function stress_main($args)
{
mt_srand();
set_time_limit(0);
// open socket to listen as metrics server
$socket = socket_create(AF_INET, SOCK_STREAM, 0);
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
if (@(!socket_bind($socket, 'localhost', $args['metrics_port']))) {
echo "Cannot create socket for metrics server...\n";
exit(1);
}
socket_listen($socket);
socket_set_nonblock($socket);
$start_time = microtime(true);
$count = 0;
$deadline = $args['test_duration_secs'] ? $start_time + $args['test_duration_secs'] : false;
$num_test_cases = count($args['test_cases']);
$stub = false;
while (true) {
$current_time = microtime(true);
if ($deadline && $current_time > $deadline) {
break;
}
if ($client_connection = socket_accept($socket)) {
// there is an incoming request, respond with qps metrics
$input = socket_read($client_connection, 1024);
$qps = round($count / ($current_time - $start_time));
socket_write($client_connection, "qps: {$qps}");
socket_close($client_connection);
} else {
// do actual work, run one interop test case
$args['test_case'] = $args['test_cases'][mt_rand(0, $num_test_cases - 1)];
$stub = @interop_main($args, $stub);
++$count;
}
}
socket_close($socket);
echo "Number of interop tests run in {$args['test_duration_secs']} " . "seconds: {$count}.\n";
}
case 'status_code_and_message':
statusCodeAndMessage($stub);
break;
case 'unimplemented_method':
unimplementedMethod($stub);
break;
case 'service_account_creds':
serviceAccountCreds($stub, $args);
break;
case 'compute_engine_creds':
computeEngineCreds($stub, $args);
break;
case 'jwt_token_creds':
jwtTokenCreds($stub, $args);
break;
case 'oauth2_auth_token':
oauth2AuthToken($stub, $args);
break;
case 'per_rpc_creds':
perRpcCreds($stub, $args);
break;
default:
echo "Unsupported test case {$test_case}\n";
exit(1);
}
return $stub;
}
if (isset($_SERVER['PHP_SELF']) && preg_match('/interop_client/', $_SERVER['PHP_SELF'])) {
$args = getopt('', ['server_host:', 'server_port:', 'test_case:', 'use_tls::', 'use_test_ca::', 'server_host_override:', 'oauth_scope:', 'default_service_account:']);
interop_main($args);
}