Don't enqueue equal events twice

Fix a race condition. This is what happened:
A file gets closes shortly after the last write, so it gets enqueued
twice. Since QQueue is a decendant of QList, calling erase on the
iterator makes the loop crash with SIGSEGV.

So check if the file is already in the queue before enqueuing.

1 files changed, 3 insertions, 1 deletions

diff --git a/smdirwatcher.cpp b/smdirwatcher.cpp
index 87d2eff..839b021 100644
--- a/smdirwatcher.cpp
+++ b/smdirwatcher.cpp
@@ -81,7 +81,9 @@ void SmDirWatcher::run(){
             goto out;
         }
         c = qMakePair(name, curEvent);
-        mDataQueue->enqueue(c);
+        if(!mDataQueue->contains(c)){
+            mDataQueue->enqueue(c);
+        }
         out:
         mSemUsed->release();
         i += sizeof(inotify_event) + e->len;