ivigenerator: Add a lock file to start the server only once

Change-Id: I4200faffdb29f3296e401af94506dee7d62607e4
Fixes: AUTOSUITE-987
Reviewed-by: Egor Nemtsev <enemtsev@luxoft.com>
 

2 files changed, 18 insertions, 0 deletions

diff --git a/src/tools/ivigenerator/templates_server_qtro_simulator/main.cpp.tpl b/src/tools/ivigenerator/templates_server_qtro_simulator/main.cpp.tpl
index 042f8c5..dfed9b6 100644
--- a/src/tools/ivigenerator/templates_server_qtro_simulator/main.cpp.tpl
+++ b/src/tools/ivigenerator/templates_server_qtro_simulator/main.cpp.tpl
@@ -38,6 +38,8 @@
 #}
 {% include "common/generated_comment.cpp.tpl" %}
 #include <QCoreApplication>
+#include <QDir>
+#include <QLockFile>
 
 {% for interface in module.interfaces %}
 #include "{{interface|lower}}backend.h"
@@ -51,6 +53,13 @@ int main(int argc, char *argv[])
 {
     QCoreApplication app(argc, argv);
 
+    // single instance guard
+    QLockFile lockFile(QStringLiteral("%1/%2.lock").arg(QDir::tempPath(), app.applicationName()));
+    if (!lockFile.tryLock(100)) {
+        qCritical("%s already running, aborting...", qPrintable(app.applicationName()));
+        return EXIT_FAILURE;
+    }
+
     auto simulationEngine = new QIviSimulationEngine(QStringLiteral("{{module.name|lower}}"));
 
 {% for interface in module.interfaces %}
diff --git a/src/tools/media-simulation-server/main.cpp b/src/tools/media-simulation-server/main.cpp
index 04fcda7..914e904 100644
--- a/src/tools/media-simulation-server/main.cpp
+++ b/src/tools/media-simulation-server/main.cpp
@@ -40,6 +40,8 @@
 ****************************************************************************/
 
 #include <QCoreApplication>
+#include <QDir>
+#include <QLockFile>
 
 #include "database_helper.h"
 
@@ -62,6 +64,13 @@ int main(int argc, char *argv[])
 {
     QCoreApplication app(argc, argv);
 
+    // single instance guard
+    QLockFile lockFile(QStringLiteral("%1/%2.lock").arg(QDir::tempPath(), app.applicationName()));
+    if (!lockFile.tryLock(100)) {
+        qCritical("%s already running, aborting...", qPrintable(app.applicationName()));
+        return EXIT_FAILURE;
+    }
+
     QString dbFile = mediaDatabaseFile();
     createMediaDatabase(dbFile);