1 // 2 // detail/posix_thread.hpp 3 // ~~~~~~~~~~~~~~~~~~~~~~~ 4 // 5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) 6 // 7 // Distributed under the Boost Software License, Version 1.0. (See accompanying 8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9 // 10 11 #ifndef BOOST_ASIO_DETAIL_POSIX_THREAD_HPP 12 #define BOOST_ASIO_DETAIL_POSIX_THREAD_HPP 13 14 #if defined(_MSC_VER) && (_MSC_VER >= 1200) 15 # pragma once 16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) 17 18 #include <boost/asio/detail/config.hpp> 19 20 #if defined(BOOST_ASIO_HAS_PTHREADS) 21 22 #include <pthread.h> 23 #include <boost/asio/detail/noncopyable.hpp> 24 25 #include <boost/asio/detail/push_options.hpp> 26 27 namespace boost { 28 namespace asio { 29 namespace detail { 30 31 extern "C" 32 { 33 BOOST_ASIO_DECL void* boost_asio_detail_posix_thread_function(void* arg); 34 } 35 36 class posix_thread 37 : private noncopyable 38 { 39 public: 40 // Constructor. 41 template <typename Function> posix_thread(Function f,unsigned int=0)42 posix_thread(Function f, unsigned int = 0) 43 : joined_(false) 44 { 45 start_thread(new func<Function>(f)); 46 } 47 48 // Destructor. 49 BOOST_ASIO_DECL ~posix_thread(); 50 51 // Wait for the thread to exit. 52 BOOST_ASIO_DECL void join(); 53 54 private: 55 friend void* boost_asio_detail_posix_thread_function(void* arg); 56 57 class func_base 58 { 59 public: ~func_base()60 virtual ~func_base() {} 61 virtual void run() = 0; 62 }; 63 64 struct auto_func_base_ptr 65 { 66 func_base* ptr; ~auto_func_base_ptrboost::asio::detail::posix_thread::auto_func_base_ptr67 ~auto_func_base_ptr() { delete ptr; } 68 }; 69 70 template <typename Function> 71 class func 72 : public func_base 73 { 74 public: func(Function f)75 func(Function f) 76 : f_(f) 77 { 78 } 79 run()80 virtual void run() 81 { 82 f_(); 83 } 84 85 private: 86 Function f_; 87 }; 88 89 BOOST_ASIO_DECL void start_thread(func_base* arg); 90 91 ::pthread_t thread_; 92 bool joined_; 93 }; 94 95 } // namespace detail 96 } // namespace asio 97 } // namespace boost 98 99 #include <boost/asio/detail/pop_options.hpp> 100 101 #if defined(BOOST_ASIO_HEADER_ONLY) 102 # include <boost/asio/detail/impl/posix_thread.ipp> 103 #endif // defined(BOOST_ASIO_HEADER_ONLY) 104 105 #endif // defined(BOOST_ASIO_HAS_PTHREADS) 106 107 #endif // BOOST_ASIO_DETAIL_POSIX_THREAD_HPP 108