From cccccbf6cca94a3eaf813b4468453160e91c332b Mon Sep 17 00:00:00 2001
From: Joe Zhao <ztuowen@gmail.com>
Date: Mon, 14 Apr 2014 08:14:45 +0800
Subject: First commit

---
 src/TNetLib/Mutex.cc | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/TNetLib/Mutex.cc

(limited to 'src/TNetLib/Mutex.cc')

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
+
-- 
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