mirror of
https://github.com/open5gs/open5gs.git
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127 lines
4.0 KiB
C
127 lines
4.0 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#if !defined(OGS_CORE_INSIDE) && !defined(OGS_CORE_COMPILATION)
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#error "This header cannot be included directly."
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#endif
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#ifndef OGS_POOL_H
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#define OGS_POOL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef unsigned int ogs_index_t;
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#define OGS_POOL(pool, type) \
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struct { \
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const char *name; \
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int head, tail; \
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int size, avail; \
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type **free, *array, **index; \
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} pool
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#define ogs_pool_init(pool, _size) do { \
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int i; \
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(pool)->name = #pool; \
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(pool)->free = malloc(sizeof(*(pool)->free) * _size); \
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ogs_assert((pool)->free); \
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(pool)->array = malloc(sizeof(*(pool)->array) * _size); \
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ogs_assert((pool)->array); \
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(pool)->index = malloc(sizeof(*(pool)->index) * _size); \
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ogs_assert((pool)->index); \
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(pool)->size = (pool)->avail = _size; \
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(pool)->head = (pool)->tail = 0; \
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for (i = 0; i < _size; i++) { \
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(pool)->free[i] = &((pool)->array[i]); \
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(pool)->index[i] = NULL; \
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} \
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} while (0)
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#define ogs_pool_final(pool) do { \
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if (((pool)->size != (pool)->avail)) \
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ogs_error("%d in '%s[%d]' were not released.", \
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(pool)->size - (pool)->avail, (pool)->name, (pool)->size); \
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free((pool)->free); \
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free((pool)->array); \
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free((pool)->index); \
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} while (0)
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#define ogs_pool_index(pool, node) (((node) - (pool)->array)+1)
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#define ogs_pool_find(pool, _index) \
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(_index > 0 && _index <= (pool)->size) ? (pool)->index[_index-1] : NULL
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#define ogs_pool_cycle(pool, node) \
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ogs_pool_find((pool), ogs_pool_index((pool), (node)))
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#define ogs_pool_alloc(pool, node) do { \
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*(node) = NULL; \
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if ((pool)->avail > 0) { \
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(pool)->avail--; \
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*(node) = (void*)(pool)->free[(pool)->head]; \
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(pool)->free[(pool)->head] = NULL; \
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(pool)->head = ((pool)->head + 1) % ((pool)->size); \
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(pool)->index[ogs_pool_index(pool, *(node))-1] = *(node); \
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} \
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} while (0)
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#define ogs_pool_free(pool, node) do { \
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if ((pool)->avail < (pool)->size) { \
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(pool)->avail++; \
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(pool)->free[(pool)->tail] = (void*)(node); \
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(pool)->tail = ((pool)->tail + 1) % ((pool)->size); \
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(pool)->index[ogs_pool_index(pool, node)-1] = NULL; \
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} \
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} while (0)
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#define ogs_pool_size(pool) ((pool)->size)
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#define ogs_pool_avail(pool) ((pool)->avail)
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#define ogs_index_init(pool, _size) do { \
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int i; \
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(pool)->name = #pool; \
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(pool)->free = ogs_malloc(sizeof(*(pool)->free) * _size); \
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ogs_assert((pool)->free); \
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(pool)->array = ogs_malloc(sizeof(*(pool)->array) * _size); \
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ogs_assert((pool)->array); \
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(pool)->index = ogs_malloc(sizeof(*(pool)->index) * _size); \
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ogs_assert((pool)->index); \
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(pool)->size = (pool)->avail = _size; \
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(pool)->head = (pool)->tail = 0; \
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for (i = 0; i < _size; i++) { \
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(pool)->free[i] = &((pool)->array[i]); \
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(pool)->index[i] = NULL; \
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} \
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} while (0)
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#define ogs_index_final(pool) do { \
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if (((pool)->size != (pool)->avail)) \
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ogs_error("%d in '%s[%d]' were not released.", \
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(pool)->size - (pool)->avail, (pool)->name, (pool)->size); \
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ogs_free((pool)->free); \
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ogs_free((pool)->array); \
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ogs_free((pool)->index); \
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} while (0)
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#ifdef __cplusplus
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}
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#endif
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#endif /* OGS_POOL_H */
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