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/*
* 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
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