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/*
Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com>
This program 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; either version 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _PROHIBIT_THREAD_H
#define _PROHIBIT_THREAD_H
#include <set>
#include "threads/mutex.h"
#include "threads/thread.h"
using namespace std;
// This class implements an interface to keep track of thread id's that are
// prohibited from some actions, e.g. taking a certain lock
class i_prohibit_thread {
private:
// List of thread id's that are prohibited from some action
mutable t_mutex prohibited_mutex;
set<pthread_t> prohibited_threads;
public:
// Operations on the prohibited set of thread id's
// Add/remove the thread id of the calling thread
void add_prohibited_thread(void);
void remove_prohibited_thread(void);
// Returns true if the current thread is prohibited
bool is_prohibited_thread(void) const;
};
#endif
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