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//
// detail/impl/posix_thread.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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 ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
#define ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#if defined(ASIO_HAS_PTHREADS)
#include "asio/detail/posix_thread.hpp"
#include "asio/detail/throw_error.hpp"
#include "asio/error.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace detail {
posix_thread::~posix_thread()
{
if (!joined_)
::pthread_detach(thread_);
}
void posix_thread::join()
{
if (!joined_)
{
::pthread_join(thread_, 0);
joined_ = true;
}
}
std::size_t posix_thread::hardware_concurrency()
{
#if defined(_SC_NPROCESSORS_ONLN)
long result = sysconf(_SC_NPROCESSORS_ONLN);
if (result > 0)
return result;
#endif // defined(_SC_NPROCESSORS_ONLN)
return 0;
}
void posix_thread::start_thread(func_base* arg)
{
int error = ::pthread_create(&thread_, 0,
asio_detail_posix_thread_function, arg);
if (error != 0)
{
delete arg;
asio::error_code ec(error,
asio::error::get_system_category());
asio::detail::throw_error(ec, "thread");
}
}
void* asio_detail_posix_thread_function(void* arg)
{
posix_thread::auto_func_base_ptr func = {
static_cast<posix_thread::func_base*>(arg) };
func.ptr->run();
return 0;
}
} // namespace detail
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_HAS_PTHREADS)
#endif // ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
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