support aliyun sdk on TencentOS tiny

sample: examples\aliyun_iotkit_csdk_mqtt
project: board\TencentOS_tiny_EVB_MX_Plus\KEIL\aliyun_iotkit_csdk_mqtt

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/nghttp2/nghttp2_queue.c

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+#include "nghttp2_queue.h"
+
+#include <string.h>
+#include <assert.h>
+#ifdef INFRA_MEM_STATS
+#include "infra_mem_stats.h"
+#endif
+
+extern void *HAL_Malloc(uint32_t size);
+extern void *HAL_Realloc(void *ptr, uint32_t size);
+extern void HAL_Free(void *ptr);
+
+#if INFRA_MEM_STATS
+#define NGHTTP2_QUEUE_MALLOC(size)         LITE_malloc(size, MEM_MAGIC, "nghttp2.queue")
+#define NGHTTP2_QUEUE_FREE(ptr)            LITE_free(ptr)
+#else
+#define NGHTTP2_QUEUE_MALLOC(size)         HAL_Malloc(size)
+#define NGHTTP2_QUEUE_FREE(ptr)            {HAL_Free((void *)ptr);ptr = NULL;}
+#endif
+
+void nghttp2_queue_init(nghttp2_queue *queue) {
+  queue->front = queue->back = NULL;
+}
+
+void nghttp2_queue_free(nghttp2_queue *queue) {
+  if (!queue) {
+    return;
+  } else {
+    nghttp2_queue_cell *p = queue->front;
+    while (p) {
+      nghttp2_queue_cell *next = p->next;
+      NGHTTP2_QUEUE_FREE(p);
+      p = next;
+    }
+  }
+}
+
+int nghttp2_queue_push(nghttp2_queue *queue, void *data) {
+  nghttp2_queue_cell *new_cell =
+      (nghttp2_queue_cell *)NGHTTP2_QUEUE_MALLOC(sizeof(nghttp2_queue_cell));
+  if (!new_cell) {
+    return NGHTTP2_ERR_NOMEM;
+  }
+  new_cell->data = data;
+  new_cell->next = NULL;
+  if (queue->back) {
+    queue->back->next = new_cell;
+    queue->back = new_cell;
+
+  } else {
+    queue->front = queue->back = new_cell;
+  }
+  return 0;
+}
+
+void nghttp2_queue_pop(nghttp2_queue *queue) {
+  nghttp2_queue_cell *front = queue->front;
+  assert(front);
+  queue->front = front->next;
+  if (front == queue->back) {
+    queue->back = NULL;
+  }
+  NGHTTP2_QUEUE_FREE(front);
+}
+
+void *nghttp2_queue_front(nghttp2_queue *queue) {
+  assert(queue->front);
+  return queue->front->data;
+}
+
+void *nghttp2_queue_back(nghttp2_queue *queue) {
+  assert(queue->back);
+  return queue->back->data;
+}
+
+int nghttp2_queue_empty(nghttp2_queue *queue) { return queue->front == NULL; }