From: boz <dev-null@apache.org>
Date: Wed, 15 Aug 2007 20:55:36 +0000 (+0000)
Subject: THRIFT: mutex trylock support
X-Git-Tag: 0.2.0~1268
X-Git-Url: https://source.supwisdom.com/gerrit/gitweb?a=commitdiff_plain;h=5362e70f8f3c58f0f1fc67ea0a8fc299c554e1bc;p=common%2Fthrift.git

THRIFT: mutex trylock support

Summary: add trylock support to the Mutex class

Reviewed By: mcslee

Test Plan: added trylock mutexes to foreman, walked through them in gdb
(behaved correctly) and then ran an entire sweep (behaved correctly)

Notes: slee ftw


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665204 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/lib/cpp/src/concurrency/Mutex.cpp b/lib/cpp/src/concurrency/Mutex.cpp
index 8f797958..695d5dc5 100644
--- a/lib/cpp/src/concurrency/Mutex.cpp
+++ b/lib/cpp/src/concurrency/Mutex.cpp
@@ -35,6 +35,8 @@ class Mutex::impl {
 
   void lock() const { pthread_mutex_lock(&pthread_mutex_); }
 
+  bool trylock() const { return (0 == pthread_mutex_trylock(&pthread_mutex_)); }
+
   void unlock() const { pthread_mutex_unlock(&pthread_mutex_); }
 
  private:
@@ -46,6 +48,8 @@ Mutex::Mutex() : impl_(new Mutex::impl()) {}
 
 void Mutex::lock() const { impl_->lock(); }
 
+bool Mutex::trylock() const { return impl_->trylock(); }
+
 void Mutex::unlock() const { impl_->unlock(); }
 
 /** 
diff --git a/lib/cpp/src/concurrency/Mutex.h b/lib/cpp/src/concurrency/Mutex.h
index 02accf90..72f75257 100644
--- a/lib/cpp/src/concurrency/Mutex.h
+++ b/lib/cpp/src/concurrency/Mutex.h
@@ -20,6 +20,7 @@ class Mutex {
   Mutex();
   virtual ~Mutex() {}
   virtual void lock() const;
+  virtual bool trylock() const;
   virtual void unlock() const;
 
  private: