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