thodg/libgit2/src/map.h

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• Hash : e1de726c
  Author :
  Date : 2012-03-12T22:55:40
  

  Migrate ODB files to new error handling
  
  This migrates odb.c, odb_loose.c, odb_pack.c and pack.c to
  the new style of error handling.  Also got the unix and win32
  versions of map.c.  There are some minor changes to other
  files but no others were completely converted.
  
  This also contains an update to filebuf so that a zeroed out
  filebuf will not think that the fd (== 0) is actually open
  (and inadvertently call close() on fd 0 if cleaned up).
  
  Lastly, this was built and tested on win32 and contains a
  bunch of fixes for the win32 build which was pretty broken.
  

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• src/map.h

• /*
   * Copyright (C) 2009-2012 the libgit2 contributors
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_map_h__
  #define INCLUDE_map_h__
  
  #include "common.h"
  
  
  /* p_mmap() prot values */
  #define GIT_PROT_NONE 0x0
  #define GIT_PROT_READ 0x1
  #define GIT_PROT_WRITE 0x2
  #define GIT_PROT_EXEC 0x4
  
  /* git__mmmap() flags values */
  #define GIT_MAP_FILE	0
  #define GIT_MAP_SHARED 1
  #define GIT_MAP_PRIVATE 2
  #define GIT_MAP_TYPE	0xf
  #define GIT_MAP_FIXED	0x10
  
  typedef struct { /* memory mapped buffer	*/
  	void *data; /* data bytes			*/
  	size_t len; /* data length			*/
  #ifdef GIT_WIN32
  	HANDLE fmh; /* file mapping handle */
  #endif
  } git_map;
  
  extern int validate_map_args(git_map *out, size_t len, int prot, int flags, int fd, git_off_t offset);
  
  extern int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, git_off_t offset);
  extern int p_munmap(git_map *map);
  
  #endif /* INCLUDE_map_h__ */
  

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