threadutils.h

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/*
 * Copyright (c) 2016 - Adjacent Link LLC, Bridgewater, New Jersey
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 * * Neither the name of Adjacent Link LLC nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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 */

#ifndef EMANETHREADUTILS_HEADER_
#define EMANETHREADUTILS_HEADER_

#include <thread>
#include <pthread.h>

namespace EMANE
{
  namespace ThreadUtils
  {
    inline
    int elevate(std::thread & thread)
    {
      std::thread::native_handle_type handle{thread.native_handle()};

      int iPolicy{};

      sched_param param;

      int iRet{};

      iRet = pthread_getschedparam(handle,&iPolicy,&param);

      if(!iRet)
        {
         iRet = pthread_setschedprio(handle,param.sched_priority+1);
        }

      return iRet;
    }

    inline
    int cancel(std::thread & thread)
    {
      return pthread_cancel(thread.native_handle());
    }
  }
}

#endif // EMANETHREADUTILS_HEADER_