First commit

1 files changed, 48 insertions, 0 deletions

diff --git a/src/TNetLib/Mutex.cc b/src/TNetLib/Mutex.cc
new file mode 100644
index 0000000..4ec956a
--- /dev/null
+++ b/src/TNetLib/Mutex.cc
@@ -0,0 +1,48 @@
+
+#include <pthread.h>
+#include <cerrno>
+
+#include "Error.h"
+#include "Mutex.h"
+
+namespace TNet {
+  
+
+Mutex::Mutex() {
+  if(0 != pthread_mutex_init(&mutex_,NULL)) 
+    KALDI_ERR << "Cannot initialize mutex";
+}
+
+
+Mutex::~Mutex() {
+  if(0 != pthread_mutex_destroy(&mutex_)) 
+    KALDI_ERR << "Cannot destroy mutex";
+}
+
+
+void Mutex::Lock() {
+  if(0 != pthread_mutex_lock(&mutex_))
+    KALDI_ERR << "Error on locking mutex";
+}
+
+ 
+bool Mutex::TryLock() {
+  int ret = pthread_mutex_lock(&mutex_);
+  switch (ret) {
+    case 0: return true;
+    case EBUSY: return false;
+    default: KALDI_ERR << "Error on try-locking mutex";
+  }
+  return 0;//make compiler not complain
+}
+
+
+void Mutex::Unlock() {
+  if(0 != pthread_mutex_unlock(&mutex_))
+    KALDI_ERR << "Error on unlocking mutex";
+}
+
+
+  
+}//namespace TNet
+