text: /*!A cross-platform build utility based on Lua
   *
   * 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.
   *
   * Copyright (C) 2015-present, TBOOX Open Source Group.
   *
   * @author      ruki
   * @file        pipe_openpair.c
   *
   */
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * trace
   */
  #define TB_TRACE_MODULE_NAME    "pipe_openpair"
  #define TB_TRACE_MODULE_DEBUG   (0)
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * includes
   */
  #include "prefix.h"
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * implementation
   */
  
  /*
   * io.pipe_openpair(buffsize)
   */
  tb_int_t xm_io_pipe_openpair(lua_State* lua)
  {
      // check
      tb_assert_and_check_return_val(lua, 0);
  
      // get buffer size
      tb_size_t buffsize = (tb_size_t)luaL_checknumber(lua, 1);
  
      // init pipe
      tb_pipe_file_ref_t pipefile[2];
      if (tb_pipe_file_init_pair(pipefile, buffsize))
      {
          xm_lua_pushpointer(lua, (tb_pointer_t)pipefile[0]);
          xm_lua_pushpointer(lua, (tb_pointer_t)pipefile[1]);
      }
      else
      {
          lua_pushnil(lua);
          lua_pushnil(lua);
      }
      return 2;
  }
  