From f74aa1e9a6cf8cf827e4df0eebbe396d7fc5a490 Mon Sep 17 00:00:00 2001
From: Daniel Molkentin <danimo@owncloud.com>
Date: Thu, 4 Apr 2013 17:14:38 +0200
Subject: [PATCH] terminate if more than one thread is being started.

---
 src/mirall/csyncthread.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/mirall/csyncthread.cpp b/src/mirall/csyncthread.cpp
index bc48bf40ab..915c3ef845 100644
--- a/src/mirall/csyncthread.cpp
+++ b/src/mirall/csyncthread.cpp
@@ -26,6 +26,8 @@
 #include <unistd.h>
 #endif
 
+#include <assert.h>
+
 #include <QDebug>
 #include <QSslSocket>
 #include <QDir>
@@ -323,6 +325,12 @@ void CSyncThread::handleSyncError(CSYNC *ctx, const char *state) {
 
 void CSyncThread::startSync()
 {
+    qDebug() << Q_FUNC_INFO << "Sync started";
+
+    static int syncsRunning = 0;
+    syncsRunning++;
+    assert(syncsRunning == 1);
+
     qDebug() << "starting to sync " << qApp->thread() << QThread::currentThread();
     CSYNC *csync;
     int proxyPort = _proxy.port();
@@ -414,6 +422,8 @@ void CSyncThread::startSync()
             emit treeWalkResult(_syncedItems);
         }
     }
+    syncsRunning--;
+    qDebug() << Q_FUNC_INFO << "Sync finished";
 }
 
 void CSyncThread::setConnectionDetails( const QString &user, const QString &passwd, const QNetworkProxy &proxy )