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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/EncodeBuffer.h
parent9193d11eeeea933e293acd5e0f03fa4e9887186b (diff)
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nxcomp: Switch to autoreconf.
Diffstat (limited to 'nxcomp/EncodeBuffer.h')
-rw-r--r--nxcomp/EncodeBuffer.h183
1 files changed, 0 insertions, 183 deletions
diff --git a/nxcomp/EncodeBuffer.h b/nxcomp/EncodeBuffer.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 EncodeBuffer_H
-#define EncodeBuffer_H
-
-#include "IntCache.h"
-#include "CharCache.h"
-#include "XidCache.h"
-#include "FreeCache.h"
-#include "OpcodeCache.h"
-#include "ActionCache.h"
-
-#define ENCODE_BUFFER_DEFAULT_SIZE 16384
-
-//
-// This should match the maximum size of
-// a single message added to write buffer
-// (see WriteBuffer.h).
-//
-
-#define ENCODE_BUFFER_OVERFLOW_SIZE 4194304
-
-//
-// Adjust for the control messages and the
-// frame length added by the proxy.
-//
-
-#define ENCODE_BUFFER_PREFIX_SIZE 64
-
-//
-// The encode routines may write one byte
-// past the nominal end of the encode buffer.
-// This additional byte is included in the
-// payload. This is actually a harmless bug.
-//
-
-#define ENCODE_BUFFER_POSTFIX_SIZE 1
-
-class EncodeBuffer
-{
- public:
-
- EncodeBuffer();
-
- ~EncodeBuffer();
-
- void setSize(unsigned int initialSize, unsigned int thresholdSize,
- unsigned int maximumSize);
-
- void encodeValue(unsigned int value, unsigned int numBits,
- unsigned int blockSize = 0);
-
- void encodeCachedValue(unsigned int value, unsigned int numBits,
- IntCache &cache, unsigned int blockSize = 0);
-
- void encodeCachedValue(unsigned char value, unsigned int numBits,
- CharCache &cache, unsigned int blockSize = 0);
-
- void encodeDiffCachedValue(const unsigned int value, unsigned int &previous,
- unsigned int numBits, IntCache &cache,
- unsigned int blockSize = 0)
- {
- encodeCachedValue((value - 1) - previous, numBits, cache, blockSize);
-
- previous = value;
- }
-
- void encodeBoolValue(unsigned int value)
- {
- encodeValue(value, 1);
- }
-
- void encodeOpcodeValue(unsigned char value, OpcodeCache &cache)
- {
- encodeCachedValue(value, 8, cache.base_[cache.slot_], 8);
-
- cache.slot_ = value;
- }
-
- void encodeActionValue(unsigned char value, ActionCache &cache)
- {
- unsigned short position = 0;
-
- encodeActionValue(value, position, cache);
- }
-
- void encodeActionValue(unsigned char value, unsigned short position,
- ActionCache &cache);
-
- void encodeNewXidValue(unsigned int value, unsigned int &lastId,
- IntCache &lastIdCache, IntCache &cache,
- FreeCache &freeCache);
-
- void encodeNewXidValue(unsigned int value, unsigned int &lastId,
- IntCache &lastIdCache, XidCache &cache,
- FreeCache &freeCache);
-
- void encodeXidValue(unsigned int value, XidCache &cache);
-
- void encodeFreeXidValue(unsigned int value, FreeCache &cache);
-
- void encodeTextData(const unsigned char *buffer, unsigned int numBytes)
- {
- encodeMemory(buffer, numBytes);
- }
-
- void encodeIntData(const unsigned char *buffer, unsigned int numBytes)
- {
- encodeMemory(buffer, numBytes);
- }
-
- void encodeLongData(const unsigned char *buffer, unsigned int numBytes)
- {
- encodeMemory(buffer, numBytes);
- }
-
- void encodeMemory(const unsigned char *buffer, unsigned int numBytes);
-
- unsigned char *getData()
- {
- return buffer_;
- }
-
- unsigned int getLength() const;
-
- unsigned int getBits() const
- {
- return ((nextDest_ - buffer_) << 3) + (7 - destShift_);
- }
-
- unsigned int diffBits();
-
- void fullReset();
-
- private:
-
- void growBuffer(unsigned int numBytes = 0);
-
- void alignBuffer();
-
- unsigned int size_;
- unsigned char *buffer_;
-
- //
- // This points to the first byte
- // just beyond end of the buffer.
- //
-
- const unsigned char *end_;
-
- unsigned char *nextDest_;
- unsigned int destShift_;
- unsigned int lastBits_;
-
- unsigned int initialSize_;
- unsigned int thresholdSize_;
- unsigned int maximumSize_;
-};
-
-#endif /* EncodeBuffer_H */