    }
+    if (!serial.isNull()) {
+        closeSerial(serial);
+    }
+    return ret;
+}
+
+bool hwapi::dc_printTemplate(enum FileTypeJson type,
+                             QVector<int> templateIdx,
+                             QString br,
+                             QString serial) const {
+    // sanity checks
+    if (!baudrateMap.contains(br)) {
+        qCritical() << "passed wrong baudrate" << br;
+        return false;
+    }
+    if (!std::all_of(templateIdx.cbegin(), templateIdx.cend(),
+                    [](int i) { return i >= 1 && i <= 32; })) {
+        qCritical() << "wrong template indices";
+        return false;
+    }
+    if (type != FileTypeJson::PRINTER) {
+        qCritical() << "wrong file type" << (uint8_t)type;
+        return false;
+    }
+
+    qDebug() << "printing: " << templateIdx << br << serial << "...";
+
+    if (!serial.isNull()) {
+        if (!openSerial(baudrateMap.value(br), br, serial)) {
+            return false;
+        }
+    }
+
+    int nTry = 50;
+    while (!sys_ready4sending()) { // wait max. 5 seconds
+        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+        if (--nTry <= 0) {
+            qCritical() << "sys not ready for sending";
+            if (!serial.isNull()) {
+                closeSerial(serial);
+            }
+            return false;
+        }
+    }
+
+    bool ret = true;
+    for (int i = 0; i < templateIdx.size(); ++i) {
+        if (prn_printTemplate(templateIdx[i])) {
+            qDebug() << "printing template" << templateIdx[i];
+            std::this_thread::sleep_for(std::chrono::seconds(3));
+        } else {
+            ret = false;
+            continue;
+        }
+    }
+    if (!serial.isNull()) {
+        closeSerial(serial);
+    }
+    return ret;
+
+}
 
 // ------------------------------------------------------------------------------
 // Level 1, control device-controller (functions of µC)
@@ -607,13 +791,16 @@ QString hwapi::rtc_getTimStr() const
 {
     uint8_t hh,  mm,  ss, buf[20], nn;
     QString qbuf;
-
+    char ctmp;
     qbuf.clear();
     for (nn=0; nn<20; nn++) buf[nn]=0;
     epi_getTime(&hh, &mm, &ss);
     GetTimeString(hh, mm, ss, HourSys24h, MITSEK, buf); // about 12byte long
-    for (nn=0; nn<20; nn++) qbuf[nn]=buf[nn];
-
+    for (nn=0; nn<20; nn++)
+    {
+        ctmp=buf[nn];
+        qbuf[nn]=ctmp;
+    }
     return qbuf;
 }
 
@@ -621,14 +808,17 @@ QString hwapi::rtc_getDatStr() const
 {
     uint8_t day,  month,  year, buf[20], nn;
     QString qbuf;
+    char ctmp;
 
     qbuf.clear();
     for (nn=0; nn<20; nn++) buf[nn]=0;
     epi_getDate(&year, &month, &day);
     GetDateString(day, month, 0x20, year, DateFormatDeutsch, 0, buf);
     for (nn=0; nn<20; nn++)
-        qbuf[nn]=buf[nn];
-
+    {
+        ctmp=  buf[nn];
+        qbuf[nn]=ctmp;
+    }
     return qbuf;
 }
 
@@ -1582,8 +1772,7 @@ void hwapi::readback_machineIDdata(uint8_t *length, uint8_t *data) const
 static uint16_t hwapi_shutterTime;
 
 // locks, 2.Level: (Motor stops automatical on end switch or by 5s timeout)
-uint8_t hwapi::lock_openUpperDoor(void) const
-{
+uint8_t hwapi::lock_openUpperDoor(void) const {
     //bool sendWRcmd_setSendCommand4(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4);
         // commands are defined in PIdefines.h
     sendWRcmd_setSendCommand4(SENDDIRCMD_OPENUP_DOOR, 1, 0, 0, 0);
@@ -1611,54 +1800,39 @@ uint8_t hwapi::lock_closeLowerDoor(void) const
     return 0;
 }
 
-void hwapi::shut_openOnce(void) const
-{
+void hwapi::shut_openOnce(void) const {
     // and close automatic after shutter time
-    uint16_t zeit=hwapi_shutterTime;
-    zeit/=100;
+    uint16_t zeit = (SharedMemBuffer::getDataConst()->hwapi.shutterTime) / 100;
     sendWRcmd_setSendCommand4(SENDDIRCMD_SHUTOPENBYTIME, uint8_t(zeit) ,0,0,0);
 
 }
 
-void hwapi::shut_openForCoin(bool start) const
-{
+void hwapi::shut_openForCoin(bool start) const {
     // start=true: start opening flap if coin is attached
     // start=false: stop process
-
-    uint16_t zeit=hwapi_shutterTime;
-    zeit/=100;
+    uint16_t zeit = (SharedMemBuffer::getDataConst()->hwapi.shutterTime) / 100;
     sendWRcmd_setSendCommand4(SENDDIRCMD_SHUTOPENBYCOIN, uint8_t(start), uint8_t(zeit),0,0);
 
 }
 
-void hwapi::shut_sendOpeningTime(uint16_t timeIn_ms ) const
-{
+void hwapi::shut_sendOpeningTime(uint16_t timeIn_ms ) const {
     // after this time without retrigger the flap is closed
     //sendWRcmd_setSendCommand4(SENDDIRCMD_SHUT_SENDTIME, timeIn100ms,0,0,0);
-    hwapi_shutterTime=timeIn_ms;
-
+    SharedMemBuffer::getData()->hwapi.shutterTime = timeIn_ms;
 }
 
 
-void hwapi::esc_takeMoney(void) const
-{
+void hwapi::esc_takeMoney(void) const {
     // and close automatically after escrow time (1s)
     sendWRcmd_setSendCommand0(SENDDIRCMD_ESCRO_TAKE);
 }
 
-void hwapi::esc_returnMoney(void) const
-{
+void hwapi::esc_returnMoney(void) const {
     // and close automatically after time
     sendWRcmd_setSendCommand0(SENDDIRCMD_ESCRO_GIVE);
 
 }
 
-
-
-
-
-
-
 // ----------------------------------------------------------------------------------------------------------
 // --------------------------------------------- MIFARE -----------------------------------------------------
 // ----------------------------------------------------------------------------------------------------------
@@ -2089,7 +2263,8 @@ bool hwapi::pri_TD_addText(QByteArray text) const
 
 bool hwapi::pri_TD_addValue(int val) const
 {
-    QString  tmpStr;
+//    QString  tmpStr;
+    QByteArray  tmpStr;
     tmpStr.setNum(val,10);      // up to 12 chars
     if (ticketTemplate.length()>1266)
         return false;
@@ -2939,7 +3114,7 @@ bool hwapi::bl_isUp(void) const
 }
 
 
-void hwapi::bl_sendAddress(u_int16_t blockNumber) const
+void hwapi::bl_sendAddress(uint16_t blockNumber) const
 {
     // send start address, nr of 64byte-block, start with 0
     // will be sent only for folling block-numbers:
@@ -2974,7 +3149,7 @@ void hwapi::bl_openBinary(void) const
     dcBL_loadBinary(0);
 }
 
-void hwapi::bl_sendDataBlock(uint8_t length, u_int8_t *buffer) const
+void hwapi::bl_sendDataBlock(uint8_t length, uint8_t *buffer) const
 {
     // send 64 byte from bin file
     uint8_t LL=length, sendBuf[80], sendLen;
@@ -3005,6 +3180,7 @@ void hwapi::bl_sendLastBlock(void) const
 
     len=dcBL_writeLastPage(buf);
     sendWRcmd_setSendBlock160(len, buf);
+
 }
 
 uint8_t hwapi::bl_wasSendingDataOK(void) const
@@ -3177,6 +3353,60 @@ bool hwapi::rtc_getExtendedTime(uint8_t *leng, uint8_t *data) const
 
 }
 
+bool hwapi::rtc_getExtendedTime(struct T_extTime *exTime) const
+{
+    uint8_t len;
+    uint16_t LL, nn;
+    uint8_t *start;
+    uint8_t  buf[66];
+
+    epi_restoreExtendedTime(&len, buf);
+        // Puffer in struct eintragen:
+    LL=sizeof(struct T_extTime);
+    start = &(exTime->Hours);
+    nn=0;
+    do
+    {
+        *start = buf[nn];
+        start++;
+    } while(++nn<LL);
+
+    return true;
+
+
+/*
+struct T_extTime
+{
+    uint8_t     Hours;
+    uint8_t     Min;
+    uint8_t     Sec;
+    uint8_t     Year;
+    uint8_t     Month;
+    uint8_t     Day;
+    uint8_t     DOW;
+    uint8_t     res1;
+    uint16_t    MinOfDay;
+    uint16_t    res2;
+    uint32_t    SecOfDay;
+    uint8_t     isLeapYear;
+    uint8_t     nxtLeapYear;
+    uint8_t     lastLeapYear;
+    uint8_t     hoursOfThisWeek;
+    uint16_t    minutesOfThisWeek;
+    uint16_t    hoursOfThisMonth;
+    uint16_t    daysOfThisYear;
+    uint16_t    GetHoursOfYear;
+    uint16_t    res3;
+    uint32_t    GetMinutesOfYear;
+    uint8_t     getWakeIntvSec;
+    uint8_t     res4;
+    uint16_t    res5;
+    uint32_t    MinutesOfMillenium;
+};
+*/
+
+}
+
 bool hwapi::sys_runCompleteTest(void) const
 {
     // warning: lasts 20s in one pace
@@ -3188,9 +3418,8 @@ bool hwapi::sys_ready4sending(void) const
     // return true if a Json-file can be sent
 
     // check free memory
-    uint8_t frei=FDLONG_STACKDEPTH - check4FDlongCmd();
+    uint8_t frei=check4freeFDlongCmd();
         // Command-Stack sollte 16 Commands fassen, je 64byte Nutzdaten = 1024byte
-        // in check4FDlongCmd() steht wieviele Plaetze bereits belegt sind
         // frei gibt also die Anzahl freier 64byte Bloecke zurueck
         // das Json-File hat max 800 byte = 13 bloecke
     if (frei<16)        // Puffer muss ganz leer sein! nicht dass was durcheinander kommt
@@ -3225,9 +3454,8 @@ bool hwapi::sys_sendJsonFileToDc(uint8_t kindOfFile, uint8_t nrOfTemplate, uint8
     dateiLang<<=6;  // auf volle 64byte aufgerundet
 
