1 files changed, 81 insertions, 0 deletions
diff --git a/libs/vdr/src/Mutex.cc b/libs/vdr/src/Mutex.cc
new file mode 100644
index 0000000..cb100c7
--- /dev/null
+++ b/libs/vdr/src/Mutex.cc
@@ -0,0 +1,81 @@
+/**
+ * File:      Mutex.cc
+ * Project:   libvdr - classes taken from vdr-project
+ * 
+ * from "Video Disk Recorder":
+ * 
+ * Copyright (C) 2000, 2003, 2006, 2008 Klaus Schmidinger
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * 
+ * The original author can be reached at kls@tvdr.de
+ * 
+ * The vdr project's page is at http://www.tvdr.de
+ * 
+ */
+#include <Mutex.h>
+
+cMutex::cMutex(void)
+{
+  locked = 0;
+  pthread_mutexattr_t attr;
+  pthread_mutexattr_init(&attr);
+  pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK_NP);
+  pthread_mutex_init(&mutex, &attr);
+}
+
+cMutex::~cMutex()
+{
+  pthread_mutex_destroy(&mutex);
+}
+
+void cMutex::Lock(void)
+{
+  pthread_mutex_lock(&mutex);
+  locked++;
+}
+
+void cMutex::Unlock(void)
+{
+ if (!--locked)
+    pthread_mutex_unlock(&mutex);
+}
+
+// --- cMutexLock ------------------------------------------------------------
+
+cMutexLock::cMutexLock(cMutex *Mutex)
+{
+  mutex = NULL;
+  locked = false;
+  Lock(Mutex);
+}
+
+cMutexLock::~cMutexLock()
+{
+  if (mutex && locked)
+     mutex->Unlock();
+}
+
+bool cMutexLock::Lock(cMutex *Mutex)
+{
+  if (Mutex && !mutex) {
+     mutex = Mutex;
+     Mutex->Lock();
+     locked = true;
+     return true;
+     }
+  return false;
+}