63e88f80
 Hu Chunming
提交三方库
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
//
// system_context.hpp
// ~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_SYSTEM_CONTEXT_HPP
#define BOOST_ASIO_SYSTEM_CONTEXT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/scheduler.hpp>
#include <boost/asio/detail/thread_group.hpp>
#include <boost/asio/execution.hpp>
#include <boost/asio/execution_context.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
template <typename Blocking, typename Relationship, typename Allocator>
class basic_system_executor;
/// The executor context for the system executor.
class system_context : public execution_context
{
public:
/// The executor type associated with the context.
typedef basic_system_executor<
execution::blocking_t::possibly_t,
execution::relationship_t::fork_t,
std::allocator<void>
> executor_type;
/// Destructor shuts down all threads in the system thread pool.
BOOST_ASIO_DECL ~system_context();
/// Obtain an executor for the context.
executor_type get_executor() BOOST_ASIO_NOEXCEPT;
/// Signal all threads in the system thread pool to stop.
BOOST_ASIO_DECL void stop();
/// Determine whether the system thread pool has been stopped.
BOOST_ASIO_DECL bool stopped() const BOOST_ASIO_NOEXCEPT;
/// Join all threads in the system thread pool.
BOOST_ASIO_DECL void join();
#if defined(GENERATING_DOCUMENTATION)
private:
#endif // defined(GENERATING_DOCUMENTATION)
// Constructor creates all threads in the system thread pool.
BOOST_ASIO_DECL system_context();
private:
template <typename, typename, typename> friend class basic_system_executor;
struct thread_function;
// Helper function to create the underlying scheduler.
BOOST_ASIO_DECL detail::scheduler& add_scheduler(detail::scheduler* s);
// The underlying scheduler.
detail::scheduler& scheduler_;
// The threads in the system thread pool.
detail::thread_group threads_;
// The number of threads in the pool.
std::size_t num_threads_;
};
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/impl/system_context.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/impl/system_context.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // BOOST_ASIO_SYSTEM_CONTEXT_HPP
|