     // check free memory
-    frei=FDLONG_STACKDEPTH - check4FDlongCmd();
+    frei=check4freeFDlongCmd();
         // Command-Stack sollte 16 Commands fassen, je 64byte Nutzdaten = 1024byte
-        // in check4FDlongCmd() steht wieviele Plaetze bereits belegt sind
         // frei gibt also die Anzahl freier 64byte Bloecke zurueck
         // das Json-File hat max 800 byte = 13 bloecke
     if (frei<16)        // Puffer muss ganz leer sein! nicht dass was durcheinander kommt
@@ -3248,7 +3476,8 @@ bool hwapi::sys_sendJsonFileToDc(uint8_t kindOfFile, uint8_t nrOfTemplate, uint8
     {
         biox_CopyBlock(inhaltOfJson, uitmp, temp, 0, 64);
         longFDcmd_set(31,0, bn++, 64, temp);
-        uitmp<<=6;
+        //uitmp<<=6;  // falsch
+        uitmp+=64;
     } while(uitmp < dateiLang);
 
     longFDcmd_set(32, 0,0, 0,temp);       // Abschluss
@@ -3279,11 +3508,12 @@ bool hwapi::prn_printTemplate(uint8_t nrOftemplate) const
     return sendFDcmd_set(152, 0,0, nrOftemplate,0,0,0);
 }
 
-void hwapi::log_getHoldAccountNumbers(uint32_t *accNr ) const
-    // returns all acc nrs of the backuped vault records
-    // use: uint32_t backupedAccNumbers[8]
+void hwapi::log_getHoldAccountNumbers(uint8_t *nrOfVals, uint16_t *accNr ) const
 {
-    Q_UNUSED(accNr);
+    // returns all acc nrs of the backuped vault records
+    // use: uint16_t backupedAccNumbers[8]
+
+    epi_restoreDCbackupAccNr(nrOfVals, accNr);
 }
 
 
@@ -3291,21 +3521,62 @@ void hwapi::log_getHoldAccountNumbers(uint32_t *accNr ) const
 bool hwapi::log_selectVaultRecord(uint16_t accountNr ) const
 {
     // return true if sending, false if cmd-stack is full
-    uint8_t dat1, dat2;
+    // and trigger transfer
 
+    uint8_t dat1, dat2;
+    bool ret;
+
+    uint8_t frei=check4freeFDshortCmd();
+    if (frei<8)
+        return false;
+
+    epi_iniVRstorage();
     dat1=uint2uchar(accountNr, LOWBYTE);
     dat2=uint2uchar(accountNr, HIGHBYTE);
-    return sendFDcmd_set(153, 0,0, dat1,dat2,0,0);
+    ret=sendFDcmd_set(153, 0,0, dat1,dat2,0,0); // select this record
+        // true means "will be sent"
+    sendFDcmd_set(0,38,0, 0,0,0,0);    // return VaultRecord block-Nr.0
+    sendFDcmd_set(0,38,1, 0,0,0,0);    // return VaultRecord block-Nr.1
+    sendFDcmd_set(0,38,2, 0,0,0,0);    // return VaultRecord block-Nr.2
+    sendFDcmd_set(0,38,3, 0,0,0,0);    // return VaultRecord block-Nr.3
+    sendFDcmd_set(0,38,4, 0,0,0,0);    // return VaultRecord block-Nr.4
+    sendFDcmd_set(0,38,5, 0,0,0,0);    // return VaultRecord block-Nr.4
+        // 38: <100 to get long 64byte response
 
+    return ret;
 }
 
+bool hwapi::log_chkIfVaultRecordAvailable(void) const
+{
+    // return true if completly received
+    return epi_checkIfVaultRecordAvailable();
+        return false;
+}
 
-//request, isAvailable
-void hwapi::log_getVaultRecord(struct T_vaultRecord *retVR) const
+bool hwapi::log_getVaultRecord(struct T_vaultRecord *retVR) const
     // which was selected by: log_selectVaultRecord()
     // to be forwarded to Ismas
+    // return true if completly received
 {
-    Q_UNUSED(retVR);
+
+    uint16_t LL, nn, len;
+    char   *start;
+    uint8_t  buf[400];
+    bool ret;
+
+    ret=epi_restoreVaultRecord(&len, buf);   // true if completly received
+    if (ret==false)
+        return false;
+        // Puffer in struct eintragen:
+    LL=sizeof(struct T_vaultRecord);		// =320
+    start = &retVR->startbuffer[0];
+    nn=0;
+    do
+    {
+        *start = buf[nn];
+        start++;
+    } while(++nn<LL);
+    return true;
 }
 
 bool hwapi::prn_printAccountReceipt(void) const
@@ -3320,14 +3591,19 @@ bool hwapi::prn_printTestTicket(void) const
 
 }
 
-bool hwapi::cash_startPayment(uint16_t amount) const
+bool hwapi::cash_startPayment(uint32_t amount) const
 {
-    uint8_t dat1, dat2;
+    // 17.4.23TS: extended to 32bit
+    uint8_t dat1, dat2, dat3, dat4;
 
+    hwapi_lastStartAmount=amount;
     epi_clearCurrentPayment();
-    dat1=uint2uchar(amount, LOWBYTE);
-    dat2=uint2uchar(amount, HIGHBYTE);
-    return sendFDcmd_set(155, 0,0, dat1,dat2,0,0);
+    dat1=ulong2uchar(amount, 0);
+    dat2=ulong2uchar(amount, 1);
+    dat3=ulong2uchar(amount, 2);
+    dat4=ulong2uchar(amount, 3);
+
+    return sendFDcmd_set(155, 0,0, dat1,dat2,dat3,dat4);
 
 }
 
@@ -3361,6 +3637,7 @@ bool hwapi::cash_stopPayment(void) const
 {
     // DB1: 1=encash    2=cancel & return coins
     //      3=stop and keep coins in escrow
+    emit hwapi_vendStopByPushbutton();
     return sendFDcmd_set(156, 0,0, 3,0,0,0);
 
 }
@@ -3383,17 +3660,24 @@ bool hwapi::vend_failed(void) const
 
 }
 
-
-
-
-
-
-uint8_t hwapi::mif_getCardType(QString cardholder) const
+uint8_t hwapi::mif_getCardType(QString *cardholder) const
     // return 1,2,3,4 = upper, lower access card, printer test, coin test
     // cardholder: 7byte Name-String
 {
-    Q_UNUSED(cardholder);
-    return 0; // to satisfy compiler
+    uint8_t type, buf[8], nn;
+    char ctmp;
+
+    memset(buf, 0x00, sizeof(buf));
+
+    type=epi_mifGetCardType(&buf[0]);
+        //holder[8] = name of card holder
+        // retval Type of MifareCard, 1=upper door, 2=lower door 3=test printer 4=test coins
+    for (nn=0;nn<8; nn++) {
+        ctmp=buf[nn];
+        cardholder[nn]=ctmp;
+
+    }
+    return type;
 }
 
 uint64_t hwapi::sys_getWakeSource(void) const
@@ -3402,17 +3686,138 @@ uint64_t hwapi::sys_getWakeSource(void) const
      return epi_getWakeSources();
 }
 
-//void hwapi::sys_getDeviceConditions(struct T_moduleCondition *devCond) const
+
 void hwapi::sys_getDeviceConditions(uint8_t *leng, uint8_t *data) const
 {
     //uint8_t leng, data[66];
     epi_restoreDeviceConditions(leng, data);
 }
 
-//void hwapi::sys_getDynMachineConditions(struct T_dynamicCondition *dynMachCond) const
-void hwapi::sys_getDynMachineConditions(uint8_t *leng, uint8_t *data) const
+void hwapi::sys_getDeviceConditions(struct T_moduleCondition *devCond) const
 {
-    epi_restoreDeviceConditions(leng, data);
+    uint16_t LL, nn;
+    uint8_t *start;
+    uint8_t  buf[70], leng;
+
+    epi_restoreDeviceConditions(&leng, buf);
+
+        // Puffer in struct eintragen:
+    LL=sizeof(struct T_moduleCondition);
+    start = &devCond->ram;
+    nn=0;
+    do
+    {
+        *start = buf[nn];
+        start++;
+    } while(++nn<LL);
+
+}
+
+
+
+
+void hwapi::sys_getDynMachineConditions(uint8_t *leng, uint8_t *data) const
+{
+    epi_restoreDynMachineConditions(leng, data);
+}
+
+void hwapi::sys_getDynMachineConditions(struct T_dynamicCondition *dynMachCond) const
+{
+
+    uint16_t LL, nn;
+    char *start;
+    uint8_t  buf[70], leng;
+
+    epi_restoreDynMachineConditions(&leng, buf);
+        // Puffer in struct eintragen:
+    LL=sizeof(struct T_dynamicCondition);
+    start = &dynMachCond->allDoorsDebounced;
+    nn=0;
+    do
+    {
+        *start = buf[nn];
+        start++;
+    } while(++nn<LL);
+
+}
+
+
+uint32_t hwapi::cash_getAmountInVault(void) const
+{
+    return epi_getCashBoxContent();
+}
+
+uint16_t hwapi::cash_getNrCoinsInVault(void) const
+{
+    return epi_getNrOfCoinsInCashBox();
+}
+
+
+
+uint8_t hwapi::prn_getPrintResult() const
+{
+    // return:  0: unknown
+    //          1: OK - last template was printed succesful
+    //          2: error - last template was not printed
+
+    struct T_dynamicCondition dynMachCon;
+    //uint8_t  buf[70], leng,
+    uint8_t res;
+    static  uint8_t lastState;
+    //uint32_t  aa;
+
+   // aa=&dynMachCon;
+    sys_getDynMachineConditions(&dynMachCon);
+    res= dynMachCon.resultOfLastTemplPrint;
+        // 0: unknown or printing in progress
+        // 1: OK, doc was printed   2: error, doc was not printed
+
+    if (res==0)
+    {
+        if (lastState>0)
+        {
+            // print was started
+            lastState=res;
+        }
+    } else
+    {
+        if (lastState==0)
+        {
+            // result hat sich auf 1 oder 2 geändert, d.h. Druck ist fertig
+            if (res==1)
+            {
+
+                //emit    hwapi_templatePrintFinished_OK();
+            } else
+            if (res==2)
+            {
+
+                //emit    hwapi_templatePrintFinished_Err();
+            }
+                lastState=res;
+        }
+    }
+    return res;
+}
+
+uint8_t hwapi::prn_getCurrentPrinterState() const
+{
+        //        0: printer OK
+        //          bit0: near paper end          bit1: no paper
+        //          bit2: temperature error       bit3: error head open
+        //          bit4: paper jam in cutter
+        //          bit6: no response             bit7: serial rec. error
+        //			bit5: printer not ready
+
+
+    uint8_t     lastPrinterStatus;
+    uint8_t  buf[70], leng;
+
+    // 2nd way to get dyn.conditions:
+    epi_restoreDynMachineConditions(&leng, buf);
+    lastPrinterStatus=buf[53];
+
+    return lastPrinterStatus;
 }
 
 

src/main.cpp

@@ -0,0 +1,9 @@
+#include <QCoreApplication>
+#include "tslib.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+
+    return a.exec();
+}

src/sendWRcmd.cpp

@@ -1,283 +1,157 @@
-#include <stdint.h>
+#include <cstdint>
+#include <algorithm>
+
 #include <QString>
 #include <QDebug>
+
 #include "tslib.h"
 #include "sendWRcmd.h"
-
+#include "shared_mem_buffer.h"
 
 void indat_PrnPwr(void);
 
+/* convention: use simple (not rotating) FIFO Stack:
+Example: nrOfCmdsInQueue=4 then
+    nextAsynchsendCmd0[0]=cmd1      // was stored as first
+    nextAsynchsendCmd0[1]=cmd2
+    nextAsynchsendCmd0[2]=cmd3
+    nextAsynchsendCmd0[3]=cmd4      // came in as last
 
-void sendWRcmd_INI(void)
-{
+    Send: [0] first, then move buffer 1 down:
+    nextAsynchsendCmd0[0]=cmd2
+    nextAsynchsendCmd0[1]=cmd3
+    nextAsynchsendCmd0[2]=cmd4
+    nextAsynchsendCmd0[3]=0;
+    nrOfCmdsInQueue=3 now
+*/
+template <typename T, std::size_t N>
+static void *move_buffer_down_by_one(T (&buffer)[N]) {
+    return memmove(buffer, &buffer[1], sizeof(buffer)-sizeof(buffer[0]));
+}
+template <typename T, std::size_t N>
+static void clear(T (&buffer)[N]) {
+    memset((char *)(&buffer[0]), 0x00, sizeof(buffer));
+}
+template <typename T, std::size_t M, std::size_t N>
+static void clear(T (&buffer)[M][N]) {
+    memset((char *)(&buffer[0][0]), 0x00, sizeof(buffer));
+}
+template <typename T>
+static void sendWRcmd_clearCmdStack(T &cmdStack) {
+    clear(cmdStack.AsynchSend);
+    clear(cmdStack.para1);
+    clear(cmdStack.para2);
+    clear(cmdStack.para3);
+    clear(cmdStack.para4);
+    cmdStack.nrOfCmdsInQueue = 0;
+}
+template <typename T, typename T1, typename T2, typename T3, typename T4>
+static bool sendWRcmd_setSendCmd(T &cmdStack, uint16_t nextCmd, T1 dat1,
+                                 T2 dat2, T3 dat3, T4 dat4) {
+    uint8_t const &n = cmdStack.nrOfCmdsInQueue;
+    int const STACKDEPTH = sizeof(cmdStack.para1);
+    if (n < STACKDEPTH) {
+        cmdStack.AsynchSend[n] = nextCmd;
+        cmdStack.para1[n] = dat1;
+        cmdStack.para2[n] = dat2;
+        cmdStack.para3[n] = dat3;
+        cmdStack.para4[n] = dat4;
+        cmdStack.nrOfCmdsInQueue += 1;
+        return true;                // ok, will be sent
+    }
+    qCritical() << "cannot save cmd because stack is full";
+    return false;           // not possible
+}
+template <typename T, typename T1, typename T2, typename T3, typename T4>
+static bool sendWRcmd_getSendCmd(T &cmdStack, T1 *dat1, T2 *dat2,
+                                 T3 *dat3, T4 *dat4) {
+    if (dat1 && dat2 && dat3 && dat4) {
+        uint8_t const &n = cmdStack.nrOfCmdsInQueue;
+        int const STACKDEPTH = sizeof(cmdStack.para1);
+        if ((n > 0) && (n <= STACKDEPTH)) {
+            uint16_t const nxt = cmdStack.AsynchSend[0];
+            move_buffer_down_by_one(cmdStack.AsynchSend);
+            *dat1 = cmdStack.para1[n];
+            *dat2 = cmdStack.para2[n];
+            *dat3 = cmdStack.para3[n];
+            *dat4 = cmdStack.para4[n];
+            cmdStack.nrOfCmdsInQueue = n - 1;
+            return nxt;
+        }
+    }
+    qCritical() << "cannot fetch cmd";
+    return 0;   // error
+}
 
+void sendWRcmd_INI(void) {
     sendWRcmd_clrCmdStack();
     sendWRcmd_clrCmd4Stack();
     sendFDcmd_clrStack();
     longFDcmd_clrStack();
 }
 
-// Command Stack for commands without parameters
-
-
-static uint16_t nextAsynchsendCmd0[CMDSTACKDEPTH];
-static uint8_t  nrOfCmdsInQueue;
-/* convention: use simple (not rotating) FIFO Stack:
-Example: nrOfCmdsInQueue=4 then
-    nextAsynchsendCmd0[0]=cmd1      // was stored as first
-    nextAsynchsendCmd0[1]=cmd2
-    nextAsynchsendCmd0[2]=cmd3
-    nextAsynchsendCmd0[3]=cmd4      // came in as last
-
-    Send: [0] first, then move buffer 1 down:
-    nextAsynchsendCmd0[0]=cmd2
-    nextAsynchsendCmd0[1]=cmd3
-    nextAsynchsendCmd0[2]=cmd4
-    nextAsynchsendCmd0[3]=0;
-    nrOfCmdsInQueue=3 now
-*/
-
-void sendWRcmd_clrCmdStack(void)
-{
-    uint8_t nn;
-    for (nn=0; nn<CMDSTACKDEPTH; nn++)
-        nextAsynchsendCmd0[nn]=0;
-    nrOfCmdsInQueue=0;
+void sendWRcmd_clrCmdStack(void) {
+    sendWRcmd_clearCmdStack(SharedMemBuffer::getData()->Cmd0);
+}
+void sendWRcmd_clrCmd4Stack(void) {
+    sendWRcmd_clearCmdStack(SharedMemBuffer::getData()->Cmd4);
+}
+void sendWRcmd_clrCmd8Stack(void) {
+    sendWRcmd_clearCmdStack(SharedMemBuffer::getData()->Cmd8);
 }
 
