1 | // |
2 | // signal_set_service.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_SIGNAL_SET_SERVICE_HPP |
12 | #define BOOST_ASIO_SIGNAL_SET_SERVICE_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 | #include <boost/asio/async_result.hpp> |
20 | #include <boost/asio/detail/signal_set_service.hpp> |
21 | #include <boost/asio/error.hpp> |
22 | #include <boost/asio/io_service.hpp> |
23 | |
24 | #include <boost/asio/detail/push_options.hpp> |
25 | |
26 | namespace boost { |
27 | namespace asio { |
28 | |
29 | /// Default service implementation for a signal set. |
30 | class signal_set_service |
31 | #if defined(GENERATING_DOCUMENTATION) |
32 | : public boost::asio::io_service::service |
33 | #else |
34 | : public boost::asio::detail::service_base<signal_set_service> |
35 | #endif |
36 | { |
37 | public: |
38 | #if defined(GENERATING_DOCUMENTATION) |
39 | /// The unique service identifier. |
40 | static boost::asio::io_service::id id; |
41 | #endif |
42 | |
43 | public: |
44 | /// The type of a signal set implementation. |
45 | #if defined(GENERATING_DOCUMENTATION) |
46 | typedef implementation_defined implementation_type; |
47 | #else |
48 | typedef detail::signal_set_service::implementation_type implementation_type; |
49 | #endif |
50 | |
51 | /// Construct a new signal set service for the specified io_service. |
52 | explicit signal_set_service(boost::asio::io_service& io_service) |
53 | : boost::asio::detail::service_base<signal_set_service>(io_service), |
54 | service_impl_(io_service) |
55 | { |
56 | } |
57 | |
58 | /// Construct a new signal set implementation. |
59 | void construct(implementation_type& impl) |
60 | { |
61 | service_impl_.construct(impl); |
62 | } |
63 | |
64 | /// Destroy a signal set implementation. |
65 | void destroy(implementation_type& impl) |
66 | { |
67 | service_impl_.destroy(impl); |
68 | } |
69 | |
70 | /// Add a signal to a signal_set. |
71 | boost::system::error_code add(implementation_type& impl, |
72 | int signal_number, boost::system::error_code& ec) |
73 | { |
74 | return service_impl_.add(impl, signal_number, ec); |
75 | } |
76 | |
77 | /// Remove a signal to a signal_set. |
78 | boost::system::error_code remove(implementation_type& impl, |
79 | int signal_number, boost::system::error_code& ec) |
80 | { |
81 | return service_impl_.remove(impl, signal_number, ec); |
82 | } |
83 | |
84 | /// Remove all signals from a signal_set. |
85 | boost::system::error_code clear(implementation_type& impl, |
86 | boost::system::error_code& ec) |
87 | { |
88 | return service_impl_.clear(impl, ec); |
89 | } |
90 | |
91 | /// Cancel all operations associated with the signal set. |
92 | boost::system::error_code cancel(implementation_type& impl, |
93 | boost::system::error_code& ec) |
94 | { |
95 | return service_impl_.cancel(impl, ec); |
96 | } |
97 | |
98 | // Start an asynchronous operation to wait for a signal to be delivered. |
99 | template <typename SignalHandler> |
100 | BOOST_ASIO_INITFN_RESULT_TYPE(SignalHandler, |
101 | void (boost::system::error_code, int)) |
102 | async_wait(implementation_type& impl, |
103 | BOOST_ASIO_MOVE_ARG(SignalHandler) handler) |
104 | { |
105 | detail::async_result_init< |
106 | SignalHandler, void (boost::system::error_code, int)> init( |
107 | BOOST_ASIO_MOVE_CAST(SignalHandler)(handler)); |
108 | |
109 | service_impl_.async_wait(impl, init.handler); |
110 | |
111 | return init.result.get(); |
112 | } |
113 | |
114 | private: |
115 | // Destroy all user-defined handler objects owned by the service. |
116 | void shutdown_service() |
117 | { |
118 | service_impl_.shutdown_service(); |
119 | } |
120 | |
121 | // Perform any fork-related housekeeping. |
122 | void fork_service(boost::asio::io_service::fork_event event) |
123 | { |
124 | service_impl_.fork_service(fork_ev: event); |
125 | } |
126 | |
127 | // The platform-specific implementation. |
128 | detail::signal_set_service service_impl_; |
129 | }; |
130 | |
131 | } // namespace asio |
132 | } // namespace boost |
133 | |
134 | #include <boost/asio/detail/pop_options.hpp> |
135 | |
136 | #endif // BOOST_ASIO_SIGNAL_SET_SERVICE_HPP |
137 | |