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+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/. */
+/* */
+/* NXAGENT, 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 __Handlers_H__
+#define __Handlers_H__
+
+/*
+ * Current size of the display buffer.
+ */
+
+extern int nxagentBuffer;
+
+/*
+ * Set if we had to block waiting for
+ * the display to become writable.
+ */
+
+extern int nxagentBlocking;
+
+/*
+ * Current congestion level based on
+ * the sync requests awaited or the
+ * proxy tokens.
+ */
+
+extern int nxagentCongestion;
+
+/*
+ * Bytes read from the agent's clients
+ * and written to the display socket.
+ */
+
+extern double nxagentBytesIn;
+extern double nxagentBytesOut;
+
+/*
+ * Total number of descriptors ready
+ * as reported by the wakeup handler.
+ */
+
+extern int nxagentReady;
+
+/*
+ * Timestamp of the last write to the
+ * remote display.
+ */
+
+extern int nxagentFlush;
+
+/*
+ * Let the dispatch loop yield control to
+ * a different client after a fair amount
+ * of time or after enough data has been
+ * processed.
+ */
+
+struct _DispatchRec
+{
+ int client;
+
+ double in;
+ double out;
+
+ unsigned long start;
+};
+
+extern struct _DispatchRec nxagentDispatch;
+
+/*
+ * Ensure that we synchronize with the X
+ * server after a given amount of output
+ * is produced.
+ */
+
+struct _TokensRec
+{
+ int soft;
+ int hard;
+
+ int pending;
+};
+
+extern struct _TokensRec nxagentTokens;
+
+/*
+ * The agent's block and wakeup handlers.
+ */
+
+void nxagentBlockHandler(pointer data, struct timeval **timeout, pointer mask);
+void nxagentWakeupHandler(pointer data, int count, pointer mask);
+
+/*
+ * Executed after each request processed.
+ */
+
+void nxagentDispatchHandler(ClientPtr client, int in, int out);
+
+void nxagentShadowBlockHandler(pointer data, struct timeval **timeout, pointer mask);
+void nxagentShadowWakeupHandler(pointer data, int count, pointer mask);
+
+extern GCPtr nxagentShadowGCPtr;
+extern unsigned char nxagentShadowDepth;
+extern int nxagentShadowWidth;
+extern int nxagentShadowHeight;
+extern char *nxagentShadowBuffer;
+
+#endif /* __Handlers_H__ */