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/**
* @file llallocator.cpp
* @brief Implementation of the LLAllocator class.
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* 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 "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);
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
//
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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