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Posted to common-commits@hadoop.apache.org by wh...@apache.org on 2015/07/11 02:09:58 UTC
[39/46] hadoop git commit: HDFS-8724. Import third_party libraries
into the repository. Contributed by Haohui Mai.
http://git-wip-us.apache.org/repos/asf/hadoop/blob/5b488f3e/hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_acceptor.hpp
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diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_acceptor.hpp b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_acceptor.hpp
new file mode 100644
index 0000000..f69f483
--- /dev/null
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_acceptor.hpp
@@ -0,0 +1,1136 @@
+//
+// basic_socket_acceptor.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2014 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_BASIC_SOCKET_ACCEPTOR_HPP
+#define ASIO_BASIC_SOCKET_ACCEPTOR_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/basic_io_object.hpp"
+#include "asio/basic_socket.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/type_traits.hpp"
+#include "asio/error.hpp"
+#include "asio/socket_acceptor_service.hpp"
+#include "asio/socket_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Provides the ability to accept new connections.
+/**
+ * The basic_socket_acceptor class template is used for accepting new socket
+ * connections.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Example
+ * Opening a socket acceptor with the SO_REUSEADDR option enabled:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * asio::ip::tcp::endpoint endpoint(asio::ip::tcp::v4(), port);
+ * acceptor.open(endpoint.protocol());
+ * acceptor.set_option(asio::ip::tcp::acceptor::reuse_address(true));
+ * acceptor.bind(endpoint);
+ * acceptor.listen();
+ * @endcode
+ */
+template <typename Protocol,
+ typename SocketAcceptorService = socket_acceptor_service<Protocol> >
+class basic_socket_acceptor
+ : public basic_io_object<SocketAcceptorService>,
+ public socket_base
+{
+public:
+ /// (Deprecated: Use native_handle_type.) The native representation of an
+ /// acceptor.
+ typedef typename SocketAcceptorService::native_handle_type native_type;
+
+ /// The native representation of an acceptor.
+ typedef typename SocketAcceptorService::native_handle_type native_handle_type;
+
+ /// The protocol type.
+ typedef Protocol protocol_type;
+
+ /// The endpoint type.
+ typedef typename Protocol::endpoint endpoint_type;
+
+ /// Construct an acceptor without opening it.
+ /**
+ * This constructor creates an acceptor without opening it to listen for new
+ * connections. The open() function must be called before the acceptor can
+ * accept new socket connections.
+ *
+ * @param io_service The io_service object that the acceptor will use to
+ * dispatch handlers for any asynchronous operations performed on the
+ * acceptor.
+ */
+ explicit basic_socket_acceptor(asio::io_service& io_service)
+ : basic_io_object<SocketAcceptorService>(io_service)
+ {
+ }
+
+ /// Construct an open acceptor.
+ /**
+ * This constructor creates an acceptor and automatically opens it.
+ *
+ * @param io_service The io_service object that the acceptor will use to
+ * dispatch handlers for any asynchronous operations performed on the
+ * acceptor.
+ *
+ * @param protocol An object specifying protocol parameters to be used.
+ *
+ * @throws asio::system_error Thrown on failure.
+ */
+ basic_socket_acceptor(asio::io_service& io_service,
+ const protocol_type& protocol)
+ : basic_io_object<SocketAcceptorService>(io_service)
+ {
+ asio::error_code ec;
+ this->get_service().open(this->get_implementation(), protocol, ec);
+ asio::detail::throw_error(ec, "open");
+ }
+
+ /// Construct an acceptor opened on the given endpoint.
+ /**
+ * This constructor creates an acceptor and automatically opens it to listen
+ * for new connections on the specified endpoint.
+ *
+ * @param io_service The io_service object that the acceptor will use to
+ * dispatch handlers for any asynchronous operations performed on the
+ * acceptor.
+ *
+ * @param endpoint An endpoint on the local machine on which the acceptor
+ * will listen for new connections.
+ *
+ * @param reuse_addr Whether the constructor should set the socket option
+ * socket_base::reuse_address.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @note This constructor is equivalent to the following code:
+ * @code
+ * basic_socket_acceptor<Protocol> acceptor(io_service);
+ * acceptor.open(endpoint.protocol());
+ * if (reuse_addr)
+ * acceptor.set_option(socket_base::reuse_address(true));
+ * acceptor.bind(endpoint);
+ * acceptor.listen(listen_backlog);
+ * @endcode
+ */
+ basic_socket_acceptor(asio::io_service& io_service,
+ const endpoint_type& endpoint, bool reuse_addr = true)
+ : basic_io_object<SocketAcceptorService>(io_service)
+ {
+ asio::error_code ec;
+ const protocol_type protocol = endpoint.protocol();
+ this->get_service().open(this->get_implementation(), protocol, ec);
+ asio::detail::throw_error(ec, "open");
+ if (reuse_addr)
+ {
+ this->get_service().set_option(this->get_implementation(),
+ socket_base::reuse_address(true), ec);
+ asio::detail::throw_error(ec, "set_option");
+ }
+ this->get_service().bind(this->get_implementation(), endpoint, ec);
+ asio::detail::throw_error(ec, "bind");
+ this->get_service().listen(this->get_implementation(),
+ socket_base::max_connections, ec);
+ asio::detail::throw_error(ec, "listen");
+ }
+
+ /// Construct a basic_socket_acceptor on an existing native acceptor.
+ /**
+ * This constructor creates an acceptor object to hold an existing native
+ * acceptor.
+ *
+ * @param io_service The io_service object that the acceptor will use to
+ * dispatch handlers for any asynchronous operations performed on the
+ * acceptor.
+ *
+ * @param protocol An object specifying protocol parameters to be used.
+ *
+ * @param native_acceptor A native acceptor.
+ *
+ * @throws asio::system_error Thrown on failure.
+ */
+ basic_socket_acceptor(asio::io_service& io_service,
+ const protocol_type& protocol, const native_handle_type& native_acceptor)
+ : basic_io_object<SocketAcceptorService>(io_service)
+ {
+ asio::error_code ec;
+ this->get_service().assign(this->get_implementation(),
+ protocol, native_acceptor, ec);
+ asio::detail::throw_error(ec, "assign");
+ }
+
+#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
+ /// Move-construct a basic_socket_acceptor from another.
+ /**
+ * This constructor moves an acceptor from one object to another.
+ *
+ * @param other The other basic_socket_acceptor object from which the move
+ * will occur.
+ *
+ * @note Following the move, the moved-from object is in the same state as if
+ * constructed using the @c basic_socket_acceptor(io_service&) constructor.
+ */
+ basic_socket_acceptor(basic_socket_acceptor&& other)
+ : basic_io_object<SocketAcceptorService>(
+ ASIO_MOVE_CAST(basic_socket_acceptor)(other))
+ {
+ }
+
+ /// Move-assign a basic_socket_acceptor from another.
+ /**
+ * This assignment operator moves an acceptor from one object to another.
+ *
+ * @param other The other basic_socket_acceptor object from which the move
+ * will occur.
+ *
+ * @note Following the move, the moved-from object is in the same state as if
+ * constructed using the @c basic_socket_acceptor(io_service&) constructor.
+ */
+ basic_socket_acceptor& operator=(basic_socket_acceptor&& other)
+ {
+ basic_io_object<SocketAcceptorService>::operator=(
+ ASIO_MOVE_CAST(basic_socket_acceptor)(other));
+ return *this;
+ }
+
+ // All socket acceptors have access to each other's implementations.
