thodg/libgit2/src/idxmap.c

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• Hash : 18e71e6d
  Author :
  Date : 2018-11-28T13:31:06
  

  index: use new enum and structure names Use the new-style index names throughout our own codebase.

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• src/idxmap.c

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  
  #include "idxmap.h"
  
  #define kmalloc git__malloc
  #define kcalloc git__calloc
  #define krealloc git__realloc
  #define kreallocarray git__reallocarray
  #define kfree git__free
  #include "khash.h"
  
  __KHASH_TYPE(idx, const git_index_entry *, git_index_entry *)
  __KHASH_TYPE(idxicase, const git_index_entry *, git_index_entry *)
  
  /* This is __ac_X31_hash_string but with tolower and it takes the entry's stage into account */
  static kh_inline khint_t idxentry_hash(const git_index_entry *e)
  {
  	const char *s = e->path;
  	khint_t h = (khint_t)git__tolower(*s);
  	if (h) for (++s ; *s; ++s) h = (h << 5) - h + (khint_t)git__tolower(*s);
  	return h + GIT_INDEX_ENTRY_STAGE(e);
  }
  
  #define idxentry_equal(a, b) (GIT_INDEX_ENTRY_STAGE(a) == GIT_INDEX_ENTRY_STAGE(b) && strcmp(a->path, b->path) == 0)
  #define idxentry_icase_equal(a, b) (GIT_INDEX_ENTRY_STAGE(a) == GIT_INDEX_ENTRY_STAGE(b) && strcasecmp(a->path, b->path) == 0)
  
  __KHASH_IMPL(idx, static kh_inline, const git_index_entry *, git_index_entry *, 1, idxentry_hash, idxentry_equal)
  __KHASH_IMPL(idxicase, static kh_inline, const git_index_entry *, git_index_entry *, 1, idxentry_hash, idxentry_icase_equal)
  
  int git_idxmap_alloc(git_idxmap **map)
  {
  	if ((*map = kh_init(idx)) == NULL) {
  		giterr_set_oom();
  		return -1;
  	}
  
  	return 0;
  }
  
  int git_idxmap_icase_alloc(git_idxmap_icase **map)
  {
  	if ((*map = kh_init(idxicase)) == NULL) {
  		giterr_set_oom();
  		return -1;
  	}
  
  	return 0;
  }
  
  void git_idxmap_insert(git_idxmap *map, const git_index_entry *key, void *value, int *rval)
  {
  	khiter_t idx = kh_put(idx, map, key, rval);
  
  	if ((*rval) >= 0) {
  		if ((*rval) == 0)
  			kh_key(map, idx) = key;
  		kh_val(map, idx) = value;
  	}
  }
  
  void git_idxmap_icase_insert(git_idxmap_icase *map, const git_index_entry *key, void *value, int *rval)
  {
  	khiter_t idx = kh_put(idxicase, map, key, rval);
  
  	if ((*rval) >= 0) {
  		if ((*rval) == 0)
  			kh_key(map, idx) = key;
  		kh_val(map, idx) = value;
  	}
  }
  
  size_t git_idxmap_lookup_index(git_idxmap *map, const git_index_entry *key)
  {
  	return kh_get(idx, map, key);
  }
  
  size_t git_idxmap_icase_lookup_index(git_idxmap_icase *map, const git_index_entry *key)
  {
  	return kh_get(idxicase, map, key);
  }
  
  void *git_idxmap_value_at(git_idxmap *map, size_t idx)
  {
  	return kh_val(map, idx);
  }
  
  int git_idxmap_valid_index(git_idxmap *map, size_t idx)
  {
  	return idx != kh_end(map);
  }
  
  int git_idxmap_has_data(git_idxmap *map, size_t idx)
  {
  	return kh_exist(map, idx);
  }
  
  void git_idxmap_resize(git_idxmap *map, size_t size)
  {
  	kh_resize(idx, map, size);
  }
  
  void git_idxmap_icase_resize(git_idxmap_icase *map, size_t size)
  {
  	kh_resize(idxicase, map, size);
  }
  
  void git_idxmap_free(git_idxmap *map)
  {
  	kh_destroy(idx, map);
  }
  
  void git_idxmap_icase_free(git_idxmap_icase *map)
  {
  	kh_destroy(idxicase, map);
  }
  
  void git_idxmap_clear(git_idxmap *map)
  {
  	kh_clear(idx, map);
  }
  
  void git_idxmap_icase_clear(git_idxmap_icase *map)
  {
  	kh_clear(idxicase, map);
  }
  
  void git_idxmap_delete_at(git_idxmap *map, size_t idx)
  {
  	kh_del(idx, map, idx);
  }
  
  void git_idxmap_icase_delete_at(git_idxmap_icase *map, size_t idx)
  {
  	kh_del(idxicase, map, idx);
  }
  
  void git_idxmap_delete(git_idxmap *map, const git_index_entry *key)
  {
  	khiter_t idx = git_idxmap_lookup_index(map, key);
  	if (git_idxmap_valid_index(map, idx))
  		git_idxmap_delete_at(map, idx);
  }
  void git_idxmap_icase_delete(git_idxmap_icase *map, const git_index_entry *key)
  {
  	khiter_t idx = git_idxmap_icase_lookup_index(map, key);
  	if (git_idxmap_valid_index((git_idxmap *)map, idx))
  		git_idxmap_icase_delete_at(map, idx);
  }
  

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