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/**
* @file llallocator.cpp
* @brief Implementation of the LLAllocator class.
*
* $LicenseInfo:firstyear=2009&license=viewergpl$
*
* Copyright (c) 2009-2009, 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;
}
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