+ template <typename Protocol1, typename SocketAcceptorService1>
+ friend class basic_socket_acceptor;
+
+ /// Move-construct a basic_socket_acceptor from an acceptor of another
+ /// protocol type.
+ /**
+ * This constructor moves an acceptor from one object to another.
+ *
+ * @param other The other basic_socket_acceptor object from which the move
+ * will occur.
+ *
+ * @note Following the move, the moved-from object is in the same state as if
+ * constructed using the @c basic_socket(io_service&) constructor.
+ */
+ template <typename Protocol1, typename SocketAcceptorService1>
+ basic_socket_acceptor(
+ basic_socket_acceptor<Protocol1, SocketAcceptorService1>&& other,
+ typename enable_if<is_convertible<Protocol1, Protocol>::value>::type* = 0)
+ : basic_io_object<SocketAcceptorService>(other.get_io_service())
+ {
+ this->get_service().template converting_move_construct<Protocol1>(
+ this->get_implementation(), other.get_implementation());
+ }
+
+ /// Move-assign a basic_socket_acceptor from an acceptor of another protocol
+ /// type.
+ /**
+ * This assignment operator moves an acceptor from one object to another.
+ *
+ * @param other The other basic_socket_acceptor object from which the move
+ * will occur.
+ *
+ * @note Following the move, the moved-from object is in the same state as if
+ * constructed using the @c basic_socket(io_service&) constructor.
+ */
+ template <typename Protocol1, typename SocketAcceptorService1>
+ typename enable_if<is_convertible<Protocol1, Protocol>::value,
+ basic_socket_acceptor>::type& operator=(
+ basic_socket_acceptor<Protocol1, SocketAcceptorService1>&& other)
+ {
+ basic_socket_acceptor tmp(ASIO_MOVE_CAST2(basic_socket_acceptor<
+ Protocol1, SocketAcceptorService1>)(other));
+ basic_io_object<SocketAcceptorService>::operator=(
+ ASIO_MOVE_CAST(basic_socket_acceptor)(tmp));
+ return *this;
+ }
+#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
+
+ /// Open the acceptor using the specified protocol.
+ /**
+ * This function opens the socket acceptor so that it will use the specified
+ * protocol.
+ *
+ * @param protocol An object specifying which protocol is to be used.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * acceptor.open(asio::ip::tcp::v4());
+ * @endcode
+ */
+ void open(const protocol_type& protocol = protocol_type())
+ {
+ asio::error_code ec;
+ this->get_service().open(this->get_implementation(), protocol, ec);
+ asio::detail::throw_error(ec, "open");
+ }
+
+ /// Open the acceptor using the specified protocol.
+ /**
+ * This function opens the socket acceptor so that it will use the specified
+ * protocol.
+ *
+ * @param protocol An object specifying which protocol is to be used.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * asio::error_code ec;
+ * acceptor.open(asio::ip::tcp::v4(), ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ asio::error_code open(const protocol_type& protocol,
+ asio::error_code& ec)
+ {
+ return this->get_service().open(this->get_implementation(), protocol, ec);
+ }
+
+ /// Assigns an existing native acceptor to the acceptor.
+ /*
+ * This function opens the acceptor to hold an existing native acceptor.
+ *
+ * @param protocol An object specifying which protocol is to be used.
+ *
+ * @param native_acceptor A native acceptor.
+ *
+ * @throws asio::system_error Thrown on failure.
+ */
+ void assign(const protocol_type& protocol,
+ const native_handle_type& native_acceptor)
+ {
+ asio::error_code ec;
+ this->get_service().assign(this->get_implementation(),
+ protocol, native_acceptor, ec);
+ asio::detail::throw_error(ec, "assign");
+ }
+
+ /// Assigns an existing native acceptor to the acceptor.
+ /*
+ * This function opens the acceptor to hold an existing native acceptor.
+ *
+ * @param protocol An object specifying which protocol is to be used.
+ *
+ * @param native_acceptor A native acceptor.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ */
+ asio::error_code assign(const protocol_type& protocol,
+ const native_handle_type& native_acceptor, asio::error_code& ec)
+ {
+ return this->get_service().assign(this->get_implementation(),
+ protocol, native_acceptor, ec);
+ }
+
+ /// Determine whether the acceptor is open.
+ bool is_open() const
+ {
+ return this->get_service().is_open(this->get_implementation());
+ }
+
+ /// Bind the acceptor to the given local endpoint.
+ /**
+ * This function binds the socket acceptor to the specified endpoint on the
+ * local machine.
+ *
+ * @param endpoint An endpoint on the local machine to which the socket
+ * acceptor will be bound.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * asio::ip::tcp::endpoint endpoint(asio::ip::tcp::v4(), 12345);
+ * acceptor.open(endpoint.protocol());
+ * acceptor.bind(endpoint);
+ * @endcode
+ */
+ void bind(const endpoint_type& endpoint)
+ {
+ asio::error_code ec;
+ this->get_service().bind(this->get_implementation(), endpoint, ec);
+ asio::detail::throw_error(ec, "bind");
+ }
+
+ /// Bind the acceptor to the given local endpoint.
+ /**
+ * This function binds the socket acceptor to the specified endpoint on the
+ * local machine.
+ *
+ * @param endpoint An endpoint on the local machine to which the socket
+ * acceptor will be bound.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * asio::ip::tcp::endpoint endpoint(asio::ip::tcp::v4(), 12345);
+ * acceptor.open(endpoint.protocol());
+ * asio::error_code ec;
+ * acceptor.bind(endpoint, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ asio::error_code bind(const endpoint_type& endpoint,
+ asio::error_code& ec)
+ {
+ return this->get_service().bind(this->get_implementation(), endpoint, ec);
+ }
+
+ /// Place the acceptor into the state where it will listen for new
+ /// connections.
+ /**
+ * This function puts the socket acceptor into the state where it may accept
+ * new connections.
+ *
+ * @param backlog The maximum length of the queue of pending connections.
+ *
+ * @throws asio::system_error Thrown on failure.
+ */
+ void listen(int backlog = socket_base::max_connections)
+ {
+ asio::error_code ec;
+ this->get_service().listen(this->get_implementation(), backlog, ec);
+ asio::detail::throw_error(ec, "listen");
+ }
+
+ /// Place the acceptor into the state where it will listen for new
+ /// connections.
+ /**
+ * This function puts the socket acceptor into the state where it may accept
+ * new connections.
+ *
+ * @param backlog The maximum length of the queue of pending connections.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::error_code ec;
+ * acceptor.listen(asio::socket_base::max_connections, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ asio::error_code listen(int backlog, asio::error_code& ec)
+ {
+ return this->get_service().listen(this->get_implementation(), backlog, ec);
+ }
+
+ /// Close the acceptor.
+ /**
+ * This function is used to close the acceptor. Any asynchronous accept
+ * operations will be cancelled immediately.
+ *
+ * A subsequent call to open() is required before the acceptor can again be
+ * used to again perform socket accept operations.
+ *
+ * @throws asio::system_error Thrown on failure.
+ */
+ void close()
+ {
+ asio::error_code ec;
+ this->get_service().close(this->get_implementation(), ec);
+ asio::detail::throw_error(ec, "close");
+ }
+
+ /// Close the acceptor.
+ /**
+ * This function is used to close the acceptor. Any asynchronous accept
+ * operations will be cancelled immediately.
