llallocator.cpp
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- /**
- * @file llallocator.cpp
- * @brief Implementation of the LLAllocator class.
- *
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- *
- * Copyright (c) 2009-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "llallocator.h"
- #if LL_USE_TCMALLOC
- #include "google/heap-profiler.h"
- #include "google/commandlineflags_public.h"
- DECLARE_bool(heap_profile_use_stack_trace);
- //DECLARE_double(tcmalloc_release_rate);
- // static
- void LLAllocator::pushMemType(S32 type)
- {
- if(isProfiling())
- {
- PushMemType(type);
- }
- }
- // static
- S32 LLAllocator::popMemType()
- {
- if (isProfiling())
- {
- return PopMemType();
- }
- else
- {
- return -1;
- }
- }
- void LLAllocator::setProfilingEnabled(bool should_enable)
- {
- // NULL disables dumping to disk
- static char const * const PREFIX = NULL;
- if(should_enable)
- {
- HeapProfilerSetUseStackTrace(false);
- HeapProfilerStart(PREFIX);
- }
- else
- {
- HeapProfilerStop();
- }
- }
- // static
- bool LLAllocator::isProfiling()
- {
- return IsHeapProfilerRunning();
- }
- std::string LLAllocator::getRawProfile()
- {
- // *TODO - fix google-perftools to accept an buffer to avoid this
- // malloc-copy-free cycle.
- char * buffer = GetHeapProfile();
- std::string ret = buffer;
- free(buffer);
- return ret;
- }
- #else // LL_USE_TCMALLOC
- //
- // stub implementations for when tcmalloc is disabled
- //
- // static
- void LLAllocator::pushMemType(S32 type)
- {
- }
- // static
- S32 LLAllocator::popMemType()
- {
- return -1;
- }
- void LLAllocator::setProfilingEnabled(bool should_enable)
- {
- }
- // static
- bool LLAllocator::isProfiling()
- {
- return false;
- }
- std::string LLAllocator::getRawProfile()
- {
- return std::string();
- }
- #endif // LL_USE_TCMALLOC
- LLAllocatorHeapProfile const & LLAllocator::getProfile()
- {
- mProf.mLines.clear();
- // *TODO - avoid making all these extra copies of things...
- std::string prof_text = getRawProfile();
- //std::cout << prof_text << std::endl;
- mProf.parse(prof_text);
- return mProf;
- }