/*******************************************************************************
* Copyright (c) 2012 Draeger Medical GmbH (http://www.draeger.com).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* CONTRIBUTORS:
* Peter Karlitschek (initial contribution)
*
*******************************************************************************/
#ifndef MESSAGESERVICE_H_
#define MESSAGESERVICE_H_
#include "common/messaging/IMessageService.h"
#include "common/messaging/Message.h"
#include "common/messaging/Address.h"
#include "common/messaging/StaticMessageMemory.h"
#include "common/messaging/MessageDispatcher.h"
#include "etDatatypes.h"
#include "osal/etMutex.h"
#include "osal/etSema.h"
#include "osal/etThread.h"
#include "osal/etTimer.h"
namespace etRuntime {
class MessageService: public RTObject, public IMessageService {
public:
enum ExecMode {
POLLED, BLOCKED, MIXED
};
MessageService(IRTObject* parent, IMessageService::ExecMode mode, int node, int thread, const String& name, IMessageMemory* memory, int priority = 0);
MessageService(IRTObject* parent, IMessageService::ExecMode mode, etTime interval, int node, int thread, const String& name, IMessageMemory* memory, int priority = 0);
virtual ~MessageService();
void run();
virtual void start();
virtual void terminate();
virtual Address getFreeAddress();
virtual void freeAddress(const Address& addr);
virtual void addMessageReceiver(IMessageReceiver& receiver);
virtual void removeMessageReceiver(IMessageReceiver& receiver);
virtual void addPollingMessageReceiver(IMessageReceiver& receiver);
virtual void removePollingMessageReceiver(IMessageReceiver& receiver);
virtual void receive(const Message* msg);
Message* getMessageBuffer(int size);
void returnMessageBuffer(const Message* buffer);
const Address& getAddress(void) const { return m_address; }
String toString() const;
protected:
long getLastMessageTimestamp() const {
return m_lastMessageTimestamp;
}
void pollingTask();
private:
// static functions for c calls
static void run(void* self) {
static_cast<MessageService*>(self)->run();
}
static void pollingTask(void* self) {
static_cast<MessageService*>(self)->pollingTask();
}
etBool m_running;
IMessageService::ExecMode m_execMode;
long m_lastMessageTimestamp;
etMutex m_mutex;
etSema m_executionSemaphore;
etThread m_thread;
etTimer m_timer;
Address m_address;
MessageSeQueue m_messageQueue;
MessageDispatcher m_messageDispatcher;
IMessageMemory* m_messageMemory;
void MessageService_init(etTime interval, int priority); // common ctor
MessageService();
MessageService(MessageService const&);
MessageService& operator=(MessageService const&);
};
} /* namespace etRuntime */
#endif /* MESSAGESERVICE_H_ */