+ *
+ * A subsequent call to open() is required before the acceptor can again be
+ * used to again perform socket accept operations.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::error_code ec;
+ * acceptor.close(ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ asio::error_code close(asio::error_code& ec)
+ {
+ return this->get_service().close(this->get_implementation(), ec);
+ }
+
+ /// (Deprecated: Use native_handle().) Get the native acceptor representation.
+ /**
+ * This function may be used to obtain the underlying representation of the
+ * acceptor. This is intended to allow access to native acceptor functionality
+ * that is not otherwise provided.
+ */
+ native_type native()
+ {
+ return this->get_service().native_handle(this->get_implementation());
+ }
+
+ /// Get the native acceptor representation.
+ /**
+ * This function may be used to obtain the underlying representation of the
+ * acceptor. This is intended to allow access to native acceptor functionality
+ * that is not otherwise provided.
+ */
+ native_handle_type native_handle()
+ {
+ return this->get_service().native_handle(this->get_implementation());
+ }
+
+ /// Cancel all asynchronous operations associated with the acceptor.
+ /**
+ * This function causes all outstanding asynchronous connect, send and receive
+ * operations to finish immediately, and the handlers for cancelled operations
+ * will be passed the asio::error::operation_aborted error.
+ *
+ * @throws asio::system_error Thrown on failure.
+ */
+ void cancel()
+ {
+ asio::error_code ec;
+ this->get_service().cancel(this->get_implementation(), ec);
+ asio::detail::throw_error(ec, "cancel");
+ }
+
+ /// Cancel all asynchronous operations associated with the acceptor.
+ /**
+ * This function causes all outstanding asynchronous connect, send and receive
+ * operations to finish immediately, and the handlers for cancelled operations
+ * will be passed the asio::error::operation_aborted error.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ */
+ asio::error_code cancel(asio::error_code& ec)
+ {
+ return this->get_service().cancel(this->get_implementation(), ec);
+ }
+
+ /// Set an option on the acceptor.
+ /**
+ * This function is used to set an option on the acceptor.
+ *
+ * @param option The new option value to be set on the acceptor.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @sa SettableSocketOption @n
+ * asio::socket_base::reuse_address
+ * asio::socket_base::enable_connection_aborted
+ *
+ * @par Example
+ * Setting the SOL_SOCKET/SO_REUSEADDR option:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::acceptor::reuse_address option(true);
+ * acceptor.set_option(option);
+ * @endcode
+ */
+ template <typename SettableSocketOption>
+ void set_option(const SettableSocketOption& option)
+ {
+ asio::error_code ec;
+ this->get_service().set_option(this->get_implementation(), option, ec);
+ asio::detail::throw_error(ec, "set_option");
+ }
+
+ /// Set an option on the acceptor.
+ /**
+ * This function is used to set an option on the acceptor.
+ *
+ * @param option The new option value to be set on the acceptor.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @sa SettableSocketOption @n
+ * asio::socket_base::reuse_address
+ * asio::socket_base::enable_connection_aborted
+ *
+ * @par Example
+ * Setting the SOL_SOCKET/SO_REUSEADDR option:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::acceptor::reuse_address option(true);
+ * asio::error_code ec;
+ * acceptor.set_option(option, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ template <typename SettableSocketOption>
+ asio::error_code set_option(const SettableSocketOption& option,
+ asio::error_code& ec)
+ {
+ return this->get_service().set_option(
+ this->get_implementation(), option, ec);
+ }
+
+ /// Get an option from the acceptor.
+ /**
+ * This function is used to get the current value of an option on the
+ * acceptor.
+ *
+ * @param option The option value to be obtained from the acceptor.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @sa GettableSocketOption @n
+ * asio::socket_base::reuse_address
+ *
+ * @par Example
+ * Getting the value of the SOL_SOCKET/SO_REUSEADDR option:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::acceptor::reuse_address option;
+ * acceptor.get_option(option);
+ * bool is_set = option.get();
+ * @endcode
+ */
+ template <typename GettableSocketOption>
+ void get_option(GettableSocketOption& option)
+ {
+ asio::error_code ec;
+ this->get_service().get_option(this->get_implementation(), option, ec);
+ asio::detail::throw_error(ec, "get_option");
+ }
+
+ /// Get an option from the acceptor.
+ /**
+ * This function is used to get the current value of an option on the
+ * acceptor.
+ *
+ * @param option The option value to be obtained from the acceptor.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @sa GettableSocketOption @n
+ * asio::socket_base::reuse_address
+ *
+ * @par Example
+ * Getting the value of the SOL_SOCKET/SO_REUSEADDR option:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::acceptor::reuse_address option;
+ * asio::error_code ec;
+ * acceptor.get_option(option, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * bool is_set = option.get();
+ * @endcode
+ */
+ template <typename GettableSocketOption>
+ asio::error_code get_option(GettableSocketOption& option,
+ asio::error_code& ec)
+ {
+ return this->get_service().get_option(
+ this->get_implementation(), option, ec);
+ }
+
+ /// Perform an IO control command on the acceptor.
+ /**
+ * This function is used to execute an IO control command on the acceptor.
+ *
+ * @param command The IO control command to be performed on the acceptor.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @sa IoControlCommand @n
+ * asio::socket_base::non_blocking_io
+ *
+ * @par Example
+ * Getting the number of bytes ready to read:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::acceptor::non_blocking_io command(true);
+ * socket.io_control(command);
+ * @endcode
+ */
+ template <typename IoControlCommand>
+ void io_control(IoControlCommand& command)
+ {
+ asio::error_code ec;
+ this->get_service().io_control(this->get_implementation(), command, ec);
+ asio::detail::throw_error(ec, "io_control");
+ }
+
+ /// Perform an IO control command on the acceptor.
+ /**
+ * This function is used to execute an IO control command on the acceptor.
+ *
+ * @param command The IO control command to be performed on the acceptor.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @sa IoControlCommand @n
+ * asio::socket_base::non_blocking_io
+ *
+ * @par Example
+ * Getting the number of bytes ready to read:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::acceptor::non_blocking_io command(true);
+ * asio::error_code ec;
+ * socket.io_control(command, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ template <typename IoControlCommand>
+ asio::error_code io_control(IoControlCommand& command,
+ asio::error_code& ec)
+ {
+ return this->get_service().io_control(
+ this->get_implementation(), command, ec);
+ }
+
+ /// Gets the non-blocking mode of the acceptor.
+ /**
+ * @returns @c true if the acceptor's synchronous operations will fail with
+ * asio::error::would_block if they are unable to perform the requested
+ * operation immediately. If @c false, synchronous operations will block
+ * until complete.
+ *
+ * @note The non-blocking mode has no effect on the behaviour of asynchronous
+ * operations. Asynchronous operations will never fail with the error
+ * asio::error::would_block.
+ */
+ bool non_blocking() const
+ {
+ return this->get_service().non_blocking(this->get_implementation());
+ }
+
+ /// Sets the non-blocking mode of the acceptor.
+ /**
+ * @param mode If @c true, the acceptor's synchronous operations will fail
+ * with asio::error::would_block if they are unable to perform the
+ * requested operation immediately. If @c false, synchronous operations will
+ * block until complete.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @note The non-blocking mode has no effect on the behaviour of asynchronous
+ * operations. Asynchronous operations will never fail with the error
+ * asio::error::would_block.
