mirror of
https://github.com/boostorg/fiber.git
synced 2026-02-20 02:32:19 +00:00
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
|
|
// Copyright Oliver Kowalke 2009.
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#ifndef BOOST_TASKS_DETAIL_BIND_PRCESSOR_LINUX_H
|
|
#define BOOST_TASKS_DETAIL_BIND_PRCESSOR_LINUX_H
|
|
|
|
extern "C"
|
|
{
|
|
#include <pthread.h>
|
|
#include <sched.h>
|
|
}
|
|
|
|
#include <boost/assert.hpp>
|
|
#include <boost/thread.hpp>
|
|
#include <boost/system/system_error.hpp>
|
|
|
|
#include <boost/config/abi_prefix.hpp>
|
|
|
|
namespace boost {
|
|
namespace this_thread {
|
|
|
|
inline
|
|
void bind_to_processor( unsigned int n)
|
|
{
|
|
BOOST_ASSERT( n >= 0);
|
|
BOOST_ASSERT( n < CPU_SETSIZE);
|
|
BOOST_ASSERT( n < boost::thread::hardware_concurrency() );
|
|
|
|
cpu_set_t cpuset;
|
|
CPU_ZERO( & cpuset);
|
|
CPU_SET( n, & cpuset);
|
|
|
|
int errno_( ::pthread_setaffinity_np( ::pthread_self(), sizeof( cpuset), & cpuset) );
|
|
if ( errno_ != 0)
|
|
throw boost::system::system_error(
|
|
boost::system::error_code(
|
|
errno_,
|
|
boost::system::system_category() ) );
|
|
}
|
|
|
|
inline
|
|
void bind_to_any_processor()
|
|
{
|
|
cpu_set_t cpuset;
|
|
CPU_ZERO( & cpuset);
|
|
|
|
unsigned int max( boost::thread::hardware_concurrency() );
|
|
for ( unsigned int i( 0); i < max; ++i)
|
|
CPU_SET( i, & cpuset);
|
|
|
|
int errno_( ::pthread_setaffinity_np( ::pthread_self(), sizeof( cpuset), & cpuset) );
|
|
if ( errno_ != 0)
|
|
throw boost::system::system_error(
|
|
boost::system::error_code(
|
|
errno_,
|
|
boost::system::system_category() ) );
|
|
}
|
|
|
|
}}
|
|
|
|
#include <boost/config/abi_suffix.hpp>
|
|
|
|
#endif // BOOST_TASKS_DETAIL_BIND_PRCESSOR_LINUX_H
|