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Diffstat (limited to 'boost/asio/buffered_read_stream.hpp')
-rw-r--r--boost/asio/buffered_read_stream.hpp199
1 files changed, 34 insertions, 165 deletions
diff --git a/boost/asio/buffered_read_stream.hpp b/boost/asio/buffered_read_stream.hpp
index 3072580059..91493e3577 100644
--- a/boost/asio/buffered_read_stream.hpp
+++ b/boost/asio/buffered_read_stream.hpp
@@ -2,7 +2,7 @@
// buffered_read_stream.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~
//
-// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// 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)
@@ -17,13 +17,14 @@
#include <boost/asio/detail/config.hpp>
#include <cstddef>
-#include <boost/type_traits/remove_reference.hpp>
+#include <boost/asio/async_result.hpp>
#include <boost/asio/buffered_read_stream_fwd.hpp>
#include <boost/asio/buffer.hpp>
#include <boost/asio/detail/bind_handler.hpp>
#include <boost/asio/detail/buffer_resize_guard.hpp>
#include <boost/asio/detail/buffered_stream_storage.hpp>
#include <boost/asio/detail/noncopyable.hpp>
+#include <boost/asio/detail/type_traits.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/io_service.hpp>
@@ -42,7 +43,7 @@ namespace asio {
* @e Shared @e objects: Unsafe.
*
* @par Concepts:
- * AsyncReadStream, AsyncWriteStream, Stream, Sync_Read_Stream, SyncWriteStream.
+ * AsyncReadStream, AsyncWriteStream, Stream, SyncReadStream, SyncWriteStream.
*/
template <typename Stream>
class buffered_read_stream
@@ -50,7 +51,7 @@ class buffered_read_stream
{
public:
/// The type of the next layer.
- typedef typename boost::remove_reference<Stream>::type next_layer_type;
+ typedef typename remove_reference<Stream>::type next_layer_type;
/// The type of the lowest layer.
typedef typename next_layer_type::lowest_layer_type lowest_layer_type;
@@ -59,7 +60,7 @@ public:
/// The default buffer size.
static const std::size_t default_buffer_size = implementation_defined;
#else
- BOOST_STATIC_CONSTANT(std::size_t, default_buffer_size = 1024);
+ BOOST_ASIO_STATIC_CONSTANT(std::size_t, default_buffer_size = 1024);
#endif
/// Construct, passing the specified argument to initialise the next layer.
@@ -134,199 +135,65 @@ public:
/// Start an asynchronous write. The data being written must be valid for the
/// lifetime of the asynchronous operation.
template <typename ConstBufferSequence, typename WriteHandler>
- void async_write_some(const ConstBufferSequence& buffers,
- WriteHandler handler)
+ BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler,
+ void (boost::system::error_code, std::size_t))
+ async_write_some(const ConstBufferSequence& buffers,
+ BOOST_ASIO_MOVE_ARG(WriteHandler) handler)
{
- next_layer_.async_write_some(buffers, handler);
+ detail::async_result_init<
+ WriteHandler, void (boost::system::error_code, std::size_t)> init(
+ BOOST_ASIO_MOVE_CAST(WriteHandler)(handler));
+
+ next_layer_.async_write_some(buffers,
+ BOOST_ASIO_MOVE_CAST(BOOST_ASIO_HANDLER_TYPE(WriteHandler,
+ void (boost::system::error_code, std::size_t)))(init.handler));
+
+ return init.result.get();
}
/// Fill the buffer with some data. Returns the number of bytes placed in the
/// buffer as a result of the operation. Throws an exception on failure.
- std::size_t fill()
- {
- detail::buffer_resize_guard<detail::buffered_stream_storage>
- resize_guard(storage_);
- std::size_t previous_size = storage_.size();
- storage_.resize(storage_.capacity());
- storage_.resize(previous_size + next_layer_.read_some(buffer(
- storage_.data() + previous_size,
- storage_.size() - previous_size)));
- resize_guard.commit();
- return storage_.size() - previous_size;
- }
+ std::size_t fill();
/// Fill the buffer with some data. Returns the number of bytes placed in the
/// buffer as a result of the operation, or 0 if an error occurred.
- std::size_t fill(boost::system::error_code& ec)
- {
- detail::buffer_resize_guard<detail::buffered_stream_storage>
- resize_guard(storage_);
- std::size_t previous_size = storage_.size();
- storage_.resize(storage_.capacity());
- storage_.resize(previous_size + next_layer_.read_some(buffer(
- storage_.data() + previous_size,
- storage_.size() - previous_size),
- ec));
- resize_guard.commit();
- return storage_.size() - previous_size;
- }
-
- template <typename ReadHandler>
- class fill_handler
- {
- public:
- fill_handler(boost::asio::io_service& io_service,
- detail::buffered_stream_storage& storage,
- std::size_t previous_size, ReadHandler handler)
- : io_service_(io_service),
- storage_(storage),
- previous_size_(previous_size),
- handler_(handler)
- {
- }
-
- void operator()(const boost::system::error_code& ec,
- std::size_t bytes_transferred)
- {
- storage_.resize(previous_size_ + bytes_transferred);
- io_service_.dispatch(detail::bind_handler(
- handler_, ec, bytes_transferred));
- }
-
- private:
- boost::asio::io_service& io_service_;
- detail::buffered_stream_storage& storage_;
- std::size_t previous_size_;
- ReadHandler handler_;
- };
+ std::size_t fill(boost::system::error_code& ec);
/// Start an asynchronous fill.
template <typename ReadHandler>
- void async_fill(ReadHandler handler)
- {
- std::size_t previous_size = storage_.size();
- storage_.resize(storage_.capacity());
- next_layer_.async_read_some(
- buffer(
- storage_.data() + previous_size,
- storage_.size() - previous_size),
- fill_handler<ReadHandler>(get_io_service(),
- storage_, previous_size, handler));
- }
+ BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler,
+ void (boost::system::error_code, std::size_t))
+ async_fill(BOOST_ASIO_MOVE_ARG(ReadHandler) handler);
/// Read some data from the stream. Returns the number of bytes read. Throws
/// an exception on failure.
template <typename MutableBufferSequence>
- std::size_t read_some(const MutableBufferSequence& buffers)
- {
- if (boost::asio::buffer_size(buffers) == 0)
- return 0;
-
- if (storage_.empty())
- fill();
-
- return copy(buffers);
- }
+ std::size_t read_some(const MutableBufferSequence& buffers);
/// Read some data from the stream. Returns the number of bytes read or 0 if
/// an error occurred.
template <typename MutableBufferSequence>
std::size_t read_some(const MutableBufferSequence& buffers,
- boost::system::error_code& ec)
- {
- ec = boost::system::error_code();
-
- if (boost::asio::buffer_size(buffers) == 0)
- return 0;
-
- if (storage_.empty() && !fill(ec))
- return 0;
-
- return copy(buffers);
- }
-
- template <typename MutableBufferSequence, typename ReadHandler>
- class read_some_handler
- {
- public:
- read_some_handler(boost::asio::io_service& io_service,
- detail::buffered_stream_storage& storage,
- const MutableBufferSequence& buffers, ReadHandler handler)
- : io_service_(io_service),
- storage_(storage),
- buffers_(buffers),
- handler_(handler)
- {
- }
-
- void operator()(const boost::system::error_code& ec, std::size_t)
- {
- if (ec || storage_.empty())
- {
- std::size_t length = 0;
- io_service_.dispatch(detail::bind_handler(handler_, ec, length));
- }
- else
- {
- std::size_t bytes_copied = boost::asio::buffer_copy(
- buffers_, storage_.data(), storage_.size());
- storage_.consume(bytes_copied);
- io_service_.dispatch(detail::bind_handler(handler_, ec, bytes_copied));
- }
- }
-
- private:
- boost::asio::io_service& io_service_;
- detail::buffered_stream_storage& storage_;
- MutableBufferSequence buffers_;
- ReadHandler handler_;
- };
+ boost::system::error_code& ec);
/// Start an asynchronous read. The buffer into which the data will be read
/// must be valid for the lifetime of the asynchronous operation.
template <typename MutableBufferSequence, typename ReadHandler>
- void async_read_some(const MutableBufferSequence& buffers,
- ReadHandler handler)
- {
- if (boost::asio::buffer_size(buffers) == 0)
- {
- get_io_service().post(detail::bind_handler(
- handler, boost::system::error_code(), 0));
- }
- else if (storage_.empty())
- {
- async_fill(read_some_handler<MutableBufferSequence, ReadHandler>(
- get_io_service(), storage_, buffers, handler));
- }
- else
- {
- std::size_t length = copy(buffers);
- get_io_service().post(detail::bind_handler(
- handler, boost::system::error_code(), length));
- }
- }
+ BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler,
+ void (boost::system::error_code, std::size_t))
+ async_read_some(const MutableBufferSequence& buffers,
+ BOOST_ASIO_MOVE_ARG(ReadHandler) handler);
/// Peek at the incoming data on the stream. Returns the number of bytes read.
/// Throws an exception on failure.
template <typename MutableBufferSequence>
- std::size_t peek(const MutableBufferSequence& buffers)
- {
- if (storage_.empty())
- fill();
- return peek_copy(buffers);
- }
+ std::size_t peek(const MutableBufferSequence& buffers);
/// Peek at the incoming data on the stream. Returns the number of bytes read,
/// or 0 if an error occurred.
template <typename MutableBufferSequence>
std::size_t peek(const MutableBufferSequence& buffers,
- boost::system::error_code& ec)
- {
- ec = boost::system::error_code();
- if (storage_.empty() && !fill(ec))
- return 0;
- return peek_copy(buffers);
- }
+ boost::system::error_code& ec);
/// Determine the amount of data that may be read without blocking.
std::size_t in_avail()
@@ -374,4 +241,6 @@ private:
#include <boost/asio/detail/pop_options.hpp>
+#include <boost/asio/impl/buffered_read_stream.hpp>
+
#endif // BOOST_ASIO_BUFFERED_READ_STREAM_HPP
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 05:55:17 +0000