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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/write_at.hpp
parent558d74bffd9f069955af52c0b308a1d6169bcff0 (diff)
parent0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff)
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Merge lime output into next branch
Diffstat (limited to 'lib/asio/impl/write_at.hpp')
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diff --git a/lib/asio/impl/write_at.hpp b/lib/asio/impl/write_at.hpp
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-//
-// impl/write_at.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_WRITE_AT_HPP
-#define ASIO_IMPL_WRITE_AT_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/buffer.hpp"
-#include "asio/completion_condition.hpp"
-#include "asio/detail/array_fwd.hpp"
-#include "asio/detail/base_from_completion_cond.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/consuming_buffers.hpp"
-#include "asio/detail/dependent_type.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/throw_error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-
-namespace detail
-{
- template <typename SyncRandomAccessWriteDevice, typename ConstBufferSequence,
- typename ConstBufferIterator, typename CompletionCondition>
- std::size_t write_at_buffer_sequence(SyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers,
- const ConstBufferIterator&, CompletionCondition completion_condition,
- asio::error_code& ec)
- {
- ec = asio::error_code();
- asio::detail::consuming_buffers<const_buffer,
- ConstBufferSequence, ConstBufferIterator> tmp(buffers);
- while (!tmp.empty())
- {
- if (std::size_t max_size = detail::adapt_completion_condition_result(
- completion_condition(ec, tmp.total_consumed())))
- {
- tmp.consume(d.write_some_at(offset + tmp.total_consumed(),
- tmp.prepare(max_size), ec));
- }
- else
- break;
- }
- return tmp.total_consumed();;
- }
-} // namespace detail
-
-template <typename SyncRandomAccessWriteDevice, typename ConstBufferSequence,
- typename CompletionCondition>
-std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers,
- CompletionCondition completion_condition, asio::error_code& ec)
-{
- return detail::write_at_buffer_sequence(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), completion_condition, ec);
-}
-
-template <typename SyncRandomAccessWriteDevice, typename ConstBufferSequence>
-inline std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = write_at(
- d, offset, buffers, transfer_all(), ec);
- asio::detail::throw_error(ec, "write_at");
- return bytes_transferred;
-}
-
-template <typename SyncRandomAccessWriteDevice, typename ConstBufferSequence>
-inline std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers,
- asio::error_code& ec)
-{
- return write_at(d, offset, buffers, transfer_all(), ec);
-}
-
-template <typename SyncRandomAccessWriteDevice, typename ConstBufferSequence,
- typename CompletionCondition>
-inline std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers,
- CompletionCondition completion_condition)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = write_at(
- d, offset, buffers, completion_condition, ec);
- asio::detail::throw_error(ec, "write_at");
- return bytes_transferred;
-}
-
-#if !defined(ASIO_NO_EXTENSIONS)
-#if !defined(ASIO_NO_IOSTREAM)
-
-template <typename SyncRandomAccessWriteDevice, typename Allocator,
- typename CompletionCondition>
-std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- CompletionCondition completion_condition, asio::error_code& ec)
-{
- std::size_t bytes_transferred = write_at(
- d, offset, b.data(), completion_condition, ec);
- b.consume(bytes_transferred);
- return bytes_transferred;
-}
-
-template <typename SyncRandomAccessWriteDevice, typename Allocator>
-inline std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = write_at(d, offset, b, transfer_all(), ec);
- asio::detail::throw_error(ec, "write_at");
- return bytes_transferred;
-}
-
-template <typename SyncRandomAccessWriteDevice, typename Allocator>
-inline std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- asio::error_code& ec)
-{
- return write_at(d, offset, b, transfer_all(), ec);
-}
-
-template <typename SyncRandomAccessWriteDevice, typename Allocator,
- typename CompletionCondition>
