kernel/machine/hosted/SchedulerTimer.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 KERNEL_MACHINE_HOSTED_SCHEDULERTIMER_H
#define KERNEL_MACHINE_HOSTED_SCHEDULERTIMER_H

#include "pedigree/kernel/machine/IrqManager.h"
#include "pedigree/kernel/machine/SchedulerTimer.h"
#include "pedigree/kernel/processor/IoPort.h"
#include "pedigree/kernel/processor/state.h"

namespace __pedigree_hosted
{
#include <signal.h>
#include <time.h>
}  // namespace __pedigree_hosted

class HostedSchedulerTimer : public SchedulerTimer, private IrqHandler
{
  public:
    inline static HostedSchedulerTimer &instance()
    {
        return m_Instance;
    }

    //
    // SchedulerTimer interface
    //
    virtual bool registerHandler(TimerHandler *handler);

    bool initialise() INITIALISATION_ONLY;
    void uninitialise();

  protected:
    HostedSchedulerTimer() INITIALISATION_ONLY;
    inline virtual ~HostedSchedulerTimer()
    {
    }

  private:
    HostedSchedulerTimer(const HostedSchedulerTimer &);
    HostedSchedulerTimer &operator=(const HostedSchedulerTimer &);

    //
    // IrqHandler interface
    //
    virtual bool irq(irq_id_t number, InterruptState &state);

    irq_id_t m_IrqId;
    __pedigree_hosted::timer_t m_Timer;

    TimerHandler *m_Handler;

    static HostedSchedulerTimer m_Instance;
};

#endif