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      1 <?php
      2 /*
      3  *
      4  * Copyright 2016 gRPC authors.
      5  *
      6  * Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *     http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  *
     18  */
     19 
     20 include_once 'interop_client.php';
     21 
     22 function stress_main($args)
     23 {
     24     mt_srand();
     25     set_time_limit(0);
     26 
     27     // open socket to listen as metrics server
     28     $socket = socket_create(AF_INET, SOCK_STREAM, 0);
     29     socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
     30     if (@!socket_bind($socket, 'localhost', $args['metrics_port'])) {
     31         echo "Cannot create socket for metrics server...\n";
     32         exit(1);
     33     }
     34     socket_listen($socket);
     35     socket_set_nonblock($socket);
     36 
     37     $start_time = microtime(true);
     38     $count = 0;
     39     $deadline = $args['test_duration_secs'] ?
     40                 ($start_time + $args['test_duration_secs']) : false;
     41     $num_test_cases = count($args['test_cases']);
     42     $stub = false;
     43 
     44     while (true) {
     45         $current_time = microtime(true);
     46         if ($deadline && $current_time > $deadline) {
     47             break;
     48         }
     49         if ($client_connection = socket_accept($socket)) {
     50             // there is an incoming request, respond with qps metrics
     51             $input = socket_read($client_connection, 1024);
     52             $qps = round($count / ($current_time - $start_time));
     53             socket_write($client_connection, "qps: $qps");
     54             socket_close($client_connection);
     55         } else {
     56             // do actual work, run one interop test case
     57             $args['test_case'] =
     58                 $args['test_cases'][mt_rand(0, $num_test_cases - 1)];
     59             $stub = @interop_main($args, $stub);
     60             ++$count;
     61         }
     62     }
     63     socket_close($socket);
     64     echo "Number of interop tests run in $args[test_duration_secs] ".
     65         "seconds: $count.\n";
     66 }
     67 
     68 // process command line arguments
     69 $raw_args = getopt('',
     70   ['server_addresses::',
     71    'test_cases:',
     72    'metrics_port::',
     73    'test_duration_secs::',
     74    'num_channels_per_server::',
     75    'num_stubs_per_channel::',
     76   ]);
     77 
     78 $args = [];
     79 
     80 if (empty($raw_args['server_addresses'])) {
     81     $args['server_host'] = 'localhost';
     82     $args['server_port'] = '8080';
     83 } else {
     84     $parts = explode(':', $raw_args['server_addresses']);
     85     $args['server_host'] = $parts[0];
     86     $args['server_port'] = (count($parts) == 2) ? $parts[1] : '';
     87 }
     88 
     89 $args['metrics_port'] = empty($raw_args['metrics_port']) ?
     90     '8081' : $raw_args['metrics_port'];
     91 
     92 $args['test_duration_secs'] = empty($raw_args['test_duration_secs']) ||
     93     $raw_args['test_duration_secs'] == -1 ?
     94     false : $raw_args['test_duration_secs'];
     95 
     96 $test_cases = [];
     97 $test_case_strs = explode(',', $raw_args['test_cases']);
     98 foreach ($test_case_strs as $test_case_str) {
     99     $parts = explode(':', $test_case_str);
    100     $test_cases = array_merge($test_cases, array_fill(0, $parts[1], $parts[0]));
    101 }
    102 $args['test_cases'] = $test_cases;
    103 
    104 stress_main($args);
    105