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// Copyright (c) 2014 libmv authors.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
#include "libmv/base/aligned_malloc.h"
#include "libmv/logging/logging.h"
#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__NetBSD__)
// Needed for memalign on Linux and _aligned_alloc on Windows.
# ifdef FREE_WINDOWS
/* make sure _aligned_malloc is included */
# ifdef __MSVCRT_VERSION__
# undef __MSVCRT_VERSION__
# endif
# define __MSVCRT_VERSION__ 0x0700
# endif // FREE_WINDOWS
# include <malloc.h>
#else
// Apple's malloc is 16-byte aligned, and does not have malloc.h, so include
// stdilb instead.
# include <cstdlib>
#endif
namespace libmv {
void* aligned_malloc(int size, int alignment) {
#ifdef _WIN32
return _aligned_malloc(size, alignment);
#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__APPLE__)
void* result;
if (posix_memalign(&result, alignment, size)) {
// non-zero means allocation error
// either no allocation or bad alignment value
return NULL;
}
return result;
#else // This is for Linux.
return memalign(alignment, size);
#endif
}
void aligned_free(void* ptr) {
#ifdef _WIN32
_aligned_free(ptr);
#else
free(ptr);
#endif
}
} // namespace libmv
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