126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
#pragma once
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/****************************************************************************
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Copyright (c) 2006, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "core/refcounted.h"
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#include "core/ptr.h"
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#include "messaging/message.h"
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#include "messaging/handler.h"
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//------------------------------------------------------------------------------
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namespace Messaging
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{
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class Port : public Core::RefCounted
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{
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__DeclareClass(Port);
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public:
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/// override to register accepted messages
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virtual void SetupAcceptedMessages();
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/// attach a message handler to the port
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void AttachHandler(const GPtr<Handler>& h);
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/// remove a message handler from the port
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void RemoveHandler(const GPtr<Handler>& h);
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/// remove all message handler from the port
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void RemoveAllHandlers();
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/// return number of handlers attached to the port
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SizeT GetNumHandlers() const;
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/// get a message handler by index
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const GPtr<Handler>& GetHandlerAtIndex(IndexT i) const;
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/// send a message to the port
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virtual void Send(const GPtr<Message>& msg);
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/// get the array of accepted messages (sorted)
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const Util::Array<const Id*>& GetAcceptedMessages() const;
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/// return true if port accepts this msg
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bool AcceptsMessage(const Id& msgId) const;
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/// handle a single accepted message
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virtual void HandleMessage(const GPtr<Messaging::Message>& msg);
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protected:
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/// register a single accepted message
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void RegisterMessage(const Id& msgId);
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private:
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Util::Array<GPtr<Handler> > handlers;
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Util::Array<const Id*> acceptedMessageIds;
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};
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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SizeT
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Port::GetNumHandlers() const
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{
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return this->handlers.Size();
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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void
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Port::RegisterMessage(const Id& msgId)
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{
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// ignore duplicate message ids (may happen when derived classes
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// process the same messages)
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if (InvalidIndex == this->acceptedMessageIds.BinarySearchIndex(&msgId))
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{
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this->acceptedMessageIds.InsertSorted(&msgId);
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}
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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const Util::Array<const Id*>&
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Port::GetAcceptedMessages() const
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{
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return this->acceptedMessageIds;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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const GPtr<Handler>&
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Port::GetHandlerAtIndex(IndexT i) const
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{
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return this->handlers[i];
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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bool
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Port::AcceptsMessage(const Id& msgId) const
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{
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return (InvalidIndex != this->acceptedMessageIds.FindIndex(&msgId));
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}
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} // namespace Messaging
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//------------------------------------------------------------------------------
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