ceph/src/boost/boost/asio/detail/impl/epoll_reactor.hpp

   1 //
   2 // detail/impl/epoll_reactor.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2022 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_DETAIL_IMPL_EPOLL_REACTOR_HPP
  12 #define BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #if defined(BOOST_ASIO_HAS_EPOLL)
  19
  20 #include <boost/asio/detail/scheduler.hpp>
  21
  22 #include <boost/asio/detail/push_options.hpp>
  23
  24 namespace boost {
  25 namespace asio {
  26 namespace detail {
  27
  28 inline void epoll_reactor::post_immediate_completion(
  29     operation* op, bool is_continuation)
  30 {
  31   scheduler_.post_immediate_completion(op, is_continuation);
  32 }
  33
  34 template <typename Time_Traits>
  35 void epoll_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
  36 {
  37   do_add_timer_queue(queue);
  38 }
  39
  40 template <typename Time_Traits>
  41 void epoll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
  42 {
  43   do_remove_timer_queue(queue);
  44 }
  45
  46 template <typename Time_Traits>
  47 void epoll_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
  48     const typename Time_Traits::time_type& time,
  49     typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
  50 {
  51   mutex::scoped_lock lock(mutex_);
  52
  53   if (shutdown_)
  54   {
  55     scheduler_.post_immediate_completion(op, false);
  56     return;
  57   }
  58
  59   bool earliest = queue.enqueue_timer(time, timer, op);
  60   scheduler_.work_started();
  61   if (earliest)
  62     update_timeout();
  63 }
  64
  65 template <typename Time_Traits>
  66 std::size_t epoll_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
  67     typename timer_queue<Time_Traits>::per_timer_data& timer,
  68     std::size_t max_cancelled)
  69 {
  70   mutex::scoped_lock lock(mutex_);
  71   op_queue<operation> ops;
  72   std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
  73   lock.unlock();
  74   scheduler_.post_deferred_completions(ops);
  75   return n;
  76 }
  77
  78 template <typename Time_Traits>
  79 void epoll_reactor::cancel_timer_by_key(timer_queue<Time_Traits>& queue,
  80     typename timer_queue<Time_Traits>::per_timer_data* timer,
  81     void* cancellation_key)
  82 {
  83   mutex::scoped_lock lock(mutex_);
  84   op_queue<operation> ops;
  85   queue.cancel_timer_by_key(timer, ops, cancellation_key);
  86   lock.unlock();
  87   scheduler_.post_deferred_completions(ops);
  88 }
  89
  90 template <typename Time_Traits>
  91 void epoll_reactor::move_timer(timer_queue<Time_Traits>& queue,
  92     typename timer_queue<Time_Traits>::per_timer_data& target,
  93     typename timer_queue<Time_Traits>::per_timer_data& source)
  94 {
  95   mutex::scoped_lock lock(mutex_);
  96   op_queue<operation> ops;
  97   queue.cancel_timer(target, ops);
  98   queue.move_timer(target, source);
  99   lock.unlock();
 100   scheduler_.post_deferred_completions(ops);
 101 }
 102
 103 } // namespace detail
 104 } // namespace asio
 105 } // namespace boost
 106
 107 #include <boost/asio/detail/pop_options.hpp>
 108
 109 #endif // defined(BOOST_ASIO_HAS_EPOLL)
 110
 111 #endif // BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP