8c24d921b0
sample: examples\aliyun_iotkit_csdk_mqtt project: board\TencentOS_tiny_EVB_MX_Plus\KEIL\aliyun_iotkit_csdk_mqtt
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
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* Copyright (C) 2015-2018 Alibaba Group Holding Limited
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*/
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#include "nghttp2_queue.h"
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#include <string.h>
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#include <assert.h>
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#ifdef INFRA_MEM_STATS
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#include "infra_mem_stats.h"
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#endif
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extern void *HAL_Malloc(uint32_t size);
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extern void *HAL_Realloc(void *ptr, uint32_t size);
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extern void HAL_Free(void *ptr);
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#if INFRA_MEM_STATS
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#define NGHTTP2_QUEUE_MALLOC(size) LITE_malloc(size, MEM_MAGIC, "nghttp2.queue")
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#define NGHTTP2_QUEUE_FREE(ptr) LITE_free(ptr)
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#else
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#define NGHTTP2_QUEUE_MALLOC(size) HAL_Malloc(size)
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#define NGHTTP2_QUEUE_FREE(ptr) {HAL_Free((void *)ptr);ptr = NULL;}
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#endif
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void nghttp2_queue_init(nghttp2_queue *queue) {
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queue->front = queue->back = NULL;
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}
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void nghttp2_queue_free(nghttp2_queue *queue) {
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if (!queue) {
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return;
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} else {
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nghttp2_queue_cell *p = queue->front;
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while (p) {
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nghttp2_queue_cell *next = p->next;
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NGHTTP2_QUEUE_FREE(p);
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p = next;
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}
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}
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}
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int nghttp2_queue_push(nghttp2_queue *queue, void *data) {
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nghttp2_queue_cell *new_cell =
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(nghttp2_queue_cell *)NGHTTP2_QUEUE_MALLOC(sizeof(nghttp2_queue_cell));
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if (!new_cell) {
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return NGHTTP2_ERR_NOMEM;
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}
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new_cell->data = data;
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new_cell->next = NULL;
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if (queue->back) {
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queue->back->next = new_cell;
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queue->back = new_cell;
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} else {
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queue->front = queue->back = new_cell;
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}
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return 0;
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}
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void nghttp2_queue_pop(nghttp2_queue *queue) {
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nghttp2_queue_cell *front = queue->front;
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assert(front);
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queue->front = front->next;
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if (front == queue->back) {
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queue->back = NULL;
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}
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NGHTTP2_QUEUE_FREE(front);
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}
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void *nghttp2_queue_front(nghttp2_queue *queue) {
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assert(queue->front);
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return queue->front->data;
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}
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void *nghttp2_queue_back(nghttp2_queue *queue) {
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assert(queue->back);
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return queue->back->data;
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}
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int nghttp2_queue_empty(nghttp2_queue *queue) { return queue->front == NULL; }
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