| // |
| // posix_thread.hpp |
| // ~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2008 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 BOOST_ASIO_DETAIL_POSIX_THREAD_HPP |
| #define BOOST_ASIO_DETAIL_POSIX_THREAD_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| #include <boost/config.hpp> |
| #include <boost/system/system_error.hpp> |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #if defined(BOOST_HAS_PTHREADS) |
| |
| #include <boost/asio/detail/push_options.hpp> |
| #include <memory> |
| #include <boost/throw_exception.hpp> |
| #include <pthread.h> |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #include <boost/asio/error.hpp> |
| #include <boost/asio/detail/noncopyable.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace detail { |
| |
| extern "C" void* asio_detail_posix_thread_function(void* arg); |
| |
| class posix_thread |
| : private noncopyable |
| { |
| public: |
| // Constructor. |
| template <typename Function> |
| posix_thread(Function f) |
| : joined_(false) |
| { |
| std::auto_ptr<func_base> arg(new func<Function>(f)); |
| int error = ::pthread_create(&thread_, 0, |
| asio_detail_posix_thread_function, arg.get()); |
| if (error != 0) |
| { |
| boost::system::system_error e( |
| boost::system::error_code(error, |
| boost::asio::error::get_system_category()), |
| "thread"); |
| boost::throw_exception(e); |
| } |
| arg.release(); |
| } |
| |
| // Destructor. |
| ~posix_thread() |
| { |
| if (!joined_) |
| ::pthread_detach(thread_); |
| } |
| |
| // Wait for the thread to exit. |
| void join() |
| { |
| if (!joined_) |
| { |
| ::pthread_join(thread_, 0); |
| joined_ = true; |
| } |
| } |
| |
| private: |
| friend void* asio_detail_posix_thread_function(void* arg); |
| |
| class func_base |
| { |
| public: |
| virtual ~func_base() {} |
| virtual void run() = 0; |
| }; |
| |
| template <typename Function> |
| class func |
| : public func_base |
| { |
| public: |
| func(Function f) |
| : f_(f) |
| { |
| } |
| |
| virtual void run() |
| { |
| f_(); |
| } |
| |
| private: |
| Function f_; |
| }; |
| |
| ::pthread_t thread_; |
| bool joined_; |
| }; |
| |
| inline void* asio_detail_posix_thread_function(void* arg) |
| { |
| std::auto_ptr<posix_thread::func_base> f( |
| static_cast<posix_thread::func_base*>(arg)); |
| f->run(); |
| return 0; |
| } |
| |
| } // namespace detail |
| } // namespace asio |
| } // namespace boost |
| |
| #endif // defined(BOOST_HAS_PTHREADS) |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // BOOST_ASIO_DETAIL_POSIX_THREAD_HPP |