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53 lines
1.9 KiB
Plaintext
53 lines
1.9 KiB
Plaintext
module std::os::win32 @if(env::WIN32);
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enum Win32_AllocationType : const Win32_DWORD
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{
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MEM_COMMIT = 0x00001000,
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MEM_RESERVE = 0x00002000,
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MEM_RESET = 0x00080000,
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MEM_RESET_UNDO = 0x01000000,
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MEM_LARGE_PAGES = 0x20000000,
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MEM_PHYSICAL = 0x00400000,
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MEM_TOP_DOWN = 0x00100000,
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MEM_WRITE_WATCH = 0x00200000
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}
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enum Win32_Protect : const Win32_DWORD
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{
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PAGE_EXECUTE = 0x10,
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PAGE_EXECUTE_READ = 0x20,
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PAGE_EXECUTE_READWRITE = 0x40,
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PAGE_EXECUTE_WRITECOPY = 0x80,
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PAGE_NOACCESS = 0x01,
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PAGE_READONLY = 0x02,
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PAGE_READWRITE = 0x04,
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PAGE_WRITECOPY = 0x08,
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PAGE_TARGETS_INVALID = 0x40000000,
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PAGE_TARGETS_NO_UPDATE = 0x40000000,
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PAGE_GUARD = 0x100,
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PAGE_NOCACHE = 0x200,
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PAGE_WRITECOMBINE = 0x400,
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}
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enum Win32_FreeType : const Win32_DWORD
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{
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MEM_DECOMMIT = 0x00004000,
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MEM_RELEASE = 0x00008000,
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MEM_COALESCE_PLACEHOLDERS = 0x00000001,
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MEM_PRESERVE_PLACEHOLDER = 0x00000002,
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}
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extern fn Win32_LPVOID virtualAlloc(Win32_LPVOID lpAddres, Win32_SIZE_T dwSize, Win32_AllocationType flAllocationType, Win32_Protect flProtect) @extern("VirtualAlloc");
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extern fn Win32_PVOID virtualAlloc2(Win32_HANDLE process, Win32_PVOID baseAddress, Win32_SIZE_T size, Win32_AllocationType allocationType, Win32_ULONG pageProtection, Win32_MEM_EXTENDED_PARAMETER* extendedParameters, Win32_ULONG parameterCount) @extern("VirtualAlloc2");
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extern fn Win32_BOOL virtualFree(Win32_LPVOID lpAddress, Win32_SIZE_T dwSize, Win32_FreeType dwFreeType) @extern("VirtualFree");
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extern fn Win32_BOOL virtualProtect(Win32_LPVOID lpAddress, Win32_SIZE_T dwSize, Win32_Protect flNewProtect, Win32_Protect* lpflOldProtect) @extern("VirtualProtect");
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fn usz allocation_granularity()
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{
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static usz granularity;
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if (granularity) return granularity;
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Win32_SYSTEM_INFO info;
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win32::getSystemInfo(&info);
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return granularity = (usz)info.dwAllocationGranularity;
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}
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