merge changes for 3.7.2-release

1 files changed, 33 insertions, 10 deletions

diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp
index 1d56a52c32..e67d1bc57b 100755
--- a/indra/llcommon/llthread.cpp
+++ b/indra/llcommon/llthread.cpp
@@ -3,7 +3,7 @@
  *
  * $LicenseInfo:firstyear=2004&license=viewerlgpl$
  * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
+ * Copyright (C) 2010-2013, Linden Research, Inc.
  * 
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -67,7 +67,8 @@ LL_COMMON_API void assert_main_thread()
 	static U32 s_thread_id = LLThread::currentID();
 	if (LLThread::currentID() != s_thread_id)
 	{
-		llerrs << "Illegal execution outside main thread." << llendl;
+		llwarns << "Illegal execution from thread id " << (S32) LLThread::currentID()
+			<< " outside main thread " << (S32) s_thread_id << llendl;
 	}
 }
 
@@ -372,6 +373,36 @@ void LLMutex::lock()
 #endif
 }
 
+bool LLMutex::trylock()
+{
+	if(isSelfLocked())
+	{ //redundant lock
+		mCount++;
+		return true;
+	}
+	
+	apr_status_t status(apr_thread_mutex_trylock(mAPRMutexp));
+	if (APR_STATUS_IS_EBUSY(status))
+	{
+		return false;
+	}
+	
+#if MUTEX_DEBUG
+	// Have to have the lock before we can access the debug info
+	U32 id = LLThread::currentID();
+	if (mIsLocked[id] != FALSE)
+		llerrs << "Already locked in Thread: " << id << llendl;
+	mIsLocked[id] = TRUE;
+#endif
+
+#if LL_DARWIN
+	mLockingThread = LLThread::currentID();
+#else
+	mLockingThread = sThreadID;
+#endif
+	return true;
+}
+
 void LLMutex::unlock()
 {
 	if (mCount > 0)
@@ -495,15 +526,7 @@ LLThreadSafeRefCount::LLThreadSafeRefCount() :
 
 LLThreadSafeRefCount::LLThreadSafeRefCount(const LLThreadSafeRefCount& src)
 {
-	if (sMutex)
-	{
-		sMutex->lock();
-	}
 	mRef = 0;
-	if (sMutex)
-	{
-		sMutex->unlock();
-	}
 }
 
 LLThreadSafeRefCount::~LLThreadSafeRefCount()