if not being run interactively, then use the main app loop

QEventLoop requires QCoreApplication is running; so when we don't
have one running the whole app, just start/stop the core app on
demand (from/for commands).

3 files changed, 30 insertions, 4 deletions

diff --git a/akonadish/main.cpp b/akonadish/main.cpp
index 695fb82..bd85fb4 100644
--- a/akonadish/main.cpp
+++ b/akonadish/main.cpp
@@ -60,6 +60,7 @@ int main(int argc, char *argv[])
 //        JsonListener listener(syntax);
         }
 
+        State::setHasEventLoop(true);
         return app.exec();
     } else if (!interactive) {
         QTextStream inputStream(stdin);
diff --git a/akonadish/state.cpp b/akonadish/state.cpp
index 968c0ac..c9f9ee3 100644
--- a/akonadish/state.cpp
+++ b/akonadish/state.cpp
@@ -19,10 +19,13 @@
 
 #include "state.h"
 
+#include <QCoreApplication>
 #include <QDebug>
 #include <QEventLoop>
 #include <QTextStream>
 
+static bool s_hasEventLoop = false;
+
 class State::Private
 {
 public:
@@ -31,8 +34,17 @@ public:
     {
     }
 
+    QEventLoop *eventLoop()
+    {
+        if (!event) {
+            event = new QEventLoop;
+        }
+
+        return event;
+    }
+
     int debugLevel = 0;
-    QEventLoop eventLoop;
+    QEventLoop *event = 0;
     QTextStream outStream;
 };
 
@@ -76,8 +88,10 @@ unsigned int State::debugLevel() const
 
 int State::commandStarted() const
 {
-    if (!d->eventLoop.isRunning()) {
-        return d->eventLoop.exec();
+    if (!s_hasEventLoop) {
+        return QCoreApplication::exec();
+    } else if (!d->eventLoop()->isRunning()) {
+        return d->eventLoop()->exec();
     }
 
     return 0;
@@ -85,6 +99,15 @@ int State::commandStarted() const
 
 void State::commandFinished(int returnCode) const
 {
-    d->eventLoop.exit(returnCode);
+    if (!s_hasEventLoop) {
+        QCoreApplication::exit(returnCode);
+    } else {
+        d->eventLoop()->exit(returnCode);
+    }
+}
+
+void State::setHasEventLoop(bool evented)
+{
+    s_hasEventLoop = evented;
 }
 
diff --git a/akonadish/state.h b/akonadish/state.h
index eb07f56..1ba86dd 100644
--- a/akonadish/state.h
+++ b/akonadish/state.h
@@ -36,6 +36,8 @@ public:
     int commandStarted() const;
     void commandFinished(int returnCode = 0) const;
 
+    static void setHasEventLoop(bool evented);
+
 private:
     class Private;
     Private * const d;