-inline std::size_t write_at(SyncRandomAccessWriteDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- CompletionCondition completion_condition)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = write_at(
- d, offset, b, completion_condition, ec);
- asio::detail::throw_error(ec, "write_at");
- return bytes_transferred;
-}
-
-#endif // !defined(ASIO_NO_IOSTREAM)
-#endif // !defined(ASIO_NO_EXTENSIONS)
-
-namespace detail
-{
- template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- class write_at_op
- : detail::base_from_completion_cond<CompletionCondition>
- {
- public:
- write_at_op(AsyncRandomAccessWriteDevice& device,
- uint64_t offset, const ConstBufferSequence& buffers,
- CompletionCondition completion_condition, WriteHandler& handler)
- : detail::base_from_completion_cond<
- CompletionCondition>(completion_condition),
- device_(device),
- offset_(offset),
- buffers_(buffers),
- start_(0),
- handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
- {
- }
-
-#if defined(ASIO_HAS_MOVE)
- write_at_op(const write_at_op& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
- device_(other.device_),
- offset_(other.offset_),
- buffers_(other.buffers_),
- start_(other.start_),
- handler_(other.handler_)
- {
- }
-
- write_at_op(write_at_op&& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
- device_(other.device_),
- offset_(other.offset_),
- buffers_(other.buffers_),
- start_(other.start_),
- handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
- {
- }
-#endif // defined(ASIO_HAS_MOVE)
-
- void operator()(const asio::error_code& ec,
- std::size_t bytes_transferred, int start = 0)
- {
- std::size_t max_size;
- switch (start_ = start)
- {
- case 1:
- max_size = this->check_for_completion(ec, buffers_.total_consumed());
- do
- {
- device_.async_write_some_at(
- offset_ + buffers_.total_consumed(), buffers_.prepare(max_size),
- ASIO_MOVE_CAST(write_at_op)(*this));
- return; default:
- buffers_.consume(bytes_transferred);
- if ((!ec && bytes_transferred == 0) || buffers_.empty())
- break;
- max_size = this->check_for_completion(ec, buffers_.total_consumed());
- } while (max_size > 0);
-
- handler_(ec, buffers_.total_consumed());
- }
- }
-
- //private:
- AsyncRandomAccessWriteDevice& device_;
- uint64_t offset_;
- asio::detail::consuming_buffers<const_buffer,
- ConstBufferSequence, ConstBufferIterator> buffers_;
- int start_;
- WriteHandler handler_;
- };
-
- template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- inline void* asio_handler_allocate(std::size_t size,
- write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>* this_handler)
- {
- return asio_handler_alloc_helpers::allocate(
- size, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
- write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>* this_handler)
- {
- asio_handler_alloc_helpers::deallocate(
- pointer, size, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- inline bool asio_handler_is_continuation(
- write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>* this_handler)
- {
- return this_handler->start_ == 0 ? true
- : asio_handler_cont_helpers::is_continuation(
- this_handler->handler_);
- }
-
- template <typename Function, typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- inline void asio_handler_invoke(Function& function,
- write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Function, typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- inline void asio_handler_invoke(const Function& function,
- write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler>
- inline void start_write_at_buffer_sequence_op(AsyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers,
- const ConstBufferIterator&, CompletionCondition completion_condition,
- WriteHandler& handler)
- {
- detail::write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>(
- d, offset, buffers, completion_condition, handler)(
- asio::error_code(), 0, 1);
- }
-} // namespace detail
-
-#if !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler, typename Allocator>
-struct associated_allocator<
- detail::write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>,
- Allocator>
-{
- typedef typename associated_allocator<WriteHandler, Allocator>::type type;
-
- static type get(
- const detail::write_at_op<AsyncRandomAccessWriteDevice,
