C++ Thrift coding style changes

Summary: Make underscore for class members consistent


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@664818 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/concurrency/Mutex.cc b/lib/cpp/src/concurrency/Mutex.cc
index 416341e..1f116a3 100644
--- a/lib/cpp/src/concurrency/Mutex.cc
+++ b/lib/cpp/src/concurrency/Mutex.cc
@@ -13,32 +13,32 @@
  */
 class Mutex::impl {
  public:
-  impl() : initialized(false) {
-    assert(pthread_mutex_init(&_pthread_mutex, NULL) == 0);
-    initialized = true;
+  impl() : initialized_(false) {
+    assert(pthread_mutex_init(&pthread_mutex_, NULL) == 0);
+    initialized_ = true;
   }
 
   ~impl() {
-    if (initialized) {
-      initialized = false;
-      assert(pthread_mutex_destroy(&_pthread_mutex) == 0);
+    if (initialized_) {
+      initialized_ = false;
+      assert(pthread_mutex_destroy(&pthread_mutex_) == 0);
     }
   }
 
-  void lock() const { pthread_mutex_lock(&_pthread_mutex); }
+  void lock() const { pthread_mutex_lock(&pthread_mutex_); }
 
-  void unlock() const { pthread_mutex_unlock(&_pthread_mutex); }
+  void unlock() const { pthread_mutex_unlock(&pthread_mutex_); }
 
  private:
-  mutable pthread_mutex_t _pthread_mutex;
-  mutable bool initialized;
+  mutable pthread_mutex_t pthread_mutex_;
+  mutable bool initialized_;
 };
 
-Mutex::Mutex() : _impl(new Mutex::impl()) {}
+Mutex::Mutex() : impl_(new Mutex::impl()) {}
 
-void Mutex::lock() const { _impl->lock(); }
+void Mutex::lock() const { impl_->lock(); }
 
-void Mutex::unlock() const { _impl->unlock(); }
+void Mutex::unlock() const { impl_->unlock(); }
 
 }}} // facebook::thrift::concurrency