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+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Buffers input and output to a resource.
+ *
+ * @author Chris Corbyn
+ */
+interface Swift_Transport_IoBuffer extends Swift_InputByteStream, Swift_OutputByteStream
+{
+ /** A socket buffer over TCP */
+ const TYPE_SOCKET = 0x0001;
+
+ /** A process buffer with I/O support */
+ const TYPE_PROCESS = 0x0010;
+
+ /**
+ * Perform any initialization needed, using the given $params.
+ *
+ * Parameters will vary depending upon the type of IoBuffer used.
+ *
+ * @param array $params
+ */
+ public function initialize(array $params);
+
+ /**
+ * Set an individual param on the buffer (e.g. switching to SSL).
+ *
+ * @param string $param
+ * @param mixed $value
+ */
+ public function setParam($param, $value);
+
+ /**
+ * Perform any shutdown logic needed.
+ */
+ public function terminate();
+
+ /**
+ * Set an array of string replacements which should be made on data written
+ * to the buffer.
+ *
+ * This could replace LF with CRLF for example.
+ *
+ * @param string[] $replacements
+ */
+ public function setWriteTranslations(array $replacements);
+
+ /**
+ * Get a line of output (including any CRLF).
+ *
+ * The $sequence number comes from any writes and may or may not be used
+ * depending upon the implementation.
+ *
+ * @param int $sequence of last write to scan from
+ *
+ * @return string
+ */
+ public function readLine($sequence);
+}