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authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-10-07 04:52:50 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-10-07 04:52:50 +0200
commit0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d (patch)
treea71d934d8151dd43e7c16555fef17fd749c5da70 /lib/asio/impl/buffered_read_stream.hpp
parent558d74bffd9f069955af52c0b308a1d6169bcff0 (diff)
parent0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff)
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Merge lime output into next branch
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diff --git a/lib/asio/impl/buffered_read_stream.hpp b/lib/asio/impl/buffered_read_stream.hpp
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-//
-// impl/buffered_read_stream.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_IMPL_BUFFERED_READ_STREAM_HPP
-#define ASIO_IMPL_BUFFERED_READ_STREAM_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/associated_allocator.hpp"
-#include "asio/associated_executor.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_cont_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/handler_type_requirements.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-
-template <typename Stream>
-std::size_t buffered_read_stream<Stream>::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;
-}
-
-template <typename Stream>
-std::size_t buffered_read_stream<Stream>::fill(asio::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;
-}
-
-namespace detail
-{
- template <typename ReadHandler>
- class buffered_fill_handler
- {
- public:
- buffered_fill_handler(detail::buffered_stream_storage& storage,
- std::size_t previous_size, ReadHandler& handler)
- : storage_(storage),
- previous_size_(previous_size),
- handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
- {
- }
-
-#if defined(ASIO_HAS_MOVE)
- buffered_fill_handler(const buffered_fill_handler& other)
- : storage_(other.storage_),
- previous_size_(other.previous_size_),
- handler_(other.handler_)
- {
- }
-
- buffered_fill_handler(buffered_fill_handler&& other)
- : storage_(other.storage_),
- previous_size_(other.previous_size_),
- handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
- {
- }
-#endif // defined(ASIO_HAS_MOVE)
-
- void operator()(const asio::error_code& ec,
- const std::size_t bytes_transferred)
- {
- storage_.resize(previous_size_ + bytes_transferred);
- handler_(ec, bytes_transferred);
- }
-
- //private:
- detail::buffered_stream_storage& storage_;
- std::size_t previous_size_;
- ReadHandler handler_;
- };
-
- template <typename ReadHandler>
- inline void* asio_handler_allocate(std::size_t size,
- buffered_fill_handler<ReadHandler>* this_handler)
- {
- return asio_handler_alloc_helpers::allocate(
- size, this_handler->handler_);
- }
-
- template <typename ReadHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
- buffered_fill_handler<ReadHandler>* this_handler)
- {
- asio_handler_alloc_helpers::deallocate(
- pointer, size, this_handler->handler_);
- }
-
- template <typename ReadHandler>
- inline bool asio_handler_is_continuation(
- buffered_fill_handler<ReadHandler>* this_handler)
- {
- return asio_handler_cont_helpers::is_continuation(
- this_handler->handler_);
- }
-
- template <typename Function, typename ReadHandler>
- inline void asio_handler_invoke(Function& function,
- buffered_fill_handler<ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Function, typename ReadHandler>
- inline void asio_handler_invoke(const Function& function,
- buffered_fill_handler<ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-} // namespace detail
-
-#if !defined(GENERATING_DOCUMENTATION)
-
-template <typename ReadHandler, typename Allocator>
-struct associated_allocator<
- detail::buffered_fill_handler<ReadHandler>, Allocator>
-{
- typedef typename associated_allocator<ReadHandler, Allocator>::type type;
-
- static type get(const detail::buffered_fill_handler<ReadHandler>& h,
- const Allocator& a = Allocator()) ASIO_NOEXCEPT
- {
- return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a);
- }
-};
-
-template <typename ReadHandler, typename Executor>
-struct associated_executor<
- detail::buffered_fill_handler<ReadHandler>, Executor>
-{
- typedef typename associated_executor<ReadHandler, Executor>::type type;
-
- static type get(const detail::buffered_fill_handler<ReadHandler>& h,
- const Executor& ex = Executor()) ASIO_NOEXCEPT
- {
- return associated_executor<ReadHandler, Executor>::get(h.handler_, ex);
- }
-};
-
-#endif // !defined(GENERATING_DOCUMENTATION)
-
-template <typename Stream>
-template <typename ReadHandler>
-ASIO_INITFN_RESULT_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))
-buffered_read_stream<Stream>::async_fill(
- 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;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(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),
- detail::buffered_fill_handler<ASIO_HANDLER_TYPE(
- ReadHandler, void (asio::error_code, std::size_t))>(
- storage_, previous_size, init.completion_handler));
-
- return init.result.get();
-}
-
-template <typename Stream>
-template <typename MutableBufferSequence>
-std::size_t buffered_read_stream<Stream>::read_some(
- const MutableBufferSequence& buffers)
-{
- using asio::buffer_size;
- if (buffer_size(buffers) == 0)
- return 0;
-
- if (storage_.empty())
- this->fill();
-
- return this->copy(buffers);
-}
-
-template <typename Stream>
-template <typename MutableBufferSequence>
