thread.h

/*
 * thread.h
 * This file is part of dbPager Classes Library (DCL)
 *
 * Copyright (c) 2008 Dennis Prochko <wolfsoft@mail.ru>
 *
 * DCL is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 3.
 *
 * DCL is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with DCL; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

#ifndef _THREAD_H_
#define _THREAD_H_

#include <dcl/exception.h>
#include <dcl/delegate.h>

namespace dbp {


class thread_exception: public exception {
public:
        thread_exception(const std::string &msg): exception(msg) { }
};


class thread_int {
public:
        typedef delegate1<thread_int&,void> execute_handler;
        virtual ~thread_int() { };
        virtual void start() = 0;
        virtual void stop() = 0;
        virtual void pause() = 0;
        virtual void resume() = 0;

        virtual void on_execute(execute_handler handler) = 0;
        virtual void wait_for() = 0;
};


class thread: public thread_int {
public:
        thread();
        thread(const thread &src);
        thread& operator=(const thread &src) {
                on_execute(src._handler);
                return *this;
        }
        virtual ~thread();
        virtual void start();
        virtual void stop();
        virtual void pause();
        virtual void resume();
        virtual void on_execute(thread_int::execute_handler handler);
        virtual void wait_for();
private:
        thread_int::execute_handler _handler;
        thread_int *pimpl;
};

}

#endif /*_THREAD_H_*/