add

vendor/open-smf/connection-pool/src/ConnectionPoolInterface.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Smf\ConnectionPool;
+
+interface ConnectionPoolInterface
+{
+
+    /**
+     * Initialize the connection pool
+     * @return bool
+     */
+    public function init(): bool;
+
+    /**
+     * Return a connection to the connection pool
+     * @param mixed $connection
+     * @return bool
+     */
+    public function return($connection): bool;
+
+    /**
+     * Borrow a connection to the connection pool
+     * @return mixed
+     * @throws BorrowConnectionTimeoutException
+     */
+    public function borrow();
+
+    /**
+     * Close the connection pool, release the resource of all connections
+     * @return bool
+     */
+    public function close(): bool;
+}