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authorTimothy Pearson <[email protected]>2012-01-30 20:18:15 -0600
committerTimothy Pearson <[email protected]>2012-01-30 20:18:15 -0600
commit255918c59ce22a1523436e8a9b703c54e753106f (patch)
tree42037c692227e57be17c87e0c1ea898e15169127 /tdecore/network/ksocketbuffer_p.h
parentee0c55320dd17dd6cbef85a9bbaa00259ee7eb9a (diff)
downloadtdelibs-255918c59ce22a1523436e8a9b703c54e753106f.tar.gz
tdelibs-255918c59ce22a1523436e8a9b703c54e753106f.zip
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-/* -*- C++ -*-
- * Copyright (C) 2003 Thiago Macieira <[email protected]>
- *
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef TDESOCKETBUFFER_P_H
-#define TDESOCKETBUFFER_P_H
-
-#include <tqmutex.h>
-#include <tqcstring.h>
-#include <tqvaluelist.h>
-#include "kiobuffer.h"
-
-namespace KNetwork {
-
-class KActiveSocketBase;
-
- namespace Internal {
-
-/**
- * @internal
- * @class KSocketBuffer tdesocketbuffer_p.h tdesocketbuffer_p.h
- * @brief generic socket buffering code
- *
- * This class implements generic buffering used by @ref KBufferedSocket.
- *
- * @author Thiago Macieira <[email protected]>
- */
-class KSocketBuffer: public KIOBufferBase
-{
-public:
- /**
- * Default constructor.
- *
- * @param size the maximum size of the buffer
- */
- KSocketBuffer(TQ_LONG size = -1);
-
- /**
- * Copy constructor.
- */
- KSocketBuffer(const KSocketBuffer& other);
-
- /**
- * Virtual destructor. Frees the buffer and discards its contents.
- */
- virtual ~KSocketBuffer();
-
- /**
- * Assignment operator.
- */
- KSocketBuffer& operator=(const KSocketBuffer& other);
-
- /**
- * Returns true if a line can be read from the buffer.
- */
- virtual bool canReadLine() const;
-
- /**
- * Reads a line from the buffer and discard it from the buffer.
- */
- virtual TQCString readLine();
-
- /**
- * Returns the number of bytes in the buffer. Note that this is not
- * the size of the buffer.
- *
- * @sa size
- */
- virtual TQ_LONG length() const;
-
- /**
- * Retrieves the buffer size. The value of -1 indicates that
- * the buffer has no defined upper limit.
- *
- * @sa length for the length of the data stored
- */
- virtual TQ_LONG size() const;
-
- /**
- * Sets the size of the buffer, if allowed.
- *
- * @param size the maximum size, use -1 for unlimited.
- * @returns true on success, false if an error occurred.
- * @note if the new size is less than length(), the buffer will be truncated
- */
- virtual bool setSize(TQ_LONG size);
-
- /**
- * Adds data to the end of the buffer.
- *
- * @param data the data to be added
- * @param len the data length, in bytes
- * @returns the number of bytes added to the end of the buffer.
- */
- virtual TQ_LONG feedBuffer(const char *data, TQ_LONG len);
-
- /**
- * Clears the buffer.
- */
- virtual void clear();
-
- /**
- * Consumes data from the beginning of the buffer.
- *
- * @param data where to copy the data to
- * @param maxlen the maximum length to copy, in bytes
- * @param discard if true, the bytes copied will be discarded
- * @returns the number of bytes copied from the buffer
- */
- virtual TQ_LONG consumeBuffer(char *data, TQ_LONG maxlen, bool discard = true);
-
- /**
- * Sends at most @p len bytes of data to the I/O Device.
- *
- * @param device the device to which to send data
- * @param len the amount of data to send; -1 to send everything
- * @returns the number of bytes sent and discarded from the buffer, -1
- * indicates an error.
- */
- virtual TQ_LONG sendTo(KActiveSocketBase* device, TQ_LONG len = -1);
-
- /**
- * Tries to receive @p len bytes of data from the I/O device.
- *
- * @param device the device to receive from
- * @param len the number of bytes to receive; -1 to read as much
- * as possible
- * @returns the number of bytes received and copied into the buffer,
- * -1 indicates an error.
- */
- virtual TQ_LONG receiveFrom(KActiveSocketBase* device, TQ_LONG len = -1);
-
-protected:
- mutable TQMutex m_mutex;
- TQValueList<TQByteArray> m_list;
- TQIODevice::Offset m_offset; ///< offset of the start of data in the first element
-
- TQ_LONG m_size; ///< the maximum length of the buffer
- mutable TQ_LONG m_length;
-};
-
-} } // namespace KNetwork::Internal
-
-#endif