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Diffstat (limited to 'src/third_party/boost-1.56.0/boost/asio/detail/epoll_reactor.hpp')
| -rw-r--r-- | src/third_party/boost-1.56.0/boost/asio/detail/epoll_reactor.hpp | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/src/third_party/boost-1.56.0/boost/asio/detail/epoll_reactor.hpp b/src/third_party/boost-1.56.0/boost/asio/detail/epoll_reactor.hpp deleted file mode 100644 index 976da8a9ef2..00000000000 --- a/src/third_party/boost-1.56.0/boost/asio/detail/epoll_reactor.hpp +++ /dev/null @@ -1,244 +0,0 @@ -// -// detail/epoll_reactor.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2014 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_DETAIL_EPOLL_REACTOR_HPP -#define BOOST_ASIO_DETAIL_EPOLL_REACTOR_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include <boost/asio/detail/config.hpp> - -#if defined(BOOST_ASIO_HAS_EPOLL) - -#include <boost/asio/io_service.hpp> -#include <boost/asio/detail/atomic_count.hpp> -#include <boost/asio/detail/limits.hpp> -#include <boost/asio/detail/mutex.hpp> -#include <boost/asio/detail/object_pool.hpp> -#include <boost/asio/detail/op_queue.hpp> -#include <boost/asio/detail/reactor_op.hpp> -#include <boost/asio/detail/select_interrupter.hpp> -#include <boost/asio/detail/socket_types.hpp> -#include <boost/asio/detail/timer_queue_base.hpp> -#include <boost/asio/detail/timer_queue_set.hpp> -#include <boost/asio/detail/wait_op.hpp> - -#include <boost/asio/detail/push_options.hpp> - -namespace boost { -namespace asio { -namespace detail { - -class epoll_reactor - : public boost::asio::detail::service_base<epoll_reactor> -{ -public: - enum op_types { read_op = 0, write_op = 1, - connect_op = 1, except_op = 2, max_ops = 3 }; - - // Per-descriptor queues. - class descriptor_state : operation - { - friend class epoll_reactor; - friend class object_pool_access; - - descriptor_state* next_; - descriptor_state* prev_; - - mutex mutex_; - epoll_reactor* reactor_; - int descriptor_; - uint32_t registered_events_; - op_queue<reactor_op> op_queue_[max_ops]; - bool shutdown_; - - BOOST_ASIO_DECL descriptor_state(); - void set_ready_events(uint32_t events) { task_result_ = events; } - BOOST_ASIO_DECL operation* perform_io(uint32_t events); - BOOST_ASIO_DECL static void do_complete( - io_service_impl* owner, operation* base, - const boost::system::error_code& ec, std::size_t bytes_transferred); - }; - - // Per-descriptor data. - typedef descriptor_state* per_descriptor_data; - - // Constructor. - BOOST_ASIO_DECL epoll_reactor(boost::asio::io_service& io_service); - - // Destructor. - BOOST_ASIO_DECL ~epoll_reactor(); - - // Destroy all user-defined handler objects owned by the service. - BOOST_ASIO_DECL void shutdown_service(); - - // Recreate internal descriptors following a fork. - BOOST_ASIO_DECL void fork_service( - boost::asio::io_service::fork_event fork_ev); - - // Initialise the task. - BOOST_ASIO_DECL void init_task(); - - // Register a socket with the reactor. Returns 0 on success, system error - // code on failure. - BOOST_ASIO_DECL int register_descriptor(socket_type descriptor, - per_descriptor_data& descriptor_data); - - // Register a descriptor with an associated single operation. Returns 0 on - // success, system error code on failure. - BOOST_ASIO_DECL int register_internal_descriptor( - int op_type, socket_type descriptor, - per_descriptor_data& descriptor_data, reactor_op* op); - - // Move descriptor registration from one descriptor_data object to another. - BOOST_ASIO_DECL void move_descriptor(socket_type descriptor, - per_descriptor_data& target_descriptor_data, - per_descriptor_data& source_descriptor_data); - - // Post a reactor operation for immediate completion. - void post_immediate_completion(reactor_op* op, bool is_continuation) - { - io_service_.post_immediate_completion(op, is_continuation); - } - - // Start a new operation. The reactor operation will be performed when the - // given descriptor is flagged as ready, or an error has occurred. - BOOST_ASIO_DECL void start_op(int op_type, socket_type descriptor, - per_descriptor_data& descriptor_data, reactor_op* op, - bool is_continuation, bool allow_speculative); - - // Cancel all operations associated with the given descriptor. The - // handlers associated with the descriptor will be invoked with the - // operation_aborted