diff options
Diffstat (limited to 'lib/asio/posix')
| -rw-r--r-- | lib/asio/posix/basic_descriptor.hpp | 582 | ||||
| -rw-r--r-- | lib/asio/posix/basic_stream_descriptor.hpp | 362 | ||||
| -rw-r--r-- | lib/asio/posix/descriptor.hpp | 644 | ||||
| -rw-r--r-- | lib/asio/posix/descriptor_base.hpp | 90 | ||||
| -rw-r--r-- | lib/asio/posix/stream_descriptor.hpp | 360 | ||||
| -rw-r--r-- | lib/asio/posix/stream_descriptor_service.hpp | 279 |
6 files changed, 2317 insertions, 0 deletions
diff --git a/lib/asio/posix/basic_descriptor.hpp b/lib/asio/posix/basic_descriptor.hpp new file mode 100644 index 0000000..c15da63 --- /dev/null +++ b/lib/asio/posix/basic_descriptor.hpp @@ -0,0 +1,582 @@ +// +// posix/basic_descriptor.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_POSIX_BASIC_DESCRIPTOR_HPP +#define ASIO_POSIX_BASIC_DESCRIPTOR_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_ENABLE_OLD_SERVICES) + +#if defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \ + || defined(GENERATING_DOCUMENTATION) + +#include "asio/basic_io_object.hpp" +#include "asio/detail/throw_error.hpp" +#include "asio/error.hpp" +#include "asio/posix/descriptor_base.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace posix { + +/// Provides POSIX descriptor functionality. +/** + * The posix::basic_descriptor class template provides the ability to wrap a + * POSIX descriptor. + * + * @par Thread Safety + * @e Distinct @e objects: Safe.@n + * @e Shared @e objects: Unsafe. + */ +template <typename DescriptorService> +class basic_descriptor + : public basic_io_object<DescriptorService>, + public descriptor_base +{ +public: + /// The native representation of a descriptor. + typedef typename DescriptorService::native_handle_type native_handle_type; + + /// A basic_descriptor is always the lowest layer. + typedef basic_descriptor<DescriptorService> lowest_layer_type; + + /// Construct a basic_descriptor without opening it. + /** + * This constructor creates a descriptor without opening it. + * + * @param io_context The io_context object that the descriptor will use to + * dispatch handlers for any asynchronous operations performed on the + * descriptor. + */ + explicit basic_descriptor(asio::io_context& io_context) + : basic_io_object<DescriptorService>(io_context) + { + } + + /// Construct a basic_descriptor on an existing native descriptor. + /** + * This constructor creates a descriptor object to hold an existing native + * descriptor. + * + * @param io_context The io_context object that the descriptor will use to + * dispatch handlers for any asynchronous operations performed on the + * descriptor. + * + * @param native_descriptor A native descriptor. + * + * @throws asio::system_error Thrown on failure. + */ + basic_descriptor(asio::io_context& io_context, + const native_handle_type& native_descriptor) + : basic_io_object<DescriptorService>(io_context) + { + asio::error_code ec; + this->get_service().assign(this->get_implementation(), + native_descriptor, ec); + asio::detail::throw_error(ec, "assign"); + } + +#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + /// Move-construct a basic_descriptor from another. + /** + * This constructor moves a descriptor from one object to another. + * + * @param other The other basic_descriptor 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_descriptor(io_context&) constructor. + */ + basic_descriptor(basic_descriptor&& other) + : basic_io_object<DescriptorService>( + ASIO_MOVE_CAST(basic_descriptor)(other)) + { + } + + /// Move-assign a basic_descriptor from another. + /** + * This assignment operator moves a descriptor from one object to another. + * + * @param other The other basic_descriptor 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_descriptor(io_context&) constructor. + */ + basic_descriptor& operator=(basic_descriptor&& other) + { + basic_io_object<DescriptorService>::operator=( + ASIO_MOVE_CAST(basic_descriptor)(other)); + return *this; + } +#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + + /// Get a reference to the lowest layer. + /** + * This function returns a reference to the lowest layer in a stack of + * layers. Since a basic_descriptor cannot contain any further layers, it + * simply returns a reference to itself. + * + * @return A reference to the lowest layer in the stack of layers. Ownership + * is not transferred to the caller. + */ + lowest_layer_type& lowest_layer() + { + return *this; + } + + /// Get a const reference to the lowest layer. + /** + * This function returns a const reference to the lowest layer in a stack of + * layers. Since a basic_descriptor cannot contain any further layers, it + * simply returns a reference to itself. + * + * @return A const reference to the lowest layer in the stack of layers. + * Ownership is not transferred to the caller. + */ + const lowest_layer_type& lowest_layer() const + { + return *this; + } + + /// Assign an existing native descriptor to the descriptor. + /* + * This function opens the descriptor to hold an existing native descriptor. + * + * @param native_descriptor A native descriptor. + * + * @throws asio::system_error Thrown on failure. + */ + void assign(const native_handle_type& native_descriptor) + { + asio::error_code ec; + this->get_service().assign(this->get_implementation(), + native_descriptor, ec); + asio::detail::throw_error(ec, "assign"); + } + + /// Assign an existing native descriptor to the descriptor. + /* + * This function opens the descriptor to hold an existing native descriptor. + * + * @param native_descriptor A native descriptor. + * + * @param ec Set to indicate what error occurred, if any. + */ + ASIO_SYNC_OP_VOID assign(const native_handle_type& native_descriptor, + asio::error_code& ec) + { + this->get_service().assign( + this->get_implementation(), native_descriptor, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Determine whether the descriptor is open. + bool is_open() const + { + return this->get_service().is_open(this->get_implementation()); + } + + /// Close the descriptor. + /** + * This function is used to close the descriptor. Any asynchronous read or + * write operations will be cancelled immediately, and will complete with the + * asio::error::operation_aborted error. + * + * @throws asio::system_error Thrown on failure. Note that, even if + * the function indicates an error, the underlying descriptor is closed. + */ + void close() + { + asio::error_code ec; + this->get_service().close(this->get_implementation(), ec); + asio::detail::throw_error(ec, "close"); + } + + /// Close the descriptor. + /** + * This function is used to close the descriptor. Any asynchronous read or + * write operations will be cancelled immediately, and will complete with the + * asio::error::operation_aborted error. + * + * @param ec Set to indicate what error occurred, if any. Note that, even if + * the function indicates an error, the underlying descriptor is closed. + */ + ASIO_SYNC_OP_VOID close(asio::error_code& ec) + { + this->get_service().close(this->get_implementation(), ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Get the native descriptor representation. + /** + * This function may be used to obtain the underlying representation of the + * descriptor. This is intended to allow access to native descriptor + * functionality that is not otherwise provided. + */ + native_handle_type native_handle() + { + return this->get_service().native_handle(this->get_implementation()); + } + + /// Release ownership of the native descriptor implementation. + /** + * This function may be used to obtain the underlying representation of the + * descriptor. After calling this function, @c is_open() returns false. The + * caller is responsible for closing the descriptor. + * + * All outstanding asynchronous read or write operations will finish + * immediately, and the handlers for cancelled operations will be passed the + * asio::error::operation_aborted error. + */ + native_handle_type release() + { + return this->get_service().release(this->get_implementation()); + } + + /// Cancel all asynchronous