text: /* Copyright 2015-2016 Samsung Electronics Co., Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef IOTJS_REQWRAP_H
  #define IOTJS_REQWRAP_H
  
  
  #include <uv.h>
  
  #include "iotjs_binding.h"
  
  
  // UV request wrapper.
  // Wrapping UV request and JavaScript callback.
  // When an instance of request wrapper is created. it will increase ref count
  // for JavaScript callback function to prevent it from reclaimed by GC. The
  // reference count will decrease back when wrapper is being freed.
  typedef struct {
    iotjs_jval_t jcallback;
    uv_req_t* request;
  } IOTJS_VALIDATED_STRUCT(iotjs_reqwrap_t);
  
  
  void iotjs_reqwrap_initialize(iotjs_reqwrap_t* reqwrap,
                                const iotjs_jval_t* jcallback, uv_req_t* request);
  void iotjs_reqwrap_destroy(iotjs_reqwrap_t* reqwrap);
  
  // To retrieve javascript callback function object.
  const iotjs_jval_t* iotjs_reqwrap_jcallback(iotjs_reqwrap_t* reqwrap);
  
  // To retrieve pointer to uv request.
  uv_req_t* iotjs_reqwrap_req(iotjs_reqwrap_t* reqwrap);
  
  
  iotjs_reqwrap_t* iotjs_reqwrap_from_request(uv_req_t* req);
  
  
  #endif /* IOTJS_REQWRAP_H */
  