mman-win32

mman library for Windows. mirror of https://code.google.com/p/mman-win32/

A light implementation of the mmap functions for MinGW.

The mmap-win32 library implements a wrapper for mmap functions around the memory mapping Windows API.

License: MIT License

Build

Requirements: a C compiler (MinGW-w64 or MSVC) and CMake >= 3.10.

CMake (recommended)

mkdir build && cd build
cmake .. -DBUILD_TESTS=ON
cmake --build .

# cross-compile from Linux (MinGW-w64):
#   cmake .. -DCMAKE_SYSTEM_NAME=Windows \
#            -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc \
#            -DBUILD_TESTS=ON

This produces libmman (shared by default; pass -DBUILD_SHARED_LIBS=OFF for a static library) and, with -DBUILD_TESTS=ON, the t_mman test executable.

Run the tests (Windows, or under Wine):

t_mman.exe

MinGW Makefile

./configure --enable-static [--prefix=/usr/local]
make
make test     # builds and runs test.exe
make install

MSVC

Open mman.sln in Visual Studio.

Notes

• madvise(MADV_WILLNEED) uses PrefetchVirtualMemory; madvise(MADV_DONTNEED) uses OfferVirtualMemory, which only exists on Windows 11 21H2+. Both are resolved at runtime and degrade to a no-op when unavailable.
• MAP_FIXED uses MapViewOfFileEx.