Swift
summaryrefslogtreecommitdiffstats
path: root/3rdParty/Boost/boost/asio/buffers_iterator.hpp
diff options
context:
space:
mode:
authorRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
committerRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
commit0efa7c32aaf21a29b42b5926cc116007056843be (patch)
tree882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/asio/buffers_iterator.hpp
parent1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff)
downloadswift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.zip
swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/boost/asio/buffers_iterator.hpp')
m---------3rdParty/Boost0
-rw-r--r--3rdParty/Boost/boost/asio/buffers_iterator.hpp327
2 files changed, 0 insertions, 327 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost
new file mode 160000
+Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79
diff --git a/3rdParty/Boost/boost/asio/buffers_iterator.hpp b/3rdParty/Boost/boost/asio/buffers_iterator.hpp
deleted file mode 100644
index f9d61da..0000000
--- a/3rdParty/Boost/boost/asio/buffers_iterator.hpp
+++ /dev/null
@@ -1,327 +0,0 @@
-//
-// buffers_iterator.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_BUFFERS_ITERATOR_HPP
-#define BOOST_ASIO_BUFFERS_ITERATOR_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/assert.hpp>
-#include <boost/config.hpp>
-#include <boost/detail/workaround.hpp>
-#include <boost/iterator/iterator_facade.hpp>
-#include <boost/type_traits/is_convertible.hpp>
-#include <boost/type_traits/add_const.hpp>
-#include <boost/asio/detail/pop_options.hpp>
-
-#include <boost/asio/buffer.hpp>
-
-namespace boost {
-namespace asio {
-
-namespace detail
-{
- template <bool IsMutable>
- struct buffers_iterator_types_helper;
-
- template <>
- struct buffers_iterator_types_helper<false>
- {
- typedef const_buffer buffer_type;
- template <typename ByteType>
- struct byte_type
- {
- typedef typename boost::add_const<ByteType>::type type;
- };
- };
-
- template <>
- struct buffers_iterator_types_helper<true>
- {
- typedef mutable_buffer buffer_type;
- template <typename ByteType>
- struct byte_type
- {
- typedef ByteType type;
- };
- };
-
- template <typename BufferSequence, typename ByteType>
- struct buffers_iterator_types
- {
- enum
- {
- is_mutable = boost::is_convertible<
- typename BufferSequence::value_type, mutable_buffer>::value
- };
- typedef buffers_iterator_types_helper<is_mutable> helper;
- typedef typename helper::buffer_type buffer_type;
- typedef typename helper::template byte_type<ByteType>::type byte_type;
- };
-}
-
-/// A random access iterator over the bytes in a buffer sequence.
-template <typename BufferSequence, typename ByteType = char>
-class buffers_iterator
- : public boost::iterator_facade<
- buffers_iterator<BufferSequence, ByteType>,
- typename detail::buffers_iterator_types<
- BufferSequence, ByteType>::byte_type,
- boost::random_access_traversal_tag>
-{
-private:
- typedef typename detail::buffers_iterator_types<
- BufferSequence, ByteType>::buffer_type buffer_type;
- typedef typename detail::buffers_iterator_types<
- BufferSequence, ByteType>::byte_type byte_type;
-
-public:
- /// Default constructor. Creates an iterator in an undefined state.
- buffers_iterator()
- : current_buffer_(),
- current_buffer_position_(0),
- begin_(),
- current_(),
- end_(),
- position_(0)
- {
- }
-
- /// Construct an iterator representing the beginning of the buffers' data.
- static buffers_iterator begin(const BufferSequence& buffers)
-#if BOOST_WORKAROUND(__GNUC__, == 4) && BOOST_WORKAROUND(__GNUC_MINOR__, == 3)
- __attribute__ ((noinline))
-#endif
- {
- buffers_iterator new_iter;
- new_iter.begin_ = buffers.begin();
- new_iter.current_ = buffers.begin();
- new_iter.end_ = buffers.end();
- while (new_iter.current_ != new_iter.end_)
- {
- new_iter.current_buffer_ = *new_iter.current_;
- if (boost::asio::buffer_size(new_iter.current_buffer_) > 0)
- break;
- ++new_iter.current_;
- }
- return new_iter;
- }
-
- /// Construct an iterator representing the end of the buffers' data.
- static buffers_iterator end(const BufferSequence& buffers)
-#if BOOST_WORKAROUND(__GNUC__, == 4) && BOOST_WORKAROUND(__GNUC_MINOR__, == 3)
- __attribute__ ((noinline))
-#endif
- {
- buffers_iterator new_iter;
- new_iter.begin_ = buffers.begin();
- new_iter.current_ = buffers.begin();
- new_iter.end_ = buffers.end();
- while (new_iter.current_ != new_iter.end_)
- {
- buffer_type buffer = *new_iter.current_;
- new_iter.position_ += boost::asio::buffer_size(buffer);
- ++new_iter.current_;
- }
- return new_iter;
- }
-
-private:
- friend class boost::iterator_core_access;
-
- // Dereference the iterator.
