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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
#include <opencv2/core/utils/logger.defines.hpp>
#undef CV_LOG_STRIP_LEVEL
#define CV_LOG_STRIP_LEVEL CV_LOG_LEVEL_VERBOSE + 1
#include <opencv2/core/utils/logger.hpp>
#define CV__ALLOCATOR_STATS_LOG(...) CV_LOG_VERBOSE(NULL, 0, "alloc.cpp: " << __VA_ARGS__)
#include "opencv2/core/utils/allocator_stats.impl.hpp"
#undef CV__ALLOCATOR_STATS_LOG
//#define OPENCV_ALLOC_ENABLE_STATISTICS
#define OPENCV_ALLOC_STATISTICS_LIMIT 4096 // don't track buffers less than N bytes
#ifdef HAVE_POSIX_MEMALIGN
#include <stdlib.h>
#elif defined HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef OPENCV_ALLOC_ENABLE_STATISTICS
#include <map>
#endif
namespace cv {
static void* OutOfMemoryError(size_t size)
{
CV_Error_(CV_StsNoMem, ("Failed to allocate %llu bytes", (unsigned long long)size));
}
CV_EXPORTS cv::utils::AllocatorStatisticsInterface& getAllocatorStatistics();
static cv::utils::AllocatorStatistics allocator_stats;
cv::utils::AllocatorStatisticsInterface& getAllocatorStatistics()
{
return allocator_stats;
}
#ifdef OPENCV_ALLOC_ENABLE_STATISTICS
static inline
void* fastMalloc_(size_t size)
#else
void* fastMalloc(size_t size)
#endif
{
#ifdef HAVE_POSIX_MEMALIGN
void* ptr = NULL;
if(posix_memalign(&ptr, CV_MALLOC_ALIGN, size))
ptr = NULL;
if(!ptr)
return OutOfMemoryError(size);
return ptr;
#elif defined HAVE_MEMALIGN
void* ptr = memalign(CV_MALLOC_ALIGN, size);
if(!ptr)
return OutOfMemoryError(size);
return ptr;
#else
uchar* udata = (uchar*)malloc(size + sizeof(void*) + CV_MALLOC_ALIGN);
if(!udata)
return OutOfMemoryError(size);
uchar** adata = alignPtr((uchar**)udata + 1, CV_MALLOC_ALIGN);
adata[-1] = udata;
return adata;
#endif
}
#ifdef OPENCV_ALLOC_ENABLE_STATISTICS
static inline
void fastFree_(void* ptr)
#else
void fastFree(void* ptr)
#endif
{
#if defined HAVE_POSIX_MEMALIGN || defined HAVE_MEMALIGN
free(ptr);
#else
if(ptr)
{
uchar* udata = ((uchar**)ptr)[-1];
CV_DbgAssert(udata < (uchar*)ptr &&
((uchar*)ptr - udata) <= (ptrdiff_t)(sizeof(void*)+CV_MALLOC_ALIGN));
free(udata);
}
#endif
}
#ifdef OPENCV_ALLOC_ENABLE_STATISTICS
static
Mutex& getAllocationStatisticsMutex()
{
static Mutex* p_alloc_mutex = allocSingletonNew<Mutex>();
CV_Assert(p_alloc_mutex);
return *p_alloc_mutex;
}
static std::map<void*, size_t> allocated_buffers; // guarded by getAllocationStatisticsMutex()
void* fastMalloc(size_t size)
{
void* res = fastMalloc_(size);
if (res && size >= OPENCV_ALLOC_STATISTICS_LIMIT)
{
cv::AutoLock lock(getAllocationStatisticsMutex());
allocated_buffers.insert(std::make_pair(res, size));
allocator_stats.onAllocate(size);
}
return res;
}
void fastFree(void* ptr)
{
{
cv::AutoLock lock(getAllocationStatisticsMutex());
std::map<void*, size_t>::iterator i = allocated_buffers.find(ptr);
if (i != allocated_buffers.end())
{
size_t size = i->second;
allocator_stats.onFree(size);
allocated_buffers.erase(i);
}
}
fastFree_(ptr);
}
#endif // OPENCV_ALLOC_ENABLE_STATISTICS
} // namespace
CV_IMPL void* cvAlloc( size_t size )
{
return cv::fastMalloc( size );
}
CV_IMPL void cvFree_( void* ptr )
{
cv::fastFree( ptr );
}
/* End of file. */