operations associated with the descriptor. + /** + * This function causes all outstanding asynchronous read or write 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 descriptor. + /** + * This function causes all outstanding asynchronous read or write 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_SYNC_OP_VOID cancel(asio::error_code& ec) + { + this->get_service().cancel(this->get_implementation(), ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Perform an IO control command on the descriptor. + /** + * This function is used to execute an IO control command on the descriptor. + * + * @param command The IO control command to be performed on the descriptor. + * + * @throws asio::system_error Thrown on failure. + * + * @sa IoControlCommand @n + * asio::posix::descriptor_base::bytes_readable @n + * asio::posix::descriptor_base::non_blocking_io + * + * @par Example + * Getting the number of bytes ready to read: + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::posix::stream_descriptor::bytes_readable command; + * descriptor.io_control(command); + * std::size_t bytes_readable = command.get(); + * @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 descriptor. + /** + * This function is used to execute an IO control command on the descriptor. + * + * @param command The IO control command to be performed on the descriptor. + * + * @param ec Set to indicate what error occurred, if any. + * + * @sa IoControlCommand @n + * asio::posix::descriptor_base::bytes_readable @n + * asio::posix::descriptor_base::non_blocking_io + * + * @par Example + * Getting the number of bytes ready to read: + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::posix::stream_descriptor::bytes_readable command; + * asio::error_code ec; + * descriptor.io_control(command, ec); + * if (ec) + * { + * // An error occurred. + * } + * std::size_t bytes_readable = command.get(); + * @endcode + */ + template <typename IoControlCommand> + ASIO_SYNC_OP_VOID io_control(IoControlCommand& command, + asio::error_code& ec) + { + this->get_service().io_control(this->get_implementation(), command, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Gets the non-blocking mode of the descriptor. + /** + * @returns @c true if the descriptor'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 descriptor. + /** + * @param mode If @c true, the descriptor'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 descriptor. + /** + * @param mode If @c true, the descriptor'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_SYNC_OP_VOID non_blocking( + bool mode, asio::error_code& ec) + { + this->get_service().non_blocking(this->get_implementation(), mode, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Gets the non-blocking mode of the native descriptor implementation. + /** + * This function is used to retrieve the non-blocking mode of the underlying + * native descriptor. This mode has no effect on the behaviour of the + * descriptor object's synchronous operations. + * + * @returns @c true if the underlying descriptor 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 descriptor object. + * Consequently, the return value may be incorrect if the non-blocking mode + * was set directly on the native descriptor. + */ + bool native_non_blocking() const + { + return this->get_service().native_non_blocking( + this->get_implementation()); + } + + /// Sets the non-blocking mode of the native descriptor implementation. + /** + * This function is used to modify the non-blocking mode of the underlying + * native descriptor. It has no effect on the behaviour of the descriptor + * object's synchronous operations. + * + * @param mode If @c true, the underlying descriptor 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 descriptor implementation. + /** + * This function is used to modify the non-blocking mode of the underlying + * native descriptor. It has no effect on the behaviour of the descriptor + * object's synchronous operations. + * + * @param mode If @c true, the underlying descriptor 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_SYNC_OP_VOID native_non_blocking( + bool mode, asio::error_code& ec) + { + this->get_service().native_non_blocking( + this->get_implementation(), mode, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Wait for the descriptor to become ready to read, ready to write, or to + /// have pending error conditions. + /** + * This function is used to perform a blocking wait for a descriptor to enter + * a ready to read, write or error condition state. + * + * @param w Specifies the desired descriptor state. + * + * @par Example + * Waiting for a descriptor to become readable. + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * descriptor.wait(asio::posix::stream_descriptor::wait_read); + * @endcode + */ + void wait(wait_type w) + { + asio::error_code ec; + this->get_service().wait(this->get_implementation(), w, ec); + asio::detail::throw_error(ec, "wait"); + } + + /// Wait for the descriptor to become ready to read, ready to write, or to + /// have pending error conditions. + /** + * This function is used to perform a blocking wait for a descriptor to enter + * a ready to read, write or error condition state. + * + * @param w Specifies the desired descriptor state. + * + * @param ec Set to indicate what error occurred, if any. + * + * @par Example + * Waiting for a descriptor to become readable. + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::error_code ec; + * descriptor.wait(asio::posix::stream_descriptor::wait_read, ec); + * @endcode + */ + ASIO_SYNC_OP_VOID wait(wait_type w, asio::error_code& ec) + { + this->get_service().wait(this->get_implementation(), w, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Asynchronously wait for the descriptor to become ready to read, ready to + /// write, or to have pending error conditions. + /** + * This function is used to perform an asynchronous wait for a descriptor to + * enter a ready to read, write or error condition state. + * + * @param w Specifies the desired descriptor state. + * + * @param handler The handler to be called when the wait 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_context::post(). + * + * @par Example + * @code + * void wait_handler(const asio::error_code& error) + * { + * if (!error) + * { + * // Wait succeeded. + * } + * } + * + * ... + * + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * descriptor.async_wait( + * asio::posix::stream_descriptor::wait_read, + * wait_handler); + * @endcode + */ + template <typename WaitHandler> + ASIO_INITFN_RESULT_TYPE(WaitHandler, + void (asio::error_code)) + async_wait(wait_type w, ASIO_MOVE_ARG(WaitHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WaitHandler. + ASIO_WAIT_HANDLER_CHECK(WaitHandler, handler) type_check; + + return this->get_service().async_wait(this->get_implementation(), + w, ASIO_MOVE_CAST(WaitHandler)(handler)); + } + +protected: + /// Protected destructor to prevent deletion through this type. + ~basic_descriptor() + { + } +}; + +} // namespace posix +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) + // || defined(GENERATING_DOCUMENTATION) + +#endif // defined(ASIO_ENABLE_OLD_SERVICES) + +#endif // ASIO_POSIX_BASIC_DESCRIPTOR_HPP diff --git a/lib/asio/posix/basic_stream_descriptor.hpp b/lib/asio/posix/basic_stream_descriptor.hpp new file mode 100644 index 0000000..acd5cb6 --- /dev/null +++ b/lib/asio/posix/basic_stream_descriptor.hpp @@ -0,0 +1,362 @@ +// +// posix/basic_stream_descriptor.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_POSIX_BASIC_STREAM_DESCRIPTOR_HPP +#define ASIO_POSIX_BASIC_STREAM_DESCRIPTOR_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_ENABLE_OLD_SERVICES) + +#if defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \ + || defined(GENERATING_DOCUMENTATION) + +#include <cstddef> +#include "asio/detail/handler_type_requirements.hpp" +#include "asio/detail/throw_error.hpp" +#include "asio/error.hpp" +#include "asio/posix/basic_descriptor.hpp" +#include "asio/posix/stream_descriptor_service.