Commit | Line | Data |
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2340bcd3 JVH |
1 | #ifndef MEMALIGN_H |
2 | #define MEMALIGN_H | |
3 | ||
4 | #if defined(WIN32) | |
5 | ||
6 | #define SYSTEM_GET_PAGESIZE(ret) do {\ | |
7 | SYSTEM_INFO si;\ | |
8 | GetSystemInfo(&si);\ | |
9 | ret = si.dwPageSize;\ | |
10 | } while(0) | |
11 | #define SYSTEM_GET_TIME(ret) ret = timeGetTime() | |
12 | ||
13 | #define ALIGNED_MALLOC(memptr, alignment, size) do {\ | |
14 | char *ptr = malloc(sizeof(void*) + (size) + (alignment)-1);\ | |
15 | memptr = NULL;\ | |
16 | if (ptr) {\ | |
17 | size_t ptrval = (size_t)ptr + sizeof(void*) + (alignment)-1;\ | |
18 | ptrval = ptrval / (alignment) * (alignment);\ | |
19 | memptr = (void *)ptrval;\ | |
20 | *(((void **)memptr)-1) = ptr;\ | |
21 | }\ | |
22 | } while(0) | |
23 | #define ALIGNED_FREE(memptr) free(*(((void **)memptr)-1)) | |
24 | ||
25 | #else | |
26 | ||
27 | #define SYSTEM_GET_PAGESIZE(ret) ret = sysconf(_SC_PAGESIZE) | |
28 | #define SYSTEM_GET_TIME(ret) do {\ | |
29 | struct timeval tv;\ | |
30 | gettimeofday(&tv, NULL);\ | |
31 | ret = (unsigned int)(tv.tv_sec*1000 + tv.tv_usec/1000);\ | |
32 | } while(0) | |
33 | ||
34 | #define ALIGNED_MALLOC(memptr, alignment, size) if (posix_memalign((void **)&memptr, alignment, size)) memptr = NULL | |
35 | #define ALIGNED_FREE(memptr) free(memptr) | |
36 | ||
37 | #endif | |
38 | ||
39 | #endif |