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<?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 sending and recieving messages.
* Subclasses restrict how data can be sent and recieved.
*/
abstract class AbstractSurfaceActiveCall {
private $active_call;
private $deserialize;
/**
* Create a new surface active call.
* @param Channel $channel The channel to communicate on
* @param string $method The method to call on the remote server
* @param callable $deserialize The function to deserialize a value
* @param array $metadata Metadata to send with the call, if applicable
* @param long $flags Write flags to use with this call
*/
public function __construct(Channel $channel,
$method,
callable $deserialize,
$metadata = array(),
$flags = 0) {
$this->active_call = new ActiveCall($channel, $method, $metadata, $flags);
$this->deserialize = $deserialize;
}
/**
* @return The metadata sent by the server
*/
public function getMetadata() {
return $this->metadata();
}
/**
* Cancels the call
*/
public function cancel() {
$this->active_call->cancel();
}
protected function _read() {
$response = $this->active_call->read();
if ($response === null) {
return null;
}
return call_user_func($this->deserialize, $response);
}
protected function _write($value) {
return $this->active_call->write($value->serialize());
}
protected function _writesDone() {
$this->active_call->writesDone();
}
protected function _getStatus() {
return $this->active_call->getStatus();
}
}
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