PthreadScheduleParam.h

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//=============================================================================
//  PthreadScheduleParam class
//-----------------------------------------------------------------------------
//  POSIX Pthread class library
//  Copyright (C) 1997-1999  The University of Texas
//
//  This library is free software; you can redistribute it and/or modify it
//  under the terms of the GNU Library General Public License as published
//  by the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This library 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
//  Library General Public License for more details.
//
//  The GNU Public License is available in the file LICENSE, or you
//  can write to the Free Software Foundation, Inc., 59 Temple Place -
//  Suite 330, Boston, MA 02111-1307, USA, or you can find it on the
//  World Wide Web at http://www.fsf.org.
//=============================================================================

#ifndef PthreadScheduleParam_h
#define PthreadScheduleParam_h
#pragma once

#ifdef EXTERNAL_TEMPLATES
#     pragma interface
#endif

#include <cpn/common.h>
#include <cpn/threading/PthreadDefs.h>

#if defined(OS_AIX)
    #include <sys/sched.h>
#else
    #include <sched.h>
#endif


class PthreadScheduleParam {
  public:
    PthreadScheduleParam(void) {  }
    PthreadScheduleParam(int priority) { param.sched_priority = priority; }
    operator sched_param* (void)        { return &param; }

    int Priority(int priority)  { return param.sched_priority = priority; }
    int Priority(void) const    { return param.sched_priority; }

  #ifdef _POSIX_PRIORITY_SCHEDULING
    static int PriorityMax(int policy)  { return sched_get_priority_max(policy); }
    static int PriorityMin(int policy)  { return sched_get_priority_min(policy); }

    static void Yield(void)     { sched_yield(); }
  #endif

  private:
    sched_param     param;
};


#endif