-bool sendWRcmd_setSendCommand0(uint16_t nextCmd)
-{
+bool sendWRcmd_setSendCommand0(uint16_t nextCmd, uint8_t dat1, uint8_t dat2,
+                               uint8_t dat3, uint8_t dat4) {
     // write Command to memory, wait for transport
-    if (nrOfCmdsInQueue>=CMDSTACKDEPTH)
-    {
-        qDebug() << "cannot save cmd because stack is full";
-        return false;           // not possible
-    }
-    nextAsynchsendCmd0[nrOfCmdsInQueue++]=nextCmd;
-    //qDebug() << "PI cmd queued:"<< nextCmd << ", saved, pp=" << nrOfCmdsInQueue;
-    return true;                // ok, will be sent
+    return sendWRcmd_setSendCmd(SharedMemBuffer::getData()->Cmd0,
+                                nextCmd, dat1, dat2, dat3, dat4);
 }
-
-uint16_t sendWRcmd_getSendCommand0(void)
-{
-    uint16_t nxtAsynchCmd;
-    uint8_t nn, ll;
-    if (nrOfCmdsInQueue==0 || nrOfCmdsInQueue>CMDSTACKDEPTH)
-        return 0;   // error
-    nxtAsynchCmd=nextAsynchsendCmd0[0];
-
-    // move Puffer down by one element
-    if (CMDSTACKDEPTH>0)
-        ll=CMDSTACKDEPTH-1;
-    else
-        ll=0;
-    for (nn=0; nn<ll; nn++)
-        nextAsynchsendCmd0[nn]=nextAsynchsendCmd0[nn+1];
-
-    if (nrOfCmdsInQueue>0)
-        nrOfCmdsInQueue--;
-    //qDebug() << "PI cmd queued:"<< nxtAsynchCmd << ", restored, pp now =" << nrOfCmdsInQueue;
-    return nxtAsynchCmd;
-}
-
-//---------------------------------------------------------------------------------------------------------------------
-//---------------------------------------------------------------------------------------------------------------------
-// Command Stack for commands with 4 parameters
-
-
-
-static uint16_t nextAsynchsendCmd4[CMD4STACKDEPTH];
-static uint8_t  nextCmd4para1[CMD4STACKDEPTH];
-static uint8_t  nextCmd4para2[CMD4STACKDEPTH];
-static uint8_t  nextCmd4para3[CMD4STACKDEPTH];
-static uint8_t  nextCmd4para4[CMD4STACKDEPTH];
-static uint8_t  nrOfCmds4InQueue;
-/* convention: use simple (not rotating) FIFO Stack:
-Example: nrOfCmdsInQueue=4 then
-    nextAsynchsendCmd0[0]=cmd1      // was stored as first
-    nextAsynchsendCmd0[1]=cmd2
-    nextAsynchsendCmd0[2]=cmd3
-    nextAsynchsendCmd0[3]=cmd4      // came in as last
-
-    Send: [0] first, then move buffer 1 down:
-    nextAsynchsendCmd0[0]=cmd2
-    nextAsynchsendCmd0[1]=cmd3
-    nextAsynchsendCmd0[2]=cmd4
-    nextAsynchsendCmd0[3]=0;
-    nrOfCmdsInQueue=3 now
-*/
-
-
-void sendWRcmd_clrCmd4Stack(void)
-{
-    uint8_t nn;
-    for (nn=0; nn<CMD4STACKDEPTH; nn++)
-    {
-        nextAsynchsendCmd4[nn]=0;
-        nextCmd4para1[nn]=0;
-        nextCmd4para2[nn]=0;
-        nextCmd4para3[nn]=0;
-        nextCmd4para4[nn]=0;
-    }
-    nrOfCmds4InQueue=0;
-}
-
-bool sendWRcmd_setSendCommand4(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4)
-{
+bool sendWRcmd_setSendCommand4(uint16_t nextCmd,
+                               uint8_t dat1, uint8_t dat2,
+                               uint8_t dat3, uint8_t dat4) {
     // write Command to memory, wait for transport
-    if (nrOfCmds4InQueue>=CMD4STACKDEPTH)
-    {
-        qDebug() << "cannot save cmd because stack is full";
-        return false;           // not possible
-    }
-    nextAsynchsendCmd4[nrOfCmds4InQueue]=nextCmd;
-    nextCmd4para1[nrOfCmds4InQueue]=dat1;
-    nextCmd4para2[nrOfCmds4InQueue]=dat2;
-    nextCmd4para3[nrOfCmds4InQueue]=dat3;
-    nextCmd4para4[nrOfCmds4InQueue]=dat4;
-    //qDebug() << "data with 4 data byte saved, pp=" << nrOfCmds4InQueue;
-    //qDebug() << " dat1=" << nextCmd4para1[nrOfCmds4InQueue] << " dat2=" << nextCmd4para2[nrOfCmds4InQueue]
-    //             << " dat3=" << nextCmd4para3[nrOfCmds4InQueue]  << " dat4=" << nextCmd4para4[nrOfCmds4InQueue];
-    nrOfCmds4InQueue++;
-    return true;                // ok, will be sent
+    return sendWRcmd_setSendCmd(SharedMemBuffer::getData()->Cmd4, nextCmd, dat1,
+                                dat2, dat3, dat4);
 }
-
-uint16_t sendWRcmd_getSendCommand4(uint8_t *dat1, uint8_t *dat2, uint8_t *dat3, uint8_t *dat4)
-{
-    uint16_t nxtAsynchCmd;
-    uint8_t nn, ll;
-
-    if (nrOfCmds4InQueue==0 || nrOfCmds4InQueue>CMD4STACKDEPTH)
-        return 0;   // error
-    nxtAsynchCmd=nextAsynchsendCmd4[0];
-    *dat1=nextCmd4para1[0];
-    *dat2=nextCmd4para2[0];
-    *dat3=nextCmd4para3[0];
-    *dat4=nextCmd4para4[0];
-    //qDebug() << "cmd4  restored to send from [0];  pp=" << nrOfCmds4InQueue;
-    //qDebug() << " data1: " << nextCmd4para1[0] << " data2: " << nextCmd4para2[0] <<
-    //            " data3: " << nextCmd4para3[0] << " data4: " << nextCmd4para4[0];
-
-    // move Puffer down by one element
-        if (CMD4STACKDEPTH>0)
-        ll=CMD4STACKDEPTH-1;
-    else
-        ll=0;
-    for (nn=0; nn<ll; nn++)
-    {
-        nextAsynchsendCmd4[nn]=nextAsynchsendCmd4[nn+1];
-        nextCmd4para1[nn]=nextCmd4para1[nn+1];
-        nextCmd4para2[nn]=nextCmd4para2[nn+1];
-        nextCmd4para3[nn]=nextCmd4para3[nn+1];
-        nextCmd4para4[nn]=nextCmd4para4[nn+1];
-    }
-    if (nrOfCmds4InQueue>0)
-        nrOfCmds4InQueue--;
-    //qDebug() << "cmd4  after push down: pp=" << nrOfCmds4InQueue;
-    return nxtAsynchCmd;
-}
-
-
-
-
-
-static uint16_t  nextAsynchsendCmd8[CMD8STACKDEPTH];
-static uint8_t   nextCmd8para1[CMD8STACKDEPTH];
-static uint8_t   nextCmd8para2[CMD8STACKDEPTH];
-static uint16_t  nextCmd8para3[CMD8STACKDEPTH];
-static uint32_t  nextCmd8para4[CMD8STACKDEPTH];
-static uint8_t   nrOfCmds8InQueue;
-
-void sendWRcmd_clrCmd8Stack(void)
-{
-    uint8_t nn;
-    for (nn=0; nn<CMD8STACKDEPTH; nn++)
-    {
-        nextAsynchsendCmd8[nn]=0;
-        nextCmd8para1[nn]=0;
-        nextCmd8para2[nn]=0;
-        nextCmd8para3[nn]=0;
-        nextCmd8para4[nn]=0;
-    }
-    nrOfCmds8InQueue=0;
-}
-
-bool sendWRcmd_setSendCommand8(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint16_t dat3, uint32_t dat4)
-{
+bool sendWRcmd_setSendCommand8(uint16_t nextCmd,
+                               uint8_t dat1, uint8_t dat2,
+                               uint16_t dat3, uint32_t dat4) {
     // write Command to memory, wait for transport
-    if (nrOfCmds8InQueue>=CMD8STACKDEPTH)
-    {
-        qDebug() << "cannot save cmd because stack is full";
-        return false;           // not possible
-    }
-    nextAsynchsendCmd8[nrOfCmds8InQueue]=nextCmd;
-    nextCmd8para1[nrOfCmds8InQueue]=dat1;
-    nextCmd8para2[nrOfCmds8InQueue]=dat2;
-    nextCmd8para3[nrOfCmds8InQueue]=dat3;
-    nextCmd8para4[nrOfCmds8InQueue]=dat4;
-    nrOfCmds8InQueue++;
+    return sendWRcmd_setSendCmd(SharedMemBuffer::getData()->Cmd8, nextCmd, dat1,
+                                dat2, dat3, dat4);
+}
+
+uint16_t sendWRcmd_getSendCommand0(uint8_t *dat1, uint8_t *dat2,
+                                   uint8_t *dat3, uint8_t *dat4) {
+    return sendWRcmd_getSendCmd(SharedMemBuffer::getData()->Cmd0, dat1, dat2,
+                                dat3, dat4);
+}
+uint16_t sendWRcmd_getSendCommand4(uint8_t *dat1, uint8_t *dat2,
+                                   uint8_t *dat3, uint8_t *dat4) {
+    return sendWRcmd_getSendCmd(SharedMemBuffer::getData()->Cmd4, dat1, dat2,
+                                dat3, dat4);
+}
+uint16_t sendWRcmd_getSendCommand8(uint8_t *dat1, uint8_t *dat2,
+                                   uint16_t *dat3, uint32_t *dat4) {
+    return sendWRcmd_getSendCmd(SharedMemBuffer::getData()->Cmd8, dat1, dat2,
+                                dat3, dat4);
+}
+
+bool sendWRcmd_setSendBlock160(uint8_t leng, uint8_t const *buf) {
+    SharedMemBuffer::getData()->next.sendAsyDatLen = std::min(leng, (uint8_t)160);
+    clear(SharedMemBuffer::getData()->next.sendAsynchDataBuf);
+    memcpy((char *)(&SharedMemBuffer::getData()->next.sendAsynchDataBuf),
+           (char const *)(buf),
+           SharedMemBuffer::getDataConst()->next.sendAsyDatLen);
     return true;                // ok, will be sent
 }
-
-uint16_t sendWRcmd_getSendCommand8(uint8_t *dat1, uint8_t *dat2, uint16_t *dat3, uint32_t *dat4)
-{
-    uint16_t nxtAsynchCmd;
-    uint8_t nn, ll;
-
-    if (nrOfCmds8InQueue==0 || nrOfCmds8InQueue>CMD8STACKDEPTH)
-        return 0;   // error
-    nxtAsynchCmd=nextAsynchsendCmd8[0];
-    *dat1=nextCmd8para1[0];
-    *dat2=nextCmd8para2[0];
-    *dat3=nextCmd8para3[0];
-    *dat4=nextCmd8para4[0];
-
-    // move buffer down by one element
-    if (CMD8STACKDEPTH>0)
-        ll=CMD8STACKDEPTH-1;
-    else
-        ll=0;
-    for (nn=0; nn<ll; nn++)
-    {
-        nextAsynchsendCmd8[nn]=nextAsynchsendCmd8[nn+1];
-        nextCmd8para1[nn]=nextCmd8para1[nn+1];
-        nextCmd8para2[nn]=nextCmd8para2[nn+1];
-        nextCmd8para3[nn]=nextCmd8para3[nn+1];
-        nextCmd8para4[nn]=nextCmd8para4[nn+1];
-    }
-    if (nrOfCmds8InQueue>0)
-        nrOfCmds8InQueue--;
-    return nxtAsynchCmd;
-}
-
-
-
-
-
-
-
-static uint8_t sendAsynchDataBuf[160]; // no stack, only ONE buffer
-static uint8_t sendAsyDatLen;
-
-bool sendWRcmd_setSendBlock160(uint8_t leng, uint8_t *buf)
-{
-    //qDebug()  << "pi epi: storing send data";
-    if (leng>160) leng=160;
-    sendAsyDatLen=leng;
-    tslib_strclr(sendAsynchDataBuf, 0, 160);
-    for (uint8_t nn=0; nn<leng; nn++)
-        sendAsynchDataBuf[nn]=buf[nn];
-    return true;                // ok, will be sent
-}
-
-uint8_t sendWRcmd_getSendBlock160(uint8_t *leng, uint8_t *buf)
-{
+uint8_t sendWRcmd_getSendBlock160(uint8_t *leng, uint8_t *buf) {
     //qDebug()  << "pi gpi: restoring send data";
-    *leng=sendAsyDatLen;
-    for (uint8_t nn=0; nn<sendAsyDatLen; nn++)
-        buf[nn]=sendAsynchDataBuf[nn];
-    sendAsyDatLen=0;
-    //tslib_strclr(sendAsynchDataBuf, 0, 64);
+    *leng = SharedMemBuffer::getDataConst()->next.sendAsyDatLen;
+    memcpy((char *)buf,
+           (char const *)(SharedMemBuffer::getData()->next.sendAsynchDataBuf),
+           *leng);
+    SharedMemBuffer::getData()->next.sendAsyDatLen = 0;
     return *leng;
 }
 
@@ -290,184 +164,141 @@ uint8_t sendWRcmd_getSendBlock160(uint8_t *leng, uint8_t *buf)
 // start with: SENDDIRCMD_EXCHGMDB,
     // send crude data from here to DC, DC to mdb slaves, mdb answer, return here within 50ms
 
-
-static uint8_t Sdata_mdbSendBuffer[64];
-static uint8_t Sdata_mdbSendLen;
-
-uint8_t epi_store64ByteSendData(uint8_t length, uint8_t *buf)
-{
+uint8_t epi_store64ByteSendData(uint8_t length, uint8_t const *buf) {
     // HWapi writes data to be forwarded to DC and further to mdb-device
-    for (uint8_t nn=0; nn<length; nn++)
-        Sdata_mdbSendBuffer[nn]=buf[nn];
-    Sdata_mdbSendLen=length;
+    memcpy((char *)(&SharedMemBuffer::getData()->Sdata.mdbSendBuffer[0]),
+           (char const *)buf, length);
+    SharedMemBuffer::getData()->Sdata.mdbSendLen = length;
     return 0;
 }
 
-uint8_t gpi_restore64ByteSendData(uint8_t *length, uint8_t *buf)
-{
+uint8_t gpi_restore64ByteSendData(uint8_t *length, uint8_t *buf) {
     // datif reads data to forward to dc
-    for (uint8_t nn=0; nn<Sdata_mdbSendLen; nn++)
-        buf[nn]=Sdata_mdbSendBuffer[nn];
-    *length=Sdata_mdbSendLen;
-    Sdata_mdbSendLen=0;
+    memcpy((char *)(buf),
+           (char const *)(&SharedMemBuffer::getDataConst()->Sdata.mdbSendBuffer[0]),
+            SharedMemBuffer::getDataConst()->Sdata.mdbSendLen);
+    *length = SharedMemBuffer::getDataConst()->Sdata.mdbSendLen;
+    SharedMemBuffer::getData()->Sdata.mdbSendLen = 0;
     return 0;
 }
 
-
-
-
-
-
 //------------------------------------------------------------------------------------
 //------------------------------------------------------------------------------------
 //---------------------------------------- Printer Text Fifo -------------------------
-static uint8_t prnDataParameters[4];
-static uint8_t prnDataBufferUser;
-
-void epi_storeUserOfSendingTextBuffer(uint8_t user, uint8_t para1, uint8_t para2, uint8_t para3, uint8_t para4 )
-{
+void epi_storeUserOfSendingTextBuffer(uint8_t user, uint8_t para1,
+                                      uint8_t para2, uint8_t para3,
+                                      uint8_t para4 ) {
     // user=1: Text-Print is using this buffer
     //      2: QR-code-Printer is using this buffer
-    prnDataBufferUser=user;
-    prnDataParameters[0]=para1;
-    prnDataParameters[1]=para2;
-    prnDataParameters[2]=para3;
-    prnDataParameters[3]=para4;
-
-//    qDebug() << "new user stored: " << user;
-
+    SharedMemBuffer::getData()->prn.DataBufferUser = user;
+    SharedMemBuffer::getData()->prn.DataParameters[0] = para1;
+    SharedMemBuffer::getData()->prn.DataParameters[1] = para2;
+    SharedMemBuffer::getData()->prn.DataParameters[2] = para3;
+    SharedMemBuffer::getData()->prn.DataParameters[3] = para4;
 }
 
-uint8_t gpi_getUserOfSendingTextBuffer(uint8_t *para1, uint8_t *para2, uint8_t *para3, uint8_t *para4)
-{
+uint8_t gpi_getUserOfSendingTextBuffer(uint8_t *para1, uint8_t *para2,
+                                       uint8_t *para3, uint8_t *para4) {
     // user=1: Text-Print is using this buffer
     //      2: QR-code-Printer is using this buffer
     //qDebug() << "returning user "<< prnDataBufferUser;
-
-    *para1=prnDataParameters[0];
-    *para2=prnDataParameters[1];
-    *para3=prnDataParameters[2];
-    *para4=prnDataParameters[3];
-    return prnDataBufferUser;
-
+    *para1 = SharedMemBuffer::getDataConst()->prn.DataParameters[0];
+    *para2 = SharedMemBuffer::getDataConst()->prn.DataParameters[1];
+    *para3 = SharedMemBuffer::getDataConst()->prn.DataParameters[2];
+    *para4 = SharedMemBuffer::getDataConst()->prn.DataParameters[3];
+    return SharedMemBuffer::getDataConst()->prn.DataBufferUser;
 }
 
-
-    // Sending Text Fifo
+// Sending Text Fifo
 // ONE printer doc consists of 20 x 64 byte
 // #define MAXNROF_PRNBYTES   64
 // #define MAXNROF_PRNBLOCKS  20
-static char Sdata_PRN_TEXT[MAXNROF_PRNBLOCKS][MAXNROF_PRNBYTES];
-static uint8_t pPrnDataBuff;        // points to next PRINTER_BLOCK
-
+// static char Sdata_PRN_TEXT[MAXNROF_PRNBLOCKS][MAXNROF_PRNBYTES];
+// static uint8_t pPrnDataBuff;        // points to next PRINTER_BLOCK
 
 //static uint8_t pPrnDataBuff;        // points to next waiting printer text
 //  defined above, needed if more then one text is stored (before sent)
 // every block will be sent after 100ms, if 8 blocks are stored within this 100ms
 // then pointer goes up to 8. Important: FIFO!!!!!!!!
 
-void epi_resetPrinterStack(void)
-{
-    pPrnDataBuff=0;
+void epi_resetPrinterStack(void) {
+    SharedMemBuffer::getData()->prn.pDataBuff = 0;
 }
 
-uint8_t epi_storePrnText(char *buf, uint8_t leng)
-{
+uint8_t epi_storePrnText(char *buf, uint8_t leng) {
     // store text from Gui in next higher free memory 0....9
 
-    uint16_t len;
-    uint8_t  pp, nn;
+    uint16_t const len = std::min(leng, (uint8_t)MAXNROF_PRNBYTES);
+    int const pp = SharedMemBuffer::getDataConst()->prn.pDataBuff;
 
-    pp=pPrnDataBuff;    // next free memory block with 64byte each
-    if (pp>=MAXNROF_PRNBLOCKS)
-        return 1;   // not possible, no free mem
-
-    //len=tslib_strlen(buf);    // kennt keine Binärzeichen!!!!!!
-    len=leng;
-    if (len>MAXNROF_PRNBYTES)
-        len=MAXNROF_PRNBYTES;
-
-    tslib_strclr(Sdata_PRN_TEXT[pp], 0, MAXNROF_PRNBYTES);
-
-    for (nn=0; nn<len; nn++)
-        Sdata_PRN_TEXT[pp][nn]=buf[nn];     // copy new text into buffer
-
-    if (pPrnDataBuff<MAXNROF_PRNBLOCKS)
-        pPrnDataBuff++;                     // inc pointer if end not yet reached
+    // next free memory block with 64byte each
+    if (pp < MAXNROF_PRNBLOCKS) {
+        clear(SharedMemBuffer::getData()->Sdata.PRN_TEXT[pp]);
+        // copy new text into buffer
+        memcpy((char *)(&SharedMemBuffer::getData()->Sdata.PRN_TEXT[pp][0]),
+               (char const *)(buf), len);
+        // inc pointer if end not yet reached
+        SharedMemBuffer::getData()->prn.pDataBuff++;
         return 0;       // OK
+    }
+
+    return 1;   // not possible, no free mem
 }
 
-
-
-uint8_t gpi_restorePrnText(uint8_t *retbuf)
-{
+uint8_t gpi_restorePrnText(uint8_t *retbuf) {
     // read printer text and send to slave, size of retbuf == 64
 
     // always read from [0] because this is the oldest (Fifo)
     // then move all text lines down by one and dec pointer
+    int pp = SharedMemBuffer::getDataConst()->prn.pDataBuff;
 
-    uint8_t  nn, pp=pPrnDataBuff;
-
-    if (pp==0)    // next free memory block with 64byte each
-        return 1;           // no text in buffer
-
+    if (pp > 0) { // next free memory block with 64byte each
         // example: pp=5: then buffers [0...4] are occupied
 
-    for (nn=0; nn<MAXNROF_PRNBYTES; nn++)
-        retbuf[nn] = uint8_t (Sdata_PRN_TEXT[0][nn]);     // restore oldest text
+        memcpy((char *)retbuf, // restore oldest text
+               (char const *)(&SharedMemBuffer::getData()->Sdata.PRN_TEXT[0][0]),
+               sizeof(SharedMemBuffer::getDataConst()->Sdata.PRN_TEXT[0]));
 
         // now copy textline [1] to [0], then
         // copy textline [2] to [1], then
         // copy textline [3] to [2] .... upto [pp-1] to [pp-2]
         // hint: copying from 9....0 would delete all strings!!!!!!
 
-    for (nn=0; nn<(pp-1); nn++)
-        tslib_strcpy(Sdata_PRN_TEXT[nn+1], Sdata_PRN_TEXT[nn], MAXNROF_PRNBYTES);
-    if (pPrnDataBuff>0)
-        pPrnDataBuff--;
-    pp=pPrnDataBuff;
+        for (int nn=0; nn < (pp-1); nn++) {
+            memmove((char *)(&SharedMemBuffer::getData()->Sdata.PRN_TEXT[nn+1][0]),
+                    (char const *)(&SharedMemBuffer::getDataConst()->Sdata.PRN_TEXT[nn][0]),
+                    sizeof(SharedMemBuffer::getDataConst()->Sdata.PRN_TEXT[0]));
+        }
+
+        if (SharedMemBuffer::getDataConst()->prn.pDataBuff > 0) {
+            SharedMemBuffer::getData()->prn.pDataBuff--;
+        }
+
+        pp = SharedMemBuffer::getDataConst()->prn.pDataBuff;
         // example: pp=4: then buffers [0...3] are still occupied, pp=0: all buffers empty
 
         // now clear highest copyed line (which got free now)
-    tslib_strclr(Sdata_PRN_TEXT[pp], 0, MAXNROF_PRNBYTES);
+        clear(SharedMemBuffer::getData()->Sdata.PRN_TEXT[pp]);
 
         // optionally: clear all remaining higher lines:
-    for (nn=(pp+1); nn<MAXNROF_PRNBLOCKS; nn++)
-         tslib_strclr(Sdata_PRN_TEXT[nn], 0, MAXNROF_PRNBYTES);
-
+        for (int nn = (pp+1); nn < MAXNROF_PRNBLOCKS; nn++) {
+            clear(SharedMemBuffer::getData()->Sdata.PRN_TEXT[nn]);
+        }
         return 0;
+    }
+
+    return 1; // no text in buffer
 }
 
-uint8_t gpi_chk4remainingText(void)
-{
+uint8_t gpi_chk4remainingText(void) {
     // retval: 0: no more textline left (to send)  >0: nr of 64byte-blocks
-    return (pPrnDataBuff);
+    return SharedMemBuffer::getDataConst()->prn.pDataBuff;
 }
 
