init & add agent & add job

2025-12-17 18:26:44 +00:00 · 2019-01-15 10:02:28 +08:00
parent 71f1f10e2c
commit d0a4b891b5
321 changed files with 24657 additions and 1 deletions
--- a/predis/src/Monitor/Consumer.php
+++ b/predis/src/Monitor/Consumer.php
@@ -0,0 +1,173 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) Daniele Alessandri <suppakilla@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Monitor;
+
+use Predis\ClientInterface;
+use Predis\Connection\AggregateConnectionInterface;
+use Predis\NotSupportedException;
+
+/**
+ * Redis MONITOR consumer.
+ *
+ * @author Daniele Alessandri <suppakilla@gmail.com>
+ */
+class Consumer implements \Iterator
+{
+    private $client;
+    private $valid;
+    private $position;
+
+    /**
+     * @param ClientInterface $client Client instance used by the consumer.
+     */
+    public function __construct(ClientInterface $client)
+    {
+        $this->assertClient($client);
+
+        $this->client = $client;
+
+        $this->start();
+    }
+
+    /**
+     * Automatically stops the consumer when the garbage collector kicks in.
+     */
+    public function __destruct()
+    {
+        $this->stop();
+    }
+
+    /**
+     * Checks if the passed client instance satisfies the required conditions
+     * needed to initialize a monitor consumer.
+     *
+     * @param ClientInterface $client Client instance used by the consumer.
+     *
+     * @throws NotSupportedException
+     */
+    private function assertClient(ClientInterface $client)
+    {
+        if ($client->getConnection() instanceof AggregateConnectionInterface) {
+            throw new NotSupportedException(
+                'Cannot initialize a monitor consumer over aggregate connections.'
+            );
+        }
+
+        if ($client->getProfile()->supportsCommand('MONITOR') === false) {
+            throw new NotSupportedException("The current profile does not support 'MONITOR'.");
+        }
+    }
+
+    /**
+     * Initializes the consumer and sends the MONITOR command to the server.
+     */
+    protected function start()
+    {
+        $this->client->executeCommand(
+            $this->client->createCommand('MONITOR')
+        );
+        $this->valid = true;
+    }
+
+    /**
+     * Stops the consumer. Internally this is done by disconnecting from server
+     * since there is no way to terminate the stream initialized by MONITOR.
+     */
+    public function stop()
+    {
+        $this->client->disconnect();
+        $this->valid = false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function rewind()
+    {
+        // NOOP
+    }
+
+    /**
+     * Returns the last message payload retrieved from the server.
+     *
+     * @return object
+     */
+    public function current()
+    {
+        return $this->getValue();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function key()
+    {
+        return $this->position;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function next()
+    {
+        ++$this->position;
+    }
+
+    /**
+     * Checks if the the consumer is still in a valid state to continue.
+     *
+     * @return bool
+     */
+    public function valid()
+    {
+        return $this->valid;
+    }
+
+    /**
+     * Waits for a new message from the server generated by MONITOR and returns
+     * it when available.
+     *
+     * @return object
+     */
+    private function getValue()
+    {
+        $database = 0;
+        $client = null;
+        $event = $this->client->getConnection()->read();
+
+        $callback = function ($matches) use (&$database, &$client) {
+            if (2 === $count = count($matches)) {
+                // Redis <= 2.4
+                $database = (int) $matches[1];
+            }
+
+            if (4 === $count) {
+                // Redis >= 2.6
+                $database = (int) $matches[2];
+                $client = $matches[3];
+            }
+
+            return ' ';
+        };
+
+        $event = preg_replace_callback('/ \(db (\d+)\) | \[(\d+) (.*?)\] /', $callback, $event, 1);
+        @list($timestamp, $command, $arguments) = explode(' ', $event, 3);
+
+        return (object) array(
+            'timestamp' => (float) $timestamp,
+            'database' => $database,
+            'client' => $client,
+            'command' => substr($command, 1, -1),
+            'arguments' => $arguments,
+        );
+    }
+}