+ */
+ void non_blocking(bool mode)
+ {
+ asio::error_code ec;
+ this->get_service().non_blocking(this->get_implementation(), mode, ec);
+ asio::detail::throw_error(ec, "non_blocking");
+ }
+
+ /// Sets the non-blocking mode of the acceptor.
+ /**
+ * @param mode If @c true, the acceptor's synchronous operations will fail
+ * with asio::error::would_block if they are unable to perform the
+ * requested operation immediately. If @c false, synchronous operations will
+ * block until complete.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @note The non-blocking mode has no effect on the behaviour of asynchronous
+ * operations. Asynchronous operations will never fail with the error
+ * asio::error::would_block.
+ */
+ asio::error_code non_blocking(
+ bool mode, asio::error_code& ec)
+ {
+ return this->get_service().non_blocking(
+ this->get_implementation(), mode, ec);
+ }
+
+ /// Gets the non-blocking mode of the native acceptor implementation.
+ /**
+ * This function is used to retrieve the non-blocking mode of the underlying
+ * native acceptor. This mode has no effect on the behaviour of the acceptor
+ * object's synchronous operations.
+ *
+ * @returns @c true if the underlying acceptor is in non-blocking mode and
+ * direct system calls may fail with asio::error::would_block (or the
+ * equivalent system error).
+ *
+ * @note The current non-blocking mode is cached by the acceptor object.
+ * Consequently, the return value may be incorrect if the non-blocking mode
+ * was set directly on the native acceptor.
+ */
+ bool native_non_blocking() const
+ {
+ return this->get_service().native_non_blocking(this->get_implementation());
+ }
+
+ /// Sets the non-blocking mode of the native acceptor implementation.
+ /**
+ * This function is used to modify the non-blocking mode of the underlying
+ * native acceptor. It has no effect on the behaviour of the acceptor object's
+ * synchronous operations.
+ *
+ * @param mode If @c true, the underlying acceptor is put into non-blocking
+ * mode and direct system calls may fail with asio::error::would_block
+ * (or the equivalent system error).
+ *
+ * @throws asio::system_error Thrown on failure. If the @c mode is
+ * @c false, but the current value of @c non_blocking() is @c true, this
+ * function fails with asio::error::invalid_argument, as the
+ * combination does not make sense.
+ */
+ void native_non_blocking(bool mode)
+ {
+ asio::error_code ec;
+ this->get_service().native_non_blocking(
+ this->get_implementation(), mode, ec);
+ asio::detail::throw_error(ec, "native_non_blocking");
+ }
+
+ /// Sets the non-blocking mode of the native acceptor implementation.
+ /**
+ * This function is used to modify the non-blocking mode of the underlying
+ * native acceptor. It has no effect on the behaviour of the acceptor object's
+ * synchronous operations.
+ *
+ * @param mode If @c true, the underlying acceptor is put into non-blocking
+ * mode and direct system calls may fail with asio::error::would_block
+ * (or the equivalent system error).
+ *
+ * @param ec Set to indicate what error occurred, if any. If the @c mode is
+ * @c false, but the current value of @c non_blocking() is @c true, this
+ * function fails with asio::error::invalid_argument, as the
+ * combination does not make sense.
+ */
+ asio::error_code native_non_blocking(
+ bool mode, asio::error_code& ec)
+ {
+ return this->get_service().native_non_blocking(
+ this->get_implementation(), mode, ec);
+ }
+
+ /// Get the local endpoint of the acceptor.
+ /**
+ * This function is used to obtain the locally bound endpoint of the acceptor.
+ *
+ * @returns An object that represents the local endpoint of the acceptor.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::endpoint endpoint = acceptor.local_endpoint();
+ * @endcode
+ */
+ endpoint_type local_endpoint() const
+ {
+ asio::error_code ec;
+ endpoint_type ep = this->get_service().local_endpoint(
+ this->get_implementation(), ec);
+ asio::detail::throw_error(ec, "local_endpoint");
+ return ep;
+ }
+
+ /// Get the local endpoint of the acceptor.
+ /**
+ * This function is used to obtain the locally bound endpoint of the acceptor.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @returns An object that represents the local endpoint of the acceptor.
+ * Returns a default-constructed endpoint object if an error occurred and the
+ * error handler did not throw an exception.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::error_code ec;
+ * asio::ip::tcp::endpoint endpoint = acceptor.local_endpoint(ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ endpoint_type local_endpoint(asio::error_code& ec) const
+ {
+ return this->get_service().local_endpoint(this->get_implementation(), ec);
+ }
+
+ /// Accept a new connection.
+ /**
+ * This function is used to accept a new connection from a peer into the
+ * given socket. The function call will block until a new connection has been
+ * accepted successfully or an error occurs.
+ *
+ * @param peer The socket into which the new connection will be accepted.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::socket socket(io_service);
+ * acceptor.accept(socket);
+ * @endcode
+ */
+ template <typename Protocol1, typename SocketService>
+ void accept(basic_socket<Protocol1, SocketService>& peer,
+ typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+ {
+ asio::error_code ec;
+ this->get_service().accept(this->get_implementation(),
+ peer, static_cast<endpoint_type*>(0), ec);
+ asio::detail::throw_error(ec, "accept");
+ }
+
+ /// Accept a new connection.
+ /**
+ * This function is used to accept a new connection from a peer into the
+ * given socket. The function call will block until a new connection has been
+ * accepted successfully or an error occurs.
+ *
+ * @param peer The socket into which the new connection will be accepted.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::soocket socket(io_service);
+ * asio::error_code ec;
+ * acceptor.accept(socket, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ template <typename Protocol1, typename SocketService>
+ asio::error_code accept(
+ basic_socket<Protocol1, SocketService>& peer,
+ asio::error_code& ec,
+ typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+ {
+ return this->get_service().accept(this->get_implementation(),
+ peer, static_cast<endpoint_type*>(0), ec);
+ }
+
+ /// Start an asynchronous accept.
+ /**
+ * This function is used to asynchronously accept a new connection into a
+ * socket. The function call always returns immediately.
+ *
+ * @param peer The socket into which the new connection will be accepted.
+ * Ownership of the peer object is retained by the caller, which must
+ * guarantee that it is valid until the handler is called.
+ *
+ * @param handler The handler to be called when the accept operation
+ * completes. Copies will be made of the handler as required. The function
+ * signature of the handler must be:
+ * @code void handler(
+ * const asio::error_code& error // Result of operation.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * @code
+ * void accept_handler(const asio::error_code& error)
+ * {
+ * if (!error)
+ * {
+ * // Accept succeeded.
+ * }
+ * }
+ *
+ * ...
+ *
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::socket socket(io_service);
+ * acceptor.async_accept(socket, accept_handler);
+ * @endcode
+ */
+ template <typename Protocol1, typename SocketService, typename AcceptHandler>
+ ASIO_INITFN_RESULT_TYPE(AcceptHandler,
+ void (asio::error_code))
+ async_accept(basic_socket<Protocol1, SocketService>& peer,
+ ASIO_MOVE_ARG(AcceptHandler) handler,
+ typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+ {
+ // If you get an error on the following line it means that your handler does
+ // not meet the documented type requirements for a AcceptHandler.
+ ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
+
+ return this->get_service().async_accept(this->get_implementation(),
+ peer, static_cast<endpoint_type*>(0),
+ ASIO_MOVE_CAST(AcceptHandler)(handler));
+ }
+
+ /// Accept a new connection and obtain the endpoint of the peer
+ /**
+ * This function is used to accept a new connection from a peer into the
+ * given socket, and additionally provide the endpoint of the remote peer.
