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Diffstat (limited to 'lib/asio/detail/impl/strand_service.hpp')
-rw-r--r-- | lib/asio/detail/impl/strand_service.hpp | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/lib/asio/detail/impl/strand_service.hpp b/lib/asio/detail/impl/strand_service.hpp deleted file mode 100644 index da5b716..0000000 --- a/lib/asio/detail/impl/strand_service.hpp +++ /dev/null @@ -1,118 +0,0 @@ -// -// detail/impl/strand_service.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// 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_STRAND_SERVICE_HPP -#define ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/call_stack.hpp" -#include "asio/detail/completion_handler.hpp" -#include "asio/detail/fenced_block.hpp" -#include "asio/detail/handler_alloc_helpers.hpp" -#include "asio/detail/handler_invoke_helpers.hpp" -#include "asio/detail/memory.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -inline strand_service::strand_impl::strand_impl() - : operation(&strand_service::do_complete), - locked_(false) -{ -} - -struct strand_service::on_dispatch_exit -{ - io_context_impl* io_context_; - strand_impl* impl_; - - ~on_dispatch_exit() - { - impl_->mutex_.lock(); - impl_->ready_queue_.push(impl_->waiting_queue_); - bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty(); - impl_->mutex_.unlock(); - - if (more_handlers) - io_context_->post_immediate_completion(impl_, false); - } -}; - -template <typename Handler> -void strand_service::dispatch(strand_service::implementation_type& impl, - Handler& handler) -{ - // If we are already in the strand then the handler can run immediately. - if (call_stack<strand_impl>::contains(impl)) - { - fenced_block b(fenced_block::full); - asio_handler_invoke_helpers::invoke(handler, handler); - return; - } - - // Allocate and construct an operation to wrap the handler. - typedef completion_handler<Handler> op; - typename op::ptr p = { asio::detail::addressof(handler), - op::ptr::allocate(handler), 0 }; - p.p = new (p.v) op(handler); - - ASIO_HANDLER_CREATION((this->context(), - *p.p, "strand", impl, 0, "dispatch")); - - bool dispatch_immediately = do_dispatch(impl, p.p); - operation* o = p.p; - p.v = p.p = 0; - - if (dispatch_immediately) - { - // Indicate that this strand is executing on the current thread. - call_stack<strand_impl>::context ctx(impl); - - // Ensure the next handler, if any, is scheduled on block exit. - on_dispatch_exit on_exit = { &io_context_, impl }; - (void)on_exit; - - completion_handler<Handler>::do_complete( - &io_context_, o, asio::error_code(), 0); - } -} - -// Request the io_context to invoke the given handler and return immediately. -template <typename Handler> -void strand_service::post(strand_service::implementation_type& impl, - Handler& handler) -{ - bool is_continuation = - asio_handler_cont_helpers::is_continuation(handler); - - // Allocate and construct an operation to wrap the handler. - typedef completion_handler<Handler> op; - typename op::ptr p = { asio::detail::addressof(handler), - op::ptr::allocate(handler), 0 }; - p.p = new (p.v) op(handler); - - ASIO_HANDLER_CREATION((this->context(), - *p.p, "strand", impl, 0, "post")); - - do_post(impl, p.p, is_continuation); - p.v = p.p = 0; -} - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP |