Make sure the dc-data are vaild: set again the auto-request flag inside the CA-plugin.w

thread.

OnDemandUpdatePTU.pro

@@ -15,47 +15,111 @@ DEFINES += QT_DEPRECATED_WARNINGS
 # In order to do so, uncomment the following line.
 # You can also select to disable deprecated APIs only up to a certain version of Qt.
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
-VERSION=1.0.0
+
+# 1.3.6 :   Do not update device-controller/json files, but have the library
+#           (in a later step) do that.
+#           Fixed sending messages to ISMAS.
+#           Always execute contents of opkg_commands-file (even if there are no
+#           changes).
+# 1.3.7 :   Wait forever for git-commands to finish in QProcess executing such
+#           a command.
+# 1.3.8 :   Remove accessing opkg_commands under file-system-path /etc/psa_update.
+#           Activate download of json-configuration files.
+# 1.3.9 :   Fix sendLastVersion: use configured branch and not master branch in
+#               git show origin/master -s --format="c=%h m=%s d=%cI"    ==>
+#               git show origin/zg1/zone1 -s --format="c=%h m=%s d=%cI"
+#           Use dynamic values for os-release and apism-version when sending
+#           last version info.
+# 1.3.10:   Fix premature killing opkg-commands: detected timeout of 100s was
+#           too small when updating apism.
+#           Fix display of UPDATE_SUCCESS when opkg_command fails. Detected when
+#           updating apsim failed.
+# 1.3.11:   Integrate version of ATBUpdateTool in SendLastVersion-ISMAS-message.
+# 1.3.12:   Add command parameters for output of yocto-infos about ATBUpdateTool.
+#           Use 'git pull' instead of 'git fetch'.
+#           Use 'git clone --filter=blob:none' instead of 'git clone' to speed
+#           up cloning of customer repository.
+# 1.3.13:   Fix: if the customer repository is corrupted, remove it and re-clone
+#           the repository (without checking the ISMAS-trigger (WAIT-)button.
+# 1.3.14:   Add additional check for sanity of customer repository using
+#           "git fsck".
+#           Stream-lined code of update process: massive refactoring.
+#           Added functionality: If WAIT button is not active, then an existing
+#           customer repository will be repaired, or a not existing repository
+#           will be cloned. The process stops then.
+#           However, if the WAIT button is active, the at least the commands in
+#           opkg_commands will be executed. Changed files in the customer
+#           repository will be worked on: tariff-files will be synced with the
+#           local filesystem, json-files will be downloaded to firmware.
+#           The device-controller firmware will be handled in a later version.
+VERSION="1.3.15"
+#           Bug fixes found during testing.
+#           Don't disable Exit-button during update-process.
+#           Removed worker-thread with an own event-loop: only the GUI thread
+#           has an event loop. Tested JSON-downloads several times successfully
+#           (using the slave lib where the CA helper tool was active as master).
+#           Turned previous worker-object into its own thread, but without any
+#           own event-loop (so it cannot block anything inside the CA-plugin).
+
+# PLANNED TODOS:
+#   1:  Das Repository wird repariert bwz. neu geklont. Unabhaengig vom WAIT.
+#   2:  Wenn der WAIT-Button aktiv ist, dann wird ein Repository repariert (neu
+#       geklont), aber zusaetzlich werden alle verfuegbaren Dateien als neu
+#       angesehen und die entsprechenden Aktionen durchgefuehrt: tariff-files
+#       spiegeln, json-files laden und dc laden. Also VORSICHT: das repository
+#       muss in diesem fall wirklich in ordnung sein.
+#   3:  Wurde keine Datei geaendert, kein initiales Clone und der WAIT-button
+#       nicht aktiv, so (passiert natuerlich nichts) kann man davon ausgehen,
+#       dass es sich um ein automatisches Update handelt. Dann koennte man im
+#       ISMAS eine entsprechende Meldung anzeigen als Teil von SEND-LAST-VERSION.
+#       Wenn der WAIT-button aktiv ist, dann werden zumindest die opkg-commands
+#       ausgefuehrt.
+#   4:  rsync: immer alle Dateien soiegeln (bis auf opkg-commands)
+#   5:  Falls das Tool mal abstuerzt, dann einen Signal-Handler (fuer TERM)
+#       installieren, sodass zumnidest SEND-LAST-VERSION mit rausgeht.
+#   6:  rsync: explizites Binary, nicht das in busybox enthaltene.
+#   7:  Ein ini-File oder sowas.
+
+win32 {
+    BUILD_DATE=$$system("date /t")
+    BUILD_TIME=$$system("time /t")
+} else {
+    BUILD_DATE=$$system("date +%d-%m-%y")
+    BUILD_TIME=$$system("date +%H:%M:%S")
+}
+
+GIT_COMMIT=$$system("git log -1 --format=oneline | cut -d' ' -f1")
+
+EXTENDED_VERSION="$${VERSION}-$${GIT_COMMIT}"
 
 INCLUDEPATH += plugins
 
-CONFIG += c++17 console
+CONFIG += c++17
 # CONFIG -= app_bundle
 
 DEFINES+=APP_VERSION=\\\"$$VERSION\\\"
+DEFINES+=APP_BUILD_DATE=\\\"$$BUILD_DATE\\\"
+DEFINES+=APP_BUILD_TIME=\\\"$$BUILD_TIME\\\"
+DEFINES+=APP_EXTENDED_VERSION=\\\"$$EXTENDED_VERSION\\\"
 
+# keep comments, as /* fall through */
+QMAKE_CXXFLAGS += -C
 QMAKE_CXXFLAGS += -g
 QMAKE_CXXFLAGS += -Wno-deprecated-copy
 
-# custom target for 'git subtree'
-# subtree.target = subtree
-# subtree.commands = git subtree add --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash
-# subtree.depends =
-# QMAKE_EXTRA_UNIX_TARGETS += subtree
-
-# ! exists(DCPlugin) {
-#     $$system("git subtree add --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash")
-# } else {
-    # $$system("git subtree pull --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash")
-# }
-
-# You can make your code fail to compile if it uses deprecated APIs.
-# In order to do so, uncomment the following line.
-#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
-
 contains( CONFIG, PTU5 ) {
     greaterThan(QT_MAJOR_VERSION, 4): QT += serialport
     CONFIG += link_pkgconfig
     lessThan(QT_MAJOR_VERSION, 5):   PKGCONFIG += qextserialport
-    QMAKE_CXXFLAGS += -std=c++17   # for GCC >= 4.7
+    QMAKE_CXXFLAGS += -O2 -std=c++17   # for GCC >= 4.7
-    QMAKE_CXXFLAGS += -Wno-deprecated-copy
+    # QMAKE_CXXFLAGS += -Wno-deprecated-copy
     ARCH = PTU5
     DEFINES+=PTU5
 }
 contains( CONFIG, PTU5_YOCTO ) {
     greaterThan(QT_MAJOR_VERSION, 4): QT += serialport
     QMAKE_CXXFLAGS += -std=c++17   # for GCC >= 4.7
-    QMAKE_CXXFLAGS += -Wno-deprecated-copy
+    # QMAKE_CXXFLAGS += -Wno-deprecated-copy
     PTU5BASEPATH = /opt/devel/ptu5
     ARCH = PTU5
     DEFINES+=PTU5
@@ -69,7 +133,7 @@ contains( CONFIG, DesktopLinux ) {
     # QMAKE_CC = ccache $$QMAKE_CC
     # QMAKE_CXX = ccache $$QMAKE_CXX
     QMAKE_CXXFLAGS += -std=c++17
-    QMAKE_CXXFLAGS += -Wno-deprecated-copy
+    # QMAKE_CXXFLAGS += -Wno-deprecated-copy
     linux-clang {  QMAKE_CXXFLAGS += -Qunused-arguments   }
     ARCH = DesktopLinux
     DEFINES+=DesktopLinux
@@ -78,6 +142,7 @@ contains( CONFIG, DesktopLinux ) {
 SOURCES += \
         main.cpp \
         progress_event.cpp \
+        update_dc_event.cpp \
         mainwindow.cpp \
         utils.cpp \
         update.cpp \
@@ -85,12 +150,12 @@ SOURCES += \
         ismas/ismas_client.cpp \
         process/command.cpp \
         message_handler.cpp \
-        worker.cpp \
+        worker.cpp
-        worker_thread.cpp
 
 HEADERS += \
         update.h \
         progress_event.h \
+        update_dc_event.h \
         utils.h \
         mainwindow.h \
         git/git_client.h \
@@ -99,24 +164,11 @@ HEADERS += \
         process/command.h \
         message_handler.h \
         worker.h \
-        worker_thread.h \
         plugins/interfaces.h
 
 FORMS += \
     mainwindow.ui
 
-OTHER_FILES += \
-    /opt/app/tools/atbupdate/update_log.csv \
-    main.cpp.bck \
-    main.cpp.bck2 \
-    main.cpp.bck3
-
-# https://blog.developer.atlassian.com/the-power-of-git-subtree/?_ga=2-71978451-1385799339-1568044055-1068396449-1567112770
-# git subtree add --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash
-# git subtree pull --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash
-# include(./DCPlugin/DCPlugin.pri)
-
-
 
 ##########################################################################################
 # for running program on target through QtCreator

git/git_client.cpp

@@ -26,29 +26,93 @@ GitClient::GitClient(QString const &customerNrStr,
 }
 
 bool GitClient::gitCloneCustomerRepository() {
-    QString gitCommand("git clone ");
+    /*  Blobless clone
+        ==============
+
+        When using the --filter=blob:none option, the initial git clone will
+        download all reachable commits and trees, and only download the blobs
+        for commits when you do a git checkout. This includes the first checkout
+        inside the git clone operation.
+
+        The important thing to notice is that we have a copy of every blob at
+        HEAD but the blobs in the history are not present. If your repository
+        has a deep history full of large blobs, then this option can
+        significantly reduce your git clone times. The commit and tree data is
+        still present, so any subsequent git checkout only needs to download
+        the missing blobs. The Git client knows how to batch these requests to
+        ask the server only for the missing blobs.
+
+        Further, when running git fetch in a blobless clone, the server only
+        sends the new commits and trees. The new blobs are downloaded only
+        after a git checkout. Note that git pull runs git fetch and then git
+        merge, so it will download the necessary blobs during the git merge
+        command.
+
+        When using a blobless clone, you will trigger a blob download whenever
+        you need the contents of a file, but you will not need one if you only
+        need the OID (object-id) of a file. This means that git log can detect
+        which commits changed a given path without needing to download extra
+        data.
+
+        This means that blobless clones can perform commands like git
+        merge-base, git log, or even git log -- <path> with the same performance
+        as a full clone.
+
+        Commands like git diff or git blame <path> require the contents of the
+        paths to compute diffs, so these will trigger blob downloads the first
+        time they are run. However, the good news is that after that you will
+        have those blobs in your repository and do not need to download them a
+        second time. Most developers only need to run git blame on a small
+        number of files, so this tradeoff of a slightly slower git blame command
+        is worth the faster clone and fetch times.
+
+        Note: git v2.18 does not support treeless clones: --filter=tree:0.
+     */
+
+    // Note: for some reason it is necessary to pass "--progress ---v",
+    // otherwise QProcess returns an error of 128 = 0x80 for the command.
+
+    QString gitCommand("git clone --progress -vvv --filter=blob:none ");
     gitCommand += m_repositoryPath;
     Command c(gitCommand);
 
     qInfo() << "IN CURRENT WD" << m_workingDirectory
-            << "CLONE" << m_repositoryPath << "...";
+            << "CLONE VIA COMMAND" << gitCommand;
 
     if (c.execute(m_workingDirectory)) { // execute the command in wd
         QString const result = c.getCommandResult();
         if (!result.isEmpty()) {
             // Cloning into 'customer_281'...\n
-            static QRegularExpression re("(^\\s*Cloning\\s+into\\s+[']\\s*)(.*)(\\s*['].*$)");
+            int customer = -1;
-            QRegularExpressionMatch match = re.match(result);
+            int cloning = result.indexOf("Cloning", 0, Qt::CaseInsensitive);
-            if (match.hasMatch()) {
+            if (cloning != -1) {
-                if (re.captureCount() == 3) { // start with full match (0), then the other 3 matches
+                customer = result.indexOf("customer_", cloning, Qt::CaseInsensitive);
-                    if (match.captured(2).trimmed() == m_customerNr) {
+                if (customer != -1) {
+                    QString customerNr = result.mid(customer);
+                    static constexpr char const ch = '\'';
+                    int i = customerNr.indexOf(QChar(ch));
+                    if (i != -1) {
+                        if ((customerNr = customerNr.mid(0, i)) == m_customerNr) {
                             qInfo() << "CLONING" << m_repositoryPath << "OK";
                             return true;
                         }
+                        Utils::printCriticalErrorMsg(
+                            QString("ERROR CLONE RESULT HAS WRONG CUSTOMER-NR. (%1 != %2) CLONE_RESULT=%3")
+                                .arg(customerNr)
+                                .arg(m_customerNr)
+                                .arg(result));
+                        return false;
                     }
                 }
             }
-        Utils::printCriticalErrorMsg(QString("ERROR CLONE RESULT HAS WRONG FORMAT. CLONE_RESULT=") + result);
+            Utils::printCriticalErrorMsg(
+                QString("ERROR CLONE RESULT HAS WRONG FORMAT. CLONING=%1 CUSTOMER=%2 CLONE_RESULT=%3")
+                    .arg(cloning)
+                    .arg(customer)
+                    .arg(result));
+            return false;
+        }
+        Utils::printCriticalErrorMsg("ERROR CLONE RESULT IS EMPTY");
     }
     return false;
 }
@@ -114,6 +178,53 @@ bool GitClient::gitCloneAndCheckoutBranch() {
     return false;
 }
 
+QStringList GitClient::gitShowReason(QString branchName) {
+    QStringList lst;
+    if (QDir(m_customerRepository).exists()) {
+        // %h: commit (short form)
+        // %s: commit message
+        // %cI: commit date, strict ISO 8601 format
+        // Note: branch with branchName has to exist: format zg1/zone1
+        Command c(QString("git show origin/%1 -s --format=\"c=%h m=%s d=%cI\"").arg(branchName));
+        if (c.execute(m_customerRepository)) {
+            QString const s = c.getCommandResult().trimmed();
+            int const c = s.indexOf("c=");
+            int const m = s.indexOf("m=");
+            int const d = s.indexOf("d=");
+
+            QString msg = IsmasClient::getReasonForLastSendVersion();
+            QString commit{""}, date{""};
+
+            if (c != -1) {
+                int start = c + 2;
+                if (m >= start) {
+                    int length = m - start;
+                    commit = s.mid(start, length).trimmed();
+
+                    start = m + 2;
+                    if (d >= start) {
+                        length = d - start;
+                        msg += " (";
+                        msg = s.mid(start, length).trimmed();
+                        msg += ")";
+
+                        start = d + 2;
+                        date = s.mid(start);
+                    }
+                }
+
+                if (!commit.isEmpty() && !msg.isEmpty() && !date.isEmpty()) {
+                    lst << commit << msg << date;
+                }
+            }
+        }
+    } else {
+        qCritical() << "CUSTOMER_REPOSITORY" << m_customerRepository
+                    << "DOES NOT EXIST";
+    }
+    return lst;
+}
+
 /*
  Zu beachten: wird eine datei neu hinzugefuegt (git add/commit) dann aber gleich
  wieder geloscht, so wird sie im diff nicht angezeigt.
@@ -168,19 +279,34 @@ std::optional<QStringList> GitClient::gitDiff(QString const &commits) {
     return std::nullopt;
 }
 
+bool GitClient::gitFsck() {
+    bool r = false;
+    if (QDir(m_customerRepository).exists()) {
+        Command c("git fsck");
+        if ((r = c.execute(m_customerRepository)) == false) {
+            QString const &s = c.getCommandResult().trimmed();
+            Utils::printCriticalErrorMsg(QString("GIT FSCK FAILED: %1").arg(s));
+        }
+    }
+    return r;
+}
 /*
  Hat sich nichts geaendert, so werden auch keine Commits <>..<> angezeigt
  */
-std::optional<QString> GitClient::gitFetch() {
+std::optional<QString> GitClient::gitPull() {
     if (QDir(m_customerRepository).exists()) {
         qInfo() << "BRANCH NAME" << m_branchName;
 
