1 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) 6 7 #include "boost/fiber/numa/pin_thread.hpp" 8 9 extern "C" { 10 #include <errno.h> 11 #include <sys/types.h> 12 #include <sys/processor.h> 13 #include <sys/procset.h> 14 } 15 16 #include <system_error> 17 18 #ifdef BOOST_HAS_ABI_HEADERS 19 # include BOOST_ABI_PREFIX 20 #endif 21 22 namespace boost { 23 namespace fibers { 24 namespace numa { 25 26 BOOST_FIBERS_DECL pin_thread(std::uint32_t cpuid)27void pin_thread( std::uint32_t cpuid) { 28 pin_thread( cpuid, P_MYID); 29 } 30 31 BOOST_FIBERS_DECL pin_thread(std::uint32_t cpuid,std::thread::native_handle_type h)32void pin_thread( std::uint32_t cpuid, std::thread::native_handle_type h) { 33 if ( BOOST_UNLIKELY( -1 == ::processor_bind( P_LWPID, 34 h, 35 static_cast< processorid_t >( cpuid), 36 0) ) ) { 37 throw std::system_error( 38 std::error_code( errno, std::system_category() ), 39 "processor_bind() failed"); 40 } 41 } 42 43 }}} 44 45 #ifdef BOOST_HAS_ABI_HEADERS 46 # include BOOST_ABI_SUFFIX 47 #endif 48