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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;
/**
* Represents an active call that sends a single message and then gets a stream
* of reponses.
*/
class ServerStreamingCall extends AbstractCall
{
/**
* Start the call.
*
* @param $data The data to send
* @param array $metadata Metadata to send with the call, if applicable
* @param array $options an array of options, possible keys:
* 'flags' => a number
*/
public function start($data, $metadata = [], $options = [])
{
$message_array = ['message' => $data->serialize()];
if (isset($options['flags'])) {
$message_array['flags'] = $options['flags'];
}
$event = $this->call->startBatch([
OP_SEND_INITIAL_METADATA => $metadata,
OP_RECV_INITIAL_METADATA => true,
OP_SEND_MESSAGE => $message_array,
OP_SEND_CLOSE_FROM_CLIENT => true,
]);
$this->metadata = $event->metadata;
}
/**
* @return An iterator of response values
*/
public function responses()
{
$response = $this->call->startBatch([
OP_RECV_MESSAGE => true,
])->message;
while ($response !== null) {
yield $this->deserializeResponse($response);
$response = $this->call->startBatch([
OP_RECV_MESSAGE => true,
])->message;
}
}
/**
* Wait for the server to send the status, and return it.
*
* @return object The status object, with integer $code, string $details,
* and array $metadata members
*/
public function getStatus()
{
$status_event = $this->call->startBatch([
OP_RECV_STATUS_ON_CLIENT => true,
]);
$this->trailing_metadata = $status_event->status->metadata;
return $status_event->status;
}
}
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