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace posix { + +/// Provides stream-oriented descriptor functionality. +/** + * The posix::basic_stream_descriptor class template provides asynchronous and + * blocking stream-oriented descriptor functionality. + * + * @par Thread Safety + * @e Distinct @e objects: Safe.@n + * @e Shared @e objects: Unsafe. + * + * @par Concepts: + * AsyncReadStream, AsyncWriteStream, Stream, SyncReadStream, SyncWriteStream. + */ +template <typename StreamDescriptorService = stream_descriptor_service> +class basic_stream_descriptor + : public basic_descriptor<StreamDescriptorService> +{ +public: + /// The native representation of a descriptor. + typedef typename StreamDescriptorService::native_handle_type + native_handle_type; + + /// Construct a basic_stream_descriptor without opening it. + /** + * This constructor creates a stream descriptor without opening it. The + * descriptor needs to be opened and then connected or accepted before data + * can be sent or received on it. + * + * @param io_context The io_context object that the stream descriptor will + * use to dispatch handlers for any asynchronous operations performed on the + * descriptor. + */ + explicit basic_stream_descriptor(asio::io_context& io_context) + : basic_descriptor<StreamDescriptorService>(io_context) + { + } + + /// Construct a basic_stream_descriptor on an existing native descriptor. + /** + * This constructor creates a stream descriptor object to hold an existing + * native descriptor. + * + * @param io_context The io_context object that the stream descriptor will + * use to dispatch handlers for any asynchronous operations performed on the + * descriptor. + * + * @param native_descriptor The new underlying descriptor implementation. + * + * @throws asio::system_error Thrown on failure. + */ + basic_stream_descriptor(asio::io_context& io_context, + const native_handle_type& native_descriptor) + : basic_descriptor<StreamDescriptorService>(io_context, native_descriptor) + { + } + +#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + /// Move-construct a basic_stream_descriptor from another. + /** + * This constructor moves a stream descriptor from one object to another. + * + * @param other The other basic_stream_descriptor 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_stream_descriptor(io_context&) constructor. + */ + basic_stream_descriptor(basic_stream_descriptor&& other) + : basic_descriptor<StreamDescriptorService>( + ASIO_MOVE_CAST(basic_stream_descriptor)(other)) + { + } + + /// Move-assign a basic_stream_descriptor from another. + /** + * This assignment operator moves a stream descriptor from one object to + * another. + * + * @param other The other basic_stream_descriptor 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_stream_descriptor(io_context&) constructor. + */ + basic_stream_descriptor& operator=(basic_stream_descriptor&& other) + { + basic_descriptor<StreamDescriptorService>::operator=( + ASIO_MOVE_CAST(basic_stream_descriptor)(other)); + return *this; + } +#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + + /// Write some data to the descriptor. + /** + * This function is used to write data to the stream descriptor. The function + * call will block until one or more bytes of the data has been written + * successfully, or until an error occurs. + * + * @param buffers One or more data buffers to be written to the descriptor. + * + * @returns The number of bytes written. + * + * @throws asio::system_error Thrown on failure. An error code of + * asio::error::eof indicates that the connection was closed by the + * peer. + * + * @note The write_some operation may not transmit all of the data to the + * peer. Consider using the @ref write function if you need to ensure that + * all data is written before the blocking operation completes. + * + * @par Example + * To write a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.write_some(asio::buffer(data, size)); + * @endcode + * See the @ref buffer documentation for information on writing multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence> + std::size_t write_some(const ConstBufferSequence& buffers) + { + asio::error_code ec; + std::size_t s = this->get_service().write_some( + this->get_implementation(), buffers, ec); + asio::detail::throw_error(ec, "write_some"); + return s; + } + + /// Write some data to the descriptor. + /** + * This function is used to write data to the stream descriptor. The function + * call will block until one or more bytes of the data has been written + * successfully, or until an error occurs. + * + * @param buffers One or more data buffers to be written to the descriptor. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes written. Returns 0 if an error occurred. + * + * @note The write_some operation may not transmit all of the data to the + * peer. Consider using the @ref write function if you need to ensure that + * all data is written before the blocking operation completes. + */ + template <typename ConstBufferSequence> + std::size_t write_some(const ConstBufferSequence& buffers, + asio::error_code& ec) + { + return this->get_service().write_some( + this->get_implementation(), buffers, ec); + } + + /// Start an asynchronous write. + /** + * This function is used to asynchronously write data to the stream + * descriptor. The function call always returns immediately. + * + * @param buffers One or more data buffers to be written to the descriptor. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param handler The handler to be called when the write 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. + * std::size_t bytes_transferred // Number of bytes written. + * ); @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_context::post(). + * + * @note The write operation may not transmit all of the data to the peer. + * Consider using the @ref async_write function if you need to ensure that all + * data is written before the asynchronous operation completes. + * + * @par Example + * To write a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.async_write_some(asio::buffer(data, size), handler); + * @endcode + * See the @ref buffer documentation for information on writing multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence, typename WriteHandler> + ASIO_INITFN_RESULT_TYPE(WriteHandler, + void (asio::error_code, std::size_t)) + async_write_some(const ConstBufferSequence& buffers, + ASIO_MOVE_ARG(WriteHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WriteHandler. + ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check; + + return this->get_service().async_write_some(this->get_implementation(), + buffers, ASIO_MOVE_CAST(WriteHandler)(handler)); + } + + /// Read some data from the descriptor. + /** + * This function is used to read data from the stream descriptor. The function + * call will block until one or more bytes of data has been read successfully, + * or until an error occurs. + * + * @param buffers One or more buffers into which the data will be read. + * + * @returns The number of bytes read. + * + * @throws asio::system_error Thrown on failure. An error code of + * asio::error::eof indicates that the connection was closed by the + * peer. + * + * @note The read_some operation may not read all of the requested number of + * bytes. Consider using the @ref read function if you need to ensure that + * the requested amount of data is read before the blocking operation + * completes. + * + * @par Example + * To read into a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.read_some(asio::buffer(data, size)); + * @endcode + * See the @ref buffer documentation for information on reading into multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence> + std::size_t read_some(const MutableBufferSequence& buffers) + { + asio::error_code ec; + std::size_t s = this->get_service().read_some( + this->get_implementation(), buffers, ec); + asio::detail::throw_error(ec, "read_some"); + return s; + } + + /// Read some data from the descriptor. + /** + * This function is used to read data from the stream descriptor. The function + * call will block until one or more bytes of data has been read successfully, + * or until an error occurs. + * + * @param buffers One or more buffers into which the data will be read. