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https://github.com/jart/cosmopolitan.git
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f7780de24b
Cosmopolitan now supports mremap(), which is only supported on Linux and NetBSD. First, it allows memory mappings to be relocated without copying them; this can dramatically speed up data structures like std::vector if the array size grows larger than 256kb. The mremap() system call is also 10x faster than munmap() when shrinking large memory mappings. There's now two functions, getpagesize() and getgransize() which help to write portable code that uses mmap(MAP_FIXED). Alternative sysconf() may be called with our new _SC_GRANSIZE. The madvise() system call now has a better wrapper with improved documentation.
115 lines
7 KiB
C
115 lines
7 KiB
C
#ifndef COSMOPOLITAN_LIBC_NT_MEMORY_H_
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#define COSMOPOLITAN_LIBC_NT_MEMORY_H_
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#include "libc/nt/struct/memextendedparameter.h"
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#include "libc/nt/struct/memorybasicinformation.h"
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#include "libc/nt/struct/memoryrangeentry.h"
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#include "libc/nt/struct/securityattributes.h"
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#include "libc/nt/thunk/msabi.h"
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╔────────────────────────────────────────────────────────────────▀▀▀─────────│─╗
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│ cosmopolitan § new technology » memory ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#define kNtNumaNoPreferredNode 0xffffffffu
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COSMOPOLITAN_C_START_
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void *LocalFree(void *hMem);
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int64_t CreateFileMapping(
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int64_t opt_hFile,
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const struct NtSecurityAttributes *opt_lpFileMappingAttributes,
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uint32_t flProtect, uint32_t dwMaximumSizeHigh, uint32_t dwMaximumSizeLow,
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const char16_t *opt_lpName);
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int64_t CreateFileMappingNuma(
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int64_t opt_hFile,
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const struct NtSecurityAttributes *opt_lpFileMappingAttributes,
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uint32_t flProtect, uint32_t dwMaximumSizeHigh, uint32_t dwMaximumSizeLow,
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const char16_t *opt_lpName, uint32_t nndDesiredNumaNode);
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void *MapViewOfFileEx(int64_t hFileMappingObject, uint32_t dwDesiredAccess,
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uint32_t dwFileOffsetHigh, uint32_t dwFileOffsetLow,
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size_t dwNumberOfBytesToMap,
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void *opt_lpDesiredBaseAddress);
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void *MapViewOfFileExNuma(int64_t hFileMappingObject, uint32_t dwDesiredAccess,
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uint32_t dwFileOffsetHigh, uint32_t dwFileOffsetLow,
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size_t dwNumberOfBytesToMap,
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void *opt_lpDesiredBaseAddress,
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uint32_t nndDesiredNumaNode);
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bool32 UnmapViewOfFile(const void *lpBaseAddress);
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bool32 FlushViewOfFile(const void *lpBaseAddress,
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size_t dwNumberOfBytesToFlush);
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void *VirtualAlloc(void *opt_lpAddress, uint64_t dwSize,
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uint32_t flAllocationType, uint32_t flProtect);
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bool32 VirtualFree(void *lpAddress, uint64_t dwSize, uint32_t dwFreeType);
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bool32 VirtualProtect(void *lpAddress, uint64_t dwSize, uint32_t flNewProtect,
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uint32_t *lpflOldProtect) paramsnonnull();
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bool32 VirtualLock(const void *lpAddress, size_t dwSize);
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bool32 VirtualUnlock(const void *lpAddress, size_t dwSize);
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uint64_t VirtualQuery(const void *lpAddress,
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struct NtMemoryBasicInformation *lpBuffer,
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uint64_t dwLength);
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void *VirtualAllocEx(int64_t hProcess, void *lpAddress, uint64_t dwSize,
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uint32_t flAllocationType, uint32_t flProtect);
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int64_t GetProcessHeap(void);
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void *HeapAlloc(int64_t hHeap, uint32_t dwFlags, size_t dwBytes) __wur;
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bool32 HeapFree(int64_t hHeap, uint32_t dwFlags, void *opt_lpMem);
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void *HeapReAlloc(int64_t hHeap, uint32_t dwFlags, void *lpMem,
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size_t dwBytes) __wur;
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void *GlobalAlloc(uint32_t uFlags, uint64_t dwBytes) __wur;
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void *GlobalFree(void *hMem);
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/**
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* @param AllocationType
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* - kNtMemReserve
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* - kNtMemReplacePlaceholder
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* - kNtMemLargePages
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*/
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void *MapViewOfFile3(
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intptr_t FileMapping, intptr_t Process, void *opt_BaseAddress,
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uint64_t Offset, size_t ViewSize, unsigned AllocationType,
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unsigned PageProtection,
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struct NtMemExtendedParameter *in_out_opt_ExtendedParameters,
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unsigned ParameterCount);
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void *VirtualAlloc2(
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intptr_t opt_Process, void *opt_BaseAddress, size_t Size,
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unsigned AllocationType, unsigned PageProtection,
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struct NtMemExtendedParameter *in_out_opt_ExtendedParameters,
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unsigned ParameterCount);
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bool32 PrefetchVirtualMemory(int64_t hProcess, uintptr_t NumberOfEntries,
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struct NtMemoryRangeEntry *VirtualAddresses,
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uint32_t reserved_Flags);
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bool32 OfferVirtualMemory(void *inout_VirtualAddress, size_t Size,
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int Priority);
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#if ShouldUseMsabiAttribute()
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#include "libc/nt/thunk/memory.inc"
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#endif /* ShouldUseMsabiAttribute() */
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_NT_MEMORY_H_ */
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