Improvements in the shutdown procedure (NT service does not crash on exit anymore, give two seconds to threads to exit properly).

git-svn-id: https://oreka.svn.sourceforge.net/svnroot/oreka/trunk@44 09dcff7a-b715-0410-9601-b79a96267cd0

1 files changed, 8 insertions, 4 deletions

diff --git a/orkaudio/ThreadSafeQueue.h b/orkaudio/ThreadSafeQueue.h
index 4fcc330..e050c85 100644
--- a/orkaudio/ThreadSafeQueue.h
+++ b/orkaudio/ThreadSafeQueue.h
@@ -61,13 +61,17 @@ template <class T> bool ThreadSafeQueue<T>::push(T &element)
 /** Pop and element from the queue, or blocks until one available */
 template <class T> T ThreadSafeQueue<T>::pop()
 {
-	m_semaphore.acquire();
-
+	ACE_Time_Value timeout(time(NULL)+2);
+	m_semaphore.acquire(&timeout);
 	MutexSentinel mutexSentinel(m_mutex);
 
-	T element = m_queue.front();
-	m_queue.pop();
+	T element;
 
+	if(m_queue.size() > 0)
+	{
+		element = m_queue.front();
+		m_queue.pop();
+	}
 	return element;
 }