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/*
* Ostatnia aktualizacja:
*
* - $Id: pool.h,v 1.3 2002/12/14 19:36:11 mati Exp $
*
*/
#undef POOL_DEBUG
/* pheap - singular allocation of memory */
struct pheap
{
void *block;
int size, used;
};
/* pool_cleaner - callback type which is associated
with a pool entry; invoked when the pool entry is
free'd */
typedef void (*pool_cleaner) (void *arg);
/* pfree - a linked list node which stores an
allocation chunk, plus a callback */
struct pfree
{
pool_cleaner f;
void *arg;
struct pheap *heap;
struct pfree *next;
};
/* pool - base node for a pool. Maintains a linked list
of pool entries (pfree) */
typedef struct pool_struct
{
int size;
struct pfree *cleanup;
struct pheap *heap;
#ifdef POOL_DEBUG
char name[8], zone[32];
int lsize;
}
_pool, *pool;
#define pool_new() _pool_new(ZONE)
#define pool_heap(i) _pool_new_heap(i,ZONE)
#else
}
_pool, *pool;
#define pool_heap(i) _pool_new_heap(i,NULL)
#define pool_new() _pool_new(NULL)
#endif
pool _pool_new (char *zone); /* new pool :) */
pool _pool_new_heap (int size, char *zone); /* creates a new memory pool with an initial heap size */
void *pmalloc (pool p, int size); /* wrapper around malloc, takes from the pool, cleaned up automatically */
void *pmalloc_x (pool p, int size, char c); /* Wrapper around pmalloc which prefils buffer with c */
void *pmalloco (pool p, int size); /* YAPW for zeroing the block */
char *pstrdup (pool p, const char *src); /* wrapper around strdup, gains mem from pool */
void pool_stat (int full); /* print to stderr the changed pools and reset */
char *pstrdupx (pool p, const char *src); /* temp stub */
void pool_cleanup (pool p, pool_cleaner f, void *arg); /* calls f(arg) before the pool is freed during cleanup */
void pool_free (pool p); /* calls the cleanup functions, frees all the data on the pool, and deletes the pool itself */
int pool_size (pool p); /* returns total bytes allocated in this pool */
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