-        Command c("git fetch");
+        Command c("git pull");
         if (c.execute(m_customerRepository)) {
             QString const s = c.getCommandResult().trimmed();
             if (!s.isEmpty()) {
                 QStringList lines = Update::split(s, '\n');
+                worker()->CONSOLE(lines) << Worker::UPDATE_STEP::UPDATE_REPOSITORY;
                 if (!lines.empty()) {
+                    static const QRegularExpression alreadyUpToDate("^\\s*Already\\s+up\\s+to\\s+date.*$");
+                    if (std::none_of(lines.cbegin(), lines.cend(),
+                        [](QString const &s) { return s.contains(alreadyUpToDate); })) {
                         int zoneNr = Utils::read1stLineOfFile("/mnt/system_data/zone_nr");
                         m_branchName = (zoneNr != 0) ? QString("zg1/zone%1").arg(zoneNr) : "master";
                         // lines can look like this:
@@ -199,61 +325,42 @@ std::optional<QString> GitClient::gitFetch() {
                                 QRegularExpressionMatch match = re.match(lines.at(i));
                                 if (match.hasMatch()) {
                                     if (re.captureCount() == 3) { // start with full match (0), then the other 3 matches
-                                    return match.captured(2);
+                                        QString const matchCaptured = match.captured(2);
+                                        worker()->CONSOLE(QStringList(matchCaptured)) << Worker::UPDATE_STEP::UPDATE_REPOSITORY;
+                                        return matchCaptured;
                                     } else {
-                                    emit m_worker->showErrorMessage("git fetch",
+                                        QStringList lst(QString("(wrong capture count (%1)").arg(re.captureCount()));
-                                        QString("(wrong cap-count (%1)").arg(re.captureCount()));
+                                        worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
                                     }
                                 } else {
-                                emit m_worker->showErrorMessage("git fetch",
+                                    QStringList lst("no regex-match for commits");
-                                    "no regex-match for commits");
+                                    worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
-                                Utils::printCriticalErrorMsg("NO REGEX MATCH FOR COMMITS");
                                 }
                             }
                         }
                         if (!found) {
-                        emit m_worker->showErrorMessage("git fetch",
+                            QStringList lst(QString("unknown branch name ") + m_branchName);
-                            QString("unkown branch name ") + m_branchName);
+                            worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
-                        Utils::printCriticalErrorMsg("UNKNOWN BRANCH NAME " + m_branchName);
                         }
                     } else {
-                    emit m_worker->showErrorMessage("git fetch",
+                        return "Already up to date";
-                        QString("wrong format for result of 'git fetch' ") + s);
-                    Utils::printCriticalErrorMsg(QString("WRONG FORMAT FOR RESULT OF 'GIT FETCH' ") + s);
                     }
                 } else {
-                emit m_worker->showErrorMessage("git fetch", "empty result for 'git fetch'");
+                    QStringList lst(QString("WRONG FORMAT FOR RESULT OF 'GIT PULL' ") + s);
-                Utils::printCriticalErrorMsg("EMPTY RESULT FOR 'GIT FETCH'");
+                    worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+                }
+            } else {
+                QStringList lst("EMPTY RESULT FOR 'GIT PULL'");
+                worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
             }
         }
     } else {
-        emit m_worker->showErrorMessage("git fetch", QString("repository ") + m_customerRepository + " does not exist");
+        QStringList lst(QString("REPOSITORY ") + m_customerRepository + " DOES NOT EXIST");
-        Utils::printCriticalErrorMsg(QString("REPOSITORY ") + m_customerRepository + " DOES NOT EXIST");
+        worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
     }
     return std::nullopt;
 }
 
-bool GitClient::gitFetchAndDiff() {
-    if (gitFetch()) {
-        QString gitCommand("git diff --compact-summary HEAD..FETCH_HEAD");
-        Command c(gitCommand);
-        return c.execute(m_workingDirectory);
-    }
-    return false;
-}
-
-bool GitClient::gitPull() {
-    if (QDir(m_customerRepository).exists()) {
-        Command c("git pull");
-        if (c.execute(m_customerRepository)) {
-            qInfo() << "PULLED INTO" << m_customerRepository;
-            return true;
-        }
-        Utils::printCriticalErrorMsg(QString("PULL INTO " + m_customerRepository + " FAILED"));
-    }
-    return false;
-}
-
 std::optional<QStringList> GitClient::gitMerge() {
     Command c("git merge");
     if (c.execute(m_workingDirectory)) {
@@ -289,7 +396,7 @@ QString GitClient::gitBlob(QString fileName) {
     if (fi.exists()) {
         QString const gitCommand = QString("git hash-object %1").arg(fileName);
         Command c(gitCommand);
-        if (c.execute(m_workingDirectory)) {
+        if (c.execute("/tmp")) {
             return c.getCommandResult().trimmed();
         }
     }

git/git_client.h

@@ -43,14 +43,18 @@ class GitClient : public QObject {
 
     bool gitCloneAndCheckoutBranch();
 
-    std::optional<QString> gitFetch();
+    Worker *worker() { return m_worker; }
-    bool gitFetchAndDiff();
+    Worker const *worker() const { return m_worker; }
-    bool gitPull();
+
+    std::optional<QString> gitPull();
     std::optional<QStringList> gitDiff(QString const &commit);
     std::optional<QStringList> gitMerge();
 
+    bool gitFsck();
+
     QString gitLastCommit(QString fileName);
-    QString gitBlob(QString fileName);
+    QStringList gitShowReason(QString branchName);
+    static QString gitBlob(QString fileName);
     QString gitCommitForBlob(QString blob);
     bool gitIsFileTracked(QString file2name);
 };

ismas/ismas_client.cpp

@@ -1,4 +1,5 @@
 #include "ismas/ismas_client.h"
+#include "utils.h"
 
 #include <cstring>
 #include <cstdio>
@@ -22,6 +23,15 @@
 #include <QJsonObject>
 
 #if 0
+########################
+# Spec vom 27.10.2023:
+# U0010 -> %-Werte
+# U0001 -> 100%
+# U0003 -> "FAIL"
+# U0002 -> "" (OK -> WAIT state reset)
+# ISMAS -> "WAIT"
+########################
+#
 # $1: EVENT: U0001 update finished: 100%
 #            U0002 reset TRG
 #            U0003 error
@@ -46,6 +56,12 @@ void IsmasClient::printDebugMessage(int port,
                                     QString const &clientIP,
                                     int clientPort,
                                     QString const &message) {
+#if 0
+    Q_UNUSED(port);
+    Q_UNUSED(clientIP);
+    Q_UNUSED(clientPort);
+    Q_UNUSED(message);
+#else
     qDebug().noquote()
         << "\n"
         << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
@@ -54,12 +70,19 @@ void IsmasClient::printDebugMessage(int port,
         << "local address ..." << clientIP << "\n"
         << "local port ......" << clientPort << "\n"
         << message;
+#endif
 }
 
 void IsmasClient::printInfoMessage(int port,
                                    QString const &clientIP,
                                    int clientPort,
                                    QString const &message) {
+#if 0
+    Q_UNUSED(port);
+    Q_UNUSED(clientIP);
+    Q_UNUSED(clientPort);
+    Q_UNUSED(message);
+#else
     qInfo().noquote()
         << "\n"
         << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
@@ -68,6 +91,7 @@ void IsmasClient::printInfoMessage(int port,
         << "local address ..." << clientIP << "\n"
         << "local port ......" << clientPort << "\n"
         << message;
+#endif
 }
 
 void IsmasClient::printErrorMessage(int port,
@@ -137,7 +161,12 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
     so_linger.l_onoff = 1;
     so_linger.l_linger = 0;
 
+    int maxfdp1;
+    fd_set rset;
+    fd_set wset;
+
     setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &so_linger, sizeof(so_linger));
+    // no reliable, but does not harm, as we use select() as well
     setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
     setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
     int flag = 1;
@@ -151,6 +180,37 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
     int loop = 0;
     int bytesWritten = 0;
     while (bytesWritten < bytesToWrite) {
+        errno = 0;
+        FD_ZERO(&wset);
+        FD_SET(sockfd, &wset);
+        maxfdp1 = sockfd + 1;
+        tv.tv_sec = 60;  /* 60 secs timeout for read and write -> APISM cuts the connection after 30s */
+        tv.tv_usec = 0;
+
+        int const w = select(maxfdp1, NULL, &wset, NULL, &tv);
+        if (w < 0) { // error
+            if (errno == EINTR) {
+                printErrorMessage(port, clientIP, clientPort,
+                    QString("INTERRUPTED BY SIGNAL (1) (") + strerror(errno) + ")");
+                continue;
+            } else {
+                printErrorMessage(port, clientIP, clientPort,
+                        QString("SELECT-ERROR (WRITE) %1(").arg(loop) + strerror(errno) + ")");
+                ::close(sockfd);
+                return std::nullopt;
+            }
+        } else
+        if (w == 0) { // timeout
+            printErrorMessage(port, clientIP, clientPort,
+                    QString("SELECT-TIMEOUT (WRITE) %1(").arg(loop) + strerror(errno) + ")");
+            if (++loop < 10) {
+                QThread::msleep(500);
+                continue;
+            }
+            ::close(sockfd);
+            return std::nullopt;
+        } else
+        if (w > 0) {
             int n = ::sendto(sockfd, buf+bytesWritten, bytesToWrite-bytesWritten, 0, NULL, 0);
             if (n >= 0) {
                 bytesWritten += n;
@@ -172,6 +232,7 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
                 }
             }
         }
+    }
 
     // DO NOT USE SHUTDOWN! APISM CAN NOT COPE WITH IT
     // errno = 0;
@@ -180,7 +241,7 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
     //        QString("CANNOT CLOSE WRITING END (") + strerror(errno) + ")");
     // }
 
-    printInfoMessage(port, clientIP, clientPort, QString("MESSAGE SENT ") + buf);
+    printInfoMessage(port, clientIP, clientPort, QString("MESSAGE SENT <<<") + buf + ">>>");
 
     loop = 0;
     bzero(buf, sizeof(buf));
@@ -188,6 +249,39 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
     int bytesRead = 0;
     while (bytesRead < bytesToRead) {
         errno = 0;
+        FD_ZERO(&rset);
+        FD_SET(sockfd, &rset);
+        maxfdp1 = sockfd + 1;
+        tv.tv_sec = 60;  /* 60 secs timeout for read and write */
+        tv.tv_usec = 0;
+
+        QString const selectStart = QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+
+        int const r = select(maxfdp1, &rset, NULL, NULL, &tv);
+        if (r < 0) { // error
+            if (errno == EINTR) {
+                printErrorMessage(port, clientIP, clientPort,
+                    QString("INTERRUPTED BY SIGNAL (2) (") + strerror(errno) + ")");
+                continue;
+            } else {
+                printErrorMessage(port, clientIP, clientPort,
+                        QString("SELECT-ERROR (READ) %1(").arg(loop) + strerror(errno) + ")");
+                ::close(sockfd);
+                return std::nullopt;
+            }
+        } else
+        if (r == 0) { // timeout
+            printErrorMessage(port, clientIP, clientPort,
+                    QString("SELECT-TIMEOUT (READ) %1(").arg(loop) + strerror(errno) + ")");
+            if (++loop < 10) {
+                QThread::msleep(500);
+                continue;
+            }
+            ::close(sockfd);
+            return std::nullopt;
+        } else
+        if (r > 0) {
+            if (FD_ISSET(sockfd, &rset)) {
                 int n = ::recvfrom(sockfd, buf+bytesRead, bytesToRead-bytesRead,
                                    0, NULL, NULL);
                 if (n > 0) { //
@@ -196,12 +290,13 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
                 if (n == 0) {
                     // The return value will be 0 when the peer has performed an orderly shutdown.
                     printErrorMessage(port, clientIP, clientPort,
-                QString("PEER CLOSED CONNECTION (") + strerror(errno) + ")");
+                        QString("PEER CLOSED CONNECTION (") + strerror(errno) + ") START AT" +
+                                selectStart + " NOW " + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
                     ::close(sockfd);
                     return std::nullopt;
                 } else
                 if (n < 0) {
-            if (errno == EWOULDBLOCK) {
+                    if (errno == EWOULDBLOCK) { // check just in case
                         if (++loop < 10) {
                             QThread::msleep(500);
                             continue;
@@ -217,8 +312,10 @@ IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
                         continue;
                     }
                 }
+            }
+        }
 
-        printInfoMessage(port, clientIP, clientPort, QString("MESSAGE RECEIVED ") + buf);
+        // printInfoMessage(port, clientIP, clientPort, QString("MESSAGE RECEIVED ") + buf);
         QString response(buf);
 
         if (int idx = response.indexOf("{\"error\":\"ISMAS is offline\"}")) {
@@ -293,16 +390,18 @@ QString IsmasClient::errorBackendNotConnected(QString const &info,
                              version.toStdString().c_str());
 }
 
-QString IsmasClient::errorGitClone(int percent, QString const &info, QString const &version) {
+QString IsmasClient::errorGitClone(QString const &info,
+                                   QString const &version) {
     return updateNewsToIsmas("U0003",
-                             percent,
+                             m_progressInPercent,
                              RESULT_CODE::INSTALL_ERROR,
                              "CLONE CUSTOMER REPOSITORY FAILED",
                              info.toStdString().c_str(),
                              version.toStdString().c_str());
 }
 
-QString IsmasClient::backendConnected(QString const &info, QString const &version) {
+QString IsmasClient::backendConnected(QString const &info,
+                                      QString const &version) {
     return updateNewsToIsmas("U0010",
                              m_progressInPercent,
                              RESULT_CODE::SUCCESS,
@@ -311,7 +410,8 @@ QString IsmasClient::backendConnected(QString const &info, QString const &versio
                              version.toStdString().c_str());
 }
 
-QString IsmasClient::execOpkgCommand(QString const &info, QString const &version) {
+QString IsmasClient::execOpkgCommand(QString const &info,
+                                     QString const &version) {
     return updateNewsToIsmas("U0010",
                              m_progressInPercent,
                              RESULT_CODE::SUCCESS,
@@ -320,6 +420,15 @@ QString IsmasClient::execOpkgCommand(QString const &info, QString const &version
                              version.toStdString().c_str());
 }
 
+QString IsmasClient::rsyncFile(QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "RSYNC FILE",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
 QString IsmasClient::updateTriggerSet(QString const &info, QString const &version) {
     return updateNewsToIsmas("U0010",
                              m_progressInPercent,
@@ -345,13 +454,11 @@ QString IsmasClient::updateOfPSASendVersion(PSAInstalled const &psa) {
     static char buf[4096*2];
     memset(buf, 0, sizeof(buf));
 
-    QString const ts = QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
-    QString sendVersionHash = "N/A";
-
     // local data="#M=APISM#C=CMD_SENDVERSION#J=
     snprintf(buf, sizeof(buf)-1,
         "{"
             "\"VERSION_INFO\" : {"
+                "\"REASON\":\"%s\","
                 "\"CREATED\":\"%s\","
                 "\"HASH\":\"%s\""
             "},"
@@ -361,6 +468,13 @@ QString IsmasClient::updateOfPSASendVersion(PSAInstalled const &psa) {
                 "\"ZONE\" : %d,"
                 "\"INFO\" : \"%s\","
                 "\"BLOB\" : \"%s\","
+                "\"LAST-COMMIT\" : \"%s\","
+                "\"SIZE\" : %d,"
+                "\"LOADED\" : \"%s\""
+            "},"
+            "\"OPKG_COMMANDS\" : {"
+                "\"BLOB\" : \"%s\","
+                "\"LAST-COMMIT\" : \"%s\","
                 "\"SIZE\" : %d,"
                 "\"LOADED\" : \"%s\""
             "},"
@@ -529,10 +643,14 @@ QString IsmasClient::updateOfPSASendVersion(PSAInstalled const &psa) {
                 "}"
             "},"
             "\"SOFTWARE\": {"
-                "\"RAUC\" : \"%s\","
+                "\"APISM\" : {"
-                "\"OPKG\" : \"%s\","
+                    "\"VERSION\" : \"%s\""
+                "},"
                 "\"ATBQT\" : {"
                     "\"VERSION\" : \"%s\""
+                "},"
+                "\"ATB-UPDATE-TOOL\" : {"
+                    "\"VERSION\" : \"%s\""
                 "}"
             "},"
             "\"PLUGINS\" : {"
@@ -559,17 +677,24 @@ QString IsmasClient::updateOfPSASendVersion(PSAInstalled const &psa) {
                 "}"
             "}"
         "}",
-        ts.toStdString().c_str(),
+        psa.versionInfo.reason.toStdString().c_str(),
-        sendVersionHash.toStdString().c_str(),
+        psa.versionInfo.created.toStdString().c_str(),
+        psa.versionInfo.lastCommit.toStdString().c_str(),
 
         psa.tariff.version.toStdString().c_str(),
         psa.tariff.project.toStdString().c_str(),
         psa.tariff.zone,
         psa.tariff.info.toStdString().c_str(),
         psa.tariff.blob.toStdString().c_str(),
+        psa.tariff.lastCommit.toStdString().c_str(),
         psa.tariff.size,
         psa.tariff.loadTime.toStdString().c_str(),
 