- byte_type& dereference() const
- {
- return buffer_cast<byte_type*>(current_buffer_)[current_buffer_position_];
- }
-
- // Compare two iterators for equality.
- bool equal(const buffers_iterator& other) const
- {
- return position_ == other.position_;
- }
-
- // Increment the iterator.
- void increment()
- {
- BOOST_ASSERT(current_ != end_ && "iterator out of bounds");
- ++position_;
-
- // Check if the increment can be satisfied by the current buffer.
- ++current_buffer_position_;
- if (current_buffer_position_ != boost::asio::buffer_size(current_buffer_))
- return;
-
- // Find the next non-empty buffer.
- ++current_;
- current_buffer_position_ = 0;
- while (current_ != end_)
- {
- current_buffer_ = *current_;
- if (boost::asio::buffer_size(current_buffer_) > 0)
- return;
- ++current_;
- }
- }
-
- // Decrement the iterator.
- void decrement()
- {
- BOOST_ASSERT(position_ > 0 && "iterator out of bounds");
- --position_;
-
- // Check if the decrement can be satisfied by the current buffer.
- if (current_buffer_position_ != 0)
- {
- --current_buffer_position_;
- return;
- }
-
- // Find the previous non-empty buffer.
- typename BufferSequence::const_iterator iter = current_;
- while (iter != begin_)
- {
- --iter;
- buffer_type buffer = *iter;
- std::size_t buffer_size = boost::asio::buffer_size(buffer);
- if (buffer_size > 0)
- {
- current_ = iter;
- current_buffer_ = buffer;
- current_buffer_position_ = buffer_size - 1;
- return;
- }
- }
- }
-
- // Advance the iterator by the specified distance.
- void advance(std::ptrdiff_t n)
- {
- if (n > 0)
- {
- BOOST_ASSERT(current_ != end_ && "iterator out of bounds");
- for (;;)
- {
- std::ptrdiff_t current_buffer_balance
- = boost::asio::buffer_size(current_buffer_)
- - current_buffer_position_;
-
- // Check if the advance can be satisfied by the current buffer.
- if (current_buffer_balance > n)
- {
- position_ += n;
- current_buffer_position_ += n;
- return;
- }
-
- // Update position.
- n -= current_buffer_balance;
- position_ += current_buffer_balance;
-
- // Move to next buffer. If it is empty then it will be skipped on the
- // next iteration of this loop.
- if (++current_ == end_)
- {
- BOOST_ASSERT(n == 0 && "iterator out of bounds");
- current_buffer_ = buffer_type();
- current_buffer_position_ = 0;
- return;
- }
- current_buffer_ = *current_;
- current_buffer_position_ = 0;
- }
- }
- else if (n < 0)
- {
- std::size_t abs_n = -n;
- BOOST_ASSERT(position_ >= abs_n && "iterator out of bounds");
- for (;;)
- {
- // Check if the advance can be satisfied by the current buffer.
- if (current_buffer_position_ >= abs_n)
- {
- position_ -= abs_n;
- current_buffer_position_ -= abs_n;
- return;
- }
-
- // Update position.
- abs_n -= current_buffer_position_;
- position_ -= current_buffer_position_;
-
- // Check if we've reached the beginning of the buffers.
- if (current_ == begin_)
- {
- BOOST_ASSERT(abs_n == 0 && "iterator out of bounds");
- current_buffer_position_ = 0;
- return;
- }
-
- // Find the previous non-empty buffer.
- typename BufferSequence::const_iterator iter = current_;
- while (iter != begin_)
- {
- --iter;
- buffer_type buffer = *iter;
- std::size_t buffer_size = boost::asio::buffer_size(buffer);
- if (buffer_size > 0)
- {
- current_ = iter;
- current_buffer_ = buffer;
- current_buffer_position_ = buffer_size;
- break;
- }
- }
- }
- }
- }
-
- // Determine the distance between two iterators.
- std::ptrdiff_t distance_to(const buffers_iterator& other) const
- {
- return other.position_ - position_;
- }
-
- buffer_type current_buffer_;
- std::size_t current_buffer_position_;
- typename BufferSequence::const_iterator begin_;
- typename BufferSequence::const_iterator current_;
- typename BufferSequence::const_iterator end_;
- std::size_t position_;
-};
-
-/// Construct an iterator representing the beginning of the buffers' data.
-template <typename BufferSequence>
-inline buffers_iterator<BufferSequence> buffers_begin(
- const BufferSequence& buffers)
-{
- return buffers_iterator<BufferSequence>::begin(buffers);
-}
-
-/// Construct an iterator representing the end of the buffers' data.
-template <typename BufferSequence>
-inline buffers_iterator<BufferSequence> buffers_end(
- const BufferSequence& buffers)
-{
- return buffers_iterator<BufferSequence>::end(buffers);
-}
-
-} // namespace asio
-} // namespace boost
-
-#include <boost/asio/detail/pop_options.hpp>
-
-#endif // BOOST_ASIO_BUFFERS_ITERATOR_HPP