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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2017-06-30 20:13:51 +0200
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2017-07-26 10:12:43 +0200
commitf76c82403888bb498973ec974dbfd20e4edb02fe (patch)
treebe0cb6c112d9d9fb46387fbd114727510197ddec /nxcomp/GenericChannel.h
parent9193d11eeeea933e293acd5e0f03fa4e9887186b (diff)
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nxcomp: Switch to autoreconf.
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-rw-r--r--nxcomp/GenericChannel.h440
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diff --git a/nxcomp/GenericChannel.h b/nxcomp/GenericChannel.h
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-/**************************************************************************/
-/* */
-/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */
-/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */
-/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */
-/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */
-/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
-/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */
-/* */
-/* NXCOMP, NX protocol compression and NX extensions to this software */
-/* are copyright of the aforementioned persons and companies. */
-/* */
-/* Redistribution and use of the present software is allowed according */
-/* to terms specified in the file LICENSE.nxcomp which comes in the */
-/* source distribution. */
-/* */
-/* All rights reserved. */
-/* */
-/* NOTE: This software has received contributions from various other */
-/* contributors, only the core maintainers and supporters are listed as */
-/* copyright holders. Please contact us, if you feel you should be listed */
-/* as copyright holder, as well. */
-/* */
-/**************************************************************************/
-
-#ifndef GenericChannel_H
-#define GenericChannel_H
-
-#include "Channel.h"
-
-#include "Statistics.h"
-
-#include "GenericReadBuffer.h"
-
-//
-// Set the verbosity level.
-//
-
-#define PANIC
-#undef TEST
-#undef DEBUG
-
-//
-// Define this to log a line when a channel
-// is created or destroyed.
-//
-
-#undef REFERENCES
-
-//
-// This class implements the client
-// side compression of X protocol.
-//
-
-class GenericChannel : public Channel
-{
- public:
-
- GenericChannel(Transport *transport, StaticCompressor *compressor);
-
- virtual ~GenericChannel();
-
- virtual int handleRead(EncodeBuffer &encodeBuffer, const unsigned char *message,
- unsigned int length);
-
- virtual int handleWrite(const unsigned char *message, unsigned int length);
-
-
- virtual int handleSplit(EncodeBuffer &encodeBuffer, MessageStore *store,
- T_store_action action, int position, const unsigned char opcode,
- const unsigned char *buffer, const unsigned int size)
- {
- return 0;
- }
-
- virtual int handleSplit(DecodeBuffer &decodeBuffer, MessageStore *store,
- T_store_action action, int position, unsigned char &opcode,
- unsigned char *&buffer, unsigned int &size)
- {
- return 0;
- }
-
-
- virtual int handleSplit(EncodeBuffer &encodeBuffer)
- {
- return 0;
- }
-
- virtual int handleSplit(DecodeBuffer &decodeBuffer)
- {
- return 0;
- }
-
- virtual int handleSplitEvent(EncodeBuffer &encodeBuffer, Split *split)
- {
- return 0;
- }
-
- virtual int handleSplitEvent(DecodeBuffer &decodeBuffer)
- {
- return 0;
- }
-
- virtual int handleMotion(EncodeBuffer &encodeBuffer)
- {
- return 0;
- }
-
- virtual int handleCompletion(EncodeBuffer &encodeBuffer);
-
- virtual int handleConfiguration();
-
- virtual int handleFinish();
-
- virtual int handleAsyncEvents()
- {
- return 0;
- }
-
- virtual int needSplit() const
- {
- return 0;
- }
-
- virtual int needMotion() const
- {
- return 0;
- }
-
- virtual T_channel_type getType() const = 0;
-
- //
- // Initialize the static members.
- //
-
- static int setReferences();
-
- protected:
-
- //
- // Generic channels are considered to be
- // in congestion state as soon as the
- // socket is blocked for write.
- //
-
- virtual int isCongested()
- {
- return (transport_ -> blocked() == 1);
- }
-
- virtual int isReliable()
- {
- return 0;
- }
-
- //
- // Model generic channels' encoding and
- // decoding policy.
- //
-
- virtual int isCompressed() = 0;
-
- //
- // Return true if the channel contains
- // time sensitive data.
- //
-
- virtual int isPrioritized() = 0;
-
- //
- // Record the protocol bits for the
- // specific service.
- //
-
- virtual void addProtocolBits(unsigned int bitsIn, unsigned int bitsOut) = 0;
-
- //
- // Channel's own read buffer.
- //
-
- GenericReadBuffer readBuffer_;
-
- private:
-
- //
- // Keep track of object's creation
- // and deletion.
