[thirdparty/git.git] / mem-pool.h

#ifndef MEM_POOL_H
#define MEM_POOL_H

struct mp_block {
	struct mp_block *next_block;
	char *next_free;
	char *end;
	uintmax_t space[FLEX_ARRAY]; /* more */
};

struct mem_pool {
	struct mp_block *mp_block;

	/*
	 * The amount of available memory to grow the pool by.
	 * This size does not include the overhead for the mp_block.
	 */
	size_t block_alloc;

	/* The total amount of memory allocated by the pool. */
	size_t pool_alloc;
};

/*
 * Alloc memory from the mem_pool.
 */
void *mem_pool_alloc(struct mem_pool *pool, size_t len);

/*
 * Allocate and zero memory from the memory pool.
 */
void *mem_pool_calloc(struct mem_pool *pool, size_t count, size_t size);

#endif
Commit	Line	Data
065feab4 JM	1	#ifndef MEM_POOL_H
	2	#define MEM_POOL_H
	3
	4	struct mp_block {
	5	struct mp_block *next_block;
	6	char *next_free;
	7	char *end;
	8	uintmax_t space[FLEX_ARRAY]; /* more */
	9	};
	10
	11	struct mem_pool {
	12	struct mp_block *mp_block;
	13
	14	/*
	15	* The amount of available memory to grow the pool by.
	16	* This size does not include the overhead for the mp_block.
	17	*/
	18	size_t block_alloc;
	19
	20	/* The total amount of memory allocated by the pool. */
	21	size_t pool_alloc;
	22	};
	23
	24	/*
	25	* Alloc memory from the mem_pool.
	26	*/
	27	void mem_pool_alloc(struct mem_pool pool, size_t len);
	28
	29	/*
	30	* Allocate and zero memory from the memory pool.
	31	*/
	32	void mem_pool_calloc(struct mem_pool pool, size_t count, size_t size);
	33
	34	#endif