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https://github.com/wolfpld/tracy.git
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39 lines
985 B
C++
39 lines
985 B
C++
#include "TracyMmap.hpp"
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#if defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__
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# include <io.h>
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# include <windows.h>
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void* mmap( void* addr, size_t length, int prot, int flags, int fd, off_t offset )
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{
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HANDLE hnd;
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void* map = nullptr;
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switch( prot )
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{
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case PROT_READ:
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if( hnd = CreateFileMapping( HANDLE( _get_osfhandle( fd ) ), nullptr, PAGE_READONLY, 0, 0, nullptr ) )
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{
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map = MapViewOfFile( hnd, FILE_MAP_READ, 0, 0, length );
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CloseHandle( hnd );
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}
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break;
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case PROT_WRITE:
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if( hnd = CreateFileMapping( HANDLE( _get_osfhandle( fd ) ), nullptr, PAGE_READWRITE, 0, 0, nullptr ) )
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{
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map = MapViewOfFile( hnd, FILE_MAP_WRITE, 0, 0, length );
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CloseHandle( hnd );
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}
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break;
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}
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return map ? (char*)map + offset : (void*)-1;
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}
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int munmap( void* addr, size_t length )
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{
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return UnmapViewOfFile( addr ) != 0 ? 0 : -1;
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}
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#endif
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