- //
-
- #ifdef REFERENCES
-
- static int references_;
-
- #endif
-};
-
-class CupsChannel : public GenericChannel
-{
- public:
-
- CupsChannel(Transport *transport, StaticCompressor *compressor)
-
- : GenericChannel(transport, compressor)
- {
- }
-
- virtual ~CupsChannel()
- {
- }
-
- protected:
-
- virtual T_channel_type getType() const
- {
- return channel_cups;
- }
-
- virtual int isCompressed()
- {
- // Since ProtoStep8 (#issue 108)
- return 0;
- }
-
- virtual int isPrioritized()
- {
- return 0;
- }
-
- virtual void addProtocolBits(unsigned int bitsIn,
- unsigned int bitsOut)
- {
- statistics -> addCupsBits(bitsIn, bitsOut);
- }
-};
-
-class SmbChannel : public GenericChannel
-{
- public:
-
- SmbChannel(Transport *transport, StaticCompressor *compressor)
-
- : GenericChannel(transport, compressor)
- {
- }
-
- virtual ~SmbChannel()
- {
- }
-
- protected:
-
- virtual T_channel_type getType() const
- {
- return channel_smb;
- }
-
- virtual int isCompressed()
- {
- // Since ProtoStep8 (#issue 108)
- return 0;
- }
-
- virtual int isPrioritized()
- {
- return 0;
- }
-
- virtual void addProtocolBits(unsigned int bitsIn,
- unsigned int bitsOut)
- {
- statistics -> addSmbBits(bitsIn, bitsOut);
- }
-};
-
-class MediaChannel : public GenericChannel
-{
- public:
-
- MediaChannel(Transport *transport, StaticCompressor *compressor)
-
- : GenericChannel(transport, compressor)
- {
- }
-
- virtual ~MediaChannel()
- {
- }
-
- protected:
-
- virtual T_channel_type getType() const
- {
- return channel_media;
- }
-
- //
- // Don't try to compress the media data.
- //
-
- virtual int isCompressed()
- {
- return 0;
- }
-
- //
- // Reduce the latency of media channels
- // by setting them as prioritized, even
- // if this will take away bandwidth from
- // the X channels.
- //
-
- virtual int isPrioritized()
- {
- return 1;
- }
-
- virtual void addProtocolBits(unsigned int bitsIn,
- unsigned int bitsOut)
- {
- statistics -> addMediaBits(bitsIn, bitsOut);
- }
-};
-
-class HttpChannel : public GenericChannel
-{
- public:
-
- HttpChannel(Transport *transport, StaticCompressor *compressor)
-
- : GenericChannel(transport, compressor)
- {
- }
-
- virtual ~HttpChannel()
- {
- }
-
- protected:
-
- virtual T_channel_type getType() const
- {
- return channel_http;
- }
-
- virtual int isCompressed()
- {
- // Since ProtoStep8 (#issue 108)
- return 0;
- }
-
- virtual int isPrioritized()
- {
- return 0;
- }
-
- virtual void addProtocolBits(unsigned int bitsIn,
- unsigned int bitsOut)
- {
- statistics -> addHttpBits(bitsIn, bitsOut);
- }
-};
-
-class FontChannel : public GenericChannel
-{
- public:
-
- FontChannel(Transport *transport, StaticCompressor *compressor)
-
- : GenericChannel(transport, compressor)
- {
- }
-
- virtual ~FontChannel()
- {
- }
-
- protected:
-
- virtual T_channel_type getType() const
- {
- return channel_font;
- }
-
- virtual int isCompressed()
- {
- // Since ProtoStep8 (#issue 108)
- return 0;
- }
-
- virtual int isPrioritized()
- {
- return 1;
- }
-
- virtual void addProtocolBits(unsigned int bitsIn,
- unsigned int bitsOut)
- {
- statistics -> addFontBits(bitsIn, bitsOut);
- }
-};
-
-class SlaveChannel : public GenericChannel
-{
- public:
-
- SlaveChannel(Transport *transport, StaticCompressor *compressor)
-
- : GenericChannel(transport, compressor)
- {
- }
-
- virtual ~SlaveChannel()
- {
- }
-
- protected:
-
- virtual T_channel_type getType() const
- {
- return channel_slave;
- }
-
- virtual int isCompressed()
- {
- return 0;
- }
-
- virtual int isPrioritized()
- {
- return 0;
- }
-
- virtual void addProtocolBits(unsigned int bitsIn,
- unsigned int bitsOut)
- {
- statistics -> addSlaveBits(bitsIn, bitsOut);
- }
-};
-
-#endif /* GenericChannel_H */