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#ifndef _BUFFERPOOL_H_
#define _BUFFERPOOL_H_
#include "obj.h"
#define BUFFERPOOL_ALIGNMENT (MAX(sizeof(void *), 8)) // bytes
#define BUFFERPOOL_ALIGN(x) (((x + BUFFERPOOL_ALIGNMENT - 1) / BUFFERPOOL_ALIGNMENT) * BUFFERPOOL_ALIGNMENT)
#define BUFFERPOOL_SHARD_SIZE ((size_t) (1LL<<24)) // 16 MB, must be a power of two
#define BUFFERPOOL_OVERHEAD BUFFERPOOL_ALIGN(sizeof(void *)) // storage space not available
#define BUFFERPOOL_BOTTOM_MASK (BUFFERPOOL_SHARD_SIZE - 1)
#define BUFFERPOOL_TOP_MASK (~BUFFERPOOL_BOTTOM_MASK)
struct bufferpool;
struct bpool_shard;
void bufferpool_init(void);
void bufferpool_cleanup(void);
struct bufferpool *bufferpool_new(void *(*alloc)(void), void (*dealloc)(void *));
void bufferpool_destroy(struct bufferpool *);
void *bufferpool_alloc(struct bufferpool *bp, size_t len);
void *bufferpool_reserve(struct bufferpool *bp, unsigned int refs, unsigned int (*recycle)(void *), void *arg);
void *bufferpool_ref(void *);
void bufferpool_unref(void *);
void bufferpool_release(void *); // remove all refs
INLINE void *bufferpool_alloc0(struct bufferpool *bp, size_t len) {
void *ret = bufferpool_alloc(bp, len);
if (!ret)
return NULL;
memset(ret, 0, len);
return ret;
}
void *bufferpool_aligned_alloc(void);
void bufferpool_aligned_free(void *);
typedef char bp_char;
G_DEFINE_AUTOPTR_CLEANUP_FUNC(bp_char, bufferpool_unref);
typedef char bp_void;
G_DEFINE_AUTOPTR_CLEANUP_FUNC(bp_void, bufferpool_unref);
#endif
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