39 lines
694 B
C
39 lines
694 B
C
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// Virtual memory
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U64 VM_PageSize() {
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SYSTEM_INFO info;
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GetSystemInfo(&info);
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U64 result = info.dwPageSize;
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return result;
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}
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U64 VM_AllocationGranularity() {
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SYSTEM_INFO info;
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GetSystemInfo(&info);
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U64 result = info.dwAllocationGranularity;
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return result;
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}
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void *VM_Reserve(U64 size) {
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void *result = VirtualAlloc(0, size, MEM_RESERVE, PAGE_NOACCESS);
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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 = VirtualAlloc(base, size, MEM_COMMIT, PAGE_READWRITE) != 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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VirtualFree(base, size, MEM_DECOMMIT);
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}
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void VM_Release(void *base, U64 size) {
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(void) size;
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VirtualFree(base, 0, MEM_RELEASE);
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}
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