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2 // Copyright Oliver Kowalke 2017.
3 // Distributed under the Boost Software License, Version 1.0.
4 // (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
7 #include "boost/fiber/numa/pin_thread.hpp"
11 #include <pthread_np.h>
14 #include <system_error>
16 #ifdef BOOST_HAS_ABI_HEADERS
17 # include BOOST_ABI_PREFIX
25 void pin_thread( std::uint32_t cpuid
) {
26 pin_thread( cpuid
, ::pthread_self() );
30 void pin_thread( std::uint32_t cpuid
, std::thread::native_handle_type h
) {
33 CPU_SET( cpuid
, & set
);
35 if ( BOOST_UNLIKELY( 0 != ( err
= ::pthread_setaffinity_np( h
, sizeof( set
), & set
) ) ) ) {
36 throw std::system_error(
37 std::error_code( err
, std::system_category() ),
38 "pthread_setaffinity_np() failed");
44 #ifdef BOOST_HAS_ABI_HEADERS
45 # include BOOST_ABI_SUFFIX