llmemory.h cleanup. pulled llpointer, refcounter, smartpointer, singleton and safe handle out into their own headers. llmemory.h drags all those headers in for legacy support until everything else is cleaned up. getCurrentRSS() moved into LLMemory. getWorkingSetSize() added to LLMemory.

2011-07-29 20:40:08 -05:00
parent 1e92e734d8
commit a237cb9cad
14 changed files with 898 additions and 464 deletions
--- a/indra/llcommon/llrefcount.cpp
+++ b/indra/llcommon/llrefcount.cpp
@@ -0,0 +1,164 @@
+/** 
+ * @file llrefcount.cpp
+ * @brief Base class for reference counted objects for use with LLPointer
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, 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
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+#include "linden_common.h"
+
+#include "llrefcount.h"
+
+#include "llerror.h"
+
+#if LL_REF_COUNT_DEBUG
+#include "llthread.h"
+#include "llapr.h"
+#endif
+
+LLRefCount::LLRefCount(const LLRefCount& other)
+:	mRef(0)
+{
+#if LL_REF_COUNT_DEBUG
+	if(gAPRPoolp)
+	{
+		mMutexp = new LLMutex(gAPRPoolp) ;
+	}
+	else
+	{
+		mMutexp = NULL ;
+	}
+	mCrashAtUnlock = FALSE ;
+#endif
+}
+
+LLRefCount& LLRefCount::operator=(const LLRefCount&)
+{
+	// do nothing, since ref count is specific to *this* reference
+	return *this;
+}
+
+LLRefCount::LLRefCount() :
+	mRef(0)
+{
+#if LL_REF_COUNT_DEBUG
+	if(gAPRPoolp)
+	{
+		mMutexp = new LLMutex(gAPRPoolp) ;
+	}
+	else
+	{
+		mMutexp = NULL ;
+	}
+	mCrashAtUnlock = FALSE ;
+#endif
+}
+
+LLRefCount::~LLRefCount()
+{ 
+	if (mRef != 0)
+	{
+		llerrs << "deleting non-zero reference" << llendl;
+	}
+
+#if LL_REF_COUNT_DEBUG
+	if(gAPRPoolp)
+	{
+		delete mMutexp ;
+	}
+#endif
+}
+
+#if LL_REF_COUNT_DEBUG
+void LLRefCount::ref() const
+{ 
+	if(mMutexp)
+	{
+		if(mMutexp->isLocked()) 
+		{
+			mCrashAtUnlock = TRUE ;
+			llerrs << "the mutex is locked by the thread: " << mLockedThreadID 
+				<< " Current thread: " << LLThread::currentID() << llendl ;
+		}
+
+		mMutexp->lock() ;
+		mLockedThreadID = LLThread::currentID() ;
+
+		mRef++; 
+
+		if(mCrashAtUnlock)
+		{
+			while(1); //crash here.
+		}
+		mMutexp->unlock() ;
+	}
+	else
+	{
+		mRef++; 
+	}
+} 
+
+S32 LLRefCount::unref() const
+{
+	if(mMutexp)
+	{
+		if(mMutexp->isLocked()) 
+		{
+			mCrashAtUnlock = TRUE ;
+			llerrs << "the mutex is locked by the thread: " << mLockedThreadID 
+				<< " Current thread: " << LLThread::currentID() << llendl ;
+		}
+
+		mMutexp->lock() ;
+		mLockedThreadID = LLThread::currentID() ;
+		
+		llassert(mRef >= 1);
+		if (0 == --mRef) 
+		{
+			if(mCrashAtUnlock)
+			{
+				while(1); //crash here.
+			}
+			mMutexp->unlock() ;
+
+			delete this; 
+			return 0;
+		}
+
+		if(mCrashAtUnlock)
+		{
+			while(1); //crash here.
+		}
+		mMutexp->unlock() ;
+		return mRef;
+	}
+	else
+	{
+		llassert(mRef >= 1);
+		if (0 == --mRef) 
+		{
+			delete this; 
+			return 0;
+		}
+		return mRef;
+	}
+}	
+#endif