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes read. Returns 0 if an error occurred. + * + * @note The read_some operation may not read all of the requested number of + * bytes. Consider using the @ref read function if you need to ensure that + * the requested amount of data is read before the blocking operation + * completes. + */ + template <typename MutableBufferSequence> + std::size_t read_some(const MutableBufferSequence& buffers, + asio::error_code& ec) + { + return this->get_service().read_some( + this->get_implementation(), buffers, ec); + } + + /// Start an asynchronous read. + /** + * This function is used to asynchronously read data from the stream + * descriptor. The function call always returns immediately. + * + * @param buffers One or more buffers into which the data will be read. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param handler The handler to be called when the read 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. + * std::size_t bytes_transferred // Number of bytes read. + * ); @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_context::post(). + * + * @note The read operation may not read all of the requested number of bytes. + * Consider using the @ref async_read function if you need to ensure that the + * requested amount of data is read before the asynchronous operation + * completes. + * + * @par Example + * To read into a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.async_read_some(asio::buffer(data, size), handler); + * @endcode + * See the @ref buffer documentation for information on reading into multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence, typename ReadHandler> + ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (asio::error_code, std::size_t)) + async_read_some(const MutableBufferSequence& buffers, + ASIO_MOVE_ARG(ReadHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + return this->get_service().async_read_some(this->get_implementation(), + buffers, ASIO_MOVE_CAST(ReadHandler)(handler)); + } +}; + +} // namespace posix +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) + // || defined(GENERATING_DOCUMENTATION) + +#endif // defined(ASIO_ENABLE_OLD_SERVICES) + +#endif // ASIO_POSIX_BASIC_STREAM_DESCRIPTOR_HPP diff --git a/lib/asio/posix/descriptor.hpp b/lib/asio/posix/descriptor.hpp new file mode 100644 index 0000000..d0cee1a --- /dev/null +++ b/lib/asio/posix/descriptor.hpp @@ -0,0 +1,644 @@ +// +// posix/descriptor.hpp +// ~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_POSIX_DESCRIPTOR_HPP +#define ASIO_POSIX_DESCRIPTOR_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_ENABLE_OLD_SERVICES) + +#if defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \ + || defined(GENERATING_DOCUMENTATION) + +#include "asio/async_result.hpp" +#include "asio/basic_io_object.hpp" +#include "asio/detail/handler_type_requirements.hpp" +#include "asio/detail/reactive_descriptor_service.hpp" +#include "asio/detail/throw_error.hpp" +#include "asio/error.hpp" +#include "asio/io_context.hpp" +#include "asio/posix/descriptor_base.hpp" + +#if defined(ASIO_HAS_MOVE) +# include <utility> +#endif // defined(ASIO_HAS_MOVE) + +#define ASIO_SVC_T asio::detail::reactive_descriptor_service + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace posix { + +/// Provides POSIX descriptor functionality. +/** + * The posix::descriptor class template provides the ability to wrap a + * POSIX descriptor. + * + * @par Thread Safety + * @e Distinct @e objects: Safe.@n + * @e Shared @e objects: Unsafe. + */ +class descriptor + : ASIO_SVC_ACCESS basic_io_object<ASIO_SVC_T>, + public descriptor_base +{ +public: + /// The type of the executor associated with the object. + typedef io_context::executor_type executor_type; + + /// The native representation of a descriptor. +#if defined(GENERATING_DOCUMENTATION) + typedef implementation_defined native_handle_type; +#else + typedef ASIO_SVC_T::native_handle_type native_handle_type; +#endif + + /// A descriptor is always the lowest layer. + typedef descriptor lowest_layer_type; + + /// Construct a descriptor without opening it. + /** + * This constructor creates a descriptor without opening it. + * + * @param io_context The io_context object that the descriptor will use to + * dispatch handlers for any asynchronous operations performed on the + * descriptor. + */ + explicit descriptor(asio::io_context& io_context) + : basic_io_object<ASIO_SVC_T>(io_context) + { + } + + /// Construct a descriptor on an existing native descriptor. + /** + * This constructor creates a descriptor object to hold an existing native + * descriptor. + * + * @param io_context The io_context object that the descriptor will use to + * dispatch handlers for any asynchronous operations performed on the + * descriptor. + * + * @param native_descriptor A native descriptor. + * + * @throws asio::system_error Thrown on failure. + */ + descriptor(asio::io_context& io_context, + const native_handle_type& native_descriptor) + : basic_io_object<ASIO_SVC_T>(io_context) + { + asio::error_code ec; + this->get_service().assign(this->get_implementation(), + native_descriptor, ec); + asio::detail::throw_error(ec, "assign"); + } + +#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + /// Move-construct a descriptor from another. + /** + * This constructor moves a descriptor from one object to another. + * + * @param other The other descriptor 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 descriptor(io_context&) constructor. + */ + descriptor(descriptor&& other) + : basic_io_object<ASIO_SVC_T>(std::move(other)) + { + } + + /// Move-assign a descriptor from another. + /** + * This assignment operator moves a descriptor from one object to another. + * + * @param other The other descriptor 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 descriptor(io_context&) constructor. + */ + descriptor& operator=(descriptor&& other) + { + basic_io_object<ASIO_SVC_T>::operator=(std::move(other)); + return *this; + } +#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + +#if !defined(ASIO_NO_DEPRECATED) + /// (Deprecated: Use get_executor().) Get the io_context associated with the + /// object. + /** + * This function may be used to obtain the io_context object that the I/O + * object uses to dispatch handlers for asynchronous operations. + * + * @return A reference to the io_context object that the I/O object will use + * to dispatch handlers. Ownership is not transferred to the caller. + */ + asio::io_context& get_io_context() + { + return basic_io_object<ASIO_SVC_T>::get_io_context(); + } + + /// (Deprecated: Use get_executor().) Get the io_context associated with the + /// object. + /** + * This function may be used to obtain the io_context object that the I/O + * object uses to dispatch handlers for asynchronous operations. + * + * @return A reference to the io_context object that the I/O object will use + * to dispatch handlers. Ownership is not transferred to the caller. + */ + asio::io_context& get_io_service() + { + return basic_io_object<ASIO_SVC_T>::get_io_service(); + } +#endif // !defined(ASIO_NO_DEPRECATED) + + /// Get the executor associated with the object. + executor_type get_executor() ASIO_NOEXCEPT + { + return basic_io_object<ASIO_SVC_T>::get_executor(); + } + + /// Get a reference to the lowest layer. + /** + * This function returns a reference to the lowest layer in a stack of + * layers. Since a descriptor cannot contain any further layers, it + * simply returns a reference to itself. + * + * @return A reference to the lowest layer in the stack of layers. Ownership + * is not transferred to the caller. + */ + lowest_layer_type& lowest_layer() + { + return *this; + } + + /// Get a const reference to the lowest layer. + /** + * This function returns a const reference to the lowest layer in a stack of + * layers. Since a descriptor cannot contain any further layers, it + * simply returns a reference to itself. + * + * @return A const reference to the lowest layer in the stack of layers. + * Ownership is not transferred to the caller. + */ + const lowest_layer_type& lowest_layer() const + { + return *this; + } + + /// Assign an existing native descriptor to the descriptor. + /* + * This function opens the descriptor to hold an existing native descriptor. + * + * @param native_descriptor A native descriptor. + * + * @throws asio::system_error Thrown on failure. + */ + void assign(const native_handle_type& native_descriptor) + { + asio::error_code ec; + this->get_service().assign(this->get_implementation(), + native_descriptor, ec); + asio::detail::throw_error(ec, "assign"); + } + + /// Assign an existing native descriptor to the descriptor. + /* + * This function opens the descriptor to hold an existing native descriptor. + * + * @param native_descriptor A native descriptor. + * + * @param ec Set to indicate what error occurred, if any. + */ + ASIO_SYNC_OP_VOID assign(const native_handle_type& native_descriptor, + asio::error_code& ec) + { + this->get_service().assign( + this->get_implementation(), native_descriptor, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Determine whether the descriptor is open. + bool is_open() const + { + return this->get_service().is_open(this->get_implementation()); + } + + /// Close the descriptor. + /** + * This function is used to close the descriptor. Any asynchronous read or + * write operations will be cancelled immediately, and will complete with the + * asio::error::operation_aborted error. + * + * @throws asio::system_error Thrown on failure. Note that, even if + * the function indicates an error, the underlying descriptor is closed. + */ + void close() + { + asio::error_code ec; + this->get_service().close(this->get_implementation(), ec); + asio::detail::throw_error(ec, "close"); + } + + /// Close the descriptor. + /** + * This function is used to close the descriptor. Any asynchronous read or + * write operations will be cancelled immediately, and will complete with the + * asio::error::operation_aborted error. + * + * @param ec Set to indicate what error occurred, if any. Note that, even if + * the function indicates an error, the underlying descriptor is closed. + */ + ASIO_SYNC_OP_VOID close(asio::error_code& ec) + { + this->get_service().close(this->get_implementation(), ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Get the native descriptor representation. + /** + * This function may be used to obtain the underlying representation of the + * descriptor. This is intended to allow access to native descriptor + * functionality that is not otherwise provided. + */ + native_handle_type native_handle() + { + return this->get_service().native_handle(this->get_implementation()); + } + + /// Release ownership of the native descriptor implementation. + /** + * This function may be used to obtain the underlying representation of the + * descriptor. After calling this function, @c is_open() returns false. The + * caller is responsible for closing the descriptor. + * + * All outstanding asynchronous read or write operations will finish + * immediately, and the handlers for cancelled operations will be passed the + * asio::error::operation_aborted error. + */ + native_handle_type release() + { + return this->get_service().release(this->get_implementation()); + } + + /// Cancel all asynchronous operations associated with the descriptor. + /** + * This function causes all outstanding asynchronous read or write 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 descriptor. + /** + * This function causes all outstanding asynchronous read or write 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_SYNC_OP_VOID cancel(asio::error_code& ec) + { + this->get_service().cancel(this->get_implementation(), ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Perform an IO control command on the descriptor. + /** + * This function is used to execute an IO control command on the descriptor. + * + * @param command The IO control command to be performed on the descriptor. + * + * @throws asio::system_error Thrown on failure. + * + * @sa IoControlCommand @n + * asio::posix::descriptor_base::bytes_readable @n + * asio::posix::descriptor_base::non_blocking_io + * + * @par Example + * Getting the number of bytes ready to read: + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::posix::stream_descriptor::bytes_readable command; + * descriptor.io_control(command); + * std::size_t bytes_readable = command.get(); + * @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 descriptor. + /** + * This function is used to execute an IO control command on the descriptor. + * + * @param command The IO control command to be performed on the descriptor. + * + * @param ec Set to indicate what error occurred, if any. + * + * @sa IoControlCommand @n + * asio::posix::descriptor_base::bytes_readable @n + * asio::posix::descriptor_base::non_blocking_io + * + * @par Example + * Getting the number of bytes ready to read: + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::posix::stream_descriptor::bytes_readable command; + * asio::error_code ec; + * descriptor.io_control(command, ec); + * if (ec) + * { + * // An error occurred. + * } + * std::size_t bytes_readable = command.get(); + * @endcode + */ + template <typename IoControlCommand> + ASIO_SYNC_OP_VOID io_control(IoControlCommand& command, + asio::error_code& ec) + { + this->get_service().io_control(this->get_implementation(), command, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Gets the non-blocking mode of the descriptor. + /** + * @returns @c true if the descriptor'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 descriptor. + /** + * @param mode If @c true, the descriptor'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 descriptor. + /** + * @param mode If @c true, the descriptor'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_SYNC_OP_VOID non_blocking( + bool mode, asio::error_code& ec) + { + this->get_service().non_blocking(this->get_implementation(), mode, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Gets the non-blocking mode of the native descriptor implementation. + /** + * This function is used to retrieve the non-blocking mode of the underlying + * native descriptor. This mode has no effect on the behaviour of the + * descriptor object's synchronous operations. + * + * @returns @c true if the underlying descriptor 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 descriptor object. + * Consequently, the return value may be incorrect if the non-blocking mode + * was set directly on the native descriptor. + */ + bool native_non_blocking() const + { + return this->get_service().native_non_blocking( + this->get_implementation()); + } + + /// Sets the non-blocking mode of the native descriptor implementation. + /** + * This function is used to modify the non-blocking mode of the underlying + * native descriptor. It has no effect on the behaviour of the descriptor + * object's synchronous operations. + * + * @param mode If @c true, the underlying descriptor 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 descriptor implementation. + /** + * This function is used to modify the non-blocking mode of the underlying + * native descriptor. It has no effect on the behaviour of the descriptor + * object's synchronous operations. + * + * @param mode If @c true, the underlying descriptor 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_SYNC_OP_VOID native_non_blocking( + bool mode, asio::error_code& ec) + { + this->get_service().native_non_blocking( + this->get_implementation(), mode, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Wait for the descriptor to become ready to read, ready to write, or to + /// have pending error conditions. + /** + * This function is used to perform a blocking wait for a descriptor to enter + * a ready to read, write or error condition state. + * + * @param w Specifies the desired descriptor state. + * + * @par Example + * Waiting for