error. - BOOST_ASIO_DECL void cancel_ops(socket_type descriptor, - per_descriptor_data& descriptor_data); - - // Cancel any operations that are running against the descriptor and remove - // its registration from the reactor. - BOOST_ASIO_DECL void deregister_descriptor(socket_type descriptor, - per_descriptor_data& descriptor_data, bool closing); - - // Remote the descriptor's registration from the reactor. - BOOST_ASIO_DECL void deregister_internal_descriptor( - socket_type descriptor, per_descriptor_data& descriptor_data); - - // Add a new timer queue to the reactor. - template <typename Time_Traits> - void add_timer_queue(timer_queue<Time_Traits>& timer_queue); - - // Remove a timer queue from the reactor. - template <typename Time_Traits> - void remove_timer_queue(timer_queue<Time_Traits>& timer_queue); - - // Schedule a new operation in the given timer queue to expire at the - // specified absolute time. - template <typename Time_Traits> - void schedule_timer(timer_queue<Time_Traits>& queue, - const typename Time_Traits::time_type& time, - typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op); - - // Cancel the timer operations associated with the given token. Returns the - // number of operations that have been posted or dispatched. - template <typename Time_Traits> - std::size_t cancel_timer(timer_queue<Time_Traits>& queue, - typename timer_queue<Time_Traits>::per_timer_data& timer, - std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)()); - - // Run epoll once until interrupted or events are ready to be dispatched. - BOOST_ASIO_DECL void run(bool block, op_queue<operation>& ops); - - // Interrupt the select loop. - BOOST_ASIO_DECL void interrupt(); - -private: - // The hint to pass to epoll_create to size its data structures. - enum { epoll_size = 20000 }; - - // Create the epoll file descriptor. Throws an exception if the descriptor - // cannot be created. - BOOST_ASIO_DECL static int do_epoll_create(); - - // Create the timerfd file descriptor. Does not throw. - BOOST_ASIO_DECL static int do_timerfd_create(); - - // Allocate a new descriptor state object. - BOOST_ASIO_DECL descriptor_state* allocate_descriptor_state(); - - // Free an existing descriptor state object. - BOOST_ASIO_DECL void free_descriptor_state(descriptor_state* s); - - // Helper function to add a new timer queue. - BOOST_ASIO_DECL void do_add_timer_queue(timer_queue_base& queue); - - // Helper function to remove a timer queue. - BOOST_ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue); - - // Called to recalculate and update the timeout. - BOOST_ASIO_DECL void update_timeout(); - - // Get the timeout value for the epoll_wait call. The timeout value is - // returned as a number of milliseconds. A return value of -1 indicates - // that epoll_wait should block indefinitely. - BOOST_ASIO_DECL int get_timeout(); - -#if defined(BOOST_ASIO_HAS_TIMERFD) - // Get the timeout value for the timer descriptor. The return value is the - // flag argument to be used when calling timerfd_settime. - BOOST_ASIO_DECL int get_timeout(itimerspec& ts); -#endif // defined(BOOST_ASIO_HAS_TIMERFD) - - // The io_service implementation used to post completions. - io_service_impl& io_service_; - - // Mutex to protect access to internal data. - mutex mutex_; - - // The interrupter is used to break a blocking epoll_wait call. - select_interrupter interrupter_; - - // The epoll file descriptor. - int epoll_fd_; - - // The timer file descriptor. - int timer_fd_; - - // The timer queues. - timer_queue_set timer_queues_; - - // Whether the service has been shut down. - bool shutdown_; - - // Mutex to protect access to the registered descriptors. - mutex registered_descriptors_mutex_; - - // Keep track of all registered descriptors. - object_pool<descriptor_state> registered_descriptors_; - - // Helper class to do post-perform_io cleanup. - struct perform_io_cleanup_on_block_exit; - friend struct perform_io_cleanup_on_block_exit; -}; - -} // namespace detail -} // namespace asio -} // namespace boost - -#include <boost/asio/detail/pop_options.hpp> - -#include <boost/asio/detail/impl/epoll_reactor.hpp> -#if defined(BOOST_ASIO_HEADER_ONLY) -# include <boost/asio/detail/impl/epoll_reactor.ipp> -#endif // defined(BOOST_ASIO_HEADER_ONLY) - -#endif // defined(BOOST_ASIO_HAS_EPOLL) - -#endif // BOOST_ASIO_DETAIL_EPOLL_REACTOR_HPP |