-
-
-
-
-
-
-
-
-
 // ---------------------------------------------------------------------------------
 //   11.4.23 neu, Kommando direkt an "FastDevice"-protokoll senden, nicht mehr umsetzen
 // ---------------------------------------------------------------------------------
 
-
-// short command, 4 data bytes
-static uint8_t nextFDwrCmd[FDCMD_STACKDEPTH];
-static uint8_t nextFDrdCmd[FDCMD_STACKDEPTH];
-static uint8_t nextFDblkNr[FDCMD_STACKDEPTH];
-
-static uint8_t  nextFDpara1[FDCMD_STACKDEPTH];
-static uint8_t  nextFDpara2[FDCMD_STACKDEPTH];
-static uint8_t  nextFDpara3[FDCMD_STACKDEPTH];
-static uint8_t  nextFDpara4[FDCMD_STACKDEPTH];
-static uint8_t  p_nextFDcmdsInQueue;
 /* convention: use simple (not rotating) FIFO Stack:
 Example: nrOfCmdsInQueue=4 then
     nextAsynchsendCmd0[0]=cmd1      // was stored as first
@@ -483,180 +314,144 @@ Example: nrOfCmdsInQueue=4 then
     nrOfCmdsInQueue=3 now
 */
 
-
-void sendFDcmd_clrStack(void)
-{
-    uint8_t nn;
-    for (nn=0; nn<FDCMD_STACKDEPTH; nn++)
-    {
-        nextFDwrCmd[nn]=0;
-        nextFDrdCmd[nn]=0;
-        nextFDblkNr[nn]=0;
-        nextFDpara1[nn]=0;
-        nextFDpara2[nn]=0;
-        nextFDpara3[nn]=0;
-        nextFDpara4[nn]=0;
-    }
-    p_nextFDcmdsInQueue=0;
+void sendFDcmd_clrStack(void) {
+    clear(SharedMemBuffer::getData()->FDShort.wrCmd);
+    clear(SharedMemBuffer::getData()->FDShort.rdCmd);
+    clear(SharedMemBuffer::getData()->FDShort.blkNr);
+    clear(SharedMemBuffer::getData()->FDShort.para1);
+    clear(SharedMemBuffer::getData()->FDShort.para2);
+    clear(SharedMemBuffer::getData()->FDShort.para3);
+    clear(SharedMemBuffer::getData()->FDShort.para4);
+    SharedMemBuffer::getData()->FDShort.cmdsInQueue = 0;
 }
 
-bool sendFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4)
-{
+bool sendFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum,
+                   uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4) {
     // write Command to memory, wait for transport
-    if (p_nextFDcmdsInQueue>=FDCMD_STACKDEPTH)
-    {
-        qDebug() << "cannot save cmd because stack is full";
-        return false;           // not possible
-    }
-    nextFDwrCmd[p_nextFDcmdsInQueue]=nextWrCmd;
-    nextFDrdCmd[p_nextFDcmdsInQueue]=nextRdCmd;
-    nextFDblkNr[p_nextFDcmdsInQueue]=blockNum;
-    nextFDpara1[p_nextFDcmdsInQueue]=dat1;
-    nextFDpara2[p_nextFDcmdsInQueue]=dat2;
-    nextFDpara3[p_nextFDcmdsInQueue]=dat3;
-    nextFDpara4[p_nextFDcmdsInQueue]=dat4;
-    //qDebug() << "data with 4 data byte saved, pp=" << nrOfCmds4InQueue;
-    //qDebug() << " dat1=" << nextCmd4para1[nrOfCmds4InQueue] << " dat2=" << nextCmd4para2[nrOfCmds4InQueue]
-    //             << " dat3=" << nextCmd4para3[nrOfCmds4InQueue]  << " dat4=" << nextCmd4para4[nrOfCmds4InQueue];
-    p_nextFDcmdsInQueue++;
+    int const c = SharedMemBuffer::getDataConst()->FDShort.cmdsInQueue;
+    if (c < FDCMD_STACKDEPTH) {
+        SharedMemBuffer::getData()->FDShort.wrCmd[c] = nextWrCmd;
+        SharedMemBuffer::getData()->FDShort.rdCmd[c] = nextRdCmd;
+        SharedMemBuffer::getData()->FDShort.blkNr[c] = blockNum;
+        SharedMemBuffer::getData()->FDShort.para1[c] = dat1;
+        SharedMemBuffer::getData()->FDShort.para2[c] = dat2;
+        SharedMemBuffer::getData()->FDShort.para3[c] = dat3;
+        SharedMemBuffer::getData()->FDShort.para4[c] = dat4;
+        SharedMemBuffer::getData()->FDShort.cmdsInQueue = (c + 1);
         return true;                // ok, will be sent
+    }
+    qCritical() << "cannot save cmd because stack is full";
+    return false; // not possible
 }
 
-bool sendFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum, uint8_t *dat1, uint8_t *dat2, uint8_t *dat3, uint8_t *dat4)
-{
-    uint8_t nn, ll;
+bool sendFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum,
+                   uint8_t *dat1, uint8_t *dat2, uint8_t *dat3, uint8_t *dat4) {
 
-    if (p_nextFDcmdsInQueue==0 || p_nextFDcmdsInQueue>FDCMD_STACKDEPTH)
-        return false;           // not possible
+    int const c = SharedMemBuffer::getDataConst()->FDShort.cmdsInQueue;
 
-    *nextWrCmd=nextFDwrCmd[0];
-    *nextRdCmd=nextFDrdCmd[0];
-    *blockNum=nextFDblkNr[0];
-    *dat1=nextFDpara1[0];
-    *dat2=nextFDpara2[0];
-    *dat3=nextFDpara3[0];
-    *dat4=nextFDpara4[0];
-    //qDebug() << "cmd4  restored to send from [0];  pp=" << nrOfCmds4InQueue;
-    //qDebug() << " data1: " << nextCmd4para1[0] << " data2: " << nextCmd4para2[0] <<
-    //            " data3: " << nextCmd4para3[0] << " data4: " << nextCmd4para4[0];
+    if ((c > 0)  && (c <= FDCMD_STACKDEPTH)) {
+        *nextWrCmd = SharedMemBuffer::getDataConst()->FDShort.wrCmd[c];
+        *nextRdCmd = SharedMemBuffer::getDataConst()->FDShort.rdCmd[c];
+        *blockNum = SharedMemBuffer::getDataConst()->FDShort.blkNr[c];
+        *dat1 = SharedMemBuffer::getDataConst()->FDShort.para1[c];
+        *dat2 = SharedMemBuffer::getDataConst()->FDShort.para2[c];
+        *dat3 = SharedMemBuffer::getDataConst()->FDShort.para3[c];
+        *dat4 = SharedMemBuffer::getDataConst()->FDShort.para4[c];
 
         // move Puffer down by one element
-    if (FDCMD_STACKDEPTH>0)
-        ll=FDCMD_STACKDEPTH-1;
-    else
-        ll=0;
-    for (nn=0; nn<ll; nn++)
-    {
-        nextFDwrCmd[nn]=nextFDwrCmd[nn+1];
-        nextFDrdCmd[nn]=nextFDrdCmd[nn+1];
-        nextFDblkNr[nn]=nextFDblkNr[nn+1];
-        nextFDpara1[nn]=nextFDpara1[nn+1];
-        nextFDpara2[nn]=nextFDpara2[nn+1];
-        nextFDpara3[nn]=nextFDpara3[nn+1];
-        nextFDpara4[nn]=nextFDpara4[nn+1];
+        for (int m = 0; m < c-1; ++m) {
+            int const n = m + 1;
+            SharedMemBuffer::getData()->FDShort.wrCmd[m] = SharedMemBuffer::getDataConst()->FDShort.wrCmd[n];
+            SharedMemBuffer::getData()->FDShort.rdCmd[m] = SharedMemBuffer::getDataConst()->FDShort.rdCmd[n];
+            SharedMemBuffer::getData()->FDShort.blkNr[m] = SharedMemBuffer::getDataConst()->FDShort.blkNr[n];
+            SharedMemBuffer::getData()->FDShort.para1[m] = SharedMemBuffer::getDataConst()->FDShort.para1[n];
+            SharedMemBuffer::getData()->FDShort.para2[m] = SharedMemBuffer::getDataConst()->FDShort.para2[n];
+            SharedMemBuffer::getData()->FDShort.para3[m] = SharedMemBuffer::getDataConst()->FDShort.para3[n];
+            SharedMemBuffer::getData()->FDShort.para4[m] = SharedMemBuffer::getDataConst()->FDShort.para4[n];
         }
-    if (p_nextFDcmdsInQueue>0)
-        p_nextFDcmdsInQueue--;
-    //qDebug() << "cmd4  after push down: pp=" << nrOfCmds4InQueue;
+        SharedMemBuffer::getData()->FDShort.cmdsInQueue = c - 1;
         return true;                // ok, will be sent
-}
-
-uint8_t check4FDshortCmd(void)
-{
-    // returns number of waiting command
-    return p_nextFDcmdsInQueue;
-}
-
-
-
-// long command, 64 data bytes
-static uint8_t longFDwrCmd[FDLONG_STACKDEPTH];
-static uint8_t longFDrdCmd[FDLONG_STACKDEPTH];
-static uint8_t longFDblkNr[FDLONG_STACKDEPTH];
-static uint8_t longFDlength[FDLONG_STACKDEPTH];
-
-static uint8_t  longFDpara[FDLONG_STACKDEPTH][64];
-static uint8_t  p_longFDcmdsInQueue;
-
-
-void longFDcmd_clrStack(void)
-{
-    uint8_t nn, mm;
-    for (nn=0; nn<FDLONG_STACKDEPTH; nn++)
-    {
-        longFDwrCmd[nn]=0;
-        longFDrdCmd[nn]=0;
-        longFDblkNr[nn]=0;
-        longFDlength[nn]=0;
-        for (mm=0; mm<64; mm++)
-            longFDpara[nn][mm]=0;
     }
-    p_longFDcmdsInQueue=0;
+    return false;           // not possible
+}
+
+uint8_t check4FDshortCmd(void) { // returns number of waiting command, max FDCMD_STACKDEPTH
+    return SharedMemBuffer::getDataConst()->FDShort.cmdsInQueue;
 }
 
