]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // |
2 | // detail/win_thread.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
92f5a8d4 | 5 | // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
7c673cae FG |
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_WIN_THREAD_HPP | |
12 | #define BOOST_ASIO_DETAIL_WIN_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_WINDOWS) \ | |
21 | && !defined(BOOST_ASIO_WINDOWS_APP) \ | |
22 | && !defined(UNDER_CE) | |
23 | ||
b32b8144 | 24 | #include <cstddef> |
7c673cae FG |
25 | #include <boost/asio/detail/noncopyable.hpp> |
26 | #include <boost/asio/detail/socket_types.hpp> | |
27 | ||
28 | #include <boost/asio/detail/push_options.hpp> | |
29 | ||
30 | namespace boost { | |
31 | namespace asio { | |
32 | namespace detail { | |
33 | ||
34 | BOOST_ASIO_DECL unsigned int __stdcall win_thread_function(void* arg); | |
35 | ||
36 | #if defined(WINVER) && (WINVER < 0x0500) | |
37 | BOOST_ASIO_DECL void __stdcall apc_function(ULONG data); | |
38 | #else | |
39 | BOOST_ASIO_DECL void __stdcall apc_function(ULONG_PTR data); | |
40 | #endif | |
41 | ||
42 | template <typename T> | |
43 | class win_thread_base | |
44 | { | |
45 | public: | |
46 | static bool terminate_threads() | |
47 | { | |
48 | return ::InterlockedExchangeAdd(&terminate_threads_, 0) != 0; | |
49 | } | |
50 | ||
51 | static void set_terminate_threads(bool b) | |
52 | { | |
53 | ::InterlockedExchange(&terminate_threads_, b ? 1 : 0); | |
54 | } | |
55 | ||
56 | private: | |
57 | static long terminate_threads_; | |
58 | }; | |
59 | ||
60 | template <typename T> | |
61 | long win_thread_base<T>::terminate_threads_ = 0; | |
62 | ||
63 | class win_thread | |
64 | : private noncopyable, | |
65 | public win_thread_base<win_thread> | |
66 | { | |
67 | public: | |
68 | // Constructor. | |
69 | template <typename Function> | |
70 | win_thread(Function f, unsigned int stack_size = 0) | |
71 | : thread_(0), | |
72 | exit_event_(0) | |
73 | { | |
74 | start_thread(new func<Function>(f), stack_size); | |
75 | } | |
76 | ||
77 | // Destructor. | |
78 | BOOST_ASIO_DECL ~win_thread(); | |
79 | ||
80 | // Wait for the thread to exit. | |
81 | BOOST_ASIO_DECL void join(); | |
82 | ||
b32b8144 FG |
83 | // Get number of CPUs. |
84 | BOOST_ASIO_DECL static std::size_t hardware_concurrency(); | |
85 | ||
7c673cae FG |
86 | private: |
87 | friend BOOST_ASIO_DECL unsigned int __stdcall win_thread_function(void* arg); | |
88 | ||
89 | #if defined(WINVER) && (WINVER < 0x0500) | |
90 | friend BOOST_ASIO_DECL void __stdcall apc_function(ULONG); | |
91 | #else | |
92 | friend BOOST_ASIO_DECL void __stdcall apc_function(ULONG_PTR); | |
93 | #endif | |
94 | ||
95 | class func_base | |
96 | { | |
97 | public: | |
98 | virtual ~func_base() {} | |
99 | virtual void run() = 0; | |
100 | ::HANDLE entry_event_; | |
101 | ::HANDLE exit_event_; | |
102 | }; | |
103 | ||
104 | struct auto_func_base_ptr | |
105 | { | |
106 | func_base* ptr; | |
107 | ~auto_func_base_ptr() { delete ptr; } | |
108 | }; | |
109 | ||
110 | template <typename Function> | |
111 | class func | |
112 | : public func_base | |
113 | { | |
114 | public: | |
115 | func(Function f) | |
116 | : f_(f) | |
117 | { | |
118 | } | |
119 | ||
120 | virtual void run() | |
121 | { | |
122 | f_(); | |
123 | } | |
124 | ||
125 | private: | |
126 | Function f_; | |
127 | }; | |
128 | ||
129 | BOOST_ASIO_DECL void start_thread(func_base* arg, unsigned int stack_size); | |
130 | ||
131 | ::HANDLE thread_; | |
132 | ::HANDLE exit_event_; | |
133 | }; | |
134 | ||
135 | } // namespace detail | |
136 | } // namespace asio | |
137 | } // namespace boost | |
138 | ||
139 | #include <boost/asio/detail/pop_options.hpp> | |
140 | ||
141 | #if defined(BOOST_ASIO_HEADER_ONLY) | |
142 | # include <boost/asio/detail/impl/win_thread.ipp> | |
143 | #endif // defined(BOOST_ASIO_HEADER_ONLY) | |
144 | ||
145 | #endif // defined(BOOST_ASIO_WINDOWS) | |
146 | // && !defined(BOOST_ASIO_WINDOWS_APP) | |
147 | // && !defined(UNDER_CE) | |
148 | ||
149 | #endif // BOOST_ASIO_DETAIL_WIN_THREAD_HPP |