| #include <errno.h> |
| #include <stdlib.h> |
| |
| int posix_memalign(void **res, size_t align, size_t len) { |
| if (align < sizeof(void *)) return EINVAL; |
| void *mem = __memalign(align, len); |
| // Note that the original posix_memalign() implementation returns errno here, |
| // set to either EINVAL (if the alignment argument is not a power of 2) or |
| // ENOMEM (if there was insufficient memory to fulfill the allocation |
| // request). These are also the two possible errors from memalign() when NULL |
| // is returned. errno can't be used here because it leaks __errno_location. |
| // Also, the Starboardized implementation of memalign() returns |
| // SbMemoryAllocateAligned(), whose behavior is undefined when the alignment |
| // is not a power of 2. So ENOMEM is returned here. |
| if (!mem) return ENOMEM; |
| *res = mem; |
| return 0; |
| } |
