http://git-wip-us.apache.org/repos/asf/hadoop/blob/76a1e894/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_acceptor.hpp ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_acceptor.hpp b/hadoop-hdfs-project/hadoop-hdfs-native-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-native-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
http://git-wip-us.apache.org/repos/asf/hadoop/blob/76a1e894/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_iostream.hpp ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_iostream.hpp b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_iostream.hpp new file mode 100644 index 0000000..8175402 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_iostream.hpp @@ -0,0 +1,286 @@ +// +// 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 http://git-wip-us.apache.org/repos/asf/hadoop/blob/76a1e894/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_streambuf.hpp ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_streambuf.hpp b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_streambuf.hpp new file mode 100644 index 0000000..c2f368a --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/third_party/asio-1.10.2/include/asio/basic_socket_streambuf.hpp @@ -0,0 +1,567 @@ +// +// 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
