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1 | // |
2 | // detail/posix_thread.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
5 | // Copyright (c) 2003-2016 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> | |
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: | |
60 | virtual ~func_base() {} | |
61 | virtual void run() = 0; | |
62 | }; | |
63 | ||
64 | struct auto_func_base_ptr | |
65 | { | |
66 | func_base* ptr; | |
67 | ~auto_func_base_ptr() { delete ptr; } | |
68 | }; | |
69 | ||
70 | template <typename Function> | |
71 | class func | |
72 | : public func_base | |
73 | { | |
74 | public: | |
75 | func(Function f) | |
76 | : f_(f) | |
77 | { | |
78 | } | |
79 | ||
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 |