Save test files.

master/main.cpp

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+#include <QCoreApplication>
+#include <QApplication>
+#include <QDebug>
+#include <QTimer>
+#include <QFileInfo>
+
+#ifdef __linux__
+#include <stdlib.h> // system()
+#include <unistd.h>
+#endif
+
+#include "message_handler.h"
+#include "plugins/interfaces.h"
+
+#include <memory>
+#include <QSharedMemory>
+#include <QRunnable>
+#include <QThreadPool>
+#include <QDir>
+#include <QProcess>
+#include <QCommandLineParser>
+#include <QStandardPaths>
+#include <QMainWindow>
+
+#include <QThread>
+#include <QtWidgets>
+#include <QScopedPointer>
+
+#ifdef PTU5
+#define SERIAL_PORT "ttymxc2"
+#else
+#define SERIAL_PORT "ttyUSB0"
+#endif
+
+
+QPluginLoader pluginLoader;
+
+static hwinf *loadDCPlugin(QDir const &plugInDir, QString const &fname) {
+    hwinf *hw = nullptr;
+    if (plugInDir.exists()) {
+        QString pluginLibName(fname);
+        pluginLibName = plugInDir.absoluteFilePath(pluginLibName);
+        QFileInfo info(pluginLibName);
+        if (info.exists()) {
+            pluginLibName = plugInDir.absoluteFilePath(pluginLibName);
+            pluginLoader.setFileName(pluginLibName);
+            // static QPluginLoader pluginLoader(pluginLibName);
+            if (!pluginLoader.load()) {
+                qCritical() << "in directory" << plugInDir.absolutePath();
+                qCritical() << "cannot load plugin" << pluginLoader.fileName();
+                qCritical() << pluginLoader.errorString();
+                exit(-1);
+            }
+            if (!pluginLoader.isLoaded()) {
+                qCritical() << pluginLoader.errorString();
+                exit(-2);
+            }
+            QObject *plugin = pluginLoader.instance();
+            if (!plugin) {
+                qCritical() << "cannot start instance";
+                exit(-3);
+            }
+            if (! (hw = qobject_cast<hwinf *>(plugin))) {
+                qCritical() << "cannot cast plugin" << plugin << "to hwinf";
+                exit(-4);
+            }
+        } else {
+            qCritical() << pluginLibName << "does not exist";
+            exit(-5);
+        }
+    } else {
+        qCritical() << "plugins directory" << plugInDir.absolutePath()
+                    << "does not exist";
+        exit(-6);
+    }
+    return hw;
+}
+
+int main(int argc, char *argv[]) {
+
+    QByteArray const value = qgetenv("LC_ALL");
+    if (value != "C") {
+        qputenv("LC_ALL", "C");
+    }
+
+    openlog("DC-LIB-MASTER", LOG_PERROR | LOG_PID | LOG_CONS, LOG_USER);
+
+    QApplication a(argc, argv);
+    QApplication::setApplicationName("dc-lib-master");
+    QApplication::setApplicationVersion(APP_VERSION);
+
+    if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
+        atbInstallMessageHandler(atbDebugOutput);
+        setDebugLevel(LOG_NOTICE);
+    }
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Master for loading dc-library.");
+    parser.addHelpOption();
+    parser.addVersionOption();
+
+    QCommandLineOption pluginDirectoryOption(QStringList() << "plugin-directory" << "plugin-directory",
+        QCoreApplication::translate("main", "Where to find dc-plugin."),
+        QCoreApplication::translate("main", "directory"));
+    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 = "libCAslave.so";
+    pluginNameOption.setDefaultValue(pluginNameDefault);
+    parser.addOption(pluginNameOption);
+
+    // Process the actual command line arguments given by the user
+    parser.process(a);
+    QString plugInDir = parser.value(pluginDirectoryOption);
+    QString plugInName = parser.value(pluginNameOption);
+
+    QThread::currentThread()->setObjectName("main thread");
+    qInfo() << "Main thread" << QThread::currentThreadId();
+
+    hwinf *hw = loadDCPlugin(QDir(plugInDir), plugInName);
+
+    hw->dc_autoRequest(true);
+    hw->dc_openSerial(5, "115200", SERIAL_PORT, 1);
+
+    return a.exec();
+}

master/message_handler.cpp

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+#include "message_handler.h"
+
+#include <QDateTime>
+#include <cstring>
+#include <QString>
+#include <QFileInfo>
+#include <QMessageLogContext>
+
+
+static char const *DBG_NAME[] = { "DBG  ", "WARN ", "CRIT ", "FATAL", "INFO " };
+static bool installedMsgHandler = false;
+static int debugLevel = LOG_NOTICE;
+
+int getDebugLevel() { return debugLevel; }
+void setDebugLevel(int newDebugLevel) {
+    debugLevel = newDebugLevel;
+}
+
+bool messageHandlerInstalled() {
+    return installedMsgHandler;
+}
+
+QtMessageHandler atbInstallMessageHandler(QtMessageHandler handler) {
+    installedMsgHandler = (handler != 0);
+    static QtMessageHandler prevHandler = nullptr;
+    if (handler) {
+        prevHandler = qInstallMessageHandler(handler);
+        return prevHandler;
+    } else {
+        return qInstallMessageHandler(prevHandler);
+    }
+}
+
+///
+/// \brief Print message according to given debug level.
+///
+/// \note Install this function using qInstallMsgHandler().
+///
+///  int main(int argc, char **argv) {
+///     installMsgHandler(atbDebugOutput);
+///     QApplication app(argc, argv);
+///     ...
+///     return app.exec();
+///  }
+///
+#if (QT_VERSION > QT_VERSION_CHECK(5, 0, 0) && QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
+void atbDebugOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg) {
+    Q_UNUSED(context);
+    QString const localMsg = QString(DBG_NAME[type]) + msg.toLocal8Bit();
+
+    switch (debugLevel) {
+        case LOG_DEBUG: { // debug-level message
+            syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+        } break;
+        case LOG_INFO: { // informational message
+            if (type != QtDebugMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_NOTICE: { // normal, but significant, condition
+            if (type != QtDebugMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_WARNING: { // warning conditions
+            if (type != QtInfoMsg && type != QtDebugMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_ERR: { // error conditions
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_CRIT: { // critical conditions
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_ALERT: { // action must be taken immediately
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_EMERG: { // system is unusable
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        default: {
+            //fprintf(stderr, "%s No ErrorLevel defined! %s\n",
+            //    datetime.toStdString().c_str(), msg.toStdString().c_str());
+        }
+    }
+}
+#endif
+

master/message_handler.h

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+#ifndef MESSAGE_HANDLER_H_INCLUDED
+#define MESSAGE_HANDLER_H_INCLUDED
+
+#include <QtGlobal>
+#ifdef __linux__
+#include <syslog.h>
+#endif
+
+int getDebugLevel();
+void setDebugLevel(int newDebugLevel);
+
+bool messageHandlerInstalled();
+QtMessageHandler atbInstallMessageHandler(QtMessageHandler handler);
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+// typedef void (*QtMessageHandler)(QtMsgType, const char *);
+void atbDebugOutput(QtMsgType type, const char *msg);
+#elif QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+// typedef void (*QtMessageHandler)(QtMsgType, const QMessageLogContext &, const QString &);
+void atbDebugOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg);
+#endif
+
+#endif // MESSAGE_HANDLER_H_INCLUDED

slave/main.cpp

@@ -0,0 +1,6 @@
+
+
+
+int main(int argc, char *argv[]) {
+    return 0;
+}