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// @file msg.h - interthread message passing
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,b
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <deque>
#include "task.h"
namespace mongo {
namespace task {
/** See task::PortUnitTest in task.cpp for an example of usage.
*/
class Port : private Task {
protected:
/** implement a receiver of messages for the port.
@return false to stop the port / terminate the thread (i.e. you want to return true)
*/
virtual bool got(const any& msg) = 0;
virtual string name() = 0; // names the thread
public:
/** send a message to the port */
void send(const any& msg);
/** typical usage is: task::fork( foo.task() ); */
shared_ptr<Task> taskPtr() { return shared_ptr<Task>(static_cast<Task*>(this)); }
Port() { }
virtual ~Port() { }
private:
void doWork();
deque<any> d;
boost::mutex m;
boost::condition c;
};
}
}
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