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Direktori : /opt/cloudlinux/alt-php71/root/usr/include/php/ext/swoole/include/ |
Current File : //opt/cloudlinux/alt-php71/root/usr/include/php/ext/swoole/include/ring_queue.h |
/* +----------------------------------------------------------------------+ | Swoole | +----------------------------------------------------------------------+ | This source file is subject to version 2.0 of the Apache license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.apache.org/licenses/LICENSE-2.0.html | | If you did not receive a copy of the Apache2.0 license and are unable| | to obtain it through the world-wide-web, please send a note to | | license@swoole.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Author: Tianfeng Han <mikan.tenny@gmail.com> | +----------------------------------------------------------------------+ */ #ifndef _SW_RINGQUEUE_H_ #define _SW_RINGQUEUE_H_ typedef struct _swRingQueue { int head; int tail; /** * empty or full */ int tag; int size; void **data; } swRingQueue; int swRingQueue_init(swRingQueue *queue, int buffer_size); int swRingQueue_push(swRingQueue *queue, void *); int swRingQueue_pop(swRingQueue *queue, void **); void swRingQueue_free(swRingQueue *queue); static inline int swRingQueue_count(swRingQueue *queue) { if (queue->tail > queue->head) { return queue->tail - queue->head; } else if (queue->head == queue->tail) { return queue->tag == 1 ? queue->size : 0; } else { return queue->tail + queue->size - queue->head; } } #define swRingQueue_empty(q) ( (q->head == q->tail) && (q->tag == 0)) #define swRingQueue_full(q) ( (q->head == q->tail) && (q->tag == 1)) #endif