diff DEPENDENCIES/generic/include/boost/asio/detail/impl/select_reactor.ipp @ 16:2665513ce2d3

Add boost headers

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/asio/detail/impl/select_reactor.ipp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,317 @@
+//
+// detail/impl/select_reactor.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2013 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_SELECT_REACTOR_IPP
+#define BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
+
+#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_IOCP) \
+  || (!defined(BOOST_ASIO_HAS_DEV_POLL) \
+      && !defined(BOOST_ASIO_HAS_EPOLL) \
+      && !defined(BOOST_ASIO_HAS_KQUEUE) \
+      && !defined(BOOST_ASIO_WINDOWS_RUNTIME))
+
+#include <boost/asio/detail/bind_handler.hpp>
+#include <boost/asio/detail/fd_set_adapter.hpp>
+#include <boost/asio/detail/select_reactor.hpp>
+#include <boost/asio/detail/signal_blocker.hpp>
+#include <boost/asio/detail/socket_ops.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+select_reactor::select_reactor(boost::asio::io_service& io_service)
+  : boost::asio::detail::service_base<select_reactor>(io_service),
+    io_service_(use_service<io_service_impl>(io_service)),
+    mutex_(),
+    interrupter_(),
+#if defined(BOOST_ASIO_HAS_IOCP)
+    stop_thread_(false),
+    thread_(0),
+#endif // defined(BOOST_ASIO_HAS_IOCP)
+    shutdown_(false)
+{
+#if defined(BOOST_ASIO_HAS_IOCP)
+  boost::asio::detail::signal_blocker sb;
+  thread_ = new boost::asio::detail::thread(
+      bind_handler(&select_reactor::call_run_thread, this));
+#endif // defined(BOOST_ASIO_HAS_IOCP)
+}
+
+select_reactor::~select_reactor()
+{
+  shutdown_service();
+}
+
+void select_reactor::shutdown_service()
+{
+  boost::asio::detail::mutex::scoped_lock lock(mutex_);
+  shutdown_ = true;
+#if defined(BOOST_ASIO_HAS_IOCP)
+  stop_thread_ = true;
+#endif // defined(BOOST_ASIO_HAS_IOCP)
+  lock.unlock();
+
+#if defined(BOOST_ASIO_HAS_IOCP)
+  if (thread_)
+  {
+    interrupter_.interrupt();
+    thread_->join();
+    delete thread_;
+    thread_ = 0;
+  }
+#endif // defined(BOOST_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);
+
+  io_service_.abandon_operations(ops);
+}
+
+void select_reactor::fork_service(boost::asio::io_service::fork_event fork_ev)
+{
+  if (fork_ev == boost::asio::io_service::fork_child)
+    interrupter_.recreate();
+}
+
+void select_reactor::init_task()
+{
+  io_service_.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)
+{
+  boost::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)
+{
+  boost::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);
+  io_service_.work_started();
+  if (first)
+    interrupter_.interrupt();
+}
+
+void select_reactor::cancel_ops(socket_type descriptor,
+    select_reactor::per_descriptor_data&)
+{
+  boost::asio::detail::mutex::scoped_lock lock(mutex_);
+  cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted);
+}
+
+void select_reactor::deregister_descriptor(socket_type descriptor,
+    select_reactor::per_descriptor_data&, bool)
+{
+  boost::asio::detail::mutex::scoped_lock lock(mutex_);
+  cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted);
+}
+
+void select_reactor::deregister_internal_descriptor(
+    socket_type descriptor, select_reactor::per_descriptor_data&)
+{
+  boost::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::run(bool block, op_queue<operation>& ops)
+{
+  boost::asio::detail::mutex::scoped_lock lock(mutex_);
+
+#if defined(BOOST_ASIO_HAS_IOCP)
+  // Check if the thread is supposed to stop.
+  if (stop_thread_)
+    return;
+#endif // defined(BOOST_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();
+    op_queue_[i].get_descriptors(fd_sets_[i], ops);
+    if (fd_sets_[i].max_descriptor() > max_fd)
+      max_fd = fd_sets_[i].max_descriptor();
+  }
+
+#if defined(BOOST_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();
+  op_queue_[connect_op].get_descriptors(fd_sets_[write_op], ops);
+  if (fd_sets_[write_op].max_descriptor() > max_fd)
+    max_fd = fd_sets_[write_op].max_descriptor();
+  op_queue_[connect_op].get_descriptors(fd_sets_[except_op], ops);
+  if (fd_sets_[except_op].max_descriptor() > max_fd)
+    max_fd = fd_sets_[except_op].max_descriptor();
+#endif // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
+
+  // We can return immediately if there's no work to do and the reactor is
+  // not supposed to block.
+  if (!block && !have_work_to_do)
+    return;
+
+  // Determine how long to block while waiting for events.
+  timeval tv_buf = { 0, 0 };
+  timeval* tv = block ? get_timeout(tv_buf) : &tv_buf;
+
+  lock.unlock();
+
+  // Block on the select call until descriptors become ready.
+  boost::system::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(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
+    // Connection operations on Windows use both except and write fd_sets.
+    op_queue_[connect_op].perform_operations_for_descriptors(
+        fd_sets_[except_op], ops);
+    op_queue_[connect_op].perform_operations_for_descriptors(
+        fd_sets_[write_op], ops);
+#endif // defined(BOOST_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)
+      op_queue_[i].perform_operations_for_descriptors(fd_sets_[i], ops);
+  }
+  timer_queues_.get_ready_timers(ops);
+}
+
+void select_reactor::interrupt()
+{
+  interrupter_.interrupt();
+}
+
+#if defined(BOOST_ASIO_HAS_IOCP)
+void select_reactor::run_thread()
+{
+  boost::asio::detail::mutex::scoped_lock lock(mutex_);
+  while (!stop_thread_)
+  {
+    lock.unlock();
+    op_queue<operation> ops;
+    run(true, ops);
+    io_service_.post_deferred_completions(ops);
+    lock.lock();
+  }
+}
+
+void select_reactor::call_run_thread(select_reactor* reactor)
+{
+  reactor->run_thread();
+}
+#endif // defined(BOOST_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(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.
+  long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
+  tv.tv_sec = usec / 1000000;
+  tv.tv_usec = usec % 1000000;
+  return &tv;
+}
+
+void select_reactor::cancel_ops_unlocked(socket_type descriptor,
+    const boost::system::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;
+  io_service_.post_deferred_completions(ops);
+  if (need_interrupt)
+    interrupter_.interrupt();
+}
+
+} // namespace detail
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // defined(BOOST_ASIO_HAS_IOCP)
+       //   || (!defined(BOOST_ASIO_HAS_DEV_POLL)
+       //       && !defined(BOOST_ASIO_HAS_EPOLL)
+       //       && !defined(BOOST_ASIO_HAS_KQUEUE))
+       //       && !defined(BOOST_ASIO_WINDOWS_RUNTIME))
+
+#endif // BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP