SchedulingAlgorithm.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef SCHEDULING_ALGORITHM_H
#define SCHEDULING_ALGORITHM_H
 
class Thread;
 
#define MAX_PRIORITIES 8
#define DEFAULT_PRIORITY 1
 
class SchedulingAlgorithm {
 public:
  virtual ~SchedulingAlgorithm();
 
  virtual void addThread(Thread* pThread) = 0;
 
  virtual void removeThread(Thread* pThread) = 0;
 
  virtual Thread* getNext(Thread* pCurrentThread) = 0;
 
  virtual void threadStatusChanged(Thread* pThread) = 0;
};
 
#endif