+ * The function call will block until a new connection has been accepted
+ * successfully or an error occurs.
+ *
+ * @param peer The socket into which the new connection will be accepted.
+ *
+ * @param peer_endpoint An endpoint object which will receive the endpoint of
+ * the remote peer.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::socket socket(io_service);
+ * asio::ip::tcp::endpoint endpoint;
+ * acceptor.accept(socket, endpoint);
+ * @endcode
+ */
+ template <typename SocketService>
+ void accept(basic_socket<protocol_type, SocketService>& peer,
+ endpoint_type& peer_endpoint)
+ {
+ asio::error_code ec;
+ this->get_service().accept(this->get_implementation(),
+ peer, &peer_endpoint, ec);
+ asio::detail::throw_error(ec, "accept");
+ }
+
+ /// Accept a new connection and obtain the endpoint of the peer
+ /**
+ * This function is used to accept a new connection from a peer into the
+ * given socket, and additionally provide the endpoint of the remote peer.
+ * The function call will block until a new connection has been accepted
+ * successfully or an error occurs.
+ *
+ * @param peer The socket into which the new connection will be accepted.
+ *
+ * @param peer_endpoint An endpoint object which will receive the endpoint of
+ * the remote peer.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @par Example
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * ...
+ * asio::ip::tcp::socket socket(io_service);
+ * asio::ip::tcp::endpoint endpoint;
+ * asio::error_code ec;
+ * acceptor.accept(socket, endpoint, ec);
+ * if (ec)
+ * {
+ * // An error occurred.
+ * }
+ * @endcode
+ */
+ template <typename SocketService>
+ asio::error_code accept(
+ basic_socket<protocol_type, SocketService>& peer,
+ endpoint_type& peer_endpoint, asio::error_code& ec)
+ {
+ return this->get_service().accept(
+ this->get_implementation(), peer, &peer_endpoint, ec);
+ }
+
+ /// Start an asynchronous accept.
+ /**
+ * This function is used to asynchronously accept a new connection into a
+ * socket, and additionally obtain the endpoint of the remote peer. The
+ * function call always returns immediately.
+ *
+ * @param peer The socket into which the new connection will be accepted.
+ * Ownership of the peer object is retained by the caller, which must
+ * guarantee that it is valid until the handler is called.
+ *
+ * @param peer_endpoint An endpoint object into which the endpoint of the
+ * remote peer will be written. Ownership of the peer_endpoint object is
+ * retained by the caller, which must guarantee that it is valid until the
+ * handler is called.
+ *
+ * @param handler The handler to be called when the accept operation
+ * completes. Copies will be made of the handler as required. The function
+ * signature of the handler must be:
+ * @code void handler(
+ * const asio::error_code& error // Result of operation.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ */
+ template <typename SocketService, typename AcceptHandler>
+ ASIO_INITFN_RESULT_TYPE(AcceptHandler,
+ void (asio::error_code))
+ async_accept(basic_socket<protocol_type, SocketService>& peer,
+ endpoint_type& peer_endpoint, ASIO_MOVE_ARG(AcceptHandler) handler)
+ {
+ // If you get an error on the following line it means that your handler does
+ // not meet the documented type requirements for a AcceptHandler.
+ ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
+
+ return this->get_service().async_accept(this->get_implementation(), peer,
+ &peer_endpoint, ASIO_MOVE_CAST(AcceptHandler)(handler));
+ }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_BASIC_SOCKET_ACCEPTOR_HPP
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+//
+// basic_socket_iostream.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2014 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_BASIC_SOCKET_IOSTREAM_HPP
+#define ASIO_BASIC_SOCKET_IOSTREAM_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if !defined(ASIO_NO_IOSTREAM)
+
+#include <istream>
+#include <ostream>
+#include "asio/basic_socket_streambuf.hpp"
+#include "asio/stream_socket_service.hpp"
+
+#if !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+# include "asio/detail/variadic_templates.hpp"
+
+// A macro that should expand to:
+// template <typename T1, ..., typename Tn>
+// explicit basic_socket_iostream(T1 x1, ..., Tn xn)
+// : std::basic_iostream<char>(
+// &this->detail::socket_iostream_base<
+// Protocol, StreamSocketService, Time,
+// TimeTraits, TimerService>::streambuf_)
+// {
+// if (rdbuf()->connect(x1, ..., xn) == 0)
+// this->setstate(std::ios_base::failbit);
+// }
+// This macro should only persist within this file.
+
+# define ASIO_PRIVATE_CTR_DEF(n) \
+ template <ASIO_VARIADIC_TPARAMS(n)> \
+ explicit basic_socket_iostream(ASIO_VARIADIC_PARAMS(n)) \
+ : std::basic_iostream<char>( \
+ &this->detail::socket_iostream_base< \
+ Protocol, StreamSocketService, Time, \
+ TimeTraits, TimerService>::streambuf_) \
+ { \
+ this->setf(std::ios_base::unitbuf); \
+ if (rdbuf()->connect(ASIO_VARIADIC_ARGS(n)) == 0) \
+ this->setstate(std::ios_base::failbit); \
+ } \
+ /**/
+
+// A macro that should expand to:
+// template <typename T1, ..., typename Tn>
+// void connect(T1 x1, ..., Tn xn)
+// {
+// if (rdbuf()->connect(x1, ..., xn) == 0)
+// this->setstate(std::ios_base::failbit);
+// }
+// This macro should only persist within this file.
+
+# define ASIO_PRIVATE_CONNECT_DEF(n) \
+ template <ASIO_VARIADIC_TPARAMS(n)> \
+ void connect(ASIO_VARIADIC_PARAMS(n)) \
+ { \
+ if (rdbuf()->connect(ASIO_VARIADIC_ARGS(n)) == 0) \
+ this->setstate(std::ios_base::failbit); \
+ } \
+ /**/
+
+#endif // !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// A separate base class is used to ensure that the streambuf is initialised
+// prior to the basic_socket_iostream's basic_iostream base class.
+template <typename Protocol, typename StreamSocketService,
+ typename Time, typename TimeTraits, typename TimerService>
+class socket_iostream_base
+{
+protected:
+ basic_socket_streambuf<Protocol, StreamSocketService,
+ Time, TimeTraits, TimerService> streambuf_;
+};
+
+}
+
+/// Iostream interface for a socket.
+template <typename Protocol,
+ typename StreamSocketService = stream_socket_service<Protocol>,
+#if defined(ASIO_HAS_BOOST_DATE_TIME) \
+ || defined(GENERATING_DOCUMENTATION)
+ typename Time = boost::posix_time::ptime,
+ typename TimeTraits = asio::time_traits<Time>,
+ typename TimerService = deadline_timer_service<Time, TimeTraits> >
+#else
+ typename Time = steady_timer::clock_type,
+ typename TimeTraits = steady_timer::traits_type,
+ typename TimerService = steady_timer::service_type>
+#endif
+class basic_socket_iostream
+ : private detail::socket_iostream_base<Protocol,
+ StreamSocketService, Time, TimeTraits, TimerService>,
+ public std::basic_iostream<char>
+{
+private:
+ // These typedefs are intended keep this class's implementation independent
+ // of whether it's using Boost.DateTime, Boost.Chrono or std::chrono.
