thodg/libgit2/src/offmap.h

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• Hash : 382b668b
  Author :
  Date : 2018-11-23T18:38:18
  

  khash: implement begin/end via functions instead of macros
  
  Right now, the `git_*map_begin()` and `git_*map_end()` helpers are
  implemented via macros which simply redirect to `kh_begin` and `kh_end`.
  As these macros refer to members of the map structures, they make it
  impossible to move the khash include into the implementation files.
  
  Implement these helpers as real functions instead to further decouple
  the headers from implementations.
  

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• src/offmap.h

• /*
   * Copyright (C) 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_offmap_h__
  #define INCLUDE_offmap_h__
  
  #include "common.h"
  
  #include "git2/types.h"
  
  typedef struct kh_off_s git_offmap;
  
  git_offmap *git_offmap_alloc(void);
  void git_offmap_free(git_offmap *map);
  void git_offmap_clear(git_offmap *map);
  
  size_t git_offmap_num_entries(git_offmap *map);
  
  size_t git_offmap_lookup_index(git_offmap *map, const git_off_t key);
  int git_offmap_valid_index(git_offmap *map, size_t idx);
  
  int git_offmap_exists(git_offmap *map, const git_off_t key);
  int git_offmap_has_data(git_offmap *map, size_t idx);
  
  git_off_t git_offmap_key_at(git_offmap *map, size_t idx);
  void *git_offmap_value_at(git_offmap *map, size_t idx);
  void git_offmap_set_value_at(git_offmap *map, size_t idx, void *value);
  void git_offmap_delete_at(git_offmap *map, size_t idx);
  
  int git_offmap_put(git_offmap *map, const git_off_t key, int *err);
  void git_offmap_insert(git_offmap *map, const git_off_t key, void *value, int *rval);
  void git_offmap_delete(git_offmap *map, const git_off_t key);
  
  size_t git_offmap_begin(git_offmap *map);
  size_t git_offmap_end(git_offmap *map);
  
  #define git_offmap_foreach(h, kvar, vvar, code) { size_t __i;			\
  	for (__i = git_offmap_begin(h); __i != git_offmap_end(h); ++__i) {	\
  		if (!git_offmap_has_data(h,__i)) continue;			\
  		(kvar) = git_offmap_key_at(h,__i);				\
  		(vvar) = git_offmap_value_at(h,__i);				\
  		code;								\
  	} }
  
  #define git_offmap_foreach_value(h, vvar, code) { size_t __i;			\
  	for (__i = git_offmap_begin(h); __i != git_offmap_end(h); ++__i) {	\
  		if (!git_offmap_has_data(h,__i)) continue;			\
  		(vvar) = git_offmap_value_at(h,__i);				\
  		code;								\
  	} }
  
  #endif
  

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