ceph/src/boost/libs/fiber/performance/fiber/bind/bind_processor_linux.cpp

   1
   2 //          Copyright Oliver Kowalke 2009.
   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 "bind_processor.hpp"
   8
   9 extern "C"
  10 {
  11 #include <pthread.h>
  12 #include <sched.h>
  13 }
  14
  15 #include <stdexcept>
  16
  17 #include <boost/config/abi_prefix.hpp>
  18
  19 void bind_to_processor( unsigned int n)
  20 {
  21     cpu_set_t cpuset;
  22     CPU_ZERO( & cpuset);
  23     CPU_SET( n, & cpuset);
  24
  25     int errno_( ::pthread_setaffinity_np( ::pthread_self(), sizeof( cpuset), & cpuset) );
  26     if ( errno_ != 0)
  27         throw std::runtime_error("::pthread_setaffinity_np() failed");
  28 }
  29
  30 #include <boost/config/abi_suffix.hpp>