object-pool.h

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#ifndef UEL_OBJECT_POOL_H
#define UEL_OBJECT_POOL_H
 
#include "uevloop/utils/circular-queue.h"
 
#include <stdint.h>
#include <stdlib.h>
 
typedef struct uel_objpool uel_objpool_t;
struct uel_objpool {
    uint8_t *buffer;
    uel_cqueue_t queue;
};
 
void uel_objpool_init(
    uel_objpool_t *pool,
    size_t size_log2n,
    size_t item_size,
    uint8_t *buffer,
    void **queue_buffer
);
 
void *uel_objpool_acquire(uel_objpool_t *pool);
 
bool uel_objpool_release(uel_objpool_t *pool, void *element);
 
bool uel_objpool_is_empty(uel_objpool_t *pool);
 
#define UEL_DECLARE_OBJPOOL_BUFFERS(type, size_log2n, id)           \
    type id##_pool_buffer[(1<<size_log2n)];                         \
    void *id##_pool_queue_buffer[1<<size_log2n]
 
#define UEL_OBJPOOL_BUFFERS(id)                                     \
    (uint8_t *)&id##_pool_buffer, id##_pool_queue_buffer
 
#define UEL_OBJPOOL_BUFFERS_IN(id, obj)                             \
    (uint8_t *)&obj.id##_pool_buffer, obj.id##_pool_queue_buffer
 
#define UEL_OBJPOOL_BUFFERS_AT(id, obj)                             \
    (uint8_t *)&obj->id##_pool_buffer, obj->id##_pool_queue_buffer
 
#endif  /* UEL_OBJECT_POOL_H */