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Better set memory management.

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At the cost of one pointer per set, sets can now be allocated and freed
more efficiently (especially since malloc might round things up).
This commit is contained in:
Bill Currie 2012-11-02 14:12:58 +09:00
parent 2385cf65c2
commit b9599a7119
2 changed files with 6 additions and 3 deletions
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3
tools/qfcc/include/set.h
View file

@ -37,8 +37,9 @@
//@{
typedef struct set_s {
unsigned size;
struct set_s *next; //< private. for ALLOC
unsigned *map;
unsigned size;
unsigned defmap[8];
} set_t;

6
tools/qfcc/source/set.c
View file

@ -48,6 +48,7 @@
#define BITS (sizeof (unsigned) * 8)
set_t *free_sets;
set_iter_t *free_set_iters;
static set_iter_t *
@ -76,7 +77,7 @@ set_new (void)
{
set_t *set;
set = calloc (1, sizeof (set_t));
ALLOC (16, set_t, sets, set);
set->size = sizeof (set->defmap) * 8;
set->map = set->defmap;
return set;
@ -87,7 +88,8 @@ set_delete (set_t *set)
{
if (set->map != set->defmap)
free (set->map);
free (set);
set->next = free_sets;
free_sets = set;
}
static void