<?php
/*
 *
 * Copyright 2015, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
namespace Grpc;
require_once realpath(dirname(__FILE__) . '/../autoload.php');

/**
 * Represents an active call that allows for sending and recieving messages in
 * streams in any order.
 */
class BidiStreamingSurfaceActiveCall extends AbstractSurfaceActiveCall {

  /**
   * Reads the next value from the server.
   * @return The next value from the server, or null if there is none
   */
  public function read() {
    return $this->_read();
  }

  /**
   * Writes a single message to the server. This cannot be called after
   * writesDone is called.
   * @param $value The message to send
   */
  public function write($value) {
    $this->_write($value);
  }

  /**
   * Indicate that no more writes will be sent
   */
  public function writesDone() {
    $this->_writesDone();
  }

  /**
   * Wait for the server to send the status, and return it.
   * @return object The status object, with integer $code and string $details
   *     members
   */
  public function getStatus() {
    return $this->_getStatus();
  }
}