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+ typedef TimeTraits traits_helper;
+#else
+ typedef detail::chrono_time_traits<Time, TimeTraits> traits_helper;
+#endif
+
+public:
+ /// The endpoint type.
+ typedef typename Protocol::endpoint endpoint_type;
+
+#if defined(GENERATING_DOCUMENTATION)
+ /// The time type.
+ typedef typename TimeTraits::time_type time_type;
+
+ /// The duration type.
+ typedef typename TimeTraits::duration_type duration_type;
+#else
+ typedef typename traits_helper::time_type time_type;
+ typedef typename traits_helper::duration_type duration_type;
+#endif
+
+ /// Construct a basic_socket_iostream without establishing a connection.
+ basic_socket_iostream()
+ : std::basic_iostream<char>(
+ &this->detail::socket_iostream_base<
+ Protocol, StreamSocketService, Time,
+ TimeTraits, TimerService>::streambuf_)
+ {
+ this->setf(std::ios_base::unitbuf);
+ }
+
+#if defined(GENERATING_DOCUMENTATION)
+ /// Establish a connection to an endpoint corresponding to a resolver query.
+ /**
+ * This constructor automatically establishes a connection based on the
+ * supplied resolver query parameters. The arguments are used to construct
+ * a resolver query object.
+ */
+ template <typename T1, ..., typename TN>
+ explicit basic_socket_iostream(T1 t1, ..., TN tn);
+#elif defined(ASIO_HAS_VARIADIC_TEMPLATES)
+ template <typename... T>
+ explicit basic_socket_iostream(T... x)
+ : std::basic_iostream<char>(
+ &this->detail::socket_iostream_base<
+ Protocol, StreamSocketService, Time,
+ TimeTraits, TimerService>::streambuf_)
+ {
+ this->setf(std::ios_base::unitbuf);
+ if (rdbuf()->connect(x...) == 0)
+ this->setstate(std::ios_base::failbit);
+ }
+#else
+ ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_CTR_DEF)
+#endif
+
+#if defined(GENERATING_DOCUMENTATION)
+ /// Establish a connection to an endpoint corresponding to a resolver query.
+ /**
+ * This function automatically establishes a connection based on the supplied
+ * resolver query parameters. The arguments are used to construct a resolver
+ * query object.
+ */
+ template <typename T1, ..., typename TN>
+ void connect(T1 t1, ..., TN tn);
+#elif defined(ASIO_HAS_VARIADIC_TEMPLATES)
+ template <typename... T>
+ void connect(T... x)
+ {
+ if (rdbuf()->connect(x...) == 0)
+ this->setstate(std::ios_base::failbit);
+ }
+#else
+ ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_CONNECT_DEF)
+#endif
+
+ /// Close the connection.
+ void close()
+ {
+ if (rdbuf()->close() == 0)
+ this->setstate(std::ios_base::failbit);
+ }
+
+ /// Return a pointer to the underlying streambuf.
+ basic_socket_streambuf<Protocol, StreamSocketService,
+ Time, TimeTraits, TimerService>* rdbuf() const
+ {
+ return const_cast<basic_socket_streambuf<Protocol, StreamSocketService,
+ Time, TimeTraits, TimerService>*>(
+ &this->detail::socket_iostream_base<
+ Protocol, StreamSocketService, Time,
+ TimeTraits, TimerService>::streambuf_);
+ }
+
+ /// Get the last error associated with the stream.
+ /**
+ * @return An \c error_code corresponding to the last error from the stream.
+ *
+ * @par Example
+ * To print the error associated with a failure to establish a connection:
+ * @code tcp::iostream s("www.boost.org", "http");
+ * if (!s)
+ * {
+ * std::cout << "Error: " << s.error().message() << std::endl;
+ * } @endcode
+ */
+ const asio::error_code& error() const
+ {
+ return rdbuf()->puberror();
+ }
+
+ /// Get the stream's expiry time as an absolute time.
+ /**
+ * @return An absolute time value representing the stream's expiry time.
+ */
+ time_type expires_at() const
+ {
+ return rdbuf()->expires_at();
+ }
+
+ /// Set the stream's expiry time as an absolute time.
+ /**
+ * This function sets the expiry time associated with the stream. Stream
+ * operations performed after this time (where the operations cannot be
+ * completed using the internal buffers) will fail with the error
+ * asio::error::operation_aborted.
+ *
+ * @param expiry_time The expiry time to be used for the stream.
+ */
+ void expires_at(const time_type& expiry_time)
+ {
+ rdbuf()->expires_at(expiry_time);
+ }
+
+ /// Get the timer's expiry time relative to now.
+ /**
+ * @return A relative time value representing the stream's expiry time.
+ */
+ duration_type expires_from_now() const
+ {
+ return rdbuf()->expires_from_now();
+ }
+
+ /// Set the stream's expiry time relative to now.
+ /**
+ * This function sets the expiry time associated with the stream. Stream
+ * operations performed after this time (where the operations cannot be
+ * completed using the internal buffers) will fail with the error
+ * asio::error::operation_aborted.
+ *
+ * @param expiry_time The expiry time to be used for the timer.
+ */
+ void expires_from_now(const duration_type& expiry_time)
+ {
+ rdbuf()->expires_from_now(expiry_time);
+ }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#if !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+# undef ASIO_PRIVATE_CTR_DEF
+# undef ASIO_PRIVATE_CONNECT_DEF
+#endif // !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+#endif // !defined(ASIO_NO_IOSTREAM)
+
+#endif // ASIO_BASIC_SOCKET_IOSTREAM_HPP
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+//
+// basic_socket_streambuf.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2014 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_BASIC_SOCKET_STREAMBUF_HPP
+#define ASIO_BASIC_SOCKET_STREAMBUF_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if !defined(ASIO_NO_IOSTREAM)
+
+#include <streambuf>
+#include "asio/basic_socket.hpp"
+#include "asio/deadline_timer_service.hpp"
+#include "asio/detail/array.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/io_service.hpp"
+#include "asio/stream_socket_service.hpp"
+
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+# include "asio/deadline_timer.hpp"
+#else
+# include "asio/steady_timer.hpp"
+#endif
+
+#if !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+# include "asio/detail/variadic_templates.hpp"
+
+// A macro that should expand to:
+// template <typename T1, ..., typename Tn>
+// basic_socket_streambuf<Protocol, StreamSocketService,
+// Time, TimeTraits, TimerService>* connect(
+// T1 x1, ..., Tn xn)
+// {
+// init_buffers();
+// this->basic_socket<Protocol, StreamSocketService>::close(ec_);
+// typedef typename Protocol::resolver resolver_type;
+// typedef typename resolver_type::query resolver_query;
+// resolver_query query(x1, ..., xn);
+// resolve_and_connect(query);
+// return !ec_ ? this : 0;
+// }
+// This macro should only persist within this file.
+
+# define ASIO_PRIVATE_CONNECT_DEF(n) \
+ template <ASIO_VARIADIC_TPARAMS(n)> \
+ basic_socket_streambuf<Protocol, StreamSocketService, \
+ Time, TimeTraits, TimerService>* connect(ASIO_VARIADIC_PARAMS(n)) \
+ { \
+ init_buffers(); \
+ this->basic_socket<Protocol, StreamSocketService>::close(ec_); \
+ typedef typename Protocol::resolver resolver_type; \
+ typedef typename resolver_type::query resolver_query; \
+ resolver_query query(ASIO_VARIADIC_ARGS(n)); \
+ resolve_and_connect(query); \
+ return !ec_ ? this : 0; \
+ } \
+ /**/
+
+#endif // !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// A separate base class is used to ensure that the io_service is initialised
+// prior to the basic_socket_streambuf's basic_socket base class.
