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Add map iteration.

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This commit is contained in:
Jonathan Schleifer 2012-04-22 04:21:14 +02:00
parent a835d115cb
commit d1b16c8722
3 changed files with 64 additions and 4 deletions
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28
src/map.c
View file

@ -355,6 +355,34 @@ cfw_map_set(CFWMap *map, void *key, void *obj)
return true;
}
void
cfw_map_iter(CFWMap *map, cfw_map_iter_t *iter)
{
iter->key = NULL;
iter->obj = NULL;
iter->_map = map;
iter->_pos = 0;
}
void
cfw_map_iter_next(cfw_map_iter_t *iter)
{
CFWMap *map = iter->_map;
for (; iter->_pos < map->size &&
(map->data[iter->_pos] == NULL ||
map->data[iter->_pos] == &deleted); iter->_pos++);
if (iter->_pos < map->size) {
iter->key = map->data[iter->_pos]->key;
iter->obj = map->data[iter->_pos]->obj;
iter->_pos++;
} else {
iter->key = NULL;
iter->obj = NULL;
}
}
static CFWClass class = {
.name = "CFWMap",
.size = sizeof(CFWMap),

10
src/map.h
View file

@ -30,9 +30,19 @@
#include "class.h"
typedef struct CFWMap CFWMap;
typedef struct cfw_map_iter_t {
void *key, *obj;
/* private */
CFWMap *_map;
uint32_t _pos;
} cfw_map_iter_t;
extern CFWClass *cfw_map;
extern size_t cfw_map_size(CFWMap*);
extern void* cfw_map_get(CFWMap*, void*);
extern bool cfw_map_set(CFWMap*, void*, void*);
extern void cfw_map_iter(CFWMap*, cfw_map_iter_t*);
extern void cfw_map_iter_next(cfw_map_iter_t*);
#endif