+        psa.opkg.blob.toStdString().c_str(),
+        psa.opkg.lastCommit.toStdString().c_str(),
+        psa.opkg.size,
+        psa.opkg.loadTime.toStdString().c_str(),
+
         psa.cash.blob.toStdString().c_str(),
         psa.cash.size,
         psa.conf.blob.toStdString().c_str(),
@@ -651,9 +776,9 @@ QString IsmasClient::updateOfPSASendVersion(PSAInstalled const &psa) {
         psa.dc.gitBlob.toStdString().c_str(),
         psa.dc.gitLastCommit.toStdString().c_str(),
 
-        psa.sw.raucVersion.toStdString().c_str(),
+        psa.sw.apismVersion.toStdString().c_str(),
-        psa.sw.opkgVersion.toStdString().c_str(),
         psa.sw.atbQTVersion.toStdString().c_str(),
+        psa.sw.atbUpdateToolVersion.toStdString().c_str(),
 
         psa.pluginVersion.deviceController.toStdString().c_str(),
         psa.pluginVersion.ingenicoISelfCC.toStdString().c_str(),
@@ -735,7 +860,7 @@ QString IsmasClient::updateOfPSAActivated(QString const &version) {   // sent ev
 }
 
 QString IsmasClient::updateOfPSASucceeded(QString const &version) {
-    m_progressInPercent = 0;
+    m_progressInPercent = 100;
     return updateNewsToIsmas("U0001",
                              m_progressInPercent,
                              RESULT_CODE::SUCCESS,
@@ -762,14 +887,21 @@ QString IsmasClient::jsonParseFailed(int resultCode, QString reason, QString con
                              version.toStdString().c_str());
 }
 
-std::optional<QString> IsmasClient::finalResult(int resultCode, QString reason, QString const &version) {
+std::optional<QString> IsmasClient::finalResult(int resultCode,
-    m_progressInPercent = 0;
+                                                QString reason,
+                                                QString const &version) {
+    Q_UNUSED(resultCode);
+    Q_UNUSED(reason);
+    Q_UNUSED(version);
+
+    /*
+    m_progressInPercent = 100;
     if (resultCode == RESULT_CODE::SUCCESS) {
         return updateNewsToIsmas("U0002",
                                  m_progressInPercent,
-                                 RESULT_CODE::SUCCESS,
+                                 resultCode,
                                  "FINAL-UPDATE-RESULT",
-                                 "(re-)set WAIT state",
+                                 reason.toStdString().c_str(),
                                  version.toStdString().c_str());
     }
     if (resultCode == RESULT_CODE::INSTALL_ERROR) {
@@ -780,6 +912,7 @@ std::optional<QString> IsmasClient::finalResult(int resultCode, QString reason,
                                  reason.toStdString().c_str(),
                                  version.toStdString().c_str());
     }
+    */
     return std::nullopt;
 }
 
@@ -792,3 +925,18 @@ QString IsmasClient::updateOfPSAFailed(int resultCode, QString step,
                              reason.toStdString().c_str(),
                              version.toStdString().c_str());
 }
+
+char const *IsmasClient::reason[REASON::ENTRIES] = {
+    "TIME-TRIGGERED", "SERVICE", "DEV-TEST"
+};
+
+QString IsmasClient::getReasonForLastSendVersion() {
+    QString const &parentName = Utils::getParentName();
+    if (parentName == "ATBQT") {
+        return reason[REASON::SERVICE];
+    }
+    if (parentName == "systemd") {
+        return reason[REASON::TIME_TRIGGERED];
+    }
+    return reason[REASON::DEV_TEST];
+}

ismas/ismas_client.h

@@ -7,6 +7,12 @@
 #include <optional>
 
 struct PSAInstalled {
+    struct VersionInfo {
+        QString created;
+        QString reason;
+        QString lastCommit;
+    } versionInfo;
+
     struct Tariff {
         QString name;
         QString version;
@@ -24,6 +30,13 @@ struct PSAInstalled {
         QString cpuSerial;
     } hw;
 
+    struct Opkg {
+        int size;
+        QString blob;
+        QString lastCommit;
+        QString loadTime;
+    } opkg;
+
     struct DC {
         QString versionHW;
         QString versionSW;
@@ -33,9 +46,9 @@ struct PSAInstalled {
     } dc;
 
     struct SoftWare {
-        QString raucVersion;
+        QString apismVersion;
-        QString opkgVersion;
         QString atbQTVersion;
+        QString atbUpdateToolVersion;
     } sw;
 
     struct PluginVersion {
@@ -73,15 +86,20 @@ struct PSAInstalled {
         hw.linuxVersion = "N/A";
         hw.cpuSerial = "N/A";
 
+        opkg.size = -1;
+        opkg.blob = "N/A";
+        opkg.lastCommit = "N/A";
+        opkg.loadTime = "N/A";
+
         dc.versionHW = "N/A";
         dc.versionSW = "N/A";
         dc.gitBlob = "N/A";
         dc.gitLastCommit = "N/A";
         dc.size = -1;
 
-        sw.raucVersion = "N/A";
+        sw.apismVersion = "N/A";
-        sw.opkgVersion = "N/A";
         sw.atbQTVersion = "N/A";
+        sw.atbUpdateToolVersion = "N/A";
 
         pluginVersion.deviceController = "N/A";
         pluginVersion.ingenicoISelfCC = "N/A";
@@ -123,6 +141,7 @@ public:
         DIRECT_PORT = 7778
     };
 
+
     enum RESULT_CODE {
         SUCCESS=0,
         NO_UPDATE_NECESSARY=1,
@@ -130,9 +149,20 @@ public:
         WRONG_PACKAGE=3,
         INSTALL_ERROR=4};
 
+    enum REASON {
+        TIME_TRIGGERED = 0,
+        SERVICE,
+        DEV_TEST,
+        ENTRIES
+    };
+
+    static char const *reason[REASON::ENTRIES];
+
     static std::optional<QString>
         sendRequestReceiveResponse(int port, QString const &request);
 
+    static QString getReasonForLastSendVersion();
+
     int getProgressInPercent() const {return m_progressInPercent; }
     void setProgressInPercent(int procent) { m_progressInPercent = procent; }
 
@@ -147,12 +177,13 @@ public:
     QString cloneAndCheckoutCustomerRepository(QString const &info, QString const &version = QString());   // clone and checkout customer repository
     QString checkoutBranch(QString const &info, QString const &version = QString());   // checkout branch
     QString errorBackendNotConnected(QString const &info, QString const &version = QString());   // checkout branch
-    QString errorGitClone(int percent, QString const &info, QString const &version = QString());
+    QString errorGitClone(QString const &info, QString const &version = QString());
     QString backendConnected(QString const &info, QString const &version = QString());
     QString updateTriggerSet(QString const &info, QString const &version = QString());
     QString errorUpdateTrigger(QString const &info, QString const &version = QString());
     QString gitFetch(QString const &info, QString const &version = QString());
     QString execOpkgCommand(QString const &info, QString const &version = QString());
+    QString rsyncFile(QString const &info, QString const &version = QString());
     QString errorGitFetch(int resultCode, QString const &info, QString const &version = QString());
     QString updateOfPSAActivated(QString const &version = QString());
                                     // and update accepted

main.cpp

@@ -31,6 +31,13 @@
 #include "utils.h"
 
 #include <QThread>
+#include <QtWidgets>
+#include <QScopedPointer>
+
+#if defined (Q_OS_UNIX) || defined (Q_OS_LINUX)
+#include <unistd.h>
+#include <errno.h>
+#endif
 
 #ifdef PTU5
 #define SERIAL_PORT "ttymxc2"
@@ -65,21 +72,25 @@ int main(int argc, char *argv[]) {
     QCommandLineOption pluginDirectoryOption(QStringList() << "plugin-directory" << "plugin-directory",
         QCoreApplication::translate("main", "Where to find dc-plugin."),
         QCoreApplication::translate("main", "directory"));
-    QString const pluginDefault = "./plugins";
+    QString const pluginDefault = "/usr/lib";
     pluginDirectoryOption.setDefaultValue(pluginDefault);
     parser.addOption(pluginDirectoryOption);
 
     QCommandLineOption pluginNameOption(QStringList() << "plugin-name" << "plugin-name",
         QCoreApplication::translate("main", "Name of dc-plugin."),
         QCoreApplication::translate("main", "directory"));
-    QString const pluginNameDefault = "libCAmaster.so";
+    QString const pluginNameDefault = "libCAslave.so";
     pluginNameOption.setDefaultValue(pluginNameDefault);
     parser.addOption(pluginNameOption);
 
+    QCommandLineOption noDownloadOption("no-psa-hardware-update",
+        QCoreApplication::translate("main", "Do not update the PSA firmware (json, device-controller)."));
+    parser.addOption(noDownloadOption);
+
     QCommandLineOption workingDirectoryOption(QStringList() << "working-directory" << "working-directory",
         QCoreApplication::translate("main", "working directory of update-script."),
         QCoreApplication::translate("main", "directory"));
-    QString const workingDirectoryDefault = ".";
+    QString const workingDirectoryDefault = "/opt/app/tools/atbupdate";
     workingDirectoryOption.setDefaultValue(workingDirectoryDefault);
     parser.addOption(workingDirectoryOption);
 
@@ -87,47 +98,30 @@ int main(int argc, char *argv[]) {
         QCoreApplication::translate("main", "Start ATBUpdateTool in dry-run-mode. No actual actions."));
     parser.addOption(dryRunOption);
 
-    // TODO:
+    QCommandLineOption extendedVersionOption(QStringList() << "V" << "extended-version",
-    // add some additional parameters
+        QCoreApplication::translate("main", "Show extended version (including last git commit)."));
-    // --dry-run
+    parser.addOption(extendedVersionOption);
-    // -d: only update device-controller firmware
+
-    // -j: only update json-files
+    QCommandLineOption yoctoVersionOption(QStringList() << "y" << "yocto-version",
-    // -o: only execute opkg-commnds
+        QCoreApplication::translate("main", "Show yocto version of ATBUpdateTool."));
-    // -f: force. update_psa shall always perform a 'git pull'
+    parser.addOption(yoctoVersionOption);
+
+    QCommandLineOption yoctoInstallStatusOption(QStringList() << "Y" << "yocto-install",
+        QCoreApplication::translate("main", "Show yocto install status of ATBUpdateTool."));
+    parser.addOption(yoctoInstallStatusOption);
 
     // Process the actual command line arguments given by the user
     parser.process(a);
     QString plugInDir = parser.value(pluginDirectoryOption);
     QString plugInName = parser.value(pluginNameOption);
     QString workingDir = parser.value(workingDirectoryOption);
-    bool dryRun = parser.isSet(dryRunOption);
+    bool const dryRun = parser.isSet(dryRunOption);
+    bool const noUpdatePsaHardware = parser.isSet(noDownloadOption);
+    bool const showYoctoVersion = parser.isSet(yoctoVersionOption);
+    bool const showYoctoInstallStatus = parser.isSet(yoctoInstallStatusOption);
+    bool const showExtendedVersion = parser.isSet(extendedVersionOption);
     QString const rtPath = QCoreApplication::applicationDirPath();
 
-    if (plugInDir == pluginDefault) {
-        plugInDir = (rtPath + "/" + pluginDefault);
-    }
-    if (!QDir(plugInDir).exists()) {
-        qCritical() << plugInDir
-                    << "does not exists, but has to contain dc-library";
-        exit(-1);
-    }
-
-    qInfo() << "pwd ..............." << rtPath;
-    qInfo() << "plugInDir ........." << plugInDir;
-    qInfo() << "plugInName ........" << plugInName;
-    qInfo() << "workingDir ........" << workingDir;
-    qInfo() << "dryRun ............" << dryRun;
-
-    // before loading the library, delete all possible shared memory segments
-#if defined Q_OS_LINUX || defined Q_OS_UNIX
-    // system("rm -rf /tmp/qipc*");
-#else
-#error "Only tested under UNIX/LINUX"
-#endif
-
-    hwinf *hw = Update::loadDCPlugin(QDir(plugInDir), plugInName);
-    // hw->dc_autoRequest(false);
-
     int machineNr = Utils::read1stLineOfFile("/etc/machine_nr");
     int customerNr = Utils::read1stLineOfFile("/etc/cust_nr");
     int zoneNr = Utils::read1stLineOfFile("/etc/zone_nr");
@@ -137,20 +131,59 @@ int main(int argc, char *argv[]) {
     QThread::currentThread()->setObjectName("main thread");
     qInfo() << "Main thread" << QThread::currentThreadId();
 
-    Worker worker(hw,
+    if (showExtendedVersion) {
-                  customerNr,
+        printf(APP_EXTENDED_VERSION"\n");
+        return 0;
+    }
+
+    if (showYoctoVersion) {
+        printf("%s\n", Worker::getATBUpdateToolYoctoVersion().toStdString().c_str());
+        return 0;
+    }
+
+    if (showYoctoInstallStatus) {
+        printf("%s\n", Worker::getATBUpdateToolYoctoInstallationStatus().toStdString().c_str());
+        return 0;
+    }
+
+    if (!QDir(plugInDir).exists()) {
+        qCritical() << plugInDir
+                    << "does not exists, but has to contain dc-library";
+        exit(-1);
+    }
+
+    qInfo() << "pwd ......................" << rtPath;
+    qInfo() << "plugInDir ................" << plugInDir;
+    qInfo() << "plugInName ..............." << plugInName;
+    qInfo() << "workingDir ..............." << workingDir;
+    qInfo() << "dryRun ..................." << dryRun;
+    qInfo() << "noUpdatePsaHardware ......" << noUpdatePsaHardware;
+    qInfo() << "extended-version ........." << APP_EXTENDED_VERSION;
+    //qInfo() << "yocto-version ............" << Worker::getATBUpdateToolYoctoVersion();
+    //qInfo() << "yocto-install-status ....." << Worker::getATBUpdateToolYoctoInstallationStatus();
+
+    // before loading the library, delete all possible shared memory segments
+#if defined Q_OS_LINUX || defined Q_OS_UNIX
+    // system("rm -rf /tmp/qipc*");
+#else
+#error "Only tested under UNIX/LINUX"
+#endif
+
+    Worker worker(customerNr,
                   machineNr,
                   zoneNr,
                   branchName,
+                  plugInDir,
+                  plugInName,
                   workingDir,
+                  noUpdatePsaHardware,
                   dryRun);
 
     MainWindow mw(&worker);
     worker.setMainWindow(&mw);
 
     mw.setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
-    mw.setWindowState(Qt::WindowFullScreen);
+    mw.showFullScreen();
-    mw.show();
 
     return a.exec();
 }

mainwindow.cpp

@@ -3,10 +3,15 @@
 #include "worker.h"
 #include "utils.h"
 #include "progress_event.h"
+#include "update_dc_event.h"
+#include "plugins/interfaces.h"
 
 #include <QDateTime>
 #include <QMessageBox>
 #include <QDebug>
+#include <QScrollBar>
+#include <QEvent>
+
 
