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/*
* Ivy League
*
* Ivy bus access
*
* Copyright 1997-2000
* Centre d'Etudes de la Navigation Aerienne (CENA)
*
* by Stephane Chatty
*
* $Id$
*
*/
#ifndef BusAccess_H_
#define BusAccess_H_
#include "Datagram.h"
#include "Stream.h"
#include "BufStream.h"
#include "SignalHandler.h"
#include "ivl/List.h"
#include "ivl/IdTable.h"
#include "ivl/String.h"
#include "ivl/HashTable.h"
#include "ivl/Event.h"
#include "ivl/Trigger.h"
class IvlInetAddress;
class IvlBusSubscription;
class IvlBusTrigger;
class IvlBaseReaction;
class IvlBusAccess : public IvlDatagram, public IvlBaseScheduledHandler {
friend class IvlBusAgent;
protected:
static int Version;
static const char* const DefaultBus;
static const char* const DefaultBusNet;
static sword const DefaultBusPort;
IvlString Name;
sword ListenPort;
sword BroadcastPort;
IvlStream* Server;
IvlListOf<IvlBusAgent> Agents;
IvlListOf<IvlBusTrigger> LocalSubscriptions;
IvlIdTableOf<IvlBusTrigger> IdToSubscription;
void HandleRead ();
void Clear ();
void DeferredHandle (int);
void HandleEvent (int, const char*);
bool CheckUnicity (IvlBusAgent*, sword);
public:
IvlTrigger NewAgents;
IvlBusAccess (const char*, const char* = 0);
~IvlBusAccess ();
void Subscribe (IvlBaseReaction&, const char*, ...);
void Emit (const char*, ...);
};
class IvlBusAgent : public IvlBufStream {
friend class IvlBusAccess;
friend class IvlBusServer;
protected:
IvlListOf<IvlBusSubscription> RemoteSubscriptions;
sword RemoteId;
IvlBusAccess* MyBus;
IvlString Name;
void WriteString (const char*);
void ProcessLine (const char*);
IvlBusAgent (int, IvlBusAccess*);
IvlBusAgent (lword, sword, IvlBusAccess*);
~IvlBusAgent ();
void HandleRead ();
void SendLocalSubscription (const IvlBusTrigger*);
void SayHello ();
void SayBye ();
void EmitEvent (const char*);
public:
IvlTrigger Bye;
IvlHashedArrayOf<IvlTrigger> DirectMsg;
void Emit (int, const char*, ...);
inline const char* GetName () const { return Name; }
};
class IvlBusAgentEvent : public IvlEvent {
public:
static IvlEventType* BusNewAgent, *BusAgentBye;
protected:
IvlBusAgent* Agent;
public:
IvlBusAgentEvent (IvlBusAgent*, IvlEventType*);
~IvlBusAgentEvent ();
inline IvlBusAgent* GetAgent () const { return Agent;}
};
class IvlDirectEvent : public IvlEvent {
public:
IvlBusAgent* Agent;
IvlString Msg;
public:
IvlDirectEvent (IvlBusAgent*, const char*);
~IvlDirectEvent ();
};
class IvlBusEvent : public IvlEvent {
public:
IvlString Regexp;
int NbMatches;
IvlListOf<IvlString> MatchList;
IvlString Matches;
IvlBusEvent (const char*, const char*);
~IvlBusEvent ();
};
#endif /* BusAccess_H_ */
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