2010-11-10 18:13:29 -05:00
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#include "libpbd-config.h"
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2009-04-23 13:43:39 -04:00
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#include <cstring>
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#include <cerrno>
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#include "pbd/malign.h"
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#include "pbd/error.h"
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#include "i18n.h"
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using namespace PBD;
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#ifdef __x86_64__
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static const int CPU_CACHE_ALIGN = 64;
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#else
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static const int CPU_CACHE_ALIGN = 16; /* arguably 32 on most arches, but it matters less */
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#endif
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int cache_aligned_malloc (void** memptr, size_t size)
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{
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#ifdef NO_POSIX_MEMALIGN
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if (((*memptr) = malloc (size)) == 0) {
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fatal << string_compose (_("Memory allocation error: malloc (%1 * %2) failed (%3)"),
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CPU_CACHE_ALIGN, size, strerror (errno)) << endmsg;
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return errno;
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} else {
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return 0;
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}
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#else
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if (posix_memalign (memptr, CPU_CACHE_ALIGN, size)) {
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fatal << string_compose (_("Memory allocation error: posix_memalign (%1 * %2) failed (%3)"),
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CPU_CACHE_ALIGN, size, strerror (errno)) << endmsg;
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}
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return 0;
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#endif
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}
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