1 files changed, 119 insertions, 0 deletions
diff --git a/src/php/tests/interop/stress_client.php b/src/php/tests/interop/stress_client.php
new file mode 100644
index 0000000000..f9cfe8aba5
--- /dev/null
+++ b/src/php/tests/interop/stress_client.php
@@ -0,0 +1,119 @@
+<?php
+/*
+ *
+ * Copyright 2016, 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.
+ *
+ */
+
+include_once 'interop_client.php';
+
+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: $count.\n";
+}
+
+// process command line arguments
+$raw_args = getopt('',
+  ['server_addresses::',
+   'test_cases:',
+   'metrics_port::',
+   'test_duration_secs::',
+   'num_channels_per_server::',
+   'num_stubs_per_channel::',
+  ]);
+
+$args = [];
+
+if (empty($raw_args['server_addresses'])) {
+    $args['server_host'] = 'localhost';
+    $args['server_port'] = '8080';
+} else {
+    $parts = explode(':', $raw_args['server_addresses']);
+    $args['server_host'] = $parts[0];
+    $args['server_port'] = (count($parts) == 2) ? $parts[1] : '';
+}
+
+$args['metrics_port'] = empty($raw_args['metrics_port']) ?
+    '8081' : $raw_args['metrics_port'];
+
+$args['test_duration_secs'] = empty($raw_args['test_duration_secs']) ||
+    $raw_args['test_duration_secs'] == -1 ?
+    false : $raw_args['test_duration_secs'];
+
+$test_cases = [];
+$test_case_strs = explode(',', $raw_args['test_cases']);
+foreach ($test_case_strs as $test_case_str) {
+    $parts = explode(':', $test_case_str);
+    $test_cases = array_merge($test_cases, array_fill(0, $parts[1], $parts[0]));
+}
+$args['test_cases'] = $test_cases;
+
+stress_main($args);