 MainWindow::MainWindow(Worker *worker, QWidget *parent)
     : QMainWindow(parent)
@@ -14,7 +19,16 @@ MainWindow::MainWindow(Worker *worker, QWidget *parent)
     , m_worker(worker)
     , m_width(70)
     , m_progressRunning(false)
-    , m_progressValue(0) {
+    , m_updateStep(UpdateDcEvent::UpdateStep::NONE) {
+
+    this->setStatusBar(new QStatusBar(this));
+    QFont f;
+    f.setStyleHint(QFont::Monospace);
+    f.setWeight(QFont::Bold);
+    f.setFamily("Misc Fixed");
+    f.setPixelSize(12);
+    this->statusBar()->setFont(f);
+
     ui->setupUi(this);
 
     ui->updateProgress->setRange(0, 100);
@@ -24,16 +38,19 @@ MainWindow::MainWindow(Worker *worker, QWidget *parent)
     QString start = QDateTime::currentDateTime().toString(Qt::ISODate);
     lst << QString("Start: ") + start.leftJustified(m_width-10);
     lst << QString("").leftJustified(m_width-3, '=');
+    lst << QString("Update tool version: %1 - %2 %3").arg(APP_VERSION).arg(APP_BUILD_DATE).arg(APP_BUILD_TIME).leftJustified(m_width-3);
     lst << QString("Machine number     : %1 ").arg(m_worker->machineNr()).leftJustified(m_width-3);
     lst << QString("Customer number    : %1 ").arg(m_worker->customerNr()).leftJustified(m_width-3);
     lst << QString("Zone number        : %1 (%2)").arg(m_worker->zoneNr()).arg(Utils::zoneName(m_worker->zoneNr())).leftJustified(m_width-3);
+    lst << QString("APISM version      : %1").arg(m_worker->apismVersion()).leftJustified(m_width-3);
     lst << QString("").leftJustified(m_width-3, '=');
 
     ui->updateStatus->setText(lst.join('\n'));
     ui->updateStatus->setEnabled(true);
+    // ui->updateStatus->installEventFilter(this);
 
     m_startTimer = new QTimer(this);
-    connect(m_startTimer, SIGNAL(timeout()), m_worker, SLOT(update()));
+    connect(m_startTimer, SIGNAL(timeout()), m_worker, SLOT(start()));
     m_startTimer->setSingleShot(true);
     m_startTimer->start(1000);
 
@@ -49,10 +66,11 @@ MainWindow::MainWindow(Worker *worker, QWidget *parent)
     connect(m_worker, SIGNAL(restartExitTimer()),this,SLOT(onRestartExitTimer()));
     connect(m_worker, SIGNAL(appendText(QString,QString)),this,SLOT(onAppendText(QString,QString)));
     connect(m_worker, SIGNAL(showErrorMessage(QString,QString)),this, SLOT(onShowErrorMessage(QString,QString)));
+    connect(m_worker, SIGNAL(showStatusMessage(QString,QString)),this, SLOT(onShowStatusMessage(QString,QString)));
+    connect(m_worker, SIGNAL(showErrorMessage(QStringList)),this, SLOT(onShowErrorMessage(QStringList)));
+    connect(m_worker, SIGNAL(showStatusMessage(QString,QString)),this, SLOT(onShowStatusMessage(QString,QString)));
     connect(m_worker, SIGNAL(replaceLast(QString,QString)),this,SLOT(onReplaceLast(QString,QString)));
-
+    connect(m_worker, SIGNAL(replaceLast(QStringList,QString)),this, SLOT(onReplaceLast(QStringList,QString)));
-    ui->updateStatus->setText(lst.join('\n'));
-    ui->updateStatus->setEnabled(true);
 }
 
 MainWindow::~MainWindow() {
@@ -74,22 +92,22 @@ void MainWindow::customEvent(QEvent *event) {
             case START_PROGRESS_LOOP: {
                 m_progressRunning = true;
                 ui->updateProgress->reset();
-                m_progressValue = 10;
+                // m_progressValue = 10;
-                QApplication::postEvent(this, new ProgressEvent(this, m_progressValue));
+                QApplication::postEvent(this, new ProgressEvent(this, 1));
             } break;
             case STOP_PROGRESS_LOOP: {
                 m_progressRunning = false;
-                m_progressValue -= 10;
+                // m_progressValue -= 10;
-                m_worker->setProgress(m_progressValue/10);
+                // m_worker->setProgress(m_progressValue/10);
             } break;
             default: {
                 if (m_progressRunning) {
-                        m_progressValue = progress;
+                    // m_progressValue = progress;
-                        ui->updateProgress->setValue(progress/10);
+                    ui->updateProgress->setValue(progress);
-                        QApplication::postEvent(this, new ProgressEvent(this, progress+10));
+                    // ueberpruefen: hauptfenster schickt sich selber ein event
-                        QThread::msleep(500);
+                    // QApplication::postEvent(this, new ProgressEvent(this, progress));
-                    }
+                    // QThread::msleep(500);
-                }
+                }}
             }
         } else
         if (sender == m_worker) {
@@ -129,69 +147,159 @@ void MainWindow::onEnableExit() {
 void MainWindow::onRestartExitTimer() {
     m_exitTimer->stop();
     m_exitTimer->start(60 * 1000);
+
+    scrollDownTextEdit();
+    ui->updateStatus->setEnabled(false);
 }
 
 void MainWindow::onQuit() {
     m_exitTimer->stop();
-    qCritical() << QString("ON QUIT: EXIT CODE %1").arg(m_worker->returnCode());
+    int errorCode = 0;
-    qApp->exit(m_worker->returnCode());
+
+    qCritical()
+        << QString("ON QUIT: CURRENT STEP %1")
+            .arg(m_worker->getSmap()[m_worker->currentStep()]);
+
+    // TODO: replace SEND_LAST_VERSION with UPDATE_SUCCEEDED
+    if (m_worker->currentStep() != Worker::UPDATE_STEP::SEND_LAST_VERSION) {
+        errorCode = -1;
+    }
+    qCritical() << QString("ON QUIT: EXIT CODE %1").arg(errorCode);
+    qApp->exit(errorCode);
+}
+
+void MainWindow::scrollDownTextEdit() {
+    // Utils::printInfoMsg(QString("SCROLL-DOWN-TEXT_EDIT CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
+    ui->updateStatus->setEnabled(true);
+
+    QTextCursor tmpCursor = ui->updateStatus->textCursor();
+    tmpCursor.movePosition(QTextCursor::End);
+    ui->updateStatus->setTextCursor(tmpCursor);
+    ui->updateStatus->ensureCursorVisible();
 }
 
 void MainWindow::onAppendText(QString text, QString suffix) {
+    // Utils::printInfoMsg(QString("ON APPEND CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
     QString editText = ui->updateStatus->toPlainText();
+    scrollDownTextEdit();
+
     if (!suffix.isNull() && suffix.size() > 0) {
-        qInfo() << "TEXT" << text << "SUFFIX" << suffix;
+        //qInfo() << "TEXT" << text << "SUFFIX" << suffix;
         if (suffix == Worker::UPDATE_STEP_SUCCESS || suffix == Worker::UPDATE_STEP_FAIL) {
-            editText += QString("\n").leftJustified(m_width-3, '=');
+            ui->updateStatus->insertPlainText(QString("\n").leftJustified(m_width-3, '=') + " ");
-            editText += " ";
+            // editText += QString("\n").leftJustified(m_width-3, '=');
+            // editText += " ";
         }
-        editText += (QString("\n") + text).leftJustified(m_width - (2 + suffix.size()) ) + suffix;
+        QString const &add = (QString("\n") + text).leftJustified(m_width - (2 + suffix.size())) + suffix;
+        ui->updateStatus->insertPlainText(add);
+        // editText += add;
     } else {
-        editText += text.leftJustified(m_width-9);
+        QString const &add = text.leftJustified(m_width-9);
+        ui->updateStatus->insertPlainText(add);
+        //editText += add;
     }
 
-    Utils::printLineEditInfo(editText.split('\n'));
+    // debug
+    // QString editText = ui->updateStatus->toPlainText();
+    // Utils::printLineEditInfo(editText.split('\n', QString::SplitBehavior::SkipEmptyParts));
+    // ui->updateStatus->setText(editText.trimmed());
 
-    ui->updateStatus->setPlainText(editText.trimmed());
+    // scrollDownTextEdit();
-    ui->updateStatus->setEnabled(true);
+}
+
+void MainWindow::onReplaceLast(QStringList newTextLines, QString suffix) {
+    // Utils::printInfoMsg(QString("ON REPLACE LAST (LIST) CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
+    int const s = newTextLines.size();
+    if (s > 0) {
+        QString editText = ui->updateStatus->toPlainText();
+        QStringList lines = editText.split('\n', QString::SplitBehavior::SkipEmptyParts);
+        QString newText;
+        if (lines.size() >= s) {
+            for (int i = 0; i < s; ++i) {
+                lines.removeLast();
+            }
+            if (lines.size() > 0) {
+                newText = lines.join('\n');
+                newText += '\n';
+            }
+            QStringList newLines;
+            for (int i = 0; i < s; ++i) {
+                if (i == 0 && !suffix.isNull() && suffix.size() > 0 && suffix != "\n") {
+                    newLines += Utils::rstrip(newTextLines.at(i).leftJustified(m_width-10) + suffix);
+                } else {
+                    newLines += Utils::rstrip(newTextLines.at(i).leftJustified(m_width-10));
+                }
+            }
+            lines += newLines;
+            newText += newLines.join(' ');
+        }
+
+        ui->updateStatus->setText(newText);
+        Utils::printLineEditInfo(lines);
+        scrollDownTextEdit();
+    }
 }
 
 void MainWindow::onReplaceLast(QString text, QString suffix) {
-        qInfo() << "REPL TEXT" << text << "SUFFIX" << suffix;
+    // Utils::printInfoMsg(QString("ON REPLACE LAST (TEXT) CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
 
     QString editText = ui->updateStatus->toPlainText();
-    QStringList lines = editText.split('\n');
+    QStringList lines = editText.split('\n', QString::SplitBehavior::SkipEmptyParts);
     if (lines.size() > 0) {
         lines.removeLast();
         if (!suffix.isNull() && suffix.size() > 0 && suffix != "\n") {
+            QString const add = text.leftJustified(m_width-10) + suffix;
+            if (!add.isEmpty()) {
                 lines += text.leftJustified(m_width-10) + suffix;
+            }
         } else {
+            QString const add = text.leftJustified(m_width-10);
+            if (!add.isEmpty()) {
                 lines += text.leftJustified(m_width-10);
             }
         }
+    }
 
     Utils::printLineEditInfo(lines);
-
     ui->updateStatus->setText(lines.join('\n').trimmed());
-    ui->updateStatus->setEnabled(true);
+    scrollDownTextEdit();
+}
+
+void MainWindow::onShowMessage(QString title, QString text) {
+    this->statusBar()->clearMessage();
+    this->statusBar()->showMessage( // timeout: 10000
+        QString(title + " " + text).leftJustified(80, ' '), 10000);
 }
 
 void MainWindow::onShowErrorMessage(QString title, QString text) {
-    text = text.leftJustified(50, ' ');
+    onShowMessage(title, text);
-    QMessageBox msgBox(QMessageBox::NoIcon, title,
+}
-                       text, QMessageBox::Ok,
-                       nullptr, Qt::FramelessWindowHint);
-    msgBox.setDefaultButton(QMessageBox::Ok);
-    msgBox.defaultButton()->setVisible(false);
 
-    QTimer *t = new QTimer(this);
+void MainWindow::onShowStatusMessage(QString title, QString text) {
-    connect(t, SIGNAL(timeout()), msgBox.defaultButton(), SLOT(click()));
+    onShowMessage(title, text);
-    t->setSingleShot(true);
+}
-    t->start(5 * 1000);
 
-    if(msgBox.exec() == QMessageBox::Ok) {
+void MainWindow::onShowErrorMessage(QStringList lst) {
-      // do something
+    if (lst.size() >= 2) {
-    } else {
+        onShowMessage(lst.at(0), lst.at(1));
-      // do something else
+    }
+    if (lst.size() == 1) {
+        onShowMessage(lst.at(0), "");
+    }
+}
+
+void MainWindow::onShowStatusMessage(QStringList lst) {
+    if (lst.size() >= 2) {
+        onShowMessage(lst.at(0), lst.at(1));
+    }
+    if (lst.size() == 1) {
+        onShowMessage(lst.at(0), "");
     }
 }

mainwindow.h

@@ -3,13 +3,19 @@
 
 #include <QMainWindow>
 #include <QTimer>
+#include <QStatusBar>
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
 QT_END_NAMESPACE
 
 #include "worker.h"
+#include "update.h"
+#include "update_dc_event.h"
 
+#define EMERGENCY_LEAVE_BL 0
+
+class hwinf;
 class MainWindow : public QMainWindow {
     Q_OBJECT
 
@@ -22,28 +28,50 @@ public:
 
     static const int START_PROGRESS_LOOP = -1;
     static const int STOP_PROGRESS_LOOP = -2;
+    static const int BL_START_COUNT = 5;
+    static const int BL_CHECK_COUNT = 5;
+    static const int BL_IS_UP_COUNT = 5;
+    static const int BL_STOP_COUNT = 5;
 
-    int progressValue() const { return m_progressValue; }
+    UpdateDcEvent::UpdateStep updateStep() const { return m_updateStep; }
+    void setUpdateStep(UpdateDcEvent::UpdateStep updateStep) { m_updateStep = updateStep; }
 
 public slots:
     void onAppendText(QString, QString suffix = "");
+    void onReplaceLast(QStringList, QString suffix = "");
     void onReplaceLast(QString, QString suffix = "");
     void onShowErrorMessage(QString, QString);
+    void onShowStatusMessage(QString, QString);
+    void onShowErrorMessage(QStringList);
+    void onShowStatusMessage(QStringList);
     void onStopStartTimer();
     void onRestartExitTimer();
     void onEnableExit();
     void onDisableExit();
+#if EMERGENCY_LEAVE_BL==1
+    void emergencyLeaveBL();
+#endif
+
+signals:
+
+#if EMERGENCY_LEAVE_BL==1
+    void leaveBL();
+#endif
 
 private slots:
     void onQuit();
 
 private:
+    void scrollDownTextEdit();
+    void onShowMessage(QString, QString);
+
     Ui::MainWindow *ui;
     Worker *m_worker;
-    int m_width;
+    int const m_width;
     QTimer *m_startTimer;
     QTimer *m_exitTimer;
     bool m_progressRunning;
-    int m_progressValue;
+    //int m_progressValue;
+    UpdateDcEvent::UpdateStep m_updateStep;
 };
 #endif // MAINWINDOW_H

mainwindow.ui

@@ -25,7 +25,7 @@
       <x>10</x>
       <y>10</y>
       <width>781</width>
-      <height>461</height>
+      <height>441</height>
      </rect>
     </property>
     <layout class="QGridLayout" name="gridLayout">
@@ -55,6 +55,15 @@
          <bold>true</bold>
         </font>
        </property>
+       <property name="verticalScrollBarPolicy">
+        <enum>Qt::ScrollBarAsNeeded</enum>
+       </property>
+       <property name="horizontalScrollBarPolicy">
+        <enum>Qt::ScrollBarAsNeeded</enum>
+       </property>
+       <property name="sizeAdjustPolicy">
+        <enum>QAbstractScrollArea::AdjustToContents</enum>
+       </property>
       </widget>
      </item>
     </layout>

plugins/interfaces.h

@@ -193,7 +193,7 @@ struct T_moduleCondition
         uint8_t	coinChecker;		// EMP, OMP or mei-cashflow
 
         uint8_t	coinEscrow;
-        uint8_t	mifareReader;
+        uint8_t	mifareReader;       // 0: unknown  1=OK  200=no response  201=wrong response   202: Reader reports HW-error
         uint8_t	creditTerm;
         uint8_t	coinReject;
 
@@ -344,7 +344,41 @@ struct T_devices
 
 };
 
+struct T_chg_Tub
+{
 
+    uint8_t  tubeLevel[8];      // [0]=nr coins of lowest value
+    uint8_t  tubeFull[8];       // 1=full  0 else
+    uint16_t tubeValues[8];     // in cent [0]=lowest value 5c or 10cent
+    uint16_t tubeFilled[8];     // nr of every coin inserted
+    uint16_t tubeDispens[8];     // nr of every coin dispensed
+    // 64 byte
+};
+
+struct T_changer
+{
+    // Fixdata from Coin Changer
+    uint8_t setup;  	// always 1
+    uint8_t state;  	// step of state machine
+        // 0..12 like EMP, 13...30 for coin dispense
+
+    uint8_t level;      // mdb-level, always 3
+    uint16_t countryCode;
+    uint8_t scale;
+    uint8_t decimals;
+    uint8_t coinSetup[16];  // [0]=lowest coin, multiply with scale
+    uint16_t intendedAcceptance;    //bitwise 0,1 1=accept coin, came from master
+    uint8_t tokenChannel;
+    uint8_t pollingRunning;		// 1: emp is polled  0:not
+    uint8_t paymentRunning;	// 1: coins are accepted
+    uint16_t denomination[16];
+    uint16_t availableTubes; //bitwise 0,1 1=av. bit0 = lowest coin value
+};
+
+struct T_bna
+{
+
+};
 
 class hwinf
 {
@@ -818,7 +852,7 @@ public:
 // --------------------------------------------- MIFARE -----------------------------------------------------
 // ----------------------------------------------------------------------------------------------------------
 