+class socket_streambuf_base
+{
+protected:
+ io_service io_service_;
+};
+
+} // namespace detail
+
+/// Iostream streambuf for a socket.
+template <typename Protocol,
+ typename StreamSocketService = stream_socket_service<Protocol>,
+#if defined(ASIO_HAS_BOOST_DATE_TIME) \
+ || defined(GENERATING_DOCUMENTATION)
+ typename Time = boost::posix_time::ptime,
+ typename TimeTraits = asio::time_traits<Time>,
+ typename TimerService = deadline_timer_service<Time, TimeTraits> >
+#else
+ typename Time = steady_timer::clock_type,
+ typename TimeTraits = steady_timer::traits_type,
+ typename TimerService = steady_timer::service_type>
+#endif
+class basic_socket_streambuf
+ : public std::streambuf,
+ private detail::socket_streambuf_base,
+ public basic_socket<Protocol, StreamSocketService>
+{
+private:
+ // These typedefs are intended keep this class's implementation independent
+ // of whether it's using Boost.DateTime, Boost.Chrono or std::chrono.
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+ typedef TimeTraits traits_helper;
+#else
+ typedef detail::chrono_time_traits<Time, TimeTraits> traits_helper;
+#endif
+
+public:
+ /// The endpoint type.
+ typedef typename Protocol::endpoint endpoint_type;
+
+#if defined(GENERATING_DOCUMENTATION)
+ /// The time type.
+ typedef typename TimeTraits::time_type time_type;
+
+ /// The duration type.
+ typedef typename TimeTraits::duration_type duration_type;
+#else
+ typedef typename traits_helper::time_type time_type;
+ typedef typename traits_helper::duration_type duration_type;
+#endif
+
+ /// Construct a basic_socket_streambuf without establishing a connection.
+ basic_socket_streambuf()
+ : basic_socket<Protocol, StreamSocketService>(
+ this->detail::socket_streambuf_base::io_service_),
+ unbuffered_(false),
+ timer_service_(0),
+ timer_state_(no_timer)
+ {
+ init_buffers();
+ }
+
+ /// Destructor flushes buffered data.
+ virtual ~basic_socket_streambuf()
+ {
+ if (pptr() != pbase())
+ overflow(traits_type::eof());
+
+ destroy_timer();
+ }
+
+ /// Establish a connection.
+ /**
+ * This function establishes a connection to the specified endpoint.
+ *
+ * @return \c this if a connection was successfully established, a null
+ * pointer otherwise.
+ */
+ basic_socket_streambuf<Protocol, StreamSocketService,
+ Time, TimeTraits, TimerService>* connect(
+ const endpoint_type& endpoint)
+ {
+ init_buffers();
+
+ this->basic_socket<Protocol, StreamSocketService>::close(ec_);
+
+ if (timer_state_ == timer_has_expired)
+ {
+ ec_ = asio::error::operation_aborted;
+ return 0;
+ }
+
+ io_handler handler = { this };
+ this->basic_socket<Protocol, StreamSocketService>::async_connect(
+ endpoint, handler);
+
+ ec_ = asio::error::would_block;
+ this->get_service().get_io_service().reset();
+ do this->get_service().get_io_service().run_one();
+ while (ec_ == asio::error::would_block);
+
+ return !ec_ ? this : 0;
+ }
+
+#if defined(GENERATING_DOCUMENTATION)
+ /// Establish a connection.
+ /**
+ * This function automatically establishes a connection based on the supplied
+ * resolver query parameters. The arguments are used to construct a resolver
+ * query object.
+ *
+ * @return \c this if a connection was successfully established, a null
+ * pointer otherwise.
+ */
+ template <typename T1, ..., typename TN>
+ basic_socket_streambuf<Protocol, StreamSocketService>* connect(
+ T1 t1, ..., TN tn);
+#elif defined(ASIO_HAS_VARIADIC_TEMPLATES)
+ template <typename... T>
+ basic_socket_streambuf<Protocol, StreamSocketService,
+ Time, TimeTraits, TimerService>* connect(T... x)
+ {
+ init_buffers();
+ this->basic_socket<Protocol, StreamSocketService>::close(ec_);
+ typedef typename Protocol::resolver resolver_type;
+ typedef typename resolver_type::query resolver_query;
+ resolver_query query(x...);
+ resolve_and_connect(query);
+ return !ec_ ? this : 0;
+ }
+#else
+ ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_CONNECT_DEF)
+#endif
+
+ /// Close the connection.
+ /**
+ * @return \c this if a connection was successfully established, a null
+ * pointer otherwise.
+ */
+ basic_socket_streambuf<Protocol, StreamSocketService,
+ Time, TimeTraits, TimerService>* close()
+ {
+ sync();
+ this->basic_socket<Protocol, StreamSocketService>::close(ec_);
+ if (!ec_)
+ init_buffers();
+ return !ec_ ? this : 0;
+ }
+
+ /// Get the last error associated with the stream buffer.
+ /**
+ * @return An \c error_code corresponding to the last error from the stream
+ * buffer.
+ */
+ const asio::error_code& puberror() const
+ {
+ return error();
+ }
+
+ /// Get the stream buffer's expiry time as an absolute time.
+ /**
+ * @return An absolute time value representing the stream buffer's expiry
+ * time.
+ */
+ time_type expires_at() const
+ {
+ return timer_service_
+ ? timer_service_->expires_at(timer_implementation_)
+ : time_type();
+ }
+
+ /// Set the stream buffer's expiry time as an absolute time.
+ /**
+ * This function sets the expiry time associated with the stream. Stream
+ * operations performed after this time (where the operations cannot be
+ * completed using the internal buffers) will fail with the error
+ * asio::error::operation_aborted.
+ *
+ * @param expiry_time The expiry time to be used for the stream.
+ */
+ void expires_at(const time_type& expiry_time)
+ {
+ construct_timer();
+
+ asio::error_code ec;
+ timer_service_->expires_at(timer_implementation_, expiry_time, ec);
+ asio::detail::throw_error(ec, "expires_at");
+
+ start_timer();
+ }
+
+ /// Get the stream buffer's expiry time relative to now.
+ /**
+ * @return A relative time value representing the stream buffer's expiry time.
+ */
+ duration_type expires_from_now() const
+ {
+ return traits_helper::subtract(expires_at(), traits_helper::now());
+ }
+
+ /// Set the stream buffer's expiry time relative to now.
+ /**
+ * This function sets the expiry time associated with the stream. Stream
+ * operations performed after this time (where the operations cannot be
+ * completed using the internal buffers) will fail with the error
+ * asio::error::operation_aborted.
+ *
+ * @param expiry_time The expiry time to be used for the timer.
