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Diffstat (limited to 'ext/asio/detail/posix_thread.hpp')
-rw-r--r-- | ext/asio/detail/posix_thread.hpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/ext/asio/detail/posix_thread.hpp b/ext/asio/detail/posix_thread.hpp new file mode 100644 index 0000000000..e0fea75129 --- /dev/null +++ b/ext/asio/detail/posix_thread.hpp @@ -0,0 +1,129 @@ +// +// posix_thread.hpp +// ~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2010 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_POSIX_THREAD_HPP +#define ASIO_DETAIL_POSIX_THREAD_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include "asio/detail/push_options.hpp" + +#include "asio/detail/push_options.hpp" +#include <boost/config.hpp> +#include "asio/detail/pop_options.hpp" + +#if defined(BOOST_HAS_PTHREADS) + +#include "asio/detail/push_options.hpp" +#include <memory> +#include <boost/throw_exception.hpp> +#include <pthread.h> +#include "asio/detail/pop_options.hpp" + +#include "asio/error.hpp" +#include "asio/system_error.hpp" +#include "asio/detail/noncopyable.hpp" + +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) + { + asio::system_error e( + asio::error_code(error, + 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 + +#endif // defined(BOOST_HAS_PTHREADS) + +#include "asio/detail/pop_options.hpp" + +#endif // ASIO_DETAIL_POSIX_THREAD_HPP |