-
+// obsolete
     virtual uint8_t mif_returnReaderStateAndCardType(uint8_t *buf, uint8_t maxBufferSize) const =0;
         // retval 0=OK 1=error host buffer too small
     /* data description, new fast version:
@@ -840,13 +874,16 @@ public:
     virtual bool mif_readerIsOK(void) const =0;
 
     virtual bool mif_cardAttached(void) const =0;
+        // not working! use mif_cardIsAttached() instead
 
     virtual uint8_t mif_readResult(void) const =0;
         // result: 0: unknown or still in progress
         //         1: card read successful
         //         2: reading error
+        // not working!
 
     virtual QString mif_cardUID(void) const =0;
+        // not working
 
     virtual uint8_t mif_getCardDataDec(uint8_t blkNr, uint8_t *buf, uint8_t maxBufferSize) const =0;
 
@@ -1289,7 +1326,7 @@ public:
         // 1= wrong length    2=wrong start sign           5= wrong crc
         // 6= slave: master cmd was wrong       7: slave: could not write/read data
         // 8=timeout, got no response from slave
-
+        // 0,8 work, 1..6 not yet tested. 8 comes immed. and stays 8 until reconnect
 
     // use for important and extended commands (print several templates, print ticket...)
     virtual void log_startSupervision(void) const =0;
@@ -1299,6 +1336,7 @@ public:
         // 0: started, in progress
         // 1: done and OK
         // 2: done and error
+        // not working properly, always 0
 
     virtual bool log_getVaultData(uint8_t *data) const =0;
         // get vault record in linear 8bit buffer with 384 byte
@@ -1343,6 +1381,213 @@ public:
 
 
 
+    // new functions from 8.9.23
+    virtual QString mif_getReaderType(void) const =0;
+        // return "SL025" if correct reader is connected
+
+    virtual void mif_getCardSize(uint8_t *cardSize, uint8_t *idLeng) const =0;
+        // cardSize=1k or 4kByte
+        // idLeng =4Byte or 7 byte
+
+    virtual char mif_getAtbCardData(uint8_t *buf, uint8_t maxBuffSiz) const =0;
+        // return complete buffer binary, just for test purpose
+
+    virtual bool mif_isValidAtbCard(void) const =0;
+
+    virtual uint32_t mif_getAtbCardCuNu(void) const =0;
+
+    virtual uint8_t mif_getAtbCardTyp(void) const =0;
+        // return 1=upper door card     1=lower door    3=printer-test   4=coin-test
+        //          0: not a valid atb2020 card
+
+    virtual QString mif_getAtbCardPerso(void) const =0;
+        // e.g. "PNsax001" used for personal number, name shortcode, card number
+        // free to use, can be set in AtbMcw23.exe tool
+
+    virtual void mif_getAtbCardExpire(uint8_t *year, uint8_t *month, uint8_t *day, uint8_t *hour, uint8_t *minute) const =0;
+
+
+    // ------------------------------------------------------------------------------------
+    //    Device-Controller-Bootloader convenient version 21.09.2023
+    // ------------------------------------------------------------------------------------
+
+    // use this to jump to BL:
+    //void hwapi::bl_rebootDC(void) const
+
+    // use this to start BL:
+    // void hwapi::bl_startBL(void) const
+
+    // call this in order to get response from BL:
+    //void hwapi::bl_checkBL(void) const
+
+    // evaluate BL response:
+    //bool hwapi::bl_isUp(void) const
+
+    // 29.9.23: new: "completeStart" function, replaces bl_rebootDC(), bl_startBL() and bl_checkBL()
+    // result can be verified with bl_isUp() as before
+    virtual bool bl_completeStart(void) const =0;
+        // must be used in DC's normal operation
+
+    // select binfile-name in GUI
+
+    // send binfile-name to BL-processor:
+    virtual bool bl_storeFirmware(QString fileName) const =0;
+        // load binary file 3x and compare
+        // return true if loaded correctly
+        // return false:  error, could not load correctly
+
+    // request the number of blocks for this file
+    virtual uint16_t bl_getNrOfFirmwareBlocks(void) const =0;
+        // size of the loaded bin file in 64byte blocks
+        // call after bl_storeFirmware()
+
+    // call the next two function's repetitive with "blockNumber"=0,1,2,3....."bl_getNrOfFirmwareBlocks()"
+
+    virtual bool bl_blockAutoLoad(uint16_t blockNumber) const =0;
+        // call in loop from block number 0 up to <= "dcBL_getNrOfBlocks()"
+        //the last block "bl_getNrOfFirmwareBlocks()" is sent as conclusion command (important!)
+        // but after every call WAIT (!) for response "bl_blockAutoResponse()" !!!!
+        // data will be sent to DC, if neccesary addr will be sent additionally
+        // if neccesary sending will automatically repeat up to 3times
+        // retval: false if blockNumber>4095, true else
+
+    // check out this response after every block-sending, wait until >0!!!
+    virtual int8_t bl_blockAutoResponse(void) const =0;
+        // after every "bl_blockAutoLoad()" call this until response
+        // retval  0: wait   1: OK, blk was sent    2: OK, transfer complete
+        //         3: error despite repeating, cancel. probably bin file corrupted
+        //      Max duration: 3x no response from BL = 900ms
+
+
+    // finally call:
+    // void hwapi::bl_stopBL(void) const
+    // -------------- end of bootloader ---------------------------------------------------
+
+
+
+    // new from 28.9.23 and earliest from DC version 4.45
+    // get all versions of the DC-Jsons
+    virtual void sys_requestJsonVersions(uint8_t  jsonNr) const =0;
+        // send one request for every single version
+        // jsonNr=1...36, 1=config file (cust.Nr) 2=devices  3=cash  4=res.
+        //      5=printer template 1 ..... 36= template 32
+
+    virtual void sys_getJsonVersions(uint8_t  jsonNr, char *versionString) const =0;
+        // jsonNr=1...36, 1=config file (cust.Nr) 2=devices  3=cash  4=res.
+        //      5=printer template 1 ..... 36= template 32
+        // length of buffer is always 16 byte
+
+    // ------------------------------------------------------------------------------------
+    //   Coin Changer
+    // ------------------------------------------------------------------------------------
+
+    // find above (same as for coin checker (EMP)):
+
+    // mdb_switchPower(true);       // power on/off
+    // cash_startPayment(amount_cent); // start polling, enable coins, changer turns to green
+
+    // getInsertedAmount()
+    // getLastInsertedCoin()
+    // getAllInsertedCoins(uint16_t *types, uint16_t *values)
+        // all inserted coins of this past transaction are stored, max 64
+
+    // cash_stopPayment();      // and wait for further command (changer blinks yellow)
+    // cash_cancelPayment();    // and return complete paid amount
+
+    // after ticket/goods issue:
+    // vend_success()
+        // conclude payment process, keep all coins. Printing was successful
+        // return change (payment above start-amount), so it works only if
+        //  Payment was started with real vending price (pre selection).
+        // if payment was started with maximum price (for direct coin insertion)
+        // then use "changer_returnCoins()", not vend_success()
+
+    // vend_failed()
+        // conclude payment process and return complete paid amount
+
+    // also valid for changer:
+    // emp_sendSettings(uint16_t coinAcceptance, uint8_t tokenChannel, uint16_t *coinDenomination ) const =0;
+        // coinAcceptance: bit0=coin1 (lowest donomination)  bit15=coin16  bitH=accept  bit L = deny coin (no validation)
+        // tokenChannel 0...31: if this signal comes from emp then a token was inserted
+        // coinDenomination = array of 16 coin values (e.g. 5, 10, 20...)
+
+    virtual void changer_returnCoins(uint32_t amountInCent) const =0;
+
+    virtual void changer_requestChangeResult(void) const =0;
+
+    virtual uint8_t changer_getChangeResult(uint32_t *returnedAmount) const =0;
+        // get result of coin dispensing
+        // receivedData[0]: 0: not yet started      1:amount returned
+        //                  2:only partial return   3: no return possible
+        // receivedData[2,3,4,5]: returned amount
+
+    virtual void changer_getAllParameters(struct T_changer *mw) const =0;
+        // requested automatically with 23, same like EMP
+
+    virtual void changer_requestTubelevel(void) const =0;
+
+    virtual void changer_getTubelevel(struct T_chg_Tub *tubLevel) const =0;
+        // don't use tubeDispens[], it's not yet correct!
+
+
+
+    // ------------------------------------------------------------------------------------
+    //   bank note acceptor
+    // ------------------------------------------------------------------------------------
+
+    // already defiened functions applying for BNA as well:
+    // mdb_switchPower(true);       // power on/off
+
+    // bank notes are integrated in the normal transaction process, so use the usual functions to run a vending cycle:
+    // cash_startPayment(amount_cent); // start polling, enable bills, reader shows green
+    // getInsertedAmount()
+    // cash_stopPayment();
+    // cash_cancelPayment();
+    // vend_success()
+    // vend_failed()
+
+    virtual void bna_sendSettings(uint16_t notesToAccept, uint16_t parameters,
+                                  uint16_t *billDenomination,
+                                  uint32_t acceptanceLimit) const =0;
+        // notesToAccept: bit0=bill1 (lowest donomination)  bitH=accept  bit L = deny
+        // parameters: e.g. use escrow function for some notes
+        // billDenomination = array of 16 bill values (e.g. 5, 10, 20...)
+        // these can be set alternatively by Json-File DC2C_cash.json
+        // acceptanceLimit: device will stop acceptance once this amount is reached and
+        //          optionally keep last bill in escrow until vend_success()
+        //          is called (put bill to stacker) or vend_failed() is called (return bill)
+
+    virtual void bna_setCurrentAcceptance(uint16_t notesToAccept) const =0;
+        // can be used to block notes dynamically, example: from now only 5€ bills are allowed (if only 3€ are to be paid)
+        // only valid till next start-payment. Cannot add notes which are not activated in Json
+
+    virtual void bna_requestParameters(void) const =0;
+        // send command to DC in order to get static invariable device parameters like currency
+        // device must be powered and polled to get these
+
+    virtual bool bna_getAllParameters(struct T_bna *bna) const =0;
+        // get all constant data from reader (e.g. currency)
+        // and actual Host-Settings (sent with bna_sendSettings() or json)
+        // retval = true if data are valid
+
+    virtual void bna_requestCurrentNotes(void) const =0;
+        // send command to DC in order to get transaction data
+
+    virtual uint8_t bna_getCurrentNotes(uint16_t latestBill, uint16_t *currentNotes) const =0;
+        // returns number of collected bank notes since start-command (current transaction)
+        //  latestBill: last accepted bank note, value in cent
+        //  currentNotes an array with up to 16 (further) notes collected
+
+    virtual void bna_requestStackerLevel(void) const =0;
+
+    virtual uint16_t bna_getStackerLevel(uint32_t *amountInStacker, uint16_t *countOfBills) const =0;
+        // return val: nr of bills in stacker
+        // countOfBills: array of up to 16 sums,    countOfBills[0]=nr of 5€-bills in stacker
+        //                                          countOfBills[1] for 10€   and so on
+
+
+
+
 signals:
     virtual void hwapi_templatePrintFinished_OK(void) const=0;
     virtual void hwapi_templatePrintFinished_Err(void) const=0;
@@ -1360,8 +1605,6 @@ signals:
     virtual void hwapi_payCancelled(void) const=0;
     virtual void hwapi_coinProcessJustStopped(void) const=0;
 
-
-    // new from 2023.06.12
     virtual void hwapi_doorServiceDoorOpened(void) const=0;
     virtual void hwapi_doorVaultDoorOpened(void) const=0;
     virtual void hwapi_doorCoinBoxRemoved(void) const=0;
@@ -1413,9 +1656,23 @@ signals:
 //#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.1"
 //#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.2"
 //#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.3"
-#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.4"
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.4"
-
+    // 8.9.2023 two new functions (end of file) for mifare test
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.5"
+    // 18.9.2023 major improvements for DC data exchange
+    // verification of door and cash box signals
+    // intensive verification of Json-Programming Master-Slave (PTU to DC), 100% ok
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.6"
+    // 20.9.2023: speeding up door and cash box signals
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.7"
+    // 26.09.2023: added improved DC-bootloader files
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/4.8"
+// 28.09.2023: added version request of DC-Json-Files
+//#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/5.0"
+    // 10.10.2023: added coin changer
 
+#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/5.1"
+// 20.10.2023: added bill validator
 
 
 Q_DECLARE_INTERFACE(hwinf, HWINF_iid)

process/command.cpp

@@ -2,13 +2,16 @@
 
 #include <QProcess>
 #include <QDebug>
+#include <QDir>
 #include <QRegularExpression>
+#include <QDateTime>
 
 Command::Command(QString const &command, int start_timeout, int finish_timeout)
     : m_command(command.trimmed())
     , m_commandResult("")
     , m_waitForStartTimeout(start_timeout)
-    , m_waitForFinishTimeout(finish_timeout) {
+    , m_waitForFinishTimeout(finish_timeout)
+    , m_exitCode(-1) {
 }
 
 QString Command::getCommandResult() const {
@@ -39,46 +42,83 @@ void Command::finished(int /*exitCode*/, QProcess::ExitStatus /*exitStatus*/) {
 }
 
 bool Command::execute(QString workingDirectory, QStringList args) {
+
+    if (!QDir::setCurrent(workingDirectory)) {
+        qCritical() << "SET WORKING_DIRECTORY" << workingDirectory
+                    << "FAILED FOR" << m_command;
+        return false;
+    }
+
     QScopedPointer<QProcess> p(new QProcess(this));
+    p->setWorkingDirectory(workingDirectory);
     p->setProcessChannelMode(QProcess::MergedChannels);
 
     connect(&(*p), SIGNAL(readyReadStandardOutput()), this, SLOT(readyReadStandardOutput()));
     connect(&(*p), SIGNAL(readyReadStandardError()), this, SLOT(readyReadStandardError()));
 
-    //qCritical() << "START COMMAND" << m_command << "WITH ARGS" << args
-    //            << "IN" << workingDirectory;
-
-    p->setWorkingDirectory(workingDirectory);
     if (!args.isEmpty()) {
+        qDebug() << "START COMMAND" << m_command << "WITH ARGS" << args
+                 << "IN" << p->workingDirectory();
         p->start(m_command, args);
     } else {
+        qDebug() << "START COMMAND" << m_command
+                 << "IN" << p->workingDirectory();
         p->start(m_command);
     }
 
+    qint64 const start = QDateTime::currentDateTime().toMSecsSinceEpoch();
+
     if (p->waitForStarted(m_waitForStartTimeout)) {
-        //qDebug() << "PROCESS" << m_command << "STARTED";
+        qDebug() << "PROCESS" << m_command << "STARTED IN" << p->workingDirectory();
         if (p->state() == QProcess::ProcessState::Running) {
-            //qDebug() << "PROCESS" << m_command << "RUNNING";
+            qDebug() << "PROCESS" << m_command << "RUNNING IN" << p->workingDirectory();
-            if (p->waitForFinished(m_waitForFinishTimeout)) {
+            // wait forever for git/opkg-commands to finish
-                //qDebug() << "PROCESS" << m_command << "FINISHED";
+            int wait = m_waitForFinishTimeout;
+            if (m_command.trimmed().startsWith("git", Qt::CaseInsensitive) ||
+                m_command.trimmed().startsWith("opkg", Qt::CaseInsensitive)) {
+                wait = -1;
+            }
+            bool const no_timeout = p->waitForFinished(wait);
+            if (no_timeout) {
+                qDebug() << "PROCESS" << m_command << "FINISHED IN" << p->workingDirectory();
                 if (p->exitStatus() == QProcess::NormalExit) {
-                    if (p->exitCode() == 0) {
+                    if ((m_exitCode = p->exitCode()) == 0) {
+                        qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                        qDebug() << "EXECUTED" << m_command
+                                 << QString("(runtime %1ms)").arg(end-start)
+                                 << "with code" << m_exitCode
+                                 << "IN" << p->workingDirectory();
                         return true;
                     } else {
-                        qCritical() << "EXECUTED" << m_command << "with code" << p->exitCode();
+                        qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                        qCritical() << "EXECUTED" << m_command
+                                    << QString("(runtime %1ms)").arg(end-start)
+                                    << "with code" << m_exitCode
+                                    << "IN" << p->workingDirectory();
                     }
                 } else {
+                    qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
                     qCritical() << "PROCESS" << m_command << "CRASHED with code"
-                                << p->exitCode();
+                                << p->exitCode()
+                                << QString("(after %1ms)").arg(end-start)
+                                << "IN" << p->workingDirectory();
                 }
             } else {
-                qCritical() << "PROCESS" << m_command << "DID NOT FINISH";
+                qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                qCritical() << "PROCESS" << m_command
+                            << "DID NOT FINISH WITH" << wait
+                            << "MS IN" << p->workingDirectory()
+                            << QString("(runtime %1ms)").arg(end-start);
             }
         } else {
-            qCritical() << "WRONG PROCESS STATE" << p->state();
+            qCritical() << "WRONG PROCESS STATE" << p->state()
+                        << "IN" << p->workingDirectory();
         }
     } else {
-        qCritical() << "PROCESS" << m_command << "TIMEOUT AT START";
+        qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+        qCritical() << "PROCESS" << m_command << "TIMEOUT AT START"
+                    << QString("(runtime %1ms)").arg(end-start)
+                    << "IN" << p->workingDirectory();
     }
     return false;
 }

process/command.h

@@ -16,15 +16,17 @@ class Command : public QObject {
     QString m_commandResult;
     int m_waitForStartTimeout;
     int m_waitForFinishTimeout;
-
+    int m_exitCode;
 public:
     explicit Command(QString const &command,
                      int start_timeout = 100000,
                      int finish_timeout = 100000);
 
