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vmem_mmap.c : add function vmem_mmap_top_free #11

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mrdotK wants to merge 1 commit from umem-vma-useup into master
pull from: umem-vma-useup
merge into: greg:master
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vmem_mmap.c
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@ -94,6 +94,19 @@ vmem_mmap_free(vmem_t *src, void *addr, size_t size)
errno = old_errno;
}
static void
vmem_mmap_top_free(vmem_t *src, void *addr, size_t size)
{
int old_errno = errno;
#ifdef _WIN32
VirtualFree(addr, size, MEM_RELEASE);
#else
(void) mmap(addr, size, FREE_PROT, FREE_FLAGS | MAP_FIXED, -1, 0);
#endif
vmem_free(src, addr, size);
errno = old_errno;
}
static void *
vmem_mmap_top_alloc(vmem_t *src, size_t size, int vmflags)
{