32 lines
583 B
C
32 lines
583 B
C
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U64 VM_PageSize() {
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U64 result = getpagesize();
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return result;
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}
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U64 VM_AllocationGranularity() {
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U64 result = getpagesize();
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return result;
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}
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void *VM_Reserve(U64 size) {
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void *addr = mmap(0, size, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
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void *result = (addr == MAP_FAILED) ? 0 : addr;
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return result;
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}
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B32 VM_Commit(void *base, U64 size) {
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B32 result = mprotect(base, size, PROT_READ | PROT_WRITE) == 0;
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return result;
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}
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void VM_Decommit(void *base, U64 size) {
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mprotect(base, size, PROT_NONE);
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}
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void VM_Release(void *base, U64 size) {
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munmap(base, size);
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}
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