1 files changed, 177 insertions, 0 deletions
diff --git a/nxcomp/ChangeGC.h b/nxcomp/ChangeGC.h
new file mode 100644
index 000000000..81b808d87
--- /dev/null
+++ b/nxcomp/ChangeGC.h
@@ -0,0 +1,177 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2010 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of Medialogic S.p.A.                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef ChangeGC_H
+#define ChangeGC_H
+
+#include "Message.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  DUMP
+
+//
+// Set default values.
+//
+
+#define CHANGEGC_ENABLE_CACHE                           1
+#define CHANGEGC_ENABLE_DATA                            0
+#define CHANGEGC_ENABLE_SPLIT                           0
+#define CHANGEGC_ENABLE_COMPRESS                        0
+
+#define CHANGEGC_DATA_LIMIT                             144
+#define CHANGEGC_DATA_OFFSET                            12
+
+#define CHANGEGC_CACHE_SLOTS                            3000
+#define CHANGEGC_CACHE_THRESHOLD                        3
+#define CHANGEGC_CACHE_LOWER_THRESHOLD                  1
+
+//
+// The message class.
+//
+
+class ChangeGCMessage : public Message
+{
+  friend class ChangeGCStore;
+
+  public:
+
+  ChangeGCMessage()
+  {
+  }
+
+  ~ChangeGCMessage()
+  {
+  }
+
+  //
+  // Put here the fields which constitute 
+  // the 'identity' part of the message.
+  //
+
+  private:
+
+  unsigned int gcontext;
+  unsigned int value_mask;
+};
+
+class ChangeGCStore : public MessageStore
+{
+  //
+  // Constructors and destructors.
+  //
+
+  public:
+
+  ChangeGCStore() : MessageStore()
+  {
+    enableCache    = CHANGEGC_ENABLE_CACHE;
+    enableData     = CHANGEGC_ENABLE_DATA;
+    enableSplit    = CHANGEGC_ENABLE_SPLIT;
+    enableCompress = CHANGEGC_ENABLE_COMPRESS;
+
+    dataLimit  = CHANGEGC_DATA_LIMIT;
+    dataOffset = CHANGEGC_DATA_OFFSET;
+
+    cacheSlots          = CHANGEGC_CACHE_SLOTS;
+    cacheThreshold      = CHANGEGC_CACHE_THRESHOLD;
+    cacheLowerThreshold = CHANGEGC_CACHE_LOWER_THRESHOLD;
+
+    messages_ -> resize(cacheSlots);
+
+    for (T_messages::iterator i = messages_ -> begin();
+             i < messages_ -> end(); i++)
+    {
+      *i = NULL;
+    }
+
+    temporary_ = NULL;
+  }
+
+  virtual ~ChangeGCStore()
+  {
+    for (T_messages::iterator i = messages_ -> begin();
+             i < messages_ -> end(); i++)
+    {
+      destroy(*i);
+    }
+
+    destroy(temporary_);
+  }
+
+  virtual const char *name() const
+  {
+    return "ChangeGC";
+  }
+
+  virtual unsigned char opcode() const
+  {
+    return X_ChangeGC;
+  }
+
+  virtual unsigned int storage() const
+  {
+    return sizeof(ChangeGCMessage);
+  }
+
+  //
+  // Message handling methods.
+  //
+
+  public:
+
+  virtual Message *create() const
+  {
+    return new ChangeGCMessage();
+  }
+
+  virtual Message *create(const Message &message) const
+  {
+    return new ChangeGCMessage((const ChangeGCMessage &) message);
+  }
+
+  virtual void destroy(Message *message) const
+  {
+    delete (ChangeGCMessage *) message;
+  }
+
+  virtual int parseIdentity(Message *message, const unsigned char *buffer,
+                                unsigned int size, int bigEndian) const;
+
+  virtual int unparseIdentity(const Message *message, unsigned char *buffer,
+                                  unsigned int size, int bigEndian) const;
+
+  virtual void identityChecksum(const Message *message, const unsigned char *buffer,
+                                    unsigned int size, int bigEndian) const;
+
+  virtual void dumpIdentity(const Message *message) const;
+
+  virtual void updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                  const Message *cachedMessage,
+                                      ChannelCache *channelCache) const;
+
+  virtual void updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                  ChannelCache *channelCache) const;
+};
+
+#endif /* ChangeGC_H */