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remove assign in while condition

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This commit is contained in:
Daan 2021-11-10 11:58:04 -08:00
parent fd61997cef
commit f72e5688f5
1 changed files with 18 additions and 18 deletions
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36
src/os.c
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@ -303,20 +303,21 @@ static void* mi_os_get_aligned_hint(size_t try_alignment, size_t size);
static void* mi_win_virtual_allocx(void* addr, size_t size, size_t try_alignment, DWORD flags) {
#if (MI_INTPTR_SIZE >= 8)
// on 64-bit systems, try to use the virtual address area after 2TiB for 4MiB aligned allocations
void* hint;
if (addr == NULL && (hint = mi_os_get_aligned_hint(try_alignment,size)) != NULL) {
void* p = VirtualAlloc(hint, size, flags, PAGE_READWRITE);
if (p != NULL) return p;
// for robustness always fall through in case of an error
/*
DWORD err = GetLastError();
if (err != ERROR_INVALID_ADDRESS && // If linked with multiple instances, we may have tried to allocate at an already allocated area (#210)
err != ERROR_INVALID_PARAMETER) { // Windows7 instability (#230)
return NULL;
if (addr == NULL) {
void* hint = mi_os_get_aligned_hint(try_alignment,size);
if (hint != NULL) {
void* p = VirtualAlloc(hint, size, flags, PAGE_READWRITE);
if (p != NULL) return p;
// for robustness always fall through in case of an error
/*
DWORD err = GetLastError();
if (err != ERROR_INVALID_ADDRESS && // If linked with multiple instances, we may have tried to allocate at an already allocated area (#210)
err != ERROR_INVALID_PARAMETER) { // Windows7 instability (#230)
return NULL;
}
*/
_mi_warning_message("unable to allocate hinted aligned OS memory (%zu bytes, error code: %x, address: %p, alignment: %d, flags: %x)\n", size, GetLastError(), hint, try_alignment, flags);
}
*/
_mi_warning_message("unable to allocate hinted aligned OS memory (%zu bytes, error code: %x, address: %p, alignment: %d, flags: %x)\n", size, GetLastError(), hint, try_alignment, flags);
// fall through on error
}
#endif
#if defined(MEM_EXTENDED_PARAMETER_TYPE_BITS)
@ -414,20 +415,19 @@ static void* mi_wasm_heap_grow(size_t size, size_t try_alignment) {
#define MI_OS_USE_MMAP
static void* mi_unix_mmapx(void* addr, size_t size, size_t try_alignment, int protect_flags, int flags, int fd) {
UNUSED(try_alignment);
void* p = NULL;
#if defined(MAP_ALIGNED) // BSD
if (addr == NULL && try_alignment > 0 && (try_alignment % _mi_os_page_size()) == 0) {
size_t n = mi_bsr(try_alignment);
if (((size_t)1 << n) == try_alignment && n >= 12 && n <= 30) { // alignment is a power of 2 and 4096 <= alignment <= 1GiB
flags |= MAP_ALIGNED(n);
p = mmap(addr, size, protect_flags, flags | MAP_ALIGNED(n), fd, 0);
void* p = mmap(addr, size, protect_flags, flags | MAP_ALIGNED(n), fd, 0);
if (p!=MAP_FAILED) return p;
// fall back to regular mmap
}
}
#elif defined(MAP_ALIGN) // Solaris
if (addr == NULL && try_alignment > 0 && (try_alignment % _mi_os_page_size()) == 0) {
p = mmap(try_alignment, size, protect_flags, flags | MAP_ALIGN, fd, 0);
void* p = mmap(try_alignment, size, protect_flags, flags | MAP_ALIGN, fd, 0);
if (p!=MAP_FAILED) return p;
// fall back to regular mmap
}
@ -437,14 +437,14 @@ static void* mi_unix_mmapx(void* addr, size_t size, size_t try_alignment, int pr
if (addr == NULL) {
void* hint = mi_os_get_aligned_hint(try_alignment, size);
if (hint != NULL) {
p = mmap(hint, size, protect_flags, flags, fd, 0);
void* p = mmap(hint, size, protect_flags, flags, fd, 0);
if (p!=MAP_FAILED) return p;
// fall back to regular mmap
}
}
#endif
// regular mmap
p = mmap(addr, size, protect_flags, flags, fd, 0);
void* p = mmap(addr, size, protect_flags, flags, fd, 0);
if (p!=MAP_FAILED) return p;
// failed to allocate
return NULL;