FM / impl

/usr/include/boost/asio/detail/impl

Name	Size	Mode	Actions
buffer_sequence_adapter.ipp	3096	0644	edit dl rm
descriptor_ops.ipp	15091	0644	edit dl rm
dev_poll_reactor.hpp	2587	0644	edit dl rm
dev_poll_reactor.ipp	13138	0644	edit dl rm
epoll_reactor.hpp	2439	0644	edit dl rm
epoll_reactor.ipp	22372	0644	edit dl rm
eventfd_select_interrupter.ipp	4598	0644	edit dl rm
handler_tracking.ipp	11782	0644	edit dl rm
kqueue_reactor.hpp	2590	0644	edit dl rm
kqueue_reactor.ipp	17045	0644	edit dl rm
null_event.ipp	1906	0644	edit dl rm
pipe_select_interrupter.ipp	3176	0644	edit dl rm
posix_event.ipp	1776	0644	edit dl rm
posix_mutex.ipp	1235	0644	edit dl rm
posix_thread.ipp	1964	0644	edit dl rm
posix_tss_ptr.ipp	1261	0644	edit dl rm
reactive_descriptor_service.ipp	6388	0644	edit dl rm
reactive_serial_port_service.ipp	4278	0644	edit dl rm
reactive_socket_service_base.ipp	8802	0644	edit dl rm
resolver_service_base.ipp	3891	0644	edit dl rm
scheduler.ipp	15892	0644	edit dl rm
select_reactor.hpp	2985	0644	edit dl rm
select_reactor.ipp	9352	0644	edit dl rm
service_registry.hpp	2652	0644	edit dl rm
service_registry.ipp	5462	0644	edit dl rm
signal_set_service.ipp	20376	0644	edit dl rm
socket_ops.ipp	113798	0644	edit dl rm
socket_select_interrupter.ipp	5858	0644	edit dl rm
strand_executor_service.hpp	11570	0644	edit dl rm
strand_executor_service.ipp	3637	0644	edit dl rm
strand_service.hpp	3574	0644	edit dl rm
strand_service.ipp	5037	0644	edit dl rm
throw_error.ipp	1268	0644	edit dl rm
timer_queue_ptime.ipp	2410	0644	edit dl rm
timer_queue_set.ipp	2317	0644	edit dl rm
winrt_ssocket_service_base.ipp	17513	0644	edit dl rm
winrt_timer_scheduler.hpp	2664	0644	edit dl rm
winrt_timer_scheduler.ipp	2962	0644	edit dl rm
winsock_init.ipp	2050	0644	edit dl rm
win_event.ipp	2068	0644	edit dl rm
win_iocp_handle_service.ipp	14394	0644	edit dl rm
win_iocp_io_context.hpp	3026	0644	edit dl rm
win_iocp_io_context.ipp	16634	0644	edit dl rm
win_iocp_serial_port_service.ipp	6021	0644	edit dl rm
win_iocp_socket_service_base.ipp	25041	0644	edit dl rm
win_mutex.ipp	2213	0644	edit dl rm
win_object_handle_service.ipp	12495	0644	edit dl rm
win_static_mutex.ipp	3636	0644	edit dl rm
win_thread.ipp	4102	0644	edit dl rm
win_tss_ptr.ipp	1448	0644	edit dl rm

Edit: /usr/include/boost/asio/detail/impl/strand_service.hpp (3574B)

//
// detail/impl/strand_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 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_IMPL_STRAND_SERVICE_HPP
#define BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <boost/asio/detail/call_stack.hpp>
#include <boost/asio/detail/completion_handler.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/memory.hpp>

#include <boost/asio/detail/push_options.hpp>

namespace boost {
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_impl_;
  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_impl_->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);
    boost_asio_handler_invoke_helpers::invoke(handler, handler);
    return;
  }

// Allocate and construct an operation to wrap the handler.
  typedef completion_handler<Handler, io_context::executor_type> op;
  typename op::ptr p = { boost::asio::detail::addressof(handler),
    op::ptr::allocate(handler), 0 };
  p.p = new (p.v) op(handler, io_context_.get_executor());

BOOST_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_, impl };
    (void)on_exit;

op::do_complete(&io_context_impl_, o, boost::system::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 =
    boost_asio_handler_cont_helpers::is_continuation(handler);

BOOST_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
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#endif // BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP

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