86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
// Copyright (c) 2014-2016, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <iostream>
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#include <boost/config.hpp>
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#ifdef BOOST_WINDOWS
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#include <windows.h>
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#endif
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void set_process_affinity(int core)
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{
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#if defined (__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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return;
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#elif defined(BOOST_WINDOWS)
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DWORD_PTR mask = 1;
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for (int i = 0; i < core; ++i)
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{
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mask <<= 1;
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}
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::SetProcessAffinityMask(::GetCurrentProcess(), core);
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#elif defined(BOOST_HAS_PTHREADS)
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cpu_set_t cpuset;
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CPU_ZERO(&cpuset);
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CPU_SET(core, &cpuset);
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if (0 != ::pthread_setaffinity_np(::pthread_self(), sizeof(cpuset), &cpuset))
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{
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std::cout << "pthread_setaffinity_np - ERROR" << std::endl;
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}
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#endif
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}
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void set_thread_high_priority()
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{
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#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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return;
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#elif defined(BOOST_WINDOWS)
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::SetPriorityClass(::GetCurrentProcess(), HIGH_PRIORITY_CLASS);
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#elif defined(BOOST_HAS_PTHREADS)
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pthread_attr_t attr;
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int policy = 0;
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int max_prio_for_policy = 0;
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::pthread_attr_init(&attr);
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::pthread_attr_getschedpolicy(&attr, &policy);
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max_prio_for_policy = ::sched_get_priority_max(policy);
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if (0 != ::pthread_setschedprio(::pthread_self(), max_prio_for_policy))
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{
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std::cout << "pthread_setschedprio - ERROR" << std::endl;
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}
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::pthread_attr_destroy(&attr);
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#endif
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}
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