321 lines
8.1 KiB
C++
321 lines
8.1 KiB
C++
/**
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* yatepbx.h
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* This file is part of the YATE Project http://YATE.null.ro
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*
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* Common C++ base classes for PBX related plugins
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*
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* Yet Another Telephony Engine - a fully featured software PBX and IVR
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* Copyright (C) 2004-2014 Null Team
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*
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* This software is distributed under multiple licenses;
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* see the COPYING file in the main directory for licensing
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* information for this specific distribution.
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*
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* This use of this software may be subject to additional restrictions.
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* See the LEGAL file in the main directory for details.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include <yatephone.h>
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#ifdef _WINDOWS
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#ifdef LIBYPBX_EXPORTS
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#define YPBX_API __declspec(dllexport)
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#else
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#ifndef LIBYPBX_STATIC
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#define YPBX_API __declspec(dllimport)
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#endif
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#endif
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#endif /* _WINDOWS */
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#ifndef YPBX_API
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#define YPBX_API
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#endif
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namespace TelEngine {
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/**
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* Hold extra informations about an active CallEndpoint
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*/
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class YPBX_API CallInfo : public NamedList
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{
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public:
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inline CallInfo(const char* name, CallEndpoint* call = 0)
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: NamedList(name), m_call(call)
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{ }
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virtual ~CallInfo()
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{ m_call = 0; }
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inline CallEndpoint* call() const
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{ return m_call; }
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inline void setCall(CallEndpoint* call)
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{ m_call = call; }
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inline void clearCall()
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{ m_call = 0; }
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/**
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* Copy one parameter from a NamedList - typically a Message
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*/
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bool copyParam(const NamedList& original, const String& name, bool clear = false);
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/**
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* Copy many parameters from a NamedList, end the list with a NULL or 0
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*/
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void copyParams(const NamedList& original, bool clear, ...);
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void fillParam(NamedList& target, const String& name, bool clear = false);
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void fillParams(NamedList& target);
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protected:
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CallEndpoint* m_call;
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int m_route;
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};
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/**
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* Hold a list of call informations
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*/
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class YPBX_API CallList
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{
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public:
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inline void append(CallInfo* call)
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{ m_calls.append(call); }
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inline void remove(CallInfo* call)
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{ m_calls.remove(call,false); }
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CallInfo* find(const String& id);
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CallInfo* find(const CallEndpoint* call);
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protected:
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ObjList m_calls;
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};
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class YPBX_API MultiRouter : public MessageReceiver, public Mutex
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{
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public:
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enum {
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Route,
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Execute,
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Hangup,
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Disconnected
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};
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MultiRouter(const char* trackName = 0);
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virtual ~MultiRouter();
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void setup(int priority = 0);
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virtual bool received(Message& msg, int id);
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virtual bool msgRoute(Message& msg, CallInfo& info, bool first);
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virtual bool msgExecute(Message& msg, CallInfo& info, bool first);
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virtual bool msgDisconnected(Message& msg, CallInfo& info);
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virtual void msgHangup(Message& msg, CallInfo& info);
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virtual Message* buildExecute(CallInfo& info, bool reroute) = 0;
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Message* defaultExecute(CallInfo& info, const char* route = 0);
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protected:
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CallList m_list;
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private:
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String m_trackName;
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MessageRelay* m_relRoute;
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MessageRelay* m_relExecute;
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MessageRelay* m_relHangup;
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MessageRelay* m_relDisconnected;
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};
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class ChanAssistList;
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/**
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* Object that assists a channel
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*/
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class YPBX_API ChanAssist : public RefObject
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{
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public:
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/**
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* Destructor
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*/
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virtual ~ChanAssist();
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/**
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* Get the String value of this object
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* @return ID of the assisted channel
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*/
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virtual const String& toString() const
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{ return m_chanId; }
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/**
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* Process the chan.startup message
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* @param msg First channel message, may be received after call.execute
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*/
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virtual void msgStartup(Message& msg);
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/**
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* Process the chan.hangup message
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* @param msg Last channel message
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*/
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virtual void msgHangup(Message& msg);
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/**
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* Process the call.execute message, copy any parameters needed later
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* @param msg Call execute message, may be received before chan.startup
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*/
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virtual void msgExecute(Message& msg);
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/**
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* Process the channel disconnect message, may connect to something else
