RESTinio

asio_timer_manager.hpp
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1/*
2 restinio
3*/
4
9#pragma once
10
11#include <memory>
12#include <chrono>
13
14#include <restinio/asio_include.hpp>
15
16#include <restinio/utils/suppress_exceptions.hpp>
17
18#include <restinio/timer_common.hpp>
19#include <restinio/compiler_features.hpp>
20
21 namespace restinio
22{
23
24//
25// asio_timer_manager_t
26//
27
29 class asio_timer_manager_t final
30 : public std::enable_shared_from_this< asio_timer_manager_t >
31{
32 public:
33 asio_timer_manager_t(
34 asio_ns::io_context & io_context,
35 std::chrono::steady_clock::duration check_period )
36 : m_io_context{ io_context }
37 , m_check_period{ check_period }
38 {}
39
41 class timer_guard_t final
42 {
43 public:
44 timer_guard_t(
45 asio_ns::io_context & io_context,
46 std::chrono::steady_clock::duration check_period ) noexcept
47 : m_operation_timer{ io_context }
48 , m_check_period{ check_period }
49 {}
50
52 void
53 schedule( tcp_connection_ctx_weak_handle_t weak_handle )
54 {
55 m_operation_timer.expires_after( m_check_period );
56 m_operation_timer.async_wait(
57 [ weak_handle = std::move( weak_handle ) ]( const auto & ec ){
58 if( !ec )
59 {
60 if( auto h = weak_handle.lock() )
61 {
62 h->check_timeout( h );
63 }
64 }
65 } );
66 }
67
69
73 void
74 cancel() noexcept
75 {
76 restinio::utils::suppress_exceptions_quietly(
77 [this]{ m_operation_timer.cancel(); } );
78 }
79
80 private:
81 asio_ns::steady_timer m_operation_timer;
82 const std::chrono::steady_clock::duration m_check_period;
84 };
85
87 timer_guard_t
88 create_timer_guard() const
89 {
90 return timer_guard_t{ m_io_context, m_check_period };
91 }
92
95 void start() const noexcept {}
96 void stop() const noexcept {}
98
99 struct factory_t final
100 {
102 const std::chrono::steady_clock::duration
103 m_check_period{ std::chrono::seconds{ 1 } };
104
105 factory_t() noexcept {}
106 factory_t( std::chrono::steady_clock::duration check_period ) noexcept
107 : m_check_period{ check_period }
108 {}
109
111 auto
112 create( asio_ns::io_context & io_context ) const
113 {
114 return std::make_shared< asio_timer_manager_t >( io_context, m_check_period );
115 }
116 };
117
118 private:
120 asio_ns::io_context & m_io_context;
121
123 const std::chrono::steady_clock::duration m_check_period;
124};
125
126} /* namespace restinio */
asio_include.hpp
restinio::asio_timer_manager_t::timer_guard_t
Timer guard for async operations.
Definition: asio_timer_manager.hpp:42
restinio::asio_timer_manager_t::timer_guard_t::m_operation_timer
asio_ns::steady_timer m_operation_timer
Definition: asio_timer_manager.hpp:81
restinio::asio_timer_manager_t::timer_guard_t::timer_guard_t
timer_guard_t(asio_ns::io_context &io_context, std::chrono::steady_clock::duration check_period) noexcept
Definition: asio_timer_manager.hpp:44
restinio::asio_timer_manager_t::timer_guard_t::m_check_period
const std::chrono::steady_clock::duration m_check_period
Definition: asio_timer_manager.hpp:82
restinio::asio_timer_manager_t::timer_guard_t::cancel
void cancel() noexcept
Cancel timeout guard if any.
Definition: asio_timer_manager.hpp:74
restinio::asio_timer_manager_t::timer_guard_t::schedule
void schedule(tcp_connection_ctx_weak_handle_t weak_handle)
Schedule timeouts check invocation.
Definition: asio_timer_manager.hpp:53
restinio::asio_timer_manager_t
Timer factory implementation using asio timers.
Definition: asio_timer_manager.hpp:31
restinio::asio_timer_manager_t::asio_timer_manager_t
asio_timer_manager_t(asio_ns::io_context &io_context, std::chrono::steady_clock::duration check_period)
Definition: asio_timer_manager.hpp:33
restinio::asio_timer_manager_t::m_io_context
asio_ns::io_context & m_io_context
An instanse of io_context to work with.
Definition: asio_timer_manager.hpp:120
restinio::asio_timer_manager_t::create_timer_guard
timer_guard_t create_timer_guard() const
Create guard for connection.
Definition: asio_timer_manager.hpp:88
restinio::asio_timer_manager_t::m_check_period
const std::chrono::steady_clock::duration m_check_period
Check period for timer events.
Definition: asio_timer_manager.hpp:123
restinio::asio_timer_manager_t::stop
void stop() const noexcept
Definition: asio_timer_manager.hpp:96
restinio::asio_timer_manager_t::start
void start() const noexcept
Definition: asio_timer_manager.hpp:95
compiler_features.hpp
Detection of compiler version and absence of various features.
nonstd::optional_lite::std11::move
T & move(T &t)
Definition: optional.hpp:465
restinio::utils::suppress_exceptions_quietly
void suppress_exceptions_quietly(Lambda &&lambda) noexcept
Helper function for execution a block of code with suppression of any exceptions raised inside that b...
Definition: suppress_exceptions.hpp:133
restinio
Definition: asio_include.hpp:21
restinio::tcp_connection_ctx_weak_handle_t
std::weak_ptr< tcp_connection_ctx_base_t > tcp_connection_ctx_weak_handle_t
Alias for http connection weak handle.
Definition: tcp_connection_ctx_base.hpp:65
restinio::asio_timer_manager_t::factory_t
Definition: asio_timer_manager.hpp:100
restinio::asio_timer_manager_t::factory_t::create
auto create(asio_ns::io_context &io_context) const
Create an instance of timer manager.
Definition: asio_timer_manager.hpp:112
restinio::asio_timer_manager_t::factory_t::factory_t
factory_t(std::chrono::steady_clock::duration check_period) noexcept
Definition: asio_timer_manager.hpp:106
restinio::asio_timer_manager_t::factory_t::factory_t
factory_t() noexcept
Definition: asio_timer_manager.hpp:105
restinio::asio_timer_manager_t::factory_t::m_check_period
const std::chrono::steady_clock::duration m_check_period
Check period for timer events.
Definition: asio_timer_manager.hpp:103
suppress_exceptions.hpp
Utilities for suppressing exceptions from some code block.
timer_common.hpp
const
#define const
Definition: zconf.h:230