Init Repo

vendor/swoole/examples/db_pool.php

@@ -0,0 +1,58 @@
+<?php
+$serv = new swoole_http_server("127.0.0.1", 9500);
+
+$serv->set(array(
+    'worker_num' => 100,
+    'task_worker_num' => 20, //database connection pool
+    'db_uri' => 'mysql:host=127.0.0.1;dbname=test',
+    'db_user' => 'root',
+    'db_passwd' => 'root',
+));
+
+function my_onRequest_sync($req, $resp)
+{
+    global $serv;
+    $result = $serv->taskwait("show tables");
+    if ($result !== false)
+    {
+        $resp->end(var_export($result['data'], true));
+        return;
+    }
+    else
+    {
+        $resp->status(500);
+        $resp->end("Server Error, Timeout\n");
+    }
+}
+
+function my_onTask($serv, $task_id, $from_id, $sql)
+{
+    static $link = null;
+    if ($link == null)
+    {
+        $link = new PDO($serv->setting['db_uri'], $serv->setting['db_user'], $serv->setting['db_passwd']);;
+        if (!$link)
+        {
+            $link = null;
+            return array("data" => '', 'error' => "connect database failed.");
+        }
+    }
+    $result = $link->query($sql);
+    if (!$result)
+    {
+        return array("data" => '', 'error' => "query error");
+    }
+    $data = $result->fetchAll();
+    return array("data" => $data);
+}
+
+function my_onFinish($serv, $data)
+{
+    echo "AsyncTask Finish:Connect.PID=" . posix_getpid() . PHP_EOL;
+}
+
+$serv->on('Request', 'my_onRequest_sync');
+$serv->on('Task', 'my_onTask');
+$serv->on('Finish', 'my_onFinish');
+
+$serv->start();