 
-bool longFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t length, uint8_t *data)
-{
+uint8_t check4freeFDshortCmd(void) { // returns number of free places in short-command stack
+    return FDCMD_STACKDEPTH - SharedMemBuffer::getDataConst()->FDShort.cmdsInQueue;
+}
+
+void longFDcmd_clrStack(void) {
+    clear(SharedMemBuffer::getData()->FDLong.wrCmd);
+    clear(SharedMemBuffer::getData()->FDLong.rdCmd);
+    clear(SharedMemBuffer::getData()->FDLong.blkNr);
+    clear(SharedMemBuffer::getData()->FDLong.length);
+    clear(SharedMemBuffer::getData()->FDLong.para);
+    SharedMemBuffer::getData()->FDLong.cmdsInQueue = 0;
+}
+
+bool longFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum,
+                   uint8_t length, uint8_t const *data) {
     // write Command to memory, wait for transport
     // data buffer size always 64! data[64], padded with 0
-    uint8_t nn;
-    if (p_longFDcmdsInQueue>=FDLONG_STACKDEPTH)
-    {
-        qDebug() << "cannot save cmd because stack is full";
-        return false;           // not possible
-    }
-    longFDwrCmd[p_longFDcmdsInQueue]=nextWrCmd;
-    longFDrdCmd[p_longFDcmdsInQueue]=nextRdCmd;
-    longFDblkNr[p_longFDcmdsInQueue]=blockNum;
-    longFDlength[p_longFDcmdsInQueue]=length;
-    for (nn=0; nn<64; nn++)
-        longFDpara[p_longFDcmdsInQueue][nn]=data[nn];
+    int const c = SharedMemBuffer::getDataConst()->FDLong.cmdsInQueue;
 
-    p_longFDcmdsInQueue++;
+    if (c > 0 && c <= FDLONG_STACKDEPTH) {
+        SharedMemBuffer::getData()->FDLong.wrCmd[c] = nextWrCmd;
+        SharedMemBuffer::getData()->FDLong.rdCmd[c] = nextRdCmd;
+        SharedMemBuffer::getData()->FDLong.blkNr[c] = blockNum;
+        SharedMemBuffer::getData()->FDLong.length[c] = length;
+        memcpy((char *)SharedMemBuffer::getData()->FDLong.para[c],
+               (char const *)data,
+                sizeof(SharedMemBuffer::getDataConst()->FDLong.para[0]));
+
+        SharedMemBuffer::getData()->FDLong.cmdsInQueue = c + 1;
         return true;                // ok, will be sent
+    }
+    qCritical() << "cannot save cmd because stack is full";
+    return false;           // not possible
 }
 
-bool longFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum, uint8_t *length, uint8_t *data)
-{
-    uint8_t nn, mm, ll;
+bool longFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum,
+                   uint8_t *length, uint8_t *data) {
 
-    if (p_longFDcmdsInQueue==0 || p_longFDcmdsInQueue>FDLONG_STACKDEPTH)
-        return false;           // not possible
+    int const c = SharedMemBuffer::getDataConst()->FDLong.cmdsInQueue;
 
-    *nextWrCmd= longFDwrCmd[0];
-    *nextRdCmd= longFDrdCmd[0];
-    *blockNum = longFDblkNr[0];
-    *length   = longFDlength[0];
-    for (mm=0; mm<64; mm++)
-        data[mm] = longFDpara[0][mm];
+    if (c > 0 && c <= FDLONG_STACKDEPTH) {
+        *nextWrCmd = SharedMemBuffer::getDataConst()->FDLong.wrCmd[c];
+        *nextRdCmd = SharedMemBuffer::getDataConst()->FDLong.rdCmd[c];
+        *blockNum  = SharedMemBuffer::getDataConst()->FDLong.blkNr[c];
+        *length    = SharedMemBuffer::getDataConst()->FDLong.length[c];
+        memcpy((char *)data,
+               (char const *)SharedMemBuffer::getDataConst()->FDLong.para[c],
+                sizeof(SharedMemBuffer::getDataConst()->FDLong.para[0]));
 
         // move Puffer down by one element
-    if (FDLONG_STACKDEPTH>0)
-        ll=FDLONG_STACKDEPTH-1;
-    else
-        ll=0;
-    for (nn=0; nn<ll; nn++)
-    {
-        longFDwrCmd[nn]  = longFDwrCmd[nn+1];
-        longFDrdCmd[nn]  = longFDrdCmd[nn+1];
-        longFDblkNr[nn]  = longFDblkNr[nn+1];
-        longFDlength[nn] = longFDlength[nn+1];
-
-        for (mm=0; mm<64; mm++)
-            longFDpara[nn][mm] = longFDpara[nn+1][mm];
-
+        for (int m = 0; m < c-1; ++m) {
+            int const n = m + 1;
+            SharedMemBuffer::getData()->FDLong.wrCmd[m] = SharedMemBuffer::getDataConst()->FDLong.wrCmd[n];
+            SharedMemBuffer::getData()->FDLong.rdCmd[m] = SharedMemBuffer::getDataConst()->FDLong.rdCmd[n];
+            SharedMemBuffer::getData()->FDLong.blkNr[m] = SharedMemBuffer::getDataConst()->FDLong.blkNr[n];
+            SharedMemBuffer::getData()->FDLong.length[m] = SharedMemBuffer::getData()->FDLong.length[n];
+            memcpy((char *)SharedMemBuffer::getData()->FDLong.para[m],
+                   (char const *)SharedMemBuffer::getData()->FDLong.para[n],
+                   sizeof(SharedMemBuffer::getDataConst()->FDLong.para[0]));
         }
-    if (p_longFDcmdsInQueue>0)
-        p_longFDcmdsInQueue--;
-
+        SharedMemBuffer::getData()->FDLong.cmdsInQueue = c - 1;
         return true;                // ok, will be sent
+    }
+
+    qCritical() << "cannot save cmd because stack is full";
+    return false;           // not possible
 }
 
-uint8_t check4FDlongCmd(void)
-{
-    // returns number of waiting command
-    return p_longFDcmdsInQueue;
+uint8_t check4FDlongCmd(void) { // returns number of waiting command
+    return SharedMemBuffer::getDataConst()->FDLong.cmdsInQueue;
 }
 
-
-
+uint8_t check4freeFDlongCmd(void) { // returns number of free places in command stack
+    return FDLONG_STACKDEPTH - SharedMemBuffer::getDataConst()->FDLong.cmdsInQueue;
+}

src/serial_port_thread.cpp

@@ -0,0 +1,15 @@
+#include "serial_port_thread.h"
+
+
+SerialPortThread::SerialPortThread(QObject *parent)
+    : QThread(parent) {
+    this->setObjectName("SerialPortThread");
+}
+
+SerialPortThread::~SerialPortThread() {
+    m_loop.quit();
+}
+
+void SerialPortThread::run() {
+    m_loop.exec();
+}

