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b32b8144 FG |
1 | // |
2 | // impl/system_context.ipp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
92f5a8d4 | 5 | // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
b32b8144 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_IMPL_SYSTEM_CONTEXT_IPP | |
12 | #define BOOST_ASIO_IMPL_SYSTEM_CONTEXT_IPP | |
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/system_context.hpp> | |
20 | ||
21 | #include <boost/asio/detail/push_options.hpp> | |
22 | ||
23 | namespace boost { | |
24 | namespace asio { | |
25 | ||
26 | struct system_context::thread_function | |
27 | { | |
28 | detail::scheduler* scheduler_; | |
29 | ||
30 | void operator()() | |
31 | { | |
32 | boost::system::error_code ec; | |
33 | scheduler_->run(ec); | |
34 | } | |
35 | }; | |
36 | ||
37 | system_context::system_context() | |
92f5a8d4 | 38 | : scheduler_(add_scheduler(new detail::scheduler(*this, 0, false))) |
b32b8144 FG |
39 | { |
40 | scheduler_.work_started(); | |
41 | ||
42 | thread_function f = { &scheduler_ }; | |
43 | std::size_t num_threads = detail::thread::hardware_concurrency() * 2; | |
44 | threads_.create_threads(f, num_threads ? num_threads : 2); | |
45 | } | |
46 | ||
47 | system_context::~system_context() | |
48 | { | |
49 | scheduler_.work_finished(); | |
50 | scheduler_.stop(); | |
51 | threads_.join(); | |
52 | } | |
53 | ||
54 | void system_context::stop() | |
55 | { | |
56 | scheduler_.stop(); | |
57 | } | |
58 | ||
59 | bool system_context::stopped() const BOOST_ASIO_NOEXCEPT | |
60 | { | |
61 | return scheduler_.stopped(); | |
62 | } | |
63 | ||
64 | void system_context::join() | |
65 | { | |
66 | scheduler_.work_finished(); | |
67 | threads_.join(); | |
68 | } | |
69 | ||
92f5a8d4 TL |
70 | detail::scheduler& system_context::add_scheduler(detail::scheduler* s) |
71 | { | |
72 | detail::scoped_ptr<detail::scheduler> scoped_impl(s); | |
73 | boost::asio::add_service<detail::scheduler>(*this, scoped_impl.get()); | |
74 | return *scoped_impl.release(); | |
75 | } | |
76 | ||
b32b8144 FG |
77 | } // namespace asio |
78 | } // namespace boost | |
79 | ||
80 | #include <boost/asio/detail/pop_options.hpp> | |
81 | ||
82 | #endif // BOOST_ASIO_IMPL_SYSTEM_CONTEXT_IPP |