     QString getCommandResult() const;
+    QString command() const { return m_command; }
 
     bool execute(QString workingDirectory, QStringList args = QStringList());
+    int exitCode() const { return m_exitCode; }
 
 private slots:
     void readyReadStandardOutput();

update.cpp

@@ -1,5 +1,8 @@
 #include "update.h"
 #include "worker.h"
+#include "utils.h"
+#include "update_dc_event.h"
+#include "mainwindow.h"
 
 #include <QCoreApplication>
 #include <QApplication>
@@ -9,10 +12,11 @@
 #include <QTextStream>
 #include <QRegularExpression>
 #include <QRegExp>
+#include <QApplication>
 
-//#include <iostream>
+#if defined (Q_OS_UNIX) || defined (Q_OS_LINUX)
-//#include <fstream>
+#include "unistd.h"
-//#include <ctime>
+#endif
 
 #include "plugins/interfaces.h"
 
@@ -25,17 +29,15 @@
 #include <QMap>
 
 #define UPDATE_OPKG                 (1)
-#define UPDATE_DC                   (1)
+#define UPDATE_DC                   (0)
-#define UPDATE_PRINTER_TEMPLATES    (1)
-#define UPDATE_CASH_TEMPLATE        (1)
-#define UPDATE_CONF_TEMPLATE        (1)
-#define UPDATE_DEVICE_TEMPLATE      (1)
 
 static const QMap<QString, int> baudrateMap = {
   {"1200"   ,   0}, {"9600"   ,   1}, {"19200"  ,   2}, {"38400"  ,   3},
   {"57600"  ,   4}, {"115200" ,   5}
 };
 
+QPluginLoader Update::pluginLoader;
+
 hwinf *Update::loadDCPlugin(QDir const &plugInDir, QString const &fname) {
     hwinf *hw = nullptr;
     if (plugInDir.exists()) {
@@ -44,7 +46,8 @@ hwinf *Update::loadDCPlugin(QDir const &plugInDir, QString const &fname) {
         QFileInfo info(pluginLibName);
         if (info.exists()) {
             pluginLibName = plugInDir.absoluteFilePath(pluginLibName);
-            static QPluginLoader pluginLoader(pluginLibName);
+            pluginLoader.setFileName(pluginLibName);
+            // static QPluginLoader pluginLoader(pluginLibName);
             if (!pluginLoader.load()) {
                 qCritical() << "in directory" << plugInDir.absolutePath();
                 qCritical() << "cannot load plugin" << pluginLoader.fileName();
@@ -76,26 +79,51 @@ hwinf *Update::loadDCPlugin(QDir const &plugInDir, QString const &fname) {
     return hw;
 }
 
-Update::Update(hwinf *hw,
+bool Update::unloadDCPlugin() {
-               Worker *worker,
+    if (pluginLoader.unload()) {
+        qCritical() << "unloaded plugin" << pluginLoader.fileName();
+        // Note: will re-instantiate the library !
+        // QObject *rootObject = pluginLoader.instance();
+        // if (rootObject) {
+        //    qCritical() << "reloaded plugin: root object again available";
+        //    return false;
+        // }
+        // qCritical()unloaded plugin: root object gone";
+        return true;
+    }
+    return false;
+}
+
+Update::Update(Worker *worker,
                QString customerRepository,
                QString customerNrStr,
                QString branchName,
+               QString plugInDir,
+               QString pluginName,
                QString workingDir,
                bool dryRun,
                QObject *parent,
                char const *serialInterface,
                char const *baudrate)
     : QObject(parent)
-    , m_hw(hw)
+    , m_hw(loadDCPlugin(QDir(plugInDir), pluginName))
     , m_worker(worker)
     , m_serialInterface(serialInterface)
     , m_baudrate(baudrate)
     , m_customerRepository(customerRepository)
     , m_customerNrStr(customerNrStr)
     , m_branchName(branchName)
+    , m_pluginName(pluginName)
     , m_workingDir(workingDir)
     , m_dryRun(dryRun) {
+
+    qInfo() << "UPDATE: m_serialInterface    ..." << m_serialInterface;
+    qInfo() << "UPDATE: m_baudrate           ..." << m_baudrate;
+    qInfo() << "UPDATE: m_customerRepository ..." << m_customerRepository;
+    qInfo() << "UPDATE: m_customerNr ..........." << m_customerNrStr;
+    qInfo() << "UPDATE: m_branchName ..........." << m_branchName;
+    qInfo() << "UPDATE: m_pluginName ..........." << m_pluginName;
+    qInfo() << "UPDATE: m_workingDirectory ....." << m_workingDir;
 }
 
 Update::~Update() {
@@ -221,48 +249,99 @@ Update::DownloadResult Update::dc_downloadBinary(QByteArray const &b) const {
     return res;
 }
 
-bool Update::startBootloader() const {
+bool Update::startBootloader() const { // deprecated
-    qDebug() << "starting bootloader...";
+    return false;
-    int nTry = 5;
+#if 0
-    while (--nTry >= 0) {
+    int nStartTry = 5;
+    while (--nStartTry >= 0) {
         m_hw->bl_startBL();
-        QThread::msleep(5000);
+        QThread::msleep(500);
+        int nCheckTry = 10;
+        while (--nCheckTry >= 0) {
             m_hw->bl_checkBL();
+            QThread::msleep(500);
             if (m_hw->bl_isUp()) {
                 qInfo() << "starting bootloader...OK";
-            QThread::msleep(5000);
                 return true;
             } else {
-            qCritical() << "bootloader not up (" << nTry << ")";
+                qCritical() << "bootloader not up ("
+                            << nStartTry << "," << nCheckTry << ")" << QThread::currentThread();
             }
         }
-    qCritical() << "starting bootloader...FAILED";
+    }
+    qCritical() << "starting bootloader...FAILED" << QThread::currentThread();
     return false;
+#endif
 }
 
 bool Update::stopBootloader() const {
-    qDebug() << "stopping bootloader...";
+    // stop bootloader: this MUST work -> otherwise the PSA has to be restarted
-    int nTry = 5;
+    // manually
-    while (--nTry >= 0) {
+    emit m_worker->showErrorMessage("dc update", "stopping bootloader...");
-        m_hw->bl_stopBL();
+
+    int nTryFinalize = 1; // could do this in an endless loop
+
+    do {
+        // in principle, any value except BL_STOP will do, as we want to detect
+        // change to BL_STOP
+        m_worker->mainWindow()->setUpdateStep(UpdateDcEvent::UpdateStep::BL_CHECK);
+
+        QApplication::postEvent(
+            m_worker->mainWindow(),
+            new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::BL_STOP, nTryFinalize));
+
+        QThread::sleep(1);
+
+        int const cntLimit = 20;
+        int cnt = 0;
+        while (++cnt < cntLimit &&
+            m_worker->mainWindow()->updateStep() != UpdateDcEvent::UpdateStep::BL_STOP) {
+            // wait until bl_stopBL() has been sent
             QThread::msleep(500);
-        if (!m_hw->bl_isUp()) {
-            qInfo() << "stopping bootloader...OK";
-            return true;
         }
+
+        QApplication::postEvent(
+            m_worker->mainWindow(),
+            new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::BL_CHECK, nTryFinalize));
+        QThread::sleep(1);
+
+        QApplication::postEvent(
+            m_worker->mainWindow(),
+            new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::BL_IS_UP, nTryFinalize));
+        QThread::sleep(1);
+
+        cnt = 0;
+        while (++cnt < cntLimit &&
+            m_worker->mainWindow()->updateStep() != UpdateDcEvent::UpdateStep::BL_IS_DOWN) {
+            // wait until  done
+            QThread::msleep(200);
         }
-    qCritical() << "stopping bootloader...FAILED";
+
-    return false;
+    } while (++nTryFinalize <= MainWindow::BL_STOP_COUNT &&
+             m_worker->mainWindow()->updateStep() != UpdateDcEvent::UpdateStep::BL_IS_DOWN);
+
+    return (m_worker->mainWindow()->updateStep() == UpdateDcEvent::UpdateStep::BL_IS_DOWN);
 }
 
 // br is a index into a table, used for historical reasons.
 bool Update::openSerial(int br, QString baudrate, QString comPort) const {
     qDebug() << "opening serial" << br << baudrate << comPort << "...";
-    if (m_hw->dc_openSerial(br, baudrate, comPort, 1)) { // 1 for connect
+    if (m_hw->dc_openSerial(br, baudrate, comPort, 1) == true) { // 1 for connect
-        qInfo() << "opening serial" << br << baudrate << comPort << "...OK";
+        Utils::printInfoMsg(
+            QString("OPENING SERIAL %1").arg(br)
+                  + " " + baudrate + " " + comPort + "...OK");
+
+        // m_hw->dc_autoRequest(true);
+        m_hw->dc_autoRequest(false);
+        QThread::sleep(1);
+
+        Utils::printInfoMsg(QString("IS PORT OPEN %1").arg(m_hw->dc_isPortOpen()));
         return true;
     }
-    qCritical() << "opening serial" << br << baudrate << comPort << "...FAILED";
+
+    Utils::printCriticalErrorMsg(
+        QString("OPENING SERIAL %1").arg(br)
+              + " " + baudrate + " " + comPort + "...FAILED");
     return false;
 }
 
@@ -275,13 +354,15 @@ bool Update::isSerialOpen() const {
     return m_hw->dc_isPortOpen();
 }
 
-bool Update::resetDeviceController() const {
+bool Update::resetDeviceController() const { // deprecated
+    return false;
+#if 0
     qDebug() << "resetting device controller...";
     m_hw->bl_rebootDC();
     // wait maximally 3 seconds, before starting bootloader
-    QThread::sleep(1);
     qInfo() << "resetting device controller...OK";
     return true;
+#endif
 }
 
 QByteArray Update::loadBinaryDCFile(QString filename) const {
@@ -319,17 +400,61 @@ bool Update::downloadBinaryToDC(QString const &bFile) const {
 }
 
 /*
- Using the DC bootloader:
- 1  :   bl_reboot()      // send to application, want DC2 to reset (in order to start
-                        // the bootloader)
- 2  :   bl_startBL():   // send within 4s after DC poewer-on, otherwise bl is left
- 3  :   bl_check():     // send command to verify if bl is up
- 4  :   bl_isUp():      // returns true if bl is up and running
 
+ ///////////////////////////////////////////////////////////////////////////////
+ //
+ //                        USING THE DC BOOTLOADER
+ //
+ ///////////////////////////////////////////////////////////////////////////////
+
+ 1  :   bl_reboot()     // send to application, want DC2 to reset (in order to
+                        // start the bootloader)
+                        //
+                        // NOTE: this function is NOT reliable !!! Sometimes it
+                        // simply does not work, in which case bl_startBL,
+                        // bl_checkBL and bl_isUp do not work as well.
+                        // Alas, there is no feedback if bl_reboot worked!
+                        //
+                        // NOTE: this function can be called only once per
+                        // minute, because once called again, the controller
+                        // performs some self-checks consuming some time.
+                        //
+                        // NOTE: after a successful bl_reboot(), the device is
+                        // waiting about 4 seconds in the bootloader. To stay in
+                        // the bootloader, we have to send the command
+                        // bl_startBL(), which is kind of a misnomer, as it
+                        // should be bl_doNotLeaveBL().
+                        //
+ 2  :   bl_startBL():   // send within 4s after DC power-on, otherwise
+                        // bootloader is left.
+                        //
+                        // NOTE: a running bootloader is a MUST for the download
+                        // process of a device controller firmware as it does
+                        // the actual writing of the memory (the bl_reboot()
+                        // from above erases the available memory).
+                        //
+ 3  :   bl_check():     // send command to verify if bl is up
+                        //
+                        // NOTE: this command is kind of a request that we want
+                        // to check if the bootloader is up. The device
+                        // (actually the bootloader) responds with its version.
+                        //
+ 4  :   bl_isUp():      // returns true if bl is up and running
+                        //
+                        // NOTE: we know what the bootloader version actually is
+                        // as the bootloader does not change. By comparing the
+                        // string received in the previous step with this known
+                        // version string we know if the bootloader is up.
+                        //
+                        // NOTE FOR ALL PREVIOUS STEPS: execute them in their
+                        // own slots each to be sure to receive any possible
+                        // responds from the device.
+                        //
  5  :   bl_sendAddress(blockNumber)
                         // send start address, nr of 64-byte block, start with 0
                         // will be sent only for following block-numbers:
-                        // 0, 1024, 2048, 3072 and 4096, so basically every 64kByte
+                        // 0, 1024, 2048, 3072 and 4096, so basically every
+                        // 64kByte.
                         // for other addresses nothing happens
 
  6  :   bl_wasSendingAddOK()
@@ -349,54 +474,119 @@ bool Update::downloadBinaryToDC(QString const &bFile) const {
                         //             10: OK
 
  10 :   bl_stopBL()     // leave bl and start (the new) application
+                        //
+                        // NOTE: this function MUST work under all conditions.
+                        // Alas, there is no direct result for this command, so
+                        // the only way of knowing it was successful is to ask
+                        // the device if the bootloader is still running.
+                        // There is no problem to repeat this command until the
+                        // bootloader is really not running anymore.
  */
 bool Update::updateBinary(char const *fileToSendToDC) {
-    qInfo() << "UPDATING DEVICE CONTROLLER BINARY" << fileToSendToDC;
+    qInfo() << "UPDATING DEVICE CONTROLLER FIRMWARE BINARY" << fileToSendToDC;
     QFile fn(fileToSendToDC);
     bool r;
     if ((r = fn.exists()) == true) {
         QFileInfo fi(fn);
-        qInfo() << "      UPDATING BINARY" << fi.fileName() << "(size=" << fi.size() << ")";
         if ((r = updateDC(fileToSendToDC)) == true) {
-            qCritical() << QString(80, '*');
+            Utils::printInfoMsg(
-            qInfo() << "      UPDATING BINARY" << fi.fileName() << "(size=" << fi.size() << ") DONE";
+                QString("      UPDATING BINARY ") + fi.fileName()
-            qCritical() << QString(80, '*');
+                      + QString(" (size=%1").arg(fi.size()) + ") DONE");
         } else {
-            qCritical() << QString(80, '*');
+            Utils::printCriticalErrorMsg(
-            qCritical() << "      UPDATING BINARY" << fi.fileName() << "(size=" << fi.size() << ") FAILED";
+                QString("      UPDATING BINARY ") + fi.fileName()
-            qCritical() << QString(80, '*');
+                      + QString(" (size=%1").arg(fi.size()) + ") FAILED");
         }
     } else {
-        qCritical() << QString(80, '*');
+        Utils::printCriticalErrorMsg(
-        qCritical() << fileToSendToDC << "does not exist -> NO UPDATE OF DC FIRMWARE";
+            QString(fileToSendToDC) + " DOES NOT EXIST -> NO UPDATE OF DC FIRMWARE");
-        qCritical() << QString(80, '*');
     }
     return r;
 }
 
 bool Update::updateDC(QString bFile) const {
-    qDebug() << "updating dc...";
+    qDebug() << "IN UPDATEDC: UPDATING DC: FILE TO SEND" << bFile;
-    qDebug() << "updating dc: file to send" << bFile;
+
-    if (!resetDeviceController()) {
+    m_worker->mainWindow()->setUpdateStep(UpdateDcEvent::UpdateStep::NONE);
-        return false;
+
+    QApplication::postEvent(            // step 1: reset device controller
+        m_worker->mainWindow(),
+        new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::DC_REBOOT, 1));
+    QThread::sleep(1);
+
+    for (int i=1; i <= MainWindow::BL_START_COUNT; ++i) {
+        QApplication::postEvent(        // step 2: start bootloader (5x)
+            m_worker->mainWindow(),
+            new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::BL_START, i));
+        QThread::sleep(1);
     }
-    if (!startBootloader()) {
+
-        // even when start seems to fail, stopping the boot loader does not harm
+    int const cntLimit = 100;       // wait until its for sure that bl_startBL()
-        stopBootloader();
+    int cnt = 0;                    // has been excuted
+    while (++cnt < cntLimit &&
+        m_worker->mainWindow()->updateStep() != UpdateDcEvent::UpdateStep::BL_START) {
+        // wait until all bl_startBL() are done
+        QThread::msleep(200);
+    }
+
+    if (cnt == cntLimit) {
+        // start events not received ???
+        Utils::printCriticalErrorMsg("BL_START EVENT NOT RECEIVED AFTER 20 SECS");
         return false;
     }
 
