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76 lines
2.0 KiB
76 lines
2.0 KiB
7 years ago
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<?php
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/*
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* This file is part of SwiftMailer.
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* (c) 2004-2009 Chris Corbyn
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* An abstract means of writing data.
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*
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* Classes implementing this interface may use a subsystem which requires less
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* memory than working with large strings of data.
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*
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* @author Chris Corbyn
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*/
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interface Swift_InputByteStream
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{
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/**
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* Writes $bytes to the end of the stream.
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*
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* Writing may not happen immediately if the stream chooses to buffer. If
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* you want to write these bytes with immediate effect, call {@link commit()}
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* after calling write().
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*
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* This method returns the sequence ID of the write (i.e. 1 for first, 2 for
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* second, etc etc).
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*
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* @param string $bytes
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*
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* @throws Swift_IoException
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*
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* @return int
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*/
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public function write($bytes);
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/**
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* For any bytes that are currently buffered inside the stream, force them
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* off the buffer.
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*
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* @throws Swift_IoException
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*/
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public function commit();
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/**
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* Attach $is to this stream.
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*
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* The stream acts as an observer, receiving all data that is written.
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* All {@link write()} and {@link flushBuffers()} operations will be mirrored.
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*
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* @param Swift_InputByteStream $is
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*/
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public function bind(Swift_InputByteStream $is);
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/**
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* Remove an already bound stream.
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*
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* If $is is not bound, no errors will be raised.
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* If the stream currently has any buffered data it will be written to $is
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* before unbinding occurs.
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*
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* @param Swift_InputByteStream $is
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*/
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public function unbind(Swift_InputByteStream $is);
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/**
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* Flush the contents of the stream (empty it) and set the internal pointer
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* to the beginning.
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*
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* @throws Swift_IoException
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*/
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public function flushBuffers();
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}
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