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Agent.hpp
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/*******************************************************************************
*
* File: Agent.hpp
*
* Contents: Declaration of the Agent class.
*
* Copyright 2017
*
* Author: David Juhasz (david.juhasz@tuwien.ac.at)
*
******************************************************************************/
#ifndef ROSA_CORE_AGENT_HPP
#define ROSA_CORE_AGENT_HPP
#include "rosa/core/AgentHandle.hpp"
#include "rosa/core/MessageHandler.hpp"
#include "rosa/core/MessagingSystem.hpp"
#include "rosa/core/Unit.h"
#include "rosa/support/log.h"
namespace rosa {
// Implements an Agent that is a special Unit owned by a MessagingSystem,
// capable of handling Messages as MessageHandler, and provides the
// AbstractAgent interface with AgentHandle as reference type.
class Agent : public Unit,
public MessageHandler,
public AbstractAgent<AgentHandle> {
friend class AgentHandle; // AgentHandle is our friend.
protected:
// A handle for this Agent.
const AgentHandle Self;
public:
// Ctor for instantiating all the base-classes.
template <typename Fun, typename... Funs>
Agent(const AtomValue Kind, const id_t Id, const std::string &Name,
MessagingSystem &S, Fun &&F, Funs &&... Fs);
// Dtor.
~Agent(void);
// Tells if the Agent is in valid state.
operator bool(void) const noexcept override;
// Tells if the given reference refers to this Agent.
bool operator==(const AgentHandle &H) const noexcept override;
// Returns a reference to this Agent.
AgentHandle self(void) noexcept override;
// Sends the given Message to this Agent.
void sendMessage(message_t &&M) noexcept override;
// Dumping the Agent into a string for tracing purposes.
std::string dump(void) const noexcept override;
protected:
// Returns the owning MessagingSystem.
MessagingSystem &system(void) const noexcept override;
};
template <typename Fun, typename... Funs>
Agent::Agent(const AtomValue Kind, const id_t Id, const std::string &Name,
MessagingSystem &S, Fun &&F, Funs &&... Fs)
: Unit(Kind, Id, Name, S), MessageHandler(std::move(F), std::move(Fs)...),
Self(*this, /*valid*/ true) {
LOG_TRACE("Agent is created.");
}
} // End namespace rosa
#endif // ROSA_CORE_AGENT_HPP

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