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author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2019-10-07 04:52:50 +0200 |
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committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2019-10-07 04:52:50 +0200 |
commit | 0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d (patch) | |
tree | a71d934d8151dd43e7c16555fef17fd749c5da70 /lib/asio/detail/impl/select_reactor.ipp | |
parent | 558d74bffd9f069955af52c0b308a1d6169bcff0 (diff) | |
parent | 0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff) | |
download | dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.tar.gz dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.tar.bz2 dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.zip |
Merge lime output into next branch
Diffstat (limited to 'lib/asio/detail/impl/select_reactor.ipp')
-rw-r--r-- | lib/asio/detail/impl/select_reactor.ipp | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/lib/asio/detail/impl/select_reactor.ipp b/lib/asio/detail/impl/select_reactor.ipp deleted file mode 100644 index 262bc69..0000000 --- a/lib/asio/detail/impl/select_reactor.ipp +++ /dev/null @@ -1,333 +0,0 @@ -// -// detail/impl/select_reactor.ipp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 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 ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP -#define ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" - -#if defined(ASIO_HAS_IOCP) \ - || (!defined(ASIO_HAS_DEV_POLL) \ - && !defined(ASIO_HAS_EPOLL) \ - && !defined(ASIO_HAS_KQUEUE) \ - && !defined(ASIO_WINDOWS_RUNTIME)) - -#include "asio/detail/fd_set_adapter.hpp" -#include "asio/detail/select_reactor.hpp" -#include "asio/detail/signal_blocker.hpp" -#include "asio/detail/socket_ops.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -#if defined(ASIO_HAS_IOCP) -class select_reactor::thread_function -{ -public: - explicit thread_function(select_reactor* r) - : this_(r) - { - } - - void operator()() - { - this_->run_thread(); - } - -private: - select_reactor* this_; -}; -#endif // defined(ASIO_HAS_IOCP) - -select_reactor::select_reactor(asio::execution_context& ctx) - : execution_context_service_base<select_reactor>(ctx), - scheduler_(use_service<scheduler_type>(ctx)), - mutex_(), - interrupter_(), -#if defined(ASIO_HAS_IOCP) - stop_thread_(false), - thread_(0), -#endif // defined(ASIO_HAS_IOCP) - shutdown_(false) -{ -#if defined(ASIO_HAS_IOCP) - asio::detail::signal_blocker sb; - thread_ = new asio::detail::thread(thread_function(this)); -#endif // defined(ASIO_HAS_IOCP) -} - -select_reactor::~select_reactor() -{ - shutdown(); -} - -void select_reactor::shutdown() -{ - asio::detail::mutex::scoped_lock lock(mutex_); - shutdown_ = true; -#if defined(ASIO_HAS_IOCP) - stop_thread_ = true; -#endif // defined(ASIO_HAS_IOCP) - lock.unlock(); - -#if defined(ASIO_HAS_IOCP) - if (thread_) - { - interrupter_.interrupt(); - thread_->join(); - delete thread_; - thread_ = 0; - } -#endif // defined(ASIO_HAS_IOCP) - - op_queue<operation> ops; - - for (int i = 0; i < max_ops; ++i) - op_queue_[i].get_all_operations(ops); - - timer_queues_.get_all_timers(ops); - - scheduler_.abandon_operations(ops); -} - -void select_reactor::notify_fork( - asio::execution_context::fork_event fork_ev) -{ - if (fork_ev == asio::execution_context::fork_child) - interrupter_.recreate(); -} - -void select_reactor::init_task() -{ - scheduler_.init_task(); -} - -int select_reactor::register_descriptor(socket_type, - select_reactor::per_descriptor_data&) -{ - return 0; -} - -int select_reactor::register_internal_descriptor( - int op_type, socket_type descriptor, - select_reactor::per_descriptor_data&, reactor_op* op) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - - op_queue_[op_type].enqueue_operation(descriptor, op); - interrupter_.interrupt(); - - return 0; -} - -void select_reactor::move_descriptor(socket_type, - select_reactor::per_descriptor_data&, - select_reactor::per_descriptor_data&) -{ -} - -void select_reactor::start_op(int op_type, socket_type descriptor, - select_reactor::per_descriptor_data&, reactor_op* op, - bool is_continuation, bool) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - - if (shutdown_) - { - post_immediate_completion(op, is_continuation); - return; - } - - bool first = op_queue_[op_type].enqueue_operation(descriptor, op); - scheduler_.work_started(); - if (first) - interrupter_.interrupt(); -} - -void select_reactor::cancel_ops(socket_type descriptor, - select_reactor::per_descriptor_data&) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - cancel_ops_unlocked(descriptor, asio::error::operation_aborted); -} - -void select_reactor::deregister_descriptor(socket_type descriptor, - select_reactor::per_descriptor_data&, bool) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - cancel_ops_unlocked(descriptor, asio::error::operation_aborted); -} - -void