70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
|
|
* BIRD Resource Manager
|
|
*
|
|
* (c) 1998 Martin Mares <mj@ucw.cz>
|
|
*
|
|
* Can be freely distributed and used under the terms of the GNU GPL.
|
|
*/
|
|
|
|
#ifndef _BIRD_RESOURCE_H_
|
|
#define _BIRD_RESOURCE_H_
|
|
|
|
#include <lib/lists.h>
|
|
|
|
/* Resource */
|
|
|
|
typedef struct resource {
|
|
node n; /* Inside resource pool */
|
|
struct resclass *class; /* Resource class */
|
|
} resource;
|
|
|
|
/* Resource class */
|
|
|
|
struct resclass {
|
|
char *name; /* Resource class name */
|
|
unsigned size; /* Standard size of single resource */
|
|
void (*free)(resource *); /* Freeing function */
|
|
void (*dump)(resource *); /* Dump to debug output */
|
|
};
|
|
|
|
/* Generic resource manipulation */
|
|
|
|
typedef struct pool pool;
|
|
|
|
pool *rp_new(pool *); /* Create new pool */
|
|
void rp_init(pool *); /* Initialize static pool */
|
|
void rp_empty(pool *); /* Free everything in the pool */
|
|
void rfree(void *); /* Free single resource */
|
|
void rdump(void *); /* Dump to debug output */
|
|
|
|
void ralloc(pool *, struct resclass *);
|
|
|
|
/* Normal memory blocks */
|
|
|
|
void *mb_alloc(pool *, unsigned size);
|
|
void *mb_free(void *);
|
|
|
|
/* Memory pools with linear allocation */
|
|
|
|
typedef struct mempool mempool;
|
|
|
|
mempool *mp_new(pool *, unsigned blk);
|
|
void mp_trim(pool *); /* Free unused memory */
|
|
void *mp_alloc(mempool *, unsigned size); /* Aligned */
|
|
void *mp_allocu(mempool *, unsigned size); /* Unaligned */
|
|
void *mp_allocz(mempool *, unsigned size); /* With clear */
|
|
|
|
/* Slabs */
|
|
|
|
typedef struct slab slab;
|
|
|
|
slab *sl_new(pool *, unsigned size);
|
|
void *sl_alloc(slab *);
|
|
void sl_free(slab *, void *);
|
|
|
|
/* Low-level memory allocation functions, please don't use */
|
|
|
|
void *xmalloc(unsigned);
|
|
#define xfree(x) free(x)
|
|
|
|
#endif
|