/******************************************************************************
 * SAGE - Scalable Adaptive Graphics Environment
 *
 * Module: sageBridge.h
 * Author : Byungil Jeong
 *
 * Copyright (C) 2004 Electronic Visualization Laboratory,
 * University of Illinois at Chicago
 *
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the distribution.
 *  * Neither the name of the University of Illinois at Chicago nor
 *    the names of its contributors may be used to endorse or promote
 *    products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Direct questions, comments etc about SAGE to sage_users@listserv.uic.edu or 
 * http://www.evl.uic.edu/cavern/forum/
 *
 *****************************************************************************/
 
#ifndef SAGEBRIDGE_H_
#define SAGEBRIDGE_H_

#include "sage.h"

#define MAX_BRIDGE_NODE 100

class messageInterface;
class sageBridge;
class streamProtocol;
class bridgeSharedData;
class sageTcpModule;
class sageUdpModule;
class sageNwConfig;
class appInstance;
class sageSyncServer;
class syncGroup;
class sageEvent;
class sageAudioBridge;


typedef struct {
   sageBridge     *This;
   streamProtocol *nwObj;
} nwCheckThreadParam;

class sageBridge {
protected:
   bridgeSharedData *shared;
   sageTcpModule *tcpObj;
   sageUdpModule *udpObj;
   sageNwConfig *nwCfg;
   sageAudioBridge *audioBridge;

   bool master;
   char masterIP[SAGE_IP_LEN];
   int streamPort, msgPort, syncPort, audioPort;
   int slaveNum;
   int memSize;
   int allocPolicy;
   char slaveIPs[MAX_BRIDGE_NODE][SAGE_IP_LEN];
   int slaveList[MAX_BRIDGE_NODE];
   
   messageInterface *msgInf;
   std::vector<appInstance*> appInstList;
   int instNum;
   sageSyncServer *syncServerObj;   
   //sageSyncClient *syncClientObj;

   bool bridgeEnd;
   int syncGroupID;
   
   int initMaster(const char *cFile);
   int initSlave(char *data);
   int launchSlaves();
   int regApp(sageMessage &msg, int clientID);
   int shareApp(char *msgData, int clientID);
   int connectApp(appInstance *inst);
   int sendStreamInfo(appInstance *inst);
   
	appInstance* findApp(int id, int& index);

   int connectToFSManager(appInstance *inst);
   int connectToFSManager(appInstance *inst, char *ip, int port);
   syncGroup* addSyncGroup();
   
   appInstance* clientIDtoAppInstance(int clientID, int &orgIdx);
   appInstance* forwardToAppinstance(sageMessage &msg, int clientID);
   appInstance* findAppInstance(int instID);
   appInstance* delieverMessage(sageMessage &msg, int clientID);
   int parseMessage(sageMessage &msg, int clientID);
   int parseEvent(sageEvent *event);

   int findMinLoadNode();  
   int startPerformanceReport(sageMessage &msg);
   int stopPerformanceReport(sageMessage &msg);   
   int perfReport();
   int shutdownApp(int instID, bool fsmToApp);
   int forwardToSail(int instID, sageMessage &msg);
   int shutdownAllApps();

   int initNetworks();
   int checkNetworks();
   int initStreams(char *msg, streamProtocol *nwObj);
   
   
   static void* msgCheckThread(void *args);
   static void* perfReportThread(void *args);
   static void* nwCheckThread(void *args);
   
public:
   sageBridge(int argc, char **argv);
   ~sageBridge();
   void mainLoop();
   
   friend class appInstance;
};

#endif