a descriptor to become readable. + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * descriptor.wait(asio::posix::stream_descriptor::wait_read); + * @endcode + */ + void wait(wait_type w) + { + asio::error_code ec; + this->get_service().wait(this->get_implementation(), w, ec); + asio::detail::throw_error(ec, "wait"); + } + + /// Wait for the descriptor to become ready to read, ready to write, or to + /// have pending error conditions. + /** + * This function is used to perform a blocking wait for a descriptor to enter + * a ready to read, write or error condition state. + * + * @param w Specifies the desired descriptor state. + * + * @param ec Set to indicate what error occurred, if any. + * + * @par Example + * Waiting for a descriptor to become readable. + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::error_code ec; + * descriptor.wait(asio::posix::stream_descriptor::wait_read, ec); + * @endcode + */ + ASIO_SYNC_OP_VOID wait(wait_type w, asio::error_code& ec) + { + this->get_service().wait(this->get_implementation(), w, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Asynchronously wait for the descriptor to become ready to read, ready to + /// write, or to have pending error conditions. + /** + * This function is used to perform an asynchronous wait for a descriptor to + * enter a ready to read, write or error condition state. + * + * @param w Specifies the desired descriptor state. + * + * @param handler The handler to be called when the wait 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_context::post(). + * + * @par Example + * @code + * void wait_handler(const asio::error_code& error) + * { + * if (!error) + * { + * // Wait succeeded. + * } + * } + * + * ... + * + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * descriptor.async_wait( + * asio::posix::stream_descriptor::wait_read, + * wait_handler); + * @endcode + */ + template <typename WaitHandler> + ASIO_INITFN_RESULT_TYPE(WaitHandler, + void (asio::error_code)) + async_wait(wait_type w, ASIO_MOVE_ARG(WaitHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WaitHandler. + ASIO_WAIT_HANDLER_CHECK(WaitHandler, handler) type_check; + + async_completion<WaitHandler, + void (asio::error_code)> init(handler); + + this->get_service().async_wait( + this->get_implementation(), w, init.completion_handler); + + return init.result.get(); + } + +protected: + /// Protected destructor to prevent deletion through this type. + /** + * This function destroys the descriptor, cancelling any outstanding + * asynchronous wait operations associated with the descriptor as if by + * calling @c cancel. + */ + ~descriptor() + { + } +}; + +} // namespace posix +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#undef ASIO_SVC_T + +#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) + // || defined(GENERATING_DOCUMENTATION) + +#endif // !defined(ASIO_ENABLE_OLD_SERVICES) + +#endif // ASIO_POSIX_DESCRIPTOR_HPP diff --git a/lib/asio/posix/descriptor_base.hpp b/lib/asio/posix/descriptor_base.hpp new file mode 100644 index 0000000..4aac04f --- /dev/null +++ b/lib/asio/posix/descriptor_base.hpp @@ -0,0 +1,90 @@ +// +// posix/descriptor_base.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_POSIX_DESCRIPTOR_BASE_HPP +#define ASIO_POSIX_DESCRIPTOR_BASE_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_HAS_POSIX_STREAM_DESCRIPTOR) \ + || defined(GENERATING_DOCUMENTATION) + +#include "asio/detail/io_control.hpp" +#include "asio/detail/socket_option.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace posix { + +/// The descriptor_base class is used as a base for the descriptor class as a +/// place to define the associated IO control commands. +class descriptor_base +{ +public: + /// Wait types. + /** + * For use with descriptor::wait() and descriptor::async_wait(). + */ + enum wait_type + { + /// Wait for a descriptor to become ready to read. + wait_read, + + /// Wait for a descriptor to become ready to write. + wait_write, + + /// Wait for a descriptor to have error conditions pending. + wait_error + }; + + /// IO control command to get the amount of data that can be read without + /// blocking. + /** + * Implements the FIONREAD IO control command. + * + * @par Example + * @code + * asio::posix::stream_descriptor descriptor(io_context); + * ... + * asio::descriptor_base::bytes_readable command(true); + * descriptor.io_control(command); + * std::size_t bytes_readable = command.get(); + * @endcode + * + * @par Concepts: + * IoControlCommand. + */ +#if defined(GENERATING_DOCUMENTATION) + typedef implementation_defined bytes_readable; +#else + typedef asio::detail::io_control::bytes_readable bytes_readable; +#endif + +protected: + /// Protected destructor to prevent deletion through this type. + ~descriptor_base() + { + } +}; + +} // namespace posix +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) + // || defined(GENERATING_DOCUMENTATION) + +#endif // ASIO_POSIX_DESCRIPTOR_BASE_HPP diff --git a/lib/asio/posix/stream_descriptor.hpp b/lib/asio/posix/stream_descriptor.hpp new file mode 100644 index 0000000..abb426a --- /dev/null +++ b/lib/asio/posix/stream_descriptor.hpp @@ -0,0 +1,360 @@ +// +// posix/stream_descriptor.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_POSIX_STREAM_DESCRIPTOR_HPP +#define ASIO_POSIX_STREAM_DESCRIPTOR_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include "asio/detail/config.hpp" +#include "asio/posix/descriptor.hpp" + +#if defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \ + || defined(GENERATING_DOCUMENTATION) + +#if defined(ASIO_ENABLE_OLD_SERVICES) +# include "asio/posix/basic_stream_descriptor.hpp" +#endif // defined(ASIO_ENABLE_OLD_SERVICES) + +namespace asio { +namespace posix { + +#if defined(ASIO_ENABLE_OLD_SERVICES) +// Typedef for the typical usage of a stream-oriented descriptor. +typedef basic_stream_descriptor<> stream_descriptor; +#else // defined(ASIO_ENABLE_OLD_SERVICES) +/// Provides stream-oriented descriptor functionality. +/** + * The posix::stream_descriptor class template provides asynchronous and + * blocking stream-oriented descriptor functionality. + * + * @par Thread Safety + * @e Distinct @e objects: Safe.@n + * @e Shared @e objects: Unsafe. + * + * @par Concepts: + * AsyncReadStream, AsyncWriteStream, Stream, SyncReadStream, SyncWriteStream. + */ +class stream_descriptor + : public descriptor +{ +public: + /// Construct a stream_descriptor without opening it. + /** + * This constructor creates a stream descriptor without opening it. The + * descriptor needs to be opened and then connected or accepted before data + * can be sent or received on it. + * + * @param io_context The io_context object that the stream descriptor will + * use to dispatch handlers for any asynchronous operations performed on the + * descriptor. + */ + explicit stream_descriptor(asio::io_context& io_context) + : descriptor(io_context) + { + } + + /// Construct a stream_descriptor on an existing native descriptor. + /** + * This constructor creates a stream descriptor object to hold an existing + * native descriptor. + * + * @param io_context The io_context object that the stream descriptor will + * use to dispatch handlers for any asynchronous operations performed on the + * descriptor. + * + * @param native_descriptor The new underlying descriptor implementation. + * + * @throws asio::system_error Thrown on failure. + */ + stream_descriptor(asio::io_context& io_context, + const native_handle_type& native_descriptor) + : descriptor(io_context, native_descriptor) + { + } + +#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + /// Move-construct a stream_descriptor from another. + /** + * This constructor moves a stream descriptor from one object to another. + * + * @param other The other stream_descriptor 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 stream_descriptor(io_context&) constructor. + */ + stream_descriptor(stream_descriptor&& other) + : descriptor(std::move(other)) + { + } + + /// Move-assign a stream_descriptor from another. + /** + * This assignment operator moves a stream descriptor from