135 lines
2.8 KiB
C++
135 lines
2.8 KiB
C++
/**
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* @file llallocator.cpp
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* @brief Implementation of the LLAllocator class.
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*
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* $LicenseInfo:firstyear=2009&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "llallocator.h"
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#if LL_USE_TCMALLOC
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#include "google/heap-profiler.h"
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#include "google/commandlineflags_public.h"
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DECLARE_bool(heap_profile_use_stack_trace);
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//DECLARE_double(tcmalloc_release_rate);
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// static
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void LLAllocator::pushMemType(S32 type)
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{
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if(isProfiling())
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{
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PushMemType(type);
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}
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}
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// static
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S32 LLAllocator::popMemType()
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{
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if (isProfiling())
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{
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return PopMemType();
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}
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else
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{
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return -1;
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}
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}
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void LLAllocator::setProfilingEnabled(bool should_enable)
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{
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// NULL disables dumping to disk
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static char const * const PREFIX = NULL;
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if(should_enable)
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{
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HeapProfilerSetUseStackTrace(false);
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HeapProfilerStart(PREFIX);
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}
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else
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{
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HeapProfilerStop();
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}
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}
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// static
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bool LLAllocator::isProfiling()
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{
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return IsHeapProfilerRunning();
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}
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std::string LLAllocator::getRawProfile()
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{
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// *TODO - fix google-perftools to accept an buffer to avoid this
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// malloc-copy-free cycle.
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char * buffer = GetHeapProfile();
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std::string ret = buffer;
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free(buffer);
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return ret;
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}
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#else // LL_USE_TCMALLOC
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//
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// stub implementations for when tcmalloc is disabled
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//
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// static
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void LLAllocator::pushMemType(S32 type)
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{
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}
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// static
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S32 LLAllocator::popMemType()
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{
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return -1;
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}
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void LLAllocator::setProfilingEnabled(bool should_enable)
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{
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}
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// static
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bool LLAllocator::isProfiling()
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{
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return false;
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}
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std::string LLAllocator::getRawProfile()
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{
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return std::string();
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}
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#endif // LL_USE_TCMALLOC
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LLAllocatorHeapProfile const & LLAllocator::getProfile()
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{
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mProf.mLines.clear();
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// *TODO - avoid making all these extra copies of things...
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std::string prof_text = getRawProfile();
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//std::cout << prof_text << std::endl;
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mProf.parse(prof_text);
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return mProf;
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}
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