/usr/include/boost/asio/detail/impl/reactive_descriptor_service.ipp is in libboost1.49-dev 1.49.0-3.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | //
// detail/impl/reactive_descriptor_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2012 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_REACTIVE_DESCRIPTOR_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_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_WINDOWS) && !defined(__CYGWIN__)
#include <boost/asio/error.hpp>
#include <boost/asio/detail/reactive_descriptor_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
reactive_descriptor_service::reactive_descriptor_service(
boost::asio::io_service& io_service)
: reactor_(boost::asio::use_service<reactor>(io_service))
{
reactor_.init_task();
}
void reactive_descriptor_service::shutdown_service()
{
}
void reactive_descriptor_service::construct(
reactive_descriptor_service::implementation_type& impl)
{
impl.descriptor_ = -1;
impl.state_ = 0;
}
void reactive_descriptor_service::move_construct(
reactive_descriptor_service::implementation_type& impl,
reactive_descriptor_service::implementation_type& other_impl)
{
impl.descriptor_ = other_impl.descriptor_;
other_impl.descriptor_ = -1;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
reactor_.move_descriptor(impl.descriptor_,
impl.reactor_data_, other_impl.reactor_data_);
}
void reactive_descriptor_service::move_assign(
reactive_descriptor_service::implementation_type& impl,
reactive_descriptor_service& other_service,
reactive_descriptor_service::implementation_type& other_impl)
{
destroy(impl);
impl.descriptor_ = other_impl.descriptor_;
other_impl.descriptor_ = -1;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
other_service.reactor_.move_descriptor(impl.descriptor_,
impl.reactor_data_, other_impl.reactor_data_);
}
void reactive_descriptor_service::destroy(
reactive_descriptor_service::implementation_type& impl)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close"));
reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_,
(impl.state_ & descriptor_ops::possible_dup) == 0);
}
boost::system::error_code ignored_ec;
descriptor_ops::close(impl.descriptor_, impl.state_, ignored_ec);
}
boost::system::error_code reactive_descriptor_service::assign(
reactive_descriptor_service::implementation_type& impl,
const native_handle_type& native_descriptor, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
if (int err = reactor_.register_descriptor(
native_descriptor, impl.reactor_data_))
{
ec = boost::system::error_code(err,
boost::asio::error::get_system_category());
return ec;
}
impl.descriptor_ = native_descriptor;
impl.state_ = descriptor_ops::possible_dup;
ec = boost::system::error_code();
return ec;
}
boost::system::error_code reactive_descriptor_service::close(
reactive_descriptor_service::implementation_type& impl,
boost::system::error_code& ec)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close"));
reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_,
(impl.state_ & descriptor_ops::possible_dup) == 0);
}
descriptor_ops::close(impl.descriptor_, impl.state_, ec);
// The descriptor is closed by the OS even if close() returns an error.
//
// (Actually, POSIX says the state of the descriptor is unspecified. On
// Linux the descriptor is apparently closed anyway; e.g. see
// http://lkml.org/lkml/2005/9/10/129
// We'll just have to assume that other OSes follow the same behaviour.)
construct(impl);
return ec;
}
reactive_descriptor_service::native_handle_type
reactive_descriptor_service::release(
reactive_descriptor_service::implementation_type& impl)
{
native_handle_type descriptor = impl.descriptor_;
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "release"));
reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, false);
construct(impl);
}
return descriptor;
}
boost::system::error_code reactive_descriptor_service::cancel(
reactive_descriptor_service::implementation_type& impl,
boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return ec;
}
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "cancel"));
reactor_.cancel_ops(impl.descriptor_, impl.reactor_data_);
ec = boost::system::error_code();
return ec;
}
void reactive_descriptor_service::start_op(
reactive_descriptor_service::implementation_type& impl,
int op_type, reactor_op* op, bool is_non_blocking, bool noop)
{
if (!noop)
{
if ((impl.state_ & descriptor_ops::non_blocking) ||
descriptor_ops::set_internal_non_blocking(
impl.descriptor_, impl.state_, true, op->ec_))
{
reactor_.start_op(op_type, impl.descriptor_,
impl.reactor_data_, op, is_non_blocking);
return;
}
}
reactor_.post_immediate_completion(op);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP
|