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+//
+// basic_stream_handle.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_ASIO_WINDOWS_BASIC_STREAM_HANDLE_HPP
+#define BOOST_ASIO_WINDOWS_BASIC_STREAM_HANDLE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/push_options.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+#include <cstddef>
+#include <boost/config.hpp>
+#include <boost/asio/detail/pop_options.hpp>
+
+#include <boost/asio/error.hpp>
+#include <boost/asio/windows/basic_handle.hpp>
+#include <boost/asio/windows/stream_handle_service.hpp>
+#include <boost/asio/detail/throw_error.hpp>
+
+#if defined(BOOST_ASIO_HAS_WINDOWS_STREAM_HANDLE) \
+ || defined(GENERATING_DOCUMENTATION)
+
+namespace boost {
+namespace asio {
+namespace windows {
+
+/// Provides stream-oriented handle functionality.
+/**
+ * The windows::basic_stream_handle class template provides asynchronous and
+ * blocking stream-oriented handle functionality.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Concepts:
+ * AsyncReadStream, AsyncWriteStream, Stream, SyncReadStream, SyncWriteStream.
+ */
+template <typename StreamHandleService = stream_handle_service>
+class basic_stream_handle
+ : public basic_handle<StreamHandleService>
+{
+public:
+ /// The native representation of a handle.
+ typedef typename StreamHandleService::native_type native_type;
+
+ /// Construct a basic_stream_handle without opening it.
+ /**
+ * This constructor creates a stream handle without opening it. The handle
+ * needs to be opened and then connected or accepted before data can be sent
+ * or received on it.
+ *
+ * @param io_service The io_service object that the stream handle will use to
+ * dispatch handlers for any asynchronous operations performed on the handle.
+ */
+ explicit basic_stream_handle(boost::asio::io_service& io_service)
+ : basic_handle<StreamHandleService>(io_service)
+ {
+ }
+
+ /// Construct a basic_stream_handle on an existing native handle.
+ /**
+ * This constructor creates a stream handle object to hold an existing native
+ * handle.
+ *
+ * @param io_service The io_service object that the stream handle will use to
+ * dispatch handlers for any asynchronous operations performed on the handle.
+ *
+ * @param native_handle The new underlying handle implementation.
+ *
+ * @throws boost::system::system_error Thrown on failure.
+ */
+ basic_stream_handle(boost::asio::io_service& io_service,
+ const native_type& native_handle)
+ : basic_handle<StreamHandleService>(io_service, native_handle)
+ {
+ }
+
+ /// Write some data to the handle.
+ /**
+ * This function is used to write data to the stream handle. 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 handle.
+ *
+ * @returns The number of bytes written.
+ *
+ * @throws boost::system::system_error Thrown on failure. An error code of
+ * boost::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
+ * handle.write_some(boost::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)
+ {
+ boost::system::error_code ec;
+ std::size_t s = this->service.write_some(this->implementation, buffers, ec);
+ boost::asio::detail::throw_error(ec);
+ return s;
+ }
+
+ /// Write some data to the handle.
+ /**
+ * This function is used to write data to the stream handle. 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 handle.
+ *
+ * @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,
+ boost::system::error_code& ec)
+ {
+ return this->service.write_some(this->implementation, buffers, ec);
+ }
+
+ /// Start an asynchronous write.
+ /**
+ * This function is used to asynchronously write data to the stream handle.
+ * The function call always returns immediately.
+ *
+ * @param buffers One or more data buffers to be written to the handle.
+ * 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 boost::system::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
+ * boost::asio::io_service::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
+ * handle.async_write_some(boost::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>
+ void async_write_some(const ConstBufferSequence& buffers,
+ WriteHandler handler)
+ {
+ this->service.async_write_some(this->implementation, buffers, handler);
+ }
+
+ /// Read some data from the handle.
+ /**
+ * This function is used to read data from the stream handle. 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 boost::system::system_error Thrown on failure. An error code of
+ * boost::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
+ * handle.read_some(boost::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)
+ {
+ boost::system::error_code ec;
+ std::size_t s = this->service.read_some(this->implementation, buffers, ec);
+ boost::asio::detail::throw_error(ec);
+ return s;
+ }
+
+ /// Read some data from the handle.
+ /**
+ * This function is used to read data from the stream handle. 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,
+ boost::system::error_code& ec)
+ {
+ return this->service.read_some(this->implementation, buffers, ec);
+ }
+
+ /// Start an asynchronous read.
+ /**
+ * This function is used to asynchronously read data from the stream handle.
+ * 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 boost::system::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
+ * boost::asio::io_service::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
+ * handle.async_read_some(boost::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>
+ void async_read_some(const MutableBufferSequence& buffers,
+ ReadHandler handler)
+ {
+ this->service.async_read_some(this->implementation, buffers, handler);
+ }
+};
+
+} // namespace windows
+} // namespace asio
+} // namespace boost
+
+#endif // defined(BOOST_ASIO_HAS_WINDOWS_STREAM_HANDLE)
+ // || defined(GENERATING_DOCUMENTATION)
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_WINDOWS_BASIC_STREAM_HANDLE_HPP