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* @param msg The chan.disconnected message
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* @param reason The disconnection reason
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*/
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virtual bool msgDisconnect(Message& msg, const String& reason);
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/**
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* Retrieve the list that owns this object
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* @return Pointer to the owner list
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*/
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inline ChanAssistList* list() const
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{ return m_list; }
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/**
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* Get the name of the assisted channel
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* @return Identifier of the channel
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*/
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inline const String& id() const
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{ return m_chanId; }
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/**
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* Retrieve a smart pointer to an arbitrary channel
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* @param id Identifier of the channel to locate
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* @return Smart pointer to the channel or NULL if not found or dead
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*/
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static RefPointer<CallEndpoint> locate(const String& id);
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/**
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* Retrieve a smart pointer to the assisted channel
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* @return Smart pointer to the channel or NULL if not found or dead
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*/
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inline RefPointer<CallEndpoint> locate() const
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{ return locate(m_chanId); }
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protected:
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/**
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* Constructor of base class
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* @param list ChanAssistList that owns this object
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* @param id Identifier of the assisted channel
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*/
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inline ChanAssist(ChanAssistList* list, const String& id)
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: m_list(list), m_chanId(id)
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{ }
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private:
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ChanAssist(); // no default constructor please
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ChanAssistList* m_list;
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String m_chanId;
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};
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/**
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* Class keeping a list of ChanAssist objects. It also serves as base to
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* implement channel assisting plugins.
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*/
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class YPBX_API ChanAssistList : public Module
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{
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friend class ChanAssist;
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public:
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/**
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* Message realy IDs
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*/
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enum {
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Startup = Private,
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Hangup,
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Disconnected,
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AssistPrivate
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};
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/**
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* Destructor
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*/
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virtual ~ChanAssistList()
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{ }
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/**
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* Message handler called internally
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* @param msg Received nessage
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* @param id Numeric identifier of the message type
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* @return True if the message was handled and further processing should stop
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*/
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virtual bool received(Message& msg, int id);
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/**
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* Message handler for an assistant object
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* @param msg Received nessage
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* @param id Numeric identifier of the message type
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* @param assist Pointer to the matching assistant object
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* @return True if the message was handled and further processing should stop
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*/
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virtual bool received(Message& msg, int id, ChanAssist* assist);
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/**
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* Method to (re)initialize the plugin
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*/
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virtual void initialize();
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/**
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* Create a new channel assistant
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* @param msg Message that triggered the creation
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* @param id Channel's identifier
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* @return Pointer to new assistant object, NULL if unacceptable
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*/
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virtual ChanAssist* create(Message& msg, const String& id) = 0;
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/**
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* Initialize the plugin for the first time
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* @param priority Priority used to install message handlers
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*/
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virtual void init(int priority = 15);
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/**
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* Find a channel assistant by channel ID
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* @param id Identifier of the assisted channel
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* @return Pointer to the assistant object
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*/
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inline ChanAssist* find(const String& id) const
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{ return static_cast<ChanAssist*>(m_calls[id]); }
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protected:
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/**
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* Constructor
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* @param name Name of the module
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* @param earlyInit True to attempt to initialize module before others
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*/
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inline ChanAssistList(const char* name, bool earlyInit = false)
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: Module(name, "misc", earlyInit), m_first(true)
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{ }
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/**
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* Removes an assistant object from list
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* @param assist Object to remove from list
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*/
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void removeAssist(ChanAssist* assist);
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/**
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* Access to the assisted calls list
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* @return The HashList holding the calls
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*/
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inline HashList& calls()
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{ return m_calls; }
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/**
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* Access to the assisted calls list
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* @return The HashList holding the calls
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*/
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inline const HashList& calls() const
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{ return m_calls; }
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private:
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ChanAssistList(); // no default constructor please
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HashList m_calls;
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bool m_first;
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};
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}
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/* vi: set ts=8 sw=4 sts=4 noet: */
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