AbstractCall.php

<?php
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 *
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namespace Grpc;

/**
 * Class AbstractCall.
 * @package Grpc
 */
abstract class AbstractCall
{
    /**
     * @var Call
     */
    protected $call;
    protected $deserialize;
    protected $metadata;
    protected $trailing_metadata;

    /**
     * Create a new Call wrapper object.
     *
     * @param Channel  $channel     The channel to communicate on
     * @param string   $method      The method to call on the
     *                              remote server
     * @param callback $deserialize A callback function to deserialize
     *                              the response
     * @param array    $options     Call options (optional)
     */
    public function __construct(Channel $channel,
                                $method,
                                $deserialize,
                                array $options = [])
    {
        if (array_key_exists('timeout', $options) &&
            is_numeric($timeout = $options['timeout'])
        ) {
            $now = Timeval::now();
            $delta = new Timeval($timeout);