one object to + * another. + * + * @param other The other stream_descriptor 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 stream_descriptor(io_context&) constructor. + */ + stream_descriptor& operator=(stream_descriptor&& other) + { + descriptor::operator=(std::move(other)); + return *this; + } +#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + + /// Write some data to the descriptor. + /** + * This function is used to write data to the stream descriptor. The function + * call will block until one or more bytes of the data has been written + * successfully, or until an error occurs. + * + * @param buffers One or more data buffers to be written to the descriptor. + * + * @returns The number of bytes written. + * + * @throws asio::system_error Thrown on failure. An error code of + * asio::error::eof indicates that the connection was closed by the + * peer. + * + * @note The write_some operation may not transmit all of the data to the + * peer. Consider using the @ref write function if you need to ensure that + * all data is written before the blocking operation completes. + * + * @par Example + * To write a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.write_some(asio::buffer(data, size)); + * @endcode + * See the @ref buffer documentation for information on writing multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence> + std::size_t write_some(const ConstBufferSequence& buffers) + { + asio::error_code ec; + std::size_t s = this->get_service().write_some( + this->get_implementation(), buffers, ec); + asio::detail::throw_error(ec, "write_some"); + return s; + } + + /// Write some data to the descriptor. + /** + * This function is used to write data to the stream descriptor. The function + * call will block until one or more bytes of the data has been written + * successfully, or until an error occurs. + * + * @param buffers One or more data buffers to be written to the descriptor. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes written. Returns 0 if an error occurred. + * + * @note The write_some operation may not transmit all of the data to the + * peer. Consider using the @ref write function if you need to ensure that + * all data is written before the blocking operation completes. + */ + template <typename ConstBufferSequence> + std::size_t write_some(const ConstBufferSequence& buffers, + asio::error_code& ec) + { + return this->get_service().write_some( + this->get_implementation(), buffers, ec); + } + + /// Start an asynchronous write. + /** + * This function is used to asynchronously write data to the stream + * descriptor. The function call always returns immediately. + * + * @param buffers One or more data buffers to be written to the descriptor. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param handler The handler to be called when the write 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. + * std::size_t bytes_transferred // Number of bytes written. + * ); @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_context::post(). + * + * @note The write operation may not transmit all of the data to the peer. + * Consider using the @ref async_write function if you need to ensure that all + * data is written before the asynchronous operation completes. + * + * @par Example + * To write a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.async_write_some(asio::buffer(data, size), handler); + * @endcode + * See the @ref buffer documentation for information on writing multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence, typename WriteHandler> + ASIO_INITFN_RESULT_TYPE(WriteHandler, + void (asio::error_code, std::size_t)) + async_write_some(const ConstBufferSequence& buffers, + ASIO_MOVE_ARG(WriteHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WriteHandler. + ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check; + + asio::async_completion<WriteHandler, + void (asio::error_code, std::size_t)> init(handler); + + this->get_service().async_write_some( + this->get_implementation(), buffers, init.completion_handler); + + return init.result.get(); + } + + /// Read some data from the descriptor. + /** + * This function is used to read data from the stream descriptor. The function + * call will block until one or more bytes of data has been read successfully, + * or until an error occurs. + * + * @param buffers One or more buffers into which the data will be read. + * + * @returns The number of bytes read. + * + * @throws asio::system_error Thrown on failure. An error code of + * asio::error::eof indicates that the connection was closed by the + * peer. + * + * @note The read_some operation may not read all of the requested number of + * bytes. Consider using the @ref read function if you need to ensure that + * the requested amount of data is read before the blocking operation + * completes. + * + * @par Example + * To read into a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.read_some(asio::buffer(data, size)); + * @endcode + * See the @ref buffer documentation for information on reading into multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence> + std::size_t read_some(const MutableBufferSequence& buffers) + { + asio::error_code ec; + std::size_t s = this->get_service().read_some( + this->get_implementation(), buffers, ec); + asio::detail::throw_error(ec, "read_some"); + return s; + } + + /// Read some data from the descriptor. + /** + * This function is used to read data from the stream descriptor. The function + * call will block until one or more bytes of data has been read successfully, + * or until an error occurs. + * + * @param buffers One or more buffers into which the data will be read. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes read. Returns 0 if an error occurred. + * + * @note The read_some operation may not read all of the requested number of + * bytes. Consider using the @ref read function if you need to ensure that + * the requested amount of data is read before the blocking operation + * completes. + */ + template <typename MutableBufferSequence> + std::size_t read_some(const MutableBufferSequence& buffers, + asio::error_code& ec) + { + return this->get_service().read_some( + this->get_implementation(), buffers, ec); + } + + /// Start an asynchronous read. + /** + * This function is used to asynchronously read data from the stream + * descriptor. The function call always returns immediately. + * + * @param buffers One or more buffers into which the data will be read. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param handler The handler to be called when the read 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. + * std::size_t bytes_transferred // Number of bytes read. + * ); @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_context::post(). + * + * @note The read operation may not read all of the requested number of bytes. + * Consider using the @ref async_read function if you need to ensure that the + * requested amount of data is read before the asynchronous operation + * completes. + * + * @par Example + * To read into a single data buffer use the @ref buffer function as follows: + * @code + * descriptor.async_read_some(asio::buffer(data, size), handler); + * @endcode + * See the @ref buffer documentation for information on reading into multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence, typename ReadHandler> + ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (asio::error_code, std::size_t)) + async_read_some(const MutableBufferSequence& buffers, + ASIO_MOVE_ARG(ReadHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + asio::async_completion<ReadHandler, + void (asio::error_code, std::size_t)> init(handler); + + this->get_service().async_read_some( + this->get_implementation(), buffers, init.completion_handler); + + return init.result.get(); + } +}; +#endif // defined(ASIO_ENABLE_OLD_SERVICES) + +} // namespace posix +} // namespace asio + +#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) + // || defined(GENERATING_DOCUMENTATION) + +#endif // ASIO_POSIX_STREAM_DESCRIPTOR_HPP diff --git a/lib/asio/posix/stream_descriptor_service.hpp b/lib/asio/posix/stream_descriptor_service.hpp new file mode 100644 index 0000000..4ffbb96 --- /dev/null +++ b/lib/asio/posix/stream_descriptor_service.hpp @@ -0,0 +1,279 @@ +// +// posix/stream_descriptor_service.