forked from acouzens/open5gs
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
#ifndef __CORE_POOL_H__
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#define __CORE_POOL_H__
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#include "core.h"
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#include "core_mutex.h"
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#define pool_declare(__name, __type, __size) \
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typedef struct { \
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int head, tail; \
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int size, avail; \
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__type *free[__size], pool[__size]; \
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mutex_id mut; \
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} pool_##__name##_t; \
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pool_##__name##_t __name
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#define pool_init(__pname, __size) do { \
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int __i; \
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mutex_create(&(__pname)->mut, MUTEX_DEFAULT); \
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(__pname)->size = (__pname)->avail = __size; \
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(__pname)->head = (__pname)->tail = 0; \
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for (__i = 0; __i < __size; __i++) \
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(__pname)->free[__i] = &((__pname)->pool[__i]); \
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} while (0)
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#define pool_final(__pname) \
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((__pname)->mut ? mutex_delete((__pname)->mut) : CORE_OK)
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#define pool_init_wo_lock(__pname, __size) do { \
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int __i; \
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(__pname)->mut = 0; \
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(__pname)->size = (__pname)->avail = __size; \
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(__pname)->head = (__pname)->tail = 0; \
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for (__i = 0; __i < __size; __i++) \
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(__pname)->free[__i] = &((__pname)->pool[__i]); \
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} while (0)
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#define pool_alloc_node(__pname, __pptr_node) do { \
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*(__pptr_node) = NULL; \
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if ((__pname)->mut) mutex_lock((__pname)->mut); \
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if ((__pname)->avail > 0) { \
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(__pname)->avail--; \
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*(__pptr_node) = (void*)(__pname)->free[(__pname)->head]; \
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(__pname)->free[(__pname)->head] = NULL; \
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(__pname)->head = ((__pname)->head + 1) % ((__pname)->size); \
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} \
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if ((__pname)->mut) mutex_unlock((__pname)->mut); \
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} while (0)
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#define pool_free_node(__pname, __ptr_node) do { \
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if ((__pname)->mut) mutex_lock((__pname)->mut); \
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if ((__pname)->avail < (__pname)->size) { \
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(__pname)->avail++; \
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(__pname)->free[(__pname)->tail] = (void*)(__ptr_node); \
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(__pname)->tail = ((__pname)->tail + 1) % ((__pname)->size); \
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} \
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if ((__pname)->mut) mutex_unlock((__pname)->mut); \
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} while (0)
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#define pool_size(__pname) ((__pname)->size)
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#define pool_avail(__pname) ((__pname)->avail)
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#define pool_used(__pname) (pool_size(__pname) - pool_avail(__pname))
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#endif /* ! __CORE_POOL_H__ */
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