|
Revision 7941, 1.0 KB
(checked in by nlmills, 4 years ago)
|
|
merged in changes from summer at LANL
|
| Line | |
|---|
| 1 | /* |
|---|
| 2 | * (C) 2001 Clemson University and The University of Chicago |
|---|
| 3 | * |
|---|
| 4 | * See COPYING in top-level directory. |
|---|
| 5 | */ |
|---|
| 6 | |
|---|
| 7 | #define _XOPEN_SOURCE 600 |
|---|
| 8 | #include <errno.h> |
|---|
| 9 | #include <stdlib.h> |
|---|
| 10 | #ifdef HAVE_MALLOC_H |
|---|
| 11 | #include <malloc.h> |
|---|
| 12 | #endif |
|---|
| 13 | |
|---|
| 14 | #include "pint-mem.h" |
|---|
| 15 | |
|---|
| 16 | /* PINT_mem_aligned_alloc() |
|---|
| 17 | * |
|---|
| 18 | * allocates a memory region of the specified size and returns a |
|---|
| 19 | * pointer to the region. The address of the memory will be evenly |
|---|
| 20 | * divisible by alignment. |
|---|
| 21 | * |
|---|
| 22 | * returns pointer to memory on success, NULL on failure |
|---|
| 23 | */ |
|---|
| 24 | inline void* PINT_mem_aligned_alloc(size_t size, size_t alignment) |
|---|
| 25 | { |
|---|
| 26 | int ret; |
|---|
| 27 | void *ptr; |
|---|
| 28 | |
|---|
| 29 | ret = posix_memalign(&ptr, alignment, size); |
|---|
| 30 | if(ret != 0) |
|---|
| 31 | { |
|---|
| 32 | errno = ret; |
|---|
| 33 | return NULL; |
|---|
| 34 | } |
|---|
| 35 | return ptr; |
|---|
| 36 | } |
|---|
| 37 | |
|---|
| 38 | /* PINT_mem_aligned_free() |
|---|
| 39 | * |
|---|
| 40 | * frees memory region previously allocated with |
|---|
| 41 | * PINT_mem_aligned_alloc() |
|---|
| 42 | * |
|---|
| 43 | * no return value |
|---|
| 44 | */ |
|---|
| 45 | inline void PINT_mem_aligned_free(void *ptr) |
|---|
| 46 | { |
|---|
| 47 | free(ptr); |
|---|
| 48 | return; |
|---|
| 49 | } |
|---|
| 50 | |
|---|
| 51 | /* |
|---|
| 52 | * Local variables: |
|---|
| 53 | * c-indent-level: 4 |
|---|
| 54 | * c-basic-offset: 4 |
|---|
| 55 | * End: |
|---|
| 56 | * |
|---|
| 57 | * vim: ts=8 sts=4 sw=4 expandtab |
|---|
| 58 | */ |
|---|
| 59 | |
|---|
| 60 | |
|---|