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vlc_memalign(): osx 10.5 doesn't have posix_memalign()

This commit is contained in:
Rafaël Carré 2011-09-24 23:22:41 -04:00
parent 3388e6b03a
commit 06c9784ad6
1 changed files with 24 additions and 0 deletions
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24
include/vlc_common.h
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@ -886,10 +886,34 @@ static inline void SetQWLE (void *p, uint64_t qw)
VLC_API bool vlc_ureduce( unsigned *, unsigned *, uint64_t, uint64_t, uint64_t );
/* Aligned memory allocator */
#ifdef __APPLE__
#include <AvailabilityMacros.h>
#endif
#ifdef WIN32
# include <malloc.h>
# define vlc_memalign(align, size) (__mingw_aligned_malloc(size, align))
# define vlc_free(base) (__mingw_aligned_free(base))
#elif defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
static inline void *vlc_memalign(size_t align, size_t size)
{
long diff;
void *ptr;
ptr = malloc(size+align);
if(!ptr)
return ptr;
diff = ((-(long)ptr - 1)&(align-1)) + 1;
ptr = (char*)ptr + diff;
((char*)ptr)[-1]= diff;
return ptr;
}
static void vlc_free(void *ptr)
{
if (ptr)
free((char*)ptr - ((char*)ptr)[-1]);
}
#else
static inline void *vlc_memalign(size_t align, size_t size)
{