+    m_worker->mainWindow()->setUpdateStep(UpdateDcEvent::UpdateStep::BL_CHECK);
+
+    for (int i=1; i <= MainWindow::BL_IS_UP_COUNT; ++i) {
+        QApplication::postEvent(m_worker->mainWindow(), new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::BL_CHECK, i));
+        QThread::sleep(1);
+        QApplication::postEvent(m_worker->mainWindow(), new UpdateDcEvent(m_worker, UpdateDcEvent::UpdateStep::BL_IS_UP, i));
+        if (m_worker->mainWindow()->updateStep() == UpdateDcEvent::UpdateStep::BL_IS_UP) {
+            break;
+        }
+        QThread::sleep(1);
+    }
+
+    cnt = 0;
+    while (++cnt < cntLimit &&
+        m_worker->mainWindow()->updateStep() != UpdateDcEvent::UpdateStep::BL_IS_UP) {
+        // wait until all bl_startBL() are done
+        QThread::msleep(200);
+    }
+
+    if (cnt == cntLimit) {
+        // really not up
+        Utils::printCriticalErrorMsg("BL_IS_UP EVENT NOT RECEIVED AFTER 20 SECS");
+        stopBootloader(); // try to stop bootloader whichhas been already started
+        return false;
+    }
+
+    if (m_worker->mainWindow()->updateStep() == UpdateDcEvent::UpdateStep::BL_IS_UP) {
+        // bootloader MUST be running to download device-controller
+#if 0
         if (!downloadBinaryToDC(bFile)) {
-        stopBootloader();
+            Utils::printCriticalErrorMsg(
-        qCritical() << "updating dc: " << bFile << "...FAILED";
+                QString("UPDATING DC: ") + bFile + " ...DOWNLOAD FAILED");
+        }
+#endif
+
+    } else {
+        Utils::printCriticalErrorMsg(
+            QString("UPDATING DC: ") + bFile + " BOOT LOADER NOT RUNNING -> NO DOWNLOAD ("
+                  + QThread::currentThread()->objectName() + ")");
         return false;
     }
-    qInfo() << "updating dc: " << bFile << "...OK";
 
-    stopBootloader();
+    // do this unconditionally, even if bootloader is not running at all ->
-    //resetDeviceController();
+    // the controller possibly tells us nonsense.
+    if (!stopBootloader()) {
+        Utils::printCriticalErrorMsg(
+            QString("UPDATING DC: ") + bFile + " BOOT LOADER STILL RUNNING ("
+                  + QThread::currentThread()->objectName() + ")");
+        return false;
+    }
 
-    QThread::sleep(3);
+    Utils::printInfoMsg(QString("UPDATING DC: ") + bFile + " ...OK");
     return true;
 }
 
@@ -416,9 +606,12 @@ bool Update::downloadJson(enum FileTypeJson type,
                           int templateIdx,
                           QString jsFileToSendToDC) const {
 
-    qDebug() << "updating json-file:" << jsFileToSendToDC << "...";
+
-    qDebug() << "    template-index:" << templateIdx;
+    Utils::printInfoMsg(
-    qDebug() << "         json-type:" << jsonType(type);
+        QString("UPDATING JSON-FILE=%1, TEMPLATE-INDEX=%2, JSON-TYPE=%3")
+            .arg(jsFileToSendToDC)
+            .arg(templateIdx)
+            .arg(jsonType(type)));
 
     m_hw->dc_autoRequest(true); // downloading Json needs the AutoEmission flag
     qDebug() << "SET AUTO-REQUEST=TRUE";
@@ -429,7 +622,7 @@ bool Update::downloadJson(enum FileTypeJson type,
     while ((ready = m_hw->sys_ready4sending()) == false) {
         QThread::msleep(200);
         if (--nTry <= 0) {
-            qCritical() << "SYS NOT READY FOR SENDING AFTER 5 SECONDS";
+            Utils::printCriticalErrorMsg("SYS NOT READY FOR SENDING AFTER 5 SECONDS");
             break;
         }
     }
@@ -442,22 +635,27 @@ bool Update::downloadJson(enum FileTypeJson type,
             if (file.open(QIODevice::ReadOnly)) {
                 if (fi.size() <= 800) {
                     QByteArray ba = file.readAll();
+                    // kindOfFile: 1=config, 2=device, 3=cash, 4=serial, 5=time, 6=printer
+                    //      nrOfTemplate=1...32 if kindOfFile==6
+                    //      content = content of the Json file, max 800byte ascii signs
                     if (m_hw->sys_sendJsonFileToDc((uint8_t)(type),
                                                    templateIdx,
                                                    (uint8_t *)ba.data())) {
                         QThread::sleep(1);
-                        qDebug() << "SENT" << jsFileToSendToDC;
                         ret = true;
                     }
                 } else {
-                    qCritical() << "SIZE OF" << jsFileToSendToDC
+                    Utils::printCriticalErrorMsg(
-                                << "TOO BIG (" << fi.size() << "BYTES)";
+                        QString("SIZE OF %1 TOO BIG (%2 BYTES)")
+                            .arg(jsFileToSendToDC).arg(fi.size()));
                 }
             } else {
-                qCritical() << "CANNOT OPEN" << jsFileToSendToDC << "FOR READING";
+                Utils::printCriticalErrorMsg(
+                    QString("CAN NOT OPEN ") + jsFileToSendToDC + " FOR READING");
             }
         } else {
-            qCritical() << jsFileToSendToDC << "DOES NOT EXIST";
+            Utils::printCriticalErrorMsg(
+                QString(jsFileToSendToDC) + " DOES NOT EXIST");
         }
     }
 
@@ -518,40 +716,9 @@ void Update::finished(int /*exitCode*/, QProcess::ExitStatus /*exitStatus*/) {
     disconnect(p, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(readyReadStandardError()));
 }
 
-bool Update::doUpdate(int &displayIndex, QStringList const &filesToWorkOn) {
+QStringList Update::getDcSoftAndHardWareVersion() {
-    //
+    m_hw->dc_autoRequest(true);
-    // ACHTUNG !!!
+    QThread::sleep(1); // make sure the timer-slots are active
-    //
-    return true;
-
-    bool serialOpened = false;
-    bool serialOpen = false;
-
-    if (!serialOpen) {
-        if (!isSerialOpen()) { // open serial only if not already open
-            if ((serialOpened = openSerial(baudrateMap.value(m_baudrate), m_baudrate, m_serialInterface)) == false) {
-                qCritical() << "CANNOT OPEN" << m_serialInterface << "(BAUDRATE="
-                            << m_baudrate << ")";
-                return false;
-            }
-        }
-        serialOpen = true;
-        qInfo() << "SERIAL OPEN" << m_serialInterface << "(BAUDRATE=" << m_baudrate << ")";
-    }
-
-    bool res = false;
-    QList<QString>::const_iterator it;
-    for (it = filesToWorkOn.cbegin(); it != filesToWorkOn.cend(); ++it) {
-        m_worker->startProgressLoop();
-        QString fToWorkOn = (*it).trimmed();
-        fToWorkOn = QDir::cleanPath(m_customerRepository + QDir::separator() + fToWorkOn);
-
-        static const QRegularExpression version("^.*dc2c[.][0-9][0-9][.][0-9][0-9][.]bin.*$");
-        if (fToWorkOn.contains(version)) {
-
-            qInfo() << QString(80, '*');
-            qInfo() << "DO-UPDATE FILE-TO-WORK-ON" << fToWorkOn;
-            qInfo() << QString(80, '*');
 
     for (int i=0; i < 3; ++i) { // send explicit reuests to get
                                 // current SW/HW-versions
@@ -560,36 +727,58 @@ bool Update::doUpdate(int &displayIndex, QStringList const &filesToWorkOn) {
         QThread::sleep(1);
     }
 
-            QString const hwVersion = m_hw->dc_getHWversion().toLower();
+    QString const &hwVersion = m_hw->dc_getHWversion().toLower().trimmed();
-            QString const fwVersion = m_hw->dc_getSWversion().toLower();
+    QString const &swVersion = m_hw->dc_getSWversion().toLower().trimmed();
 
-            qInfo() << "current dc-hardware-version" << hwVersion;
+    m_hw->dc_autoRequest(false);
-            qInfo() << "current dc-firmware-version" << fwVersion;
+    QThread::sleep(1); // make sure the timer-slots are inactive
+
+    if (!hwVersion.isEmpty() && !swVersion.isEmpty()) {
+        return QStringList() << hwVersion << swVersion;
+    }
+
+    return QStringList() << "DC HW-version not available"
+                         << "DC SW-version not available";
+}
+
+bool Update::doUpdate(int &displayIndex, QStringList const &filesToWorkOn) {
+    int tries = 20;
+    while (!m_hw->sys_areDCdataValid()) { // must deliver 'true', only then are all
+                                          // data from hwapi valid
+        if (--tries < 0) {
+            qCritical() << "ERROR!!! DC DATA NOT VALID -> CA-MASTER-PLUGIN NOT CONNECTED";
+            return false;
+        }
+        m_hw->dc_autoRequest(true);
+        QThread::msleep(500);
+    }
+
+    bool res = false;
+    QList<QString>::const_iterator it;
+    for (it = filesToWorkOn.cbegin(); it != filesToWorkOn.cend(); ++it) {
+        m_worker->startProgressLoop();
+        QString const &fToWorkOn = QDir::cleanPath(m_customerRepository + QDir::separator() + it->trimmed());
+#if UPDATE_DC == 1
+        static const QRegularExpression version("^.*dc2c[.][0-9]{1,2}[.][0-9]{1,2}[.]bin.*$");
+        if (fToWorkOn.contains(version)) {
+            Utils::printInfoMsg("DO-UPDATE FILE-TO-WORK-ON " + fToWorkOn);
 
             QFile fn(fToWorkOn);
             QFileInfo finfo(fn);
             if (!fn.exists()) { // check for broken link
-                qCritical() << QString(80, '*');
+                Utils::printCriticalErrorMsg("DO-UPDATE FILE-TO-WORK-ON "
-                qCritical() << "FILE-TO-WORK-ON" << fn << "DOES NOT EXIST";
+                    + fToWorkOn + " DOES NOT EXIST");
-                qCritical() << QString(80, '*');
                 res = false;
             } else {
-                if (false) {
+                bool updateBinaryRes = true;
-                //if (fwVersion.startsWith(linkTarget.completeBaseName())) {
-                //    qCritical() << "current dc-firmware-version" << fwVersion
-                //                << "already installed";
-                //    res = false;
-                } else {
-                    res = true;
 
                 qInfo() << "DOWNLOADING" << finfo.completeBaseName() << "TO DC";
-#if UPDATE_DC == 1
                 m_hw->dc_autoRequest(false);// default: turn auto-request setting off
                 QThread::sleep(1);          // wait to be sure that there are no more
                                             // commands sent to dc-hardware
                 qInfo() << "SET AUTO-REQUEST=FALSE";
 
-                    if ((res = updateBinary(fToWorkOn.toStdString().c_str())) == true) {
+                if ((updateBinaryRes = updateBinary(fToWorkOn.toStdString().c_str())) == true) {
                     qCritical() << "downloaded binary" << fToWorkOn;
                     ++displayIndex;
                     emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(2, ' ') + QString(")")
@@ -599,19 +788,23 @@ bool Update::doUpdate(int &displayIndex, QStringList const &filesToWorkOn) {
 
                 m_hw->dc_autoRequest(true); // turn auto-request setting on
                 qInfo() << "SET AUTO-REQUEST=TRUE";
-                    qInfo() << "WAIT 10 SECS TO RECEIVE RESPONSES...";
 
-                    QThread::sleep(10); // wait to be sure that responses
+                QStringList const &versions = Update::getDcSoftAndHardWareVersion();
-                                        // have been received
+                if (versions.size() >= 2) {
-                    qInfo() << "updated dc-hardware-version" << m_hw->dc_getHWversion();
+                    if (updateBinaryRes == true) {
-                    qInfo() << "updated dc-firmware-version" << m_hw->dc_getSWversion();
+                        qInfo() << "dc-hardware-version (UPDATED)" << versions[0];
+                        qInfo() << "dc-firmware-version (UPDATED)" << versions[1];
+                    } else {
+                        qInfo() << "dc-hardware-version (NOT UPDATED)" << versions[0];
+                        qInfo() << "dc-firmware-version (NOT UPDATED)" << versions[1];
+                    }
+                }
+                res = updateBinaryRes;
+            }
 #endif
-                }
+        if (fToWorkOn.contains("DC2C_print", Qt::CaseInsensitive)
-            }
-        } else if (fToWorkOn.contains("DC2C_print", Qt::CaseInsensitive)
          && fToWorkOn.endsWith(".json", Qt::CaseInsensitive)) {
             res = true;
-#if UPDATE_PRINTER_TEMPLATES == 1
             int i = fToWorkOn.indexOf("DC2C_print", Qt::CaseInsensitive);
             int const templateIdx = fToWorkOn.mid(i).midRef(10, 2).toInt();
             if ((templateIdx < 1) || (templateIdx > 32)) {
@@ -619,56 +812,52 @@ bool Update::doUpdate(int &displayIndex, QStringList const &filesToWorkOn) {
                 res = false;
             } else {
                 if ((res = updatePrinterTemplate(templateIdx, fToWorkOn))) {
-                    qInfo() << "downloaded printer template"<< fToWorkOn;
+                    Utils::printInfoMsg(
+                        QString("DOWNLOADED PRINTER TEMPLATE %1 WITH INDEX=%2")
+                            .arg(fToWorkOn)
+                            .arg(templateIdx));
                     ++displayIndex;
-                    emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(2, ' ') + QString(")")
+                    emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(3, ' ') + QString(")")
                           + QString(" Update ") + QFileInfo(fToWorkOn).fileName(),
                             Worker::UPDATE_STEP_DONE);
                 }
             }
-#endif
         } else if (fToWorkOn.contains("DC2C_cash", Qt::CaseInsensitive)
                 && fToWorkOn.endsWith(".json", Qt::CaseInsensitive)) {
             res = true;
-#if UPDATE_CASH_TEMPLATE == 1
             if ((res = updateCashConf(fToWorkOn))) {
-                qInfo() << "downloaded cash template"<< fToWorkOn;
+                Utils::printInfoMsg(QString("DOWNLOADED CASH TEMPLATE %1").arg(fToWorkOn));
                 ++displayIndex;
-                emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(2, ' ') + QString(")")
+                emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(3, ' ') + QString(")")
                       + QString(" Update ") + QFileInfo(fToWorkOn).fileName(),
                         Worker::UPDATE_STEP_DONE);
             }
-#endif
         } else if (fToWorkOn.contains("DC2C_conf", Qt::CaseInsensitive)
                 && fToWorkOn.endsWith(".json", Qt::CaseInsensitive)) {
             res = true;
-#if UPDATE_CONF_TEMPLATE == 1
             if ((res= updateConfig(fToWorkOn))) {
-                qInfo() << "downloaded config template"<< fToWorkOn;
+                Utils::printInfoMsg(QString("DOWNLOADED CONFIG TEMPLATE %1").arg(fToWorkOn));
                 ++displayIndex;
-                emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(2, ' ') + QString(")")
+                emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(3, ' ') + QString(")")
                       + QString(" Update ") + QFileInfo(fToWorkOn).fileName(),
                         Worker::UPDATE_STEP_DONE);
             }
-#endif
         } else if (fToWorkOn.contains("DC2C_device", Qt::CaseInsensitive)
                 && fToWorkOn.endsWith(".json", Qt::CaseInsensitive)) {
             res = true;
-#if UPDATE_DEVICE_TEMPLATE == 1
             if ((res = updateDeviceConf(fToWorkOn))) {
-                qInfo() << "downloaded device template"<< fToWorkOn;
+                Utils::printInfoMsg(QString("DOWNLOADED DEVICE TEMPLATE %1").arg(fToWorkOn));
                 ++displayIndex;
-                emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(2, ' ') + QString(")")
+                emit m_worker->appendText(QString("\n(") + QString("%1").arg(displayIndex).rightJustified(3, ' ') + QString(")")
                       + QString(" Update ") + QFileInfo(fToWorkOn).fileName(),
                         Worker::UPDATE_STEP_DONE);
             }
-#endif
         } else {
             qCritical() << "UNKNOWN JSON FILE NAME" << fToWorkOn;
             res = false;
         }
-        m_worker->stopProgressLoop();
+        // m_worker->stopProgressLoop();
-        m_worker->setProgress(100);
+        // m_worker->setProgress(100);
 
         if (res == false) {
             break;

update.h

@@ -7,6 +7,7 @@
 #include <QDir>
 #include <QByteArray>
 #include <QProcess>
+#include <QPluginLoader>
 