+ */
+ void expires_from_now(const duration_type& expiry_time)
+ {
+ construct_timer();
+
+ asio::error_code ec;
+ timer_service_->expires_from_now(timer_implementation_, expiry_time, ec);
+ asio::detail::throw_error(ec, "expires_from_now");
+
+ start_timer();
+ }
+
+protected:
+ int_type underflow()
+ {
+ if (gptr() == egptr())
+ {
+ if (timer_state_ == timer_has_expired)
+ {
+ ec_ = asio::error::operation_aborted;
+ return traits_type::eof();
+ }
+
+ io_handler handler = { this };
+ this->get_service().async_receive(this->get_implementation(),
+ asio::buffer(asio::buffer(get_buffer_) + putback_max),
+ 0, handler);
+
+ ec_ = asio::error::would_block;
+ this->get_service().get_io_service().reset();
+ do this->get_service().get_io_service().run_one();
+ while (ec_ == asio::error::would_block);
+ if (ec_)
+ return traits_type::eof();
+
+ setg(&get_buffer_[0], &get_buffer_[0] + putback_max,
+ &get_buffer_[0] + putback_max + bytes_transferred_);
+ return traits_type::to_int_type(*gptr());
+ }
+ else
+ {
+ return traits_type::eof();
+ }
+ }
+
+ int_type overflow(int_type c)
+ {
+ if (unbuffered_)
+ {
+ if (traits_type::eq_int_type(c, traits_type::eof()))
+ {
+ // Nothing to do.
+ return traits_type::not_eof(c);
+ }
+ else
+ {
+ if (timer_state_ == timer_has_expired)
+ {
+ ec_ = asio::error::operation_aborted;
+ return traits_type::eof();
+ }
+
+ // Send the single character immediately.
+ char_type ch = traits_type::to_char_type(c);
+ io_handler handler = { this };
+ this->get_service().async_send(this->get_implementation(),
+ asio::buffer(&ch, sizeof(char_type)), 0, handler);
+
+ ec_ = asio::error::would_block;
+ this->get_service().get_io_service().reset();
+ do this->get_service().get_io_service().run_one();
+ while (ec_ == asio::error::would_block);
+ if (ec_)
+ return traits_type::eof();
+
+ return c;
+ }
+ }
+ else
+ {
+ // Send all data in the output buffer.
+ asio::const_buffer buffer =
+ asio::buffer(pbase(), pptr() - pbase());
+ while (asio::buffer_size(buffer) > 0)
+ {
+ if (timer_state_ == timer_has_expired)
+ {
+ ec_ = asio::error::operation_aborted;
+ return traits_type::eof();
+ }
+
+ io_handler handler = { this };
+ this->get_service().async_send(this->get_implementation(),
+ asio::buffer(buffer), 0, handler);
+
+ ec_ = asio::error::would_block;
+ this->get_service().get_io_service().reset();
+ do this->get_service().get_io_service().run_one();
+ while (ec_ == asio::error::would_block);
+ if (ec_)
+ return traits_type::eof();
+
+ buffer = buffer + bytes_transferred_;
+ }
+ setp(&put_buffer_[0], &put_buffer_[0] + put_buffer_.size());
+
+ // If the new character is eof then our work here is done.
+ if (traits_type::eq_int_type(c, traits_type::eof()))
+ return traits_type::not_eof(c);
+
+ // Add the new character to the output buffer.
+ *pptr() = traits_type::to_char_type(c);
+ pbump(1);
+ return c;
+ }
+ }
+
+ int sync()
+ {
+ return overflow(traits_type::eof());
+ }
+
+ std::streambuf* setbuf(char_type* s, std::streamsize n)
+ {
+ if (pptr() == pbase() && s == 0 && n == 0)
+ {
+ unbuffered_ = true;
+ setp(0, 0);
+ return this;
+ }
+
+ return 0;
+ }
+
+ /// Get the last error associated with the stream buffer.
+ /**
+ * @return An \c error_code corresponding to the last error from the stream
+ * buffer.
+ */
+ virtual const asio::error_code& error() const
+ {
+ return ec_;
+ }
+
+private:
+ void init_buffers()
+ {
+ setg(&get_buffer_[0],
+ &get_buffer_[0] + putback_max,
+ &get_buffer_[0] + putback_max);
+ if (unbuffered_)
+ setp(0, 0);
+ else
+ setp(&put_buffer_[0], &put_buffer_[0] + put_buffer_.size());
+ }
+
+ template <typename ResolverQuery>
+ void resolve_and_connect(const ResolverQuery& query)
+ {
+ typedef typename Protocol::resolver resolver_type;
+ typedef typename resolver_type::iterator iterator_type;
+ resolver_type resolver(detail::socket_streambuf_base::io_service_);
+ iterator_type i = resolver.resolve(query, ec_);
+ if (!ec_)
+ {
+ iterator_type end;
+ ec_ = asio::error::host_not_found;
+ while (ec_ && i != end)
+ {
+ this->basic_socket<Protocol, StreamSocketService>::close(ec_);
+
+ if (timer_state_ == timer_has_expired)
+ {
+ ec_ = asio::error::operation_aborted;
+ return;
+ }
+
+ io_handler handler = { this };
+ this->basic_socket<Protocol, StreamSocketService>::async_connect(
+ *i, handler);
+
+ ec_ = asio::error::would_block;
+ this->get_service().get_io_service().reset();
+ do this->get_service().get_io_service().run_one();
+ while (ec_ == asio::error::would_block);
+
+ ++i;
+ }
+ }
+ }
+
+ struct io_handler;
+ friend struct io_handler;
+ struct io_handler
+ {
+ basic_socket_streambuf* this_;
+
+ void operator()(const asio::error_code& ec,
+ std::size_t bytes_transferred = 0)
+ {
+ this_->ec_ = ec;
+ this_->bytes_transferred_ = bytes_transferred;
+ }
+ };
+
+ struct timer_handler;
+ friend struct timer_handler;
+ struct timer_handler
+ {
+ basic_socket_streambuf* this_;
+
+ void operator()(const asio::error_code&)
+ {
+ time_type now = traits_helper::now();
+
+ time_type expiry_time = this_->timer_service_->expires_at(
+ this_->timer_implementation_);
+
+ if (traits_helper::less_than(now, expiry_time))
+ {
+ this_->timer_state_ = timer_is_pending;
+ this_->timer_service_->async_wait(this_->timer_implementation_, *this);
+ }
+ else
+ {
+ this_->timer_state_ = timer_has_expired;
+ asio::error_code ec;
+ this_->basic_socket<Protocol, StreamSocketService>::close(ec);
+ }
+ }
+ };
+
+ void construct_timer()
+ {
+ if (timer_service_ == 0)
+ {
+ TimerService& timer_service = use_service<TimerService>(
+ detail::socket_streambuf_base::io_service_);
+ timer_service.construct(timer_implementation_);
+ timer_service_ = &timer_service;
+ }
+ }
+
+ void destroy_timer()
+ {
+ if (timer_service_)
+ timer_service_->destroy(timer_implementation_);
+ }
+
+ void start_timer()
+ {
+ if (timer_state_ != timer_is_pending)
+ {
+ timer_handler handler = { this };
+ handler(asio::error_code());
+ }
+ }
+
+ enum { putback_max = 8 };
+ enum { buffer_size = 512 };
+ asio::detail::array<char, buffer_size> get_buffer_;
+ asio::detail::array<char, buffer_size> put_buffer_;
+ bool unbuffered_;
+ asio::error_code ec_;
+ std::size_t bytes_transferred_;
+ TimerService* timer_service_;
+ typename TimerService::implementation_type timer_implementation_;
+ enum state { no_timer, timer_is_pending, timer_has_expired } timer_state_;
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#if !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+# undef ASIO_PRIVATE_CONNECT_DEF
+#endif // !defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+#endif // !defined(ASIO_NO_IOSTREAM)
+
+#endif // ASIO_BASIC_SOCKET_STREAMBUF_HPP