Initial import

1 files changed, 45 insertions, 0 deletions

diff --git a/genindex/thread.c b/genindex/thread.c
new file mode 100644
index 0000000..6b7ea0f
--- /dev/null
+++ b/genindex/thread.c
@@ -0,0 +1,45 @@
+/*
+ * thread.c: A simple thread base class
+ *
+ * See the main source file 'vdr.c' for copyright information and
+ * how to reach the author.
+ *
+ * $Id: thread.c,v 1.1 2010/08/18 21:27:14 richard Exp $
+ *
+ * This was taken from the VDR package, which was released under the GPL.
+ * Stripped down to make the PES parser happy
+ */
+
+#include "thread.h"
+#include <unistd.h>
+
+// --- cMutex ----------------------------------------------------------------
+
+cMutex::cMutex(void)
+{
+  lockingPid = 0;
+  locked = 0;
+  pthread_mutex_init(&mutex, NULL);
+}
+
+cMutex::~cMutex()
+{
+  pthread_mutex_destroy(&mutex);
+}
+
+void cMutex::Lock(void)
+{
+  if (getpid() != lockingPid || !locked) {
+     pthread_mutex_lock(&mutex);
+     lockingPid = getpid();
+     }
+  locked++;
+}
+
+void cMutex::Unlock(void)
+{
+ if (!--locked) {
+    lockingPid = 0;
+    pthread_mutex_unlock(&mutex);
+    }
+}