 #include "plugins/interfaces.h"
 
@@ -20,30 +21,35 @@ class Worker;
 class Update : public QObject {
     Q_OBJECT
 
-    hwinf *m_hw;
+    hwinf *m_hw = nullptr;
-    Worker *m_worker;
+    Worker *m_worker = nullptr;
     char const *m_serialInterface;
     char const *m_baudrate;
     QString m_customerRepository;
     QString m_customerNrStr;
     QString m_branchName;
+    QString m_pluginName;
     QString m_workingDir;
     bool m_maintenanceMode;
     bool m_dryRun;
 
+    static QPluginLoader pluginLoader;
+
 public:
     enum class DownloadResult {OK, ERROR, TIMEOUT, NOP};
     enum class FileTypeJson {CONFIG=1, DEVICE=2, CASH=3, SERIAL=4, TIME=5, PRINTER=6};
 
     static hwinf *loadDCPlugin(QDir const &plugInDir, QString const &fn);
+    static bool unloadDCPlugin();
     static QStringList split(QString line, QChar sep = ',');
 
 
-    explicit Update(hwinf *hw,
+    explicit Update(Worker *worker,
-                    Worker *worker,
                     QString customerRepository,
                     QString customerNrStr,
                     QString branchName,
+                    QString plugInDir,
+                    QString pluginName,
                     QString workingDir,
                     bool dryRun = false,
                     QObject *parent = nullptr,
@@ -52,6 +58,9 @@ public:
     virtual ~Update() override;
     bool doUpdate(int &displayIndex, QStringList const &linesToWorkOn);
 
+    hwinf *hw() { return m_hw; }
+    hwinf const *hw() const { return m_hw; }
+
     //QString customerId() { return m_customerId; }
     //QString const customerId() const { return m_customerId; }
 
@@ -85,6 +94,7 @@ private:
     bool updateDeviceConf(QString jsFileToSendToDC);
     bool downloadJson(enum FileTypeJson type, int templateIdx,
                       QString jsFileToSendToDC) const;
+    QStringList getDcSoftAndHardWareVersion();
 
 private slots:
     void readyReadStandardOutput();

update_dc_event.cpp

@@ -0,0 +1,25 @@
+#include "update_dc_event.h"
+
+QEvent::Type UpdateDcEvent::customEventType = QEvent::None;
+
+UpdateDcEvent::UpdateDcEvent(QObject const *sender,
+                             UpdateStep updateStep,
+                             int count,
+                             QDateTime const &sendDateTime)
+    : QEvent(UpdateDcEvent::type())
+    , m_sender(sender)
+    , m_updateStep(updateStep)
+    , m_count(count)
+    , m_sendDateTime(sendDateTime) {
+}
+
+UpdateDcEvent::~UpdateDcEvent() {
+}
+
+QEvent::Type UpdateDcEvent::type() {
+    if (customEventType == QEvent::None) {
+        int generatedType = QEvent::registerEventType();
+        customEventType = static_cast<QEvent::Type>(generatedType);
+    }
+    return customEventType;
+}

update_dc_event.h

@@ -0,0 +1,40 @@
+#ifndef UPDATE_DC_EVENT_H_INCLUDED
+#define UPDATE_DC_EVENT_H_INCLUDED
+
+#include <QEvent>
+#include <QDateTime>
+
+class UpdateDcEvent : public QEvent {
+public:
+    enum UpdateStep { NONE, DC_REBOOT, BL_START, BL_CHECK, BL_CHECK_AFTER_STOP, BL_IS_UP, BL_IS_DOWN, BL_STOP};
+
+private:
+    QObject const *m_sender;
+    UpdateStep m_updateStep;
+    int m_count;
+    QDateTime m_sendDateTime;
+
+public:
+    explicit UpdateDcEvent(QObject const *sender, UpdateStep updateStep,
+                           int count,
+                           QDateTime const &sendDateTime = QDateTime::currentDateTime());
+    virtual ~UpdateDcEvent();
+    static QEvent::Type type();
+
+    QObject const *sender() { return m_sender; }
+    QObject const *sender() const { return m_sender; }
+
+    void setUpdateStep(UpdateStep updateStep) { m_updateStep = updateStep; }
+    UpdateStep updateStep() { return m_updateStep; }
+    UpdateStep updateStep() const { return m_updateStep; }
+    int count() const { return m_count; }
+    void setCount(int count) { m_count = count; }
+    QDateTime &sendDateTime() { return m_sendDateTime; }
+    QDateTime const &sendDateTime() const { return m_sendDateTime; }
+
+private:
+    static QEvent::Type customEventType;
+};
+
+
+#endif // PROGRESS_EVENT_H_INCLUDED

utils.cpp

@@ -1,9 +1,20 @@
 #include "utils.h"
 #include "message_handler.h"
+#include "git/git_client.h"
+
+
+#if defined (Q_OS_UNIX) || defined (Q_OS_LINUX)
+#include "unistd.h"
+#endif
 
 #include <QFile>
 #include <QTextStream>
 #include <QDebug>
+#include <QDir>
+#include <QDirIterator>
+#include <QRegularExpression>
+
+#include <fstream>
 
 int Utils::read1stLineOfFile(QString fileName) {
     QFile f(fileName);
@@ -35,17 +46,90 @@ QString Utils::zoneName(quint8 i) {
     return "N/A";
 }
 
-void Utils::printCriticalErrorMsg(QString const &errorMsg) {
+void Utils::printCriticalErrorMsg(QString const &errorMsg, bool upper, bool lower) {
-    qCritical() << QString(80, '!');
+    if (upper) qCritical() << QString(80, 'E');
+
     qCritical() << errorMsg;
-    qCritical() << QString(80, '!');
+
+    if (lower) qCritical() << QString(80, 'E');
 }
 
-void Utils::printInfoMsg(QString const &infoMsg) {
+void Utils::printCriticalErrorMsg(QStringList const &errorMsg) {
-    qCritical() << QString(80, '=');
+    qCritical() << QString(80, 'E');
-    qCritical() << infoMsg;
+    for (int i = 0; i < errorMsg.size(); ++i) {
-    qCritical() << QString(80, '=');
+        qCritical() << errorMsg.at(i);
+    }
+    qCritical() << QString(80, 'E');
+}
 
+void Utils::printUpdateStatusMsg(QDebug debug, QStringList const &updateMsg) {
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+
+    Q_UNUSED(debug);
+
+    for (int i = 0; i < updateMsg.size(); ++i) {
+        qInfo() << updateMsg.at(i);
+    }
+
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+}
+
+void Utils::printUpdateStatusMsg(QStringList const &updateMsg) {
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+
+    for (int i = 0; i < updateMsg.size(); ++i) {
+        qCritical() << updateMsg.at(i);
+    }
+
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+}
+
+void Utils::printUpdateStatusMsg(QString const &updateMsg, bool upper, bool lower) {
+    if (upper) qCritical() << QString(80, 'U');
+
+    qCritical() << updateMsg;
+
+    if (lower) qCritical() << QString(80, 'U');
+}
+
+void Utils::printUpdateStatusMsg(QDebug debug, QString const &updateMsg,
+                                 bool upper, bool lower) {
+    if (upper) debug << QString(80, 'U');
+
+    qInfo() << updateMsg;
+
+    if (lower) debug << QString(80, 'U');
+
+}
+
+void Utils::printInfoMsg(QString const &infoMsg, bool upper, bool lower) {
+    if (upper) qCritical() << QString(80, 'I');
+
+    qCritical() << infoMsg;
+
+    if (lower) qCritical() << QString(80, 'I');
+}
+
+void Utils::printInfoMsg(QStringList const &infoMsg) {
+    //if (infoMsg.size() > 1) {
+    //    qCritical() << QString(80, 'I');
+    //}
+
+    for (int i = 0; i < infoMsg.size(); ++i) {
+        qCritical() << infoMsg.at(i);
+    }
+
+    //if (infoMsg.size() > 1) {
+    //    qCritical() << QString(80, 'I');
+    //}
 }
 
 void Utils::printLineEditInfo(QStringList const &lines) {
@@ -77,3 +161,144 @@ QString Utils::getTariffLoadTime(QString fileName) {
     return "N/A";
 }
 
+QString Utils::rstrip(QString const &str) {
+    int n = str.size() - 1;
+    for (; n >= 0; --n) {
+        if (!str.at(n).isSpace()) {
+            return str.left(n + 1);
+        }
+    }
+    return "";
+}
+
+bool Utils::sameFilesInDirs(QDir const &dir1, QDir const &dir2,
+                            QStringList const &nameFilters) {
+    if (!dir1.exists()) {
+        printCriticalErrorMsg(dir1.dirName() + " DOES NOT EXIST");
+        return false;
+    }
+    if (!dir2.exists()) {
+        printCriticalErrorMsg(dir2.dirName() + " DOES NOT EXIST");
+        return false;
+    }
+    if (dir1.absolutePath() == dir2.absolutePath()) {
+        printCriticalErrorMsg(dir1.dirName() + " AND "+ dir2.dirName() + " HAVE SAME PATH");
+        return false;
+    }
+
+    // files, sorted by name
+    QFileInfoList const &lst1 = dir1.entryInfoList(nameFilters, QDir::Files, QDir::Name);
+    QFileInfoList const &lst2 = dir2.entryInfoList(nameFilters, QDir::Files, QDir::Name);
+
+    QStringList fileNameLst1{};
+    QStringList fileNameLst2{};
+    QListIterator<QFileInfo> i1(lst1);
+    while (i1.hasNext()) {
+        fileNameLst1 << i1.next().fileName();
+    }
+    QListIterator<QFileInfo> i2(lst2);
+    while (i2.hasNext()) {
+        fileNameLst2 << i2.next().fileName();
+    }
+
+    if (fileNameLst1.isEmpty()) {
+        qCritical() << "DIR1" << dir1.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+    if (fileNameLst2.isEmpty())  {
+        qCritical() << "DIR1" << dir2.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+    if (fileNameLst1 != fileNameLst2) {
+        printCriticalErrorMsg(dir1.dirName() + " AND " + dir2.dirName()
+                            + " DIFFER: [" + fileNameLst1.join(',') + "],["
+                            + fileNameLst2.join(',') + "]");
+        return false;
+    } else {
+        printInfoMsg(dir1.dirName() + " AND " + dir2.dirName()
+                    + " ARE EQUAL: [" + fileNameLst1.join(',') + "]");
+    }
+
+    QStringList gitBlobLst1{};
+    QStringList gitBlobLst2{};
+    QListIterator<QFileInfo> i3(lst1);
+    while (i3.hasNext()) {
+        gitBlobLst1 << GitClient::gitBlob(i3.next().fileName());
+    }
+    QListIterator<QFileInfo> i4(lst2);
+    while (i4.hasNext()) {
+        gitBlobLst2 << GitClient::gitBlob(i4.next().fileName());
+    }
+
+    if (gitBlobLst1.isEmpty()) {
+        qCritical() << "DIR1" << dir1.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+    if (gitBlobLst2.isEmpty())  {
+        qCritical() << "DIR1" << dir2.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+
+    if (gitBlobLst1 != gitBlobLst2) {
+        printCriticalErrorMsg(dir1.dirName() + " AND " + dir2.dirName()
+                            + " DIFFER: [" + gitBlobLst1.join(',') + "],["
+                            + gitBlobLst2.join(',') + "]");
+        return false;
+    } else {
+        printInfoMsg(dir1.dirName() + " AND " + dir2.dirName()
+                    + " CONTAIN SAME GIT-BLOBS FOR FILES: [" + fileNameLst1.join(',') + "]");
+
+    }
+
+    return true;
+}
+
+
+QString Utils::getParentName() { // get name of parent process
+    QString ppid = QString("/proc/%1/status").arg(getppid());
+    std::ifstream f(ppid.toStdString().c_str());
+    if (f.is_open()) {
+        std::string next;
+        while (std::getline(f, next)) {
+            QString line = QString(next.c_str()).simplified();
+            if (line.startsWith("Name")) {
+                int const idx = line.indexOf(QChar(':'));
+                if (idx != -1) {
+                    return line.mid(idx+1).trimmed();
+                }
+            }
+        }
+    }
+    return "";
+}
+
+bool Utils::isATBQTRunning() {
+    QDirIterator it("/proc",
+                    QStringList() << "status",
+                    QDir::Files,
+                    QDirIterator::Subdirectories);
+    while (it.hasNext()) {
+        QString const &nextStatusFile = it.next();
+        static const QRegularExpression re("^/proc/[0-9]{1,}/status");
+        QRegularExpressionMatch match = re.match(nextStatusFile);
+        if (match.hasMatch()) {
+            std::ifstream f(nextStatusFile.toStdString().c_str());
+            if (f.is_open()) {
+                std::string next;
+                while (std::getline(f, next)) {
+                    QString line = QString(next.c_str()).simplified();
+                    if (line.startsWith("Name")) {
+                        int const idx = line.indexOf(QChar(':'));
+                        if (idx != -1) {
+                            QString const binary = line.mid(idx+1).trimmed();
+                            if (binary == "ATBQT") {
+                                return true;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return false;
+}

utils.h

@@ -7,14 +7,29 @@
 #include <QFile>
 #include <QFileInfo>
 #include <QDateTime>
+#include <QDir>
+#include <QDebug>
 
 namespace Utils {
     int read1stLineOfFile(QString fileName);
     QString zoneName(quint8 i);
-    void printCriticalErrorMsg(QString const &errorMsg);
+    void printCriticalErrorMsg(QString const &errorMsg, bool upper=false, bool lower=false);
-    void printInfoMsg(QString const &infoMsg);
+    void printCriticalErrorMsg(QStringList const &errorMsg);
+    void printInfoMsg(QString const &infoMsg, bool upper=false, bool lower=false);
+    void printInfoMsg(QStringList const &infoMsg);
+    void printUpdateStatusMsg(QDebug debug, QStringList const &updateMsg);
+    void printUpdateStatusMsg(QStringList const &updateMsg);
+    void printUpdateStatusMsg(QString const &updateMsg, bool upper=false, bool lower=false);
+    void printUpdateStatusMsg(QDebug debug, QString const &updateMsg, bool upper=false, bool lower=false);
     void printLineEditInfo(QStringList const &lines);
     QString getTariffLoadTime(QString fileName);
+    QString rstrip(QString const &str);
+    bool sameFilesInDirs(QDir const &dir1, QDir const &dir2,
+                         QStringList const &nameFilters = {"*.json"});
+
+
+    QString getParentName();
+    bool isATBQTRunning();
 }
 
 #endif // UTILS_H_INCLUDED