RoundRobinCoreAllocator.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 ROUND_ROBIN_CORE_ALLOCATOR_H
#define ROUND_ROBIN_CORE_ALLOCATOR_H
 
#include "pedigree/kernel/Spinlock.h"
#include "pedigree/kernel/process/ThreadToCoreAllocationAlgorithm.h"
#include "pedigree/kernel/utilities/List.h"
#include "pedigree/kernel/utilities/Tree.h"
 
class PerProcessorScheduler;
class Thread;
 
class RoundRobinCoreAllocator : public ThreadToCoreAllocationAlgorithm {
 public:
  RoundRobinCoreAllocator();
  virtual ~RoundRobinCoreAllocator();
 
  virtual bool initialise(List<PerProcessorScheduler*>& procList);
 
  virtual PerProcessorScheduler* allocateThread(Thread* pThread);
 
 private:
  Tree<PerProcessorScheduler*, PerProcessorScheduler*> m_ProcMap;
 
  PerProcessorScheduler* m_pNext;
  Spinlock m_Lock;
};
 
#endif