- ConstBufferSequence, ConstBufferIterator,
- CompletionCondition, WriteHandler>& h,
- const Allocator& a = Allocator()) ASIO_NOEXCEPT
- {
- return associated_allocator<WriteHandler, Allocator>::get(h.handler_, a);
- }
-};
-
-template <typename AsyncRandomAccessWriteDevice,
- typename ConstBufferSequence, typename ConstBufferIterator,
- typename CompletionCondition, typename WriteHandler, typename Executor>
-struct associated_executor<
- detail::write_at_op<AsyncRandomAccessWriteDevice, ConstBufferSequence,
- ConstBufferIterator, CompletionCondition, WriteHandler>,
- Executor>
-{
- typedef typename associated_executor<WriteHandler, Executor>::type type;
-
- static type get(
- const detail::write_at_op<AsyncRandomAccessWriteDevice,
- ConstBufferSequence, ConstBufferIterator,
- CompletionCondition, WriteHandler>& h,
- const Executor& ex = Executor()) ASIO_NOEXCEPT
- {
- return associated_executor<WriteHandler, Executor>::get(h.handler_, ex);
- }
-};
-
-#endif // !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessWriteDevice, typename ConstBufferSequence,
- typename CompletionCondition, typename WriteHandler>
-inline ASIO_INITFN_RESULT_TYPE(WriteHandler,
- void (asio::error_code, std::size_t))
-async_write_at(AsyncRandomAccessWriteDevice& d,
- uint64_t offset, const ConstBufferSequence& buffers,
- CompletionCondition completion_condition,
- 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;
-
- async_completion<WriteHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::start_write_at_buffer_sequence_op(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), completion_condition,
- init.completion_handler);
-
- return init.result.get();
-}
-
-template <typename AsyncRandomAccessWriteDevice, typename ConstBufferSequence,
- typename WriteHandler>
-inline ASIO_INITFN_RESULT_TYPE(WriteHandler,
- void (asio::error_code, std::size_t))
-async_write_at(AsyncRandomAccessWriteDevice& d,
- uint64_t offset, 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;
-
- async_completion<WriteHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::start_write_at_buffer_sequence_op(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), transfer_all(),
- init.completion_handler);
-
- return init.result.get();
-}
-
-#if !defined(ASIO_NO_EXTENSIONS)
-#if !defined(ASIO_NO_IOSTREAM)
-
-namespace detail
-{
- template <typename Allocator, typename WriteHandler>
- class write_at_streambuf_op
- {
- public:
- write_at_streambuf_op(
- asio::basic_streambuf<Allocator>& streambuf,
- WriteHandler& handler)
- : streambuf_(streambuf),
- handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
- {
- }
-
-#if defined(ASIO_HAS_MOVE)
- write_at_streambuf_op(const write_at_streambuf_op& other)
- : streambuf_(other.streambuf_),
- handler_(other.handler_)
- {
- }
-
- write_at_streambuf_op(write_at_streambuf_op&& other)
- : streambuf_(other.streambuf_),
- handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
- {
- }
-#endif // defined(ASIO_HAS_MOVE)
-
- void operator()(const asio::error_code& ec,
- const std::size_t bytes_transferred)
- {
- streambuf_.consume(bytes_transferred);
- handler_(ec, bytes_transferred);
- }
-
- //private:
- asio::basic_streambuf<Allocator>& streambuf_;
- WriteHandler handler_;
- };
-
- template <typename Allocator, typename WriteHandler>
- inline void* asio_handler_allocate(std::size_t size,
- write_at_streambuf_op<Allocator, WriteHandler>* this_handler)
- {
- return asio_handler_alloc_helpers::allocate(
- size, this_handler->handler_);
- }
-
- template <typename Allocator, typename WriteHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
- write_at_streambuf_op<Allocator, WriteHandler>* this_handler)
- {
- asio_handler_alloc_helpers::deallocate(
- pointer, size, this_handler->handler_);
- }
-
- template <typename Allocator, typename WriteHandler>
- inline bool asio_handler_is_continuation(
- write_at_streambuf_op<Allocator, WriteHandler>* this_handler)
- {
- return asio_handler_cont_helpers::is_continuation(
- this_handler->handler_);
- }
-
- template <typename Function, typename Allocator, typename WriteHandler>
- inline void asio_handler_invoke(Function& function,
- write_at_streambuf_op<Allocator, WriteHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Function, typename Allocator, typename WriteHandler>