-std::size_t buffered_read_stream<Stream>::read_some(
- const MutableBufferSequence& buffers, asio::error_code& ec)
-{
- ec = asio::error_code();
-
- using asio::buffer_size;
- if (buffer_size(buffers) == 0)
- return 0;
-
- if (storage_.empty() && !this->fill(ec))
- return 0;
-
- return this->copy(buffers);
-}
-
-namespace detail
-{
- template <typename MutableBufferSequence, typename ReadHandler>
- class buffered_read_some_handler
- {
- public:
- buffered_read_some_handler(detail::buffered_stream_storage& storage,
- const MutableBufferSequence& buffers, ReadHandler& handler)
- : storage_(storage),
- buffers_(buffers),
- handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
- {
- }
-
-#if defined(ASIO_HAS_MOVE)
- buffered_read_some_handler(const buffered_read_some_handler& other)
- : storage_(other.storage_),
- buffers_(other.buffers_),
- handler_(other.handler_)
- {
- }
-
- buffered_read_some_handler(buffered_read_some_handler&& other)
- : storage_(other.storage_),
- buffers_(other.buffers_),
- handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
- {
- }
-#endif // defined(ASIO_HAS_MOVE)
-
- void operator()(const asio::error_code& ec, std::size_t)
- {
- if (ec || storage_.empty())
- {
- const std::size_t length = 0;
- handler_(ec, length);
- }
- else
- {
- const std::size_t bytes_copied = asio::buffer_copy(
- buffers_, storage_.data(), storage_.size());
- storage_.consume(bytes_copied);
- handler_(ec, bytes_copied);
- }
- }
-
- //private:
- detail::buffered_stream_storage& storage_;
- MutableBufferSequence buffers_;
- ReadHandler handler_;
- };
-
- template <typename MutableBufferSequence, typename ReadHandler>
- inline void* asio_handler_allocate(std::size_t size,
- buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>* this_handler)
- {
- return asio_handler_alloc_helpers::allocate(
- size, this_handler->handler_);
- }
-
- template <typename MutableBufferSequence, typename ReadHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
- buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>* this_handler)
- {
- asio_handler_alloc_helpers::deallocate(
- pointer, size, this_handler->handler_);
- }
-
- template <typename MutableBufferSequence, typename ReadHandler>
- inline bool asio_handler_is_continuation(
- buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>* this_handler)
- {
- return asio_handler_cont_helpers::is_continuation(
- this_handler->handler_);
- }
-
- template <typename Function, typename MutableBufferSequence,
- typename ReadHandler>
- inline void asio_handler_invoke(Function& function,
- buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Function, typename MutableBufferSequence,
- typename ReadHandler>
- inline void asio_handler_invoke(const Function& function,
- buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-} // namespace detail
-
-#if !defined(GENERATING_DOCUMENTATION)
-
-template <typename MutableBufferSequence,
- typename ReadHandler, typename Allocator>
-struct associated_allocator<
- detail::buffered_read_some_handler<MutableBufferSequence, ReadHandler>,
- Allocator>
-{
- typedef typename associated_allocator<ReadHandler, Allocator>::type type;
-
- static type get(
- const detail::buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>& h,
- const Allocator& a = Allocator()) ASIO_NOEXCEPT
- {
- return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a);
- }
-};
-
-template <typename MutableBufferSequence,
- typename ReadHandler, typename Executor>
-struct associated_executor<
- detail::buffered_read_some_handler<MutableBufferSequence, ReadHandler>,
- Executor>
-{
- typedef typename associated_executor<ReadHandler, Executor>::type type;
-
- static type get(
- const detail::buffered_read_some_handler<
- MutableBufferSequence, ReadHandler>& h,
- const Executor& ex = Executor()) ASIO_NOEXCEPT
- {
- return associated_executor<ReadHandler, Executor>::get(h.handler_, ex);
- }
-};
-
-#endif // !defined(GENERATING_DOCUMENTATION)
-
-template <typename Stream>
-template <typename MutableBufferSequence, typename ReadHandler>
-ASIO_INITFN_RESULT_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))
-buffered_read_stream<Stream>::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;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- using asio::buffer_size;
- if (buffer_size(buffers) == 0 || !storage_.empty())
- {
- next_layer_.async_read_some(ASIO_MUTABLE_BUFFER(0, 0),
- detail::buffered_read_some_handler<
- MutableBufferSequence, ASIO_HANDLER_TYPE(
- ReadHandler, void (asio::error_code, std::size_t))>(
- storage_, buffers, init.completion_handler));
- }
- else
- {
- this->async_fill(detail::buffered_read_some_handler<
- MutableBufferSequence, ASIO_HANDLER_TYPE(
- ReadHandler, void (asio::error_code, std::size_t))>(
- storage_, buffers, init.completion_handler));
- }
-
- return init.result.get();
-}
-
-template <typename Stream>
-template <typename MutableBufferSequence>
-std::size_t buffered_read_stream<Stream>::peek(
- const MutableBufferSequence& buffers)
-{
- if (storage_.empty())
- this->fill();
- return this->peek_copy(buffers);
-}
-
-template <typename Stream>
-template <typename MutableBufferSequence>
-std::size_t buffered_read_stream<Stream>::peek(
- const MutableBufferSequence& buffers, asio::error_code& ec)
-{
- ec = asio::error_code();
- if (storage_.empty() && !this->fill(ec))
- return 0;
- return this->peek_copy(buffers);
-}
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_IMPL_BUFFERED_READ_STREAM_HPP