select_reactor::deregister_internal_descriptor( - socket_type descriptor, select_reactor::per_descriptor_data&) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - op_queue<operation> ops; - for (int i = 0; i < max_ops; ++i) - op_queue_[i].cancel_operations(descriptor, ops); -} - -void select_reactor::cleanup_descriptor_data( - select_reactor::per_descriptor_data&) -{ -} - -void select_reactor::run(long usec, op_queue<operation>& ops) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - -#if defined(ASIO_HAS_IOCP) - // Check if the thread is supposed to stop. - if (stop_thread_) - return; -#endif // defined(ASIO_HAS_IOCP) - - // Set up the descriptor sets. - for (int i = 0; i < max_select_ops; ++i) - fd_sets_[i].reset(); - fd_sets_[read_op].set(interrupter_.read_descriptor()); - socket_type max_fd = 0; - bool have_work_to_do = !timer_queues_.all_empty(); - for (int i = 0; i < max_select_ops; ++i) - { - have_work_to_do = have_work_to_do || !op_queue_[i].empty(); - fd_sets_[i].set(op_queue_[i], ops); - if (fd_sets_[i].max_descriptor() > max_fd) - max_fd = fd_sets_[i].max_descriptor(); - } - -#if defined(ASIO_WINDOWS) || defined(__CYGWIN__) - // Connection operations on Windows use both except and write fd_sets. - have_work_to_do = have_work_to_do || !op_queue_[connect_op].empty(); - fd_sets_[write_op].set(op_queue_[connect_op], ops); - if (fd_sets_[write_op].max_descriptor() > max_fd) - max_fd = fd_sets_[write_op].max_descriptor(); - fd_sets_[except_op].set(op_queue_[connect_op], ops); - if (fd_sets_[except_op].max_descriptor() > max_fd) - max_fd = fd_sets_[except_op].max_descriptor(); -#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__) - - // We can return immediately if there's no work to do and the reactor is - // not supposed to block. - if (!usec && !have_work_to_do) - return; - - // Determine how long to block while waiting for events. - timeval tv_buf = { 0, 0 }; - timeval* tv = usec ? get_timeout(usec, tv_buf) : &tv_buf; - - lock.unlock(); - - // Block on the select call until descriptors become ready. - asio::error_code ec; - int retval = socket_ops::select(static_cast<int>(max_fd + 1), - fd_sets_[read_op], fd_sets_[write_op], fd_sets_[except_op], tv, ec); - - // Reset the interrupter. - if (retval > 0 && fd_sets_[read_op].is_set(interrupter_.read_descriptor())) - { - interrupter_.reset(); - --retval; - } - - lock.lock(); - - // Dispatch all ready operations. - if (retval > 0) - { -#if defined(ASIO_WINDOWS) || defined(__CYGWIN__) - // Connection operations on Windows use both except and write fd_sets. - fd_sets_[except_op].perform(op_queue_[connect_op], ops); - fd_sets_[write_op].perform(op_queue_[connect_op], ops); -#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__) - - // Exception operations must be processed first to ensure that any - // out-of-band data is read before normal data. - for (int i = max_select_ops - 1; i >= 0; --i) - fd_sets_[i].perform(op_queue_[i], ops); - } - timer_queues_.get_ready_timers(ops); -} - -void select_reactor::interrupt() -{ - interrupter_.interrupt(); -} - -#if defined(ASIO_HAS_IOCP) -void select_reactor::run_thread() -{ - asio::detail::mutex::scoped_lock lock(mutex_); - while (!stop_thread_) - { - lock.unlock(); - op_queue<operation> ops; - run(true, ops); - scheduler_.post_deferred_completions(ops); - lock.lock(); - } -} -#endif // defined(ASIO_HAS_IOCP) - -void select_reactor::do_add_timer_queue(timer_queue_base& queue) -{ - mutex::scoped_lock lock(mutex_); - timer_queues_.insert(&queue); -} - -void select_reactor::do_remove_timer_queue(timer_queue_base& queue) -{ - mutex::scoped_lock lock(mutex_); - timer_queues_.erase(&queue); -} - -timeval* select_reactor::get_timeout(long usec, timeval& tv) -{ - // By default we will wait no longer than 5 minutes. This will ensure that - // any changes to the system clock are detected after no longer than this. - const long max_usec = 5 * 60 * 1000 * 1000; - usec = timer_queues_.wait_duration_usec( - (usec < 0 || max_usec < usec) ? max_usec : usec); - tv.tv_sec = usec / 1000000; - tv.tv_usec = usec % 1000000; - return &tv; -} - -void select_reactor::cancel_ops_unlocked(socket_type descriptor, - const asio::error_code& ec) -{ - bool need_interrupt = false; - op_queue<operation> ops; - for (int i = 0; i < max_ops; ++i) - need_interrupt = op_queue_[i].cancel_operations( - descriptor, ops, ec) || need_interrupt; - scheduler_.post_deferred_completions(ops); - if (need_interrupt) - interrupter_.interrupt(); -} - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // defined(ASIO_HAS_IOCP) - // || (!defined(ASIO_HAS_DEV_POLL) - // && !defined(ASIO_HAS_EPOLL) - // && !defined(ASIO_HAS_KQUEUE)) - // && !defined(ASIO_WINDOWS_RUNTIME)) - -#endif // ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP |