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71308351a8
Original commit message from CVS: Several new files from Steve Lhomme's MSVC patch (bug #141317): * win32/GStreamer.vcproj: * win32/Makefile: * win32/config.h: * win32/dirent.c: (_topendir), (_treaddir), (_tclosedir), (_trewinddir), (_ttelldir), (_tseekdir): * win32/dirent.h: * win32/gst-inspect.vcproj: * win32/gst-launch.vcproj: * win32/gst-register.vcproj: * win32/gstbytestream.vcproj: * win32/gstelements.vcproj: * win32/gstoptimalscheduler.vcproj: * win32/gstspider.vcproj: * win32/gtchar.h: * win32/mman.c: (mmap), (mprotect), (msync), (munmap): * win32/mman.h: * win32/mman.inl: * win32/msvc71.sln:
88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
/* $Id$
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* =============================================================================
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*
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* = LIBRARY
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* pace
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*
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* = FILENAME
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* pace/win32/mman.c
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*
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* = AUTHOR
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* Luther Baker
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*
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* ============================================================================= */
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#include "mman.h"
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void *
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mmap (void *addr, size_t len, int prot, int flags, HANDLE fildes, long off)
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{
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void *addr_mapping = 0;
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int nt_flags = 0;
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HANDLE file_mapping = INVALID_HANDLE_VALUE;
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if (flags | MAP_PRIVATE) {
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prot = PAGE_WRITECOPY;
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nt_flags = FILE_MAP_COPY;
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} else if (flags | MAP_SHARED) {
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if (prot | PAGE_READONLY)
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nt_flags = FILE_MAP_READ;
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if (prot | PAGE_READWRITE)
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nt_flags = FILE_MAP_WRITE;
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}
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file_mapping = CreateFileMapping (fildes, 0, prot, 0, 0, 0);
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if (file_mapping == 0)
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return MAP_FAILED;
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# if defined (PACE_OS_EXTRA_MMAP_FLAGS)
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nt_flags |= PACE_OS_EXTRA_MMAP_FLAGS;
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# endif /* PACE_OS_EXTRA_MMAP_FLAGS */
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//ACE_UNUSED_ARG (addr); /* WinCE does not allow specifying <addr>.*/
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addr_mapping = MapViewOfFile (file_mapping, nt_flags, 0, off, len);
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/* Only close this down if we used the temporary. */
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if (file_mapping == INVALID_HANDLE_VALUE)
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CloseHandle (file_mapping);
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if (addr_mapping == 0)
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return MAP_FAILED;
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else if ((flags | MAP_FIXED)
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&& addr_mapping != addr) {
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errno = 22;
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return MAP_FAILED;
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} else
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return addr_mapping;
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}
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int
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mprotect (void *addr, size_t len, int prot)
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{
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DWORD dummy; /* Sigh! */
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return VirtualProtect (addr, len, prot, &dummy) ? 0 : -1;
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}
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int
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msync (void *addr, size_t len, int flags)
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{
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//PACE_UNUSED_ARG (flags);
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if (!FlushViewOfFile (addr, len))
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return -1;
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return 0;
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}
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int
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munmap (void *addr, size_t len)
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{
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//PACE_UNUSED_ARG (len);
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if (!UnmapViewOfFile (addr))
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return -1;
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return 0;
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}
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