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_POSIX_STREAM_DESCRIPTOR_SERVICE_HPP +#define ASIO_POSIX_STREAM_DESCRIPTOR_SERVICE_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_ENABLE_OLD_SERVICES) + +#if defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \ + || defined(GENERATING_DOCUMENTATION) + +#include <cstddef> +#include "asio/async_result.hpp" +#include "asio/error.hpp" +#include "asio/io_context.hpp" +#include "asio/detail/reactive_descriptor_service.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace posix { + +/// Default service implementation for a stream descriptor. +class stream_descriptor_service +#if defined(GENERATING_DOCUMENTATION) + : public asio::io_context::service +#else + : public asio::detail::service_base<stream_descriptor_service> +#endif +{ +public: +#if defined(GENERATING_DOCUMENTATION) + /// The unique service identifier. + static asio::io_context::id id; +#endif + +private: + // The type of the platform-specific implementation. + typedef detail::reactive_descriptor_service service_impl_type; + +public: + /// The type of a stream descriptor implementation. +#if defined(GENERATING_DOCUMENTATION) + typedef implementation_defined implementation_type; +#else + typedef service_impl_type::implementation_type implementation_type; +#endif + + /// The native descriptor type. +#if defined(GENERATING_DOCUMENTATION) + typedef implementation_defined native_handle_type; +#else + typedef service_impl_type::native_handle_type native_handle_type; +#endif + + /// Construct a new stream descriptor service for the specified io_context. + explicit stream_descriptor_service(asio::io_context& io_context) + : asio::detail::service_base<stream_descriptor_service>(io_context), + service_impl_(io_context) + { + } + + /// Construct a new stream descriptor implementation. + void construct(implementation_type& impl) + { + service_impl_.construct(impl); + } + +#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + /// Move-construct a new stream descriptor implementation. + void move_construct(implementation_type& impl, + implementation_type& other_impl) + { + service_impl_.move_construct(impl, other_impl); + } + + /// Move-assign from another stream descriptor implementation. + void move_assign(implementation_type& impl, + stream_descriptor_service& other_service, + implementation_type& other_impl) + { + service_impl_.move_assign(impl, other_service.service_impl_, other_impl); + } +#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + + /// Destroy a stream descriptor implementation. + void destroy(implementation_type& impl) + { + service_impl_.destroy(impl); + } + + /// Assign an existing native descriptor to a stream descriptor. + ASIO_SYNC_OP_VOID assign(implementation_type& impl, + const native_handle_type& native_descriptor, + asio::error_code& ec) + { + service_impl_.assign(impl, native_descriptor, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Determine whether the descriptor is open. + bool is_open(const implementation_type& impl) const + { + return service_impl_.is_open(impl); + } + + /// Close a stream descriptor implementation. + ASIO_SYNC_OP_VOID close(implementation_type& impl, + asio::error_code& ec) + { + service_impl_.close(impl, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Get the native descriptor implementation. + native_handle_type native_handle(implementation_type& impl) + { + return service_impl_.native_handle(impl); + } + + /// Release ownership of the native descriptor implementation. + native_handle_type release(implementation_type& impl) + { + return service_impl_.release(impl); + } + + /// Cancel all asynchronous operations associated with the descriptor. + ASIO_SYNC_OP_VOID cancel(implementation_type& impl, + asio::error_code& ec) + { + service_impl_.cancel(impl, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Perform an IO control command on the descriptor. + template <typename IoControlCommand> + ASIO_SYNC_OP_VOID io_control(implementation_type& impl, + IoControlCommand& command, asio::error_code& ec) + { + service_impl_.io_control(impl, command, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Gets the non-blocking mode of the descriptor. + bool non_blocking(const implementation_type& impl) const + { + return service_impl_.non_blocking(impl); + } + + /// Sets the non-blocking mode of the descriptor. + ASIO_SYNC_OP_VOID non_blocking(implementation_type& impl, + bool mode, asio::error_code& ec) + { + service_impl_.non_blocking(impl, mode, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Gets the non-blocking mode of the native descriptor implementation. + bool native_non_blocking(const implementation_type& impl) const + { + return service_impl_.native_non_blocking(impl); + } + + /// Sets the non-blocking mode of the native descriptor implementation. + ASIO_SYNC_OP_VOID native_non_blocking(implementation_type& impl, + bool mode, asio::error_code& ec) + { + service_impl_.native_non_blocking(impl, mode, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Wait for the descriptor to become ready to read, ready to write, or to + /// have pending error conditions. + ASIO_SYNC_OP_VOID wait(implementation_type& impl, + descriptor_base::wait_type w, asio::error_code& ec) + { + service_impl_.wait(impl, w, ec); + ASIO_SYNC_OP_VOID_RETURN(ec); + } + + /// Asynchronously wait for the descriptor to become ready to read, ready to + /// write, or to have pending error conditions. + template <typename WaitHandler> + ASIO_INITFN_RESULT_TYPE(WaitHandler, + void (asio::error_code)) + async_wait(implementation_type& impl, descriptor_base::wait_type w, + ASIO_MOVE_ARG(WaitHandler) handler) + { + async_completion<WaitHandler, + void (asio::error_code)> init(handler); + + service_impl_.async_wait(impl, w, init.completion_handler); + + return init.result.get(); + } + + /// Write the given data to the stream. + template <typename ConstBufferSequence> + std::size_t write_some(implementation_type& impl, + const ConstBufferSequence& buffers, asio::error_code& ec) + { + return service_impl_.write_some(impl, buffers, ec); + } + + /// Start an asynchronous write. + template <typename ConstBufferSequence, typename WriteHandler> + ASIO_INITFN_RESULT_TYPE(WriteHandler, + void (asio::error_code, std::size_t)) + async_write_some(implementation_type& impl, + const ConstBufferSequence& buffers, + ASIO_MOVE_ARG(WriteHandler) handler) + { + asio::async_completion<WriteHandler, + void (asio::error_code, std::size_t)> init(handler); + + service_impl_.async_write_some(impl, buffers, init.completion_handler); + + return init.result.get(); + } + + /// Read some data from the stream. + template <typename MutableBufferSequence> + std::size_t read_some(implementation_type& impl, + const MutableBufferSequence& buffers, asio::error_code& ec) + { + return service_impl_.read_some(impl, buffers, ec); + } + + /// Start an asynchronous read. + template <typename MutableBufferSequence, typename ReadHandler> + ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (asio::error_code, std::size_t)) + async_read_some(implementation_type& impl, + const MutableBufferSequence& buffers, + ASIO_MOVE_ARG(ReadHandler) handler) + { + asio::async_completion<ReadHandler, + void (asio::error_code, std::size_t)> init(handler); + + service_impl_.async_read_some(impl, buffers, init.completion_handler); + + return init.result.get(); + } + +private: + // Destroy all user-defined handler objects owned by the service. + void shutdown() + { + service_impl_.shutdown(); + } + + // The platform-specific implementation. + service_impl_type service_impl_; +}; + +} // namespace posix +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) + // || defined(GENERATING_DOCUMENTATION) + +#endif // defined(ASIO_ENABLE_OLD_SERVICES) + +#endif // ASIO_POSIX_STREAM_DESCRIPTOR_SERVICE_HPP |