src/serial_port_worker.cpp

@@ -0,0 +1,244 @@
+#include "serial_port_worker.h"
+#include "serial_port_thread.h"
+
+#include <QDebug>
+#include <QCoreApplication>
+
+std::atomic<uint8_t> Command::m_nextSendBufferIndex{0};
+std::atomic<uint8_t> Command::m_nextRecvBufferIndex{0};
+char Command::m_sendBuffers[256][SEND_BLOCK_SIZE]{{0}};
+char Command::m_recvBuffers[256][SEND_BLOCK_SIZE]{{0}};
+
+uint32_t Command::getNextCommandPriority(uint8_t priorityClass) {
+    static std::atomic<std::uint32_t> priority_1{0};
+    static std::atomic<std::uint32_t> priority_2{1000000000};
+    static std::atomic<std::uint32_t> priority_3{2000000000};
+    static std::atomic<std::uint32_t> priority_4{3000000000};
+    switch (priorityClass) {
+    case PRIORITY_1:
+        return priority_1.fetch_add(1);
+    case PRIORITY_2:
+        return priority_2.fetch_add(1);
+    case PRIORITY_3:
+        return priority_3.fetch_add(1);
+    case PRIORITY_4:
+        return priority_4.fetch_add(1);
+    }
+    return -1;
+}
+
+char *Command::getNextSendBuffer() {
+    uint8_t const nextIndex = m_nextSendBufferIndex.fetch_add(1);
+    return &m_sendBuffers[nextIndex][0];
+}
+
+char *Command::getNextRecvBuffer() {
+    uint8_t const nextIndex = m_nextRecvBufferIndex.fetch_add(1);
+    return &m_recvBuffers[nextIndex][0];
+}
+
+Command::Command(uint16_t cmdId, uint8_t sendBufferLength,
+                 uint8_t recvBufferLength, uint8_t priorityClass)
+    : m_priority(getNextCommandPriority(priorityClass))
+    , m_priorityClass(priorityClass)
+    , m_cmdId(cmdId)
+    , m_sendBuffer(Command::getNextSendBuffer())
+    , m_recvBuffer(Command::getNextRecvBuffer())
+    , m_sendBufferLength(sendBufferLength)
+    , m_recvBufferLength(recvBufferLength) {
+    memset(m_sendBuffer, 0x00, sizeof(m_sendBuffers[0]));
+}
+
+Command::Command()
+    : m_priority(0)
+    , m_priorityClass(0)
+    , m_cmdId(0)
+    , m_sendBuffer(0)
+    , m_recvBuffer(0)
+    , m_sendBufferLength(0)
+    , m_recvBufferLength(0) {
+}
+
+/**
+* \brief Constructor for SerialPort
+*
+* @date 08.11.2022 – first draft.
+*
+*/
+SerialPortWorker::SerialPortWorker(QString portName, enum QSerialPort::BaudRate baudRate, QObject *parent)
+    : QThread(parent)
+    , m_serialPort()
+    , m_serialPortOpened(false)
+    , m_portName(portName)
+    , m_baudRate(baudRate)
+    , m_bytesWritten(0) {
+    this->setObjectName("SerialPortWorker");
+
+    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) {
+        if (!info.isNull()) {
+            qDebug() << "Name .......... " << info.portName();
+            qDebug() << "Description ... " << info.description();
+            qDebug() << "Manufacturer .. " << info.manufacturer();
+            qDebug() << "SerialNumber .. " << info.serialNumber();
+            if (info.hasProductIdentifier()) {
+                qDebug() << "Product-ID .... " << info.productIdentifier();
+            }
+            if (info.hasVendorIdentifier()) {
+                qDebug() << "Vendor-ID ..... " << info.vendorIdentifier();
+            }
+            qDebug() << "Location ...... " << info.systemLocation();
+
+            if (info.portName() == m_portName) {
+                m_serialPortInfo = info;
+            }
+        }
+    }
+
+    if (m_serialPortInfo.portName() == m_portName) {
+        m_serialPort.setPort(m_serialPortInfo);
+        m_serialPort.setPortName(m_portName);
+        m_serialPort.setDataBits(QSerialPort::Data8);
+        m_serialPort.setParity(QSerialPort::NoParity);
+        m_serialPort.setStopBits(QSerialPort::OneStop);
+        m_serialPort.setFlowControl(QSerialPort::NoFlowControl);
+        m_serialPortOpened = m_serialPort.open(QIODevice::ReadWrite);
+    }
+}
+
+SerialPortWorker::~SerialPortWorker() {
+    closeSerialPort();
+}
+
+void SerialPortWorker::run() {
+    SerialPortThread serialPortThread;
+    this->moveToThread(&serialPortThread); // not really necessary
+
+    // Note: because this thread is moved to serialPortThread, the event loop
+    // used will be the one of serialPortThread (this-thread does not even have one).
+    // This is the only purpose of serialPortThread.
+    serialPortThread.start();
+
+    connect(&m_serialPort, SIGNAL(readyRead()), this, SLOT(getBytesAvailable()));
+    connect(&m_serialPort, SIGNAL(bytesWritten(qint64)), this, SLOT(getNumberOfBytesWritten(qint64)));
+
+    while (m_serialPortOpened) {
+        Command nextCmd = getNextCommand();
+        if (nextCmd.m_cmdId == Command::QUIT_SENTINEL) {
+            break;
+        }
+        QByteArray data(nextCmd.getNextSendBuffer(), nextCmd.m_sendBufferLength);
+        m_bytesWritten = 0;
+        m_serialPort.write(data);
+        // process events in event loop of associated thread
+        serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+        int maxWaitTime = WAIT_TIME_MAX;
+
+        while (maxWaitTime > 0 && m_bytesWritten < (uint32_t)data.size()) {
+            if (!m_serialPort.waitForBytesWritten(100)) { // wait timeout-ms for the bytes to be written
+                // process events in event loop of associated thread
+                serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+                maxWaitTime -= TIMEOUT;
+            }
+        }
+        if (m_bytesWritten == (uint32_t)data.size()) { // data written, wait for result
+            if (nextCmd.m_recvBufferLength > 0) {
+                // process events in event loop of associated thread
+                serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+                maxWaitTime = WAIT_TIME_MAX;
+                while (maxWaitTime > 0 && m_bytesAvailable < nextCmd.m_recvBufferLength) {
+                    if (!m_serialPort.waitForReadyRead(100)) {
+                        // process events in event loop of associated thread
+                        serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+                        maxWaitTime -= TIMEOUT;
+                    }
+                }
+                uint32_t const bytesAvailable = m_bytesAvailable;
+                if (bytesAvailable == nextCmd.m_recvBufferLength) {
+                    QByteArray result = m_serialPort.read(bytesAvailable);
+                    if (!result.isEmpty() && ((uint32_t)result.size() == bytesAvailable)) {
+                        memcpy(nextCmd.m_recvBuffer, result.data(), bytesAvailable);
+                        insertResult(nextCmd);
+                    }
+                } else {
+                    // error
+                }
+            }
+        } else {
+            // error
+        }
+    } // while (m_serialPortOpened)
+
+    serialPortThread.quit();
+    serialPortThread.wait();
+}
+
+bool SerialPortWorker::openSerialPort() {
+    if (!m_serialPortOpened) {
+        return m_serialPort.open(QIODevice::ReadWrite);
+    }
+    return false; // opening twice is not allowed
+}
+
+void SerialPortWorker::closeSerialPort() {
+    if (m_serialPortOpened) {
+        m_serialPort.close();
+        m_serialPortOpened = false;
+    }
+}
+
+void SerialPortWorker::quit() {
+    Command cmd(Command::QUIT_SENTINEL, 0, 0, Command::PRIORITY_1);
+    insertCommand(cmd);
+}
+
+void SerialPortWorker::insertCommand(Command const &cmd) {
+    {   std::lock_guard<std::mutex> lock(m_sendQueueMutex);
+        m_sendQueue.push(cmd);
+    } // release lock
+    m_sendQueueCondVar.notify_one();
+}
+
+Command SerialPortWorker::getNextCommand() {
+    Command nextCmd;
+    {   std::unique_lock<std::mutex> lock(m_sendQueueMutex);
+        m_sendQueueCondVar.wait(lock, [this]{ return !this->m_sendQueue.empty(); });
+        nextCmd = m_sendQueue.top();
+        m_sendQueue.pop();
+    } // release lock
+    return nextCmd;
+}
+
+void SerialPortWorker::insertResult(Command const &result) {
+    {   std::lock_guard<std::mutex> lock(m_recvQueueMutex);
+        m_recvQueue.push_back(result);
+    } // release lock
+    m_recvQueueCondVar.notify_one();
+}
+
+bool SerialPortWorker::getNextResult(Command &nextResult, int timeout) {
+    bool timed_out = false;
+    {   std::unique_lock<std::mutex> lock(m_recvQueueMutex);
+        if (m_recvQueueCondVar.wait_for(lock, std::chrono::milliseconds(timeout),
+                                    [this]{ return !this->m_recvQueue.empty(); })) {
+            nextResult = m_recvQueue.front();
+            m_recvQueue.pop_front();
+            return true;
+        } else {
+            timed_out = true;
+        }
+    } // release lock
+    return (timed_out == false);
+}
+
+void SerialPortWorker::getBytesAvailable() {
+    m_bytesAvailable += m_serialPort.bytesAvailable();
+}
+
+bool SerialPortWorker::getNumberOfBytesWritten(qint64 bytesWritten) {
+    if (bytesWritten > 0) {
+        m_bytesWritten += (uint32_t)bytesWritten;
+        return true;
+    }
+    return false;
+}
+

src/shared_mem_buffer.cpp

@@ -0,0 +1,123 @@
+#include "shared_mem_buffer.h"
+
+#include <QDebug>
+#include <QCoreApplication>
+#include <atomic>
+
+#ifdef QT_POSIX_IPC
+    // The POSIX backend can be explicitly selected using the -feature-ipc_posix
+    // option to the Qt configure script. If it is enabled, the QT_POSIX_IPC
+    // macro will be defined. -> we use SystemV shared memory
+#error "QT_POSIX_IPC defined"
+#else
+#include <sys/ipc.h>    // ftok
+#endif
+
+#ifdef __linux__
+#include <unistd.h>
+#endif
+
+#define PROCESS_SHARED (PTHREAD_PROCESS_SHARED)
+
+// std::atomic_bool SharedMemBuffer::__sharedMemLocked{false};
+
+QSharedMemory *SharedMemBuffer::getShm(std::size_t size) {
+    static QSharedMemory shMem;
+    if (size > 0) {
+        static const long nativeKey = ftok("/etc/os-release", 'H');
+        static const QString fkey = std::to_string(nativeKey).c_str();
+        shMem.setKey(fkey);
+        if (!shMem.isAttached()) {
+            if (shMem.create(size)) {
+                // the creator is the owner of the shared-memory segment
+                SharedMemBuffer *shm = (SharedMemBuffer *)(shMem.data());
+                if (shm) {
+                    shm->init = 0;
+                    // mark the shm
+                    memset(shm->appName, 0x00, sizeof(shm->appName));
+                    strncpy(shm->appName,
+                            QCoreApplication::applicationName().toLocal8Bit().constData(),
+                            sizeof(shm->appName)-1);
+                    shm->pid = getpid();
+
+                    // create condition variables plus associated mutexes for
+                    // sending/receiving commands to dc
+                    int r = 0;
+                    if ((r = pthread_mutexattr_init(&shm->sndMtxA)) != 0) {
+                        qCritical() << "init mutex attribute"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutexattr_setpshared(
+                                &shm->sndMtxA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "set s-mutex attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutex_init(&shm->sndMtx,
+                                                &shm->sndMtxA) != 0)) {
+                        qCritical() << "init s-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_init(&shm->sndCndA) != 0)) {
+                        qCritical() << "init s-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_setpshared(
+                                &shm->sndCndA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "init s-cond attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_cond_init(&shm->sndCndV,
+                                               &shm->sndCndA) != 0)) {
+                        qCritical() << "init s-condvar" << strerror(errno) << r;
+                    }
+
+                    if ((r = pthread_mutexattr_init(&shm->rcvMtxA)) != 0) {
+                        qCritical() << "init r-mutex attribute"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutexattr_setpshared(
+                                &shm->rcvMtxA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "set r-mutex attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutex_init(&shm->rcvMtx,
+                                                &shm->rcvMtxA) != 0)) {
+                        qCritical() << "init r-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_init(&shm->rcvCndA) != 0)) {
+                        qCritical() << "init r-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_setpshared(
+                                &shm->rcvCndA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "init r-cond attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_cond_init(&shm->rcvCndV,
+                                               &shm->rcvCndA) != 0)) {
+                        qCritical() << "init s-condvar" << strerror(errno) << r;
+                    }
+                    shm->init = 1;
+                }
+                return &shMem;
+            } else {
+                if (shMem.error() == QSharedMemory::AlreadyExists) {
+                    if (shMem.attach()) {
+                        return &shMem;
+                    }
+                }
+            }
+            qCritical() << shMem.nativeKey() << shMem.key() << shMem.data()
+                        << shMem.error() << shMem.errorString();
+            return nullptr;
+        }
+    }
+    return &shMem;
+}

src/tslib.cpp

@@ -76,6 +76,23 @@ uint8_t uint2uchar(uint16_t uival, bool getHighB)
 }
 
 
+uint8_t ulong2uchar(uint32_t ulval, uint8_t getBytNr)
+{
+    // getBytNr: 0=LSB  3=MSB
+    uint32_t ultmp=ulval;
+    if (getBytNr==0)
+        return uint8_t(ultmp);
+    ultmp>>=8;
+    if (getBytNr==1)
+        return uint8_t(ultmp);
+    ultmp>>=8;
+    if (getBytNr==2)
+        return uint8_t(ultmp);
+    ultmp>>=8;
+    return uint8_t(ultmp);
+
+}
+
 void delay(uint16_t MilliSec)
 {
     QThread::msleep(uint32_t(MilliSec));