text: // Copyright (c) 2014-2017, The Monero Project
  // 
  // All rights reserved.
  // 
  // Redistribution and use in source and binary forms, with or without modification, are
  // permitted provided that the following conditions are met:
  // 
  // 1. Redistributions of source code must retain the above copyright notice, this list of
  //    conditions and the following disclaimer.
  // 
  // 2. 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.
  // 
  // 3. Neither the name of the copyright holder 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 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  // 
  // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
  
  #pragma once
  
  #include <iostream>
  
  #include <boost/config.hpp>
  
  #ifdef BOOST_WINDOWS
  #include <windows.h>
  #endif
  
  void set_process_affinity(int core)
  {
  #if defined (__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
      return;
  #elif defined(BOOST_WINDOWS)
    DWORD_PTR mask = 1;
    for (int i = 0; i < core; ++i)
    {
      mask <<= 1;
    }
    ::SetProcessAffinityMask(::GetCurrentProcess(), core);
  #elif defined(BOOST_HAS_PTHREADS)
    cpu_set_t cpuset;
    CPU_ZERO(&cpuset);
    CPU_SET(core, &cpuset);
    if (0 != ::pthread_setaffinity_np(::pthread_self(), sizeof(cpuset), &cpuset))
    {
      std::cout << "pthread_setaffinity_np - ERROR" << std::endl;
    }
  #endif
  }
  
  void set_thread_high_priority()
  {
  #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
      return;
  #elif defined(BOOST_WINDOWS)
    ::SetPriorityClass(::GetCurrentProcess(), HIGH_PRIORITY_CLASS);
  #elif defined(BOOST_HAS_PTHREADS)
    pthread_attr_t attr;
    int policy = 0;
    int max_prio_for_policy = 0;
  
    ::pthread_attr_init(&attr);
    ::pthread_attr_getschedpolicy(&attr, &policy);
    max_prio_for_policy = ::sched_get_priority_max(policy);
  
    if (0 != ::pthread_setschedprio(::pthread_self(), max_prio_for_policy))
    {
      std::cout << "pthread_setschedprio - ERROR" << std::endl;
    }
  
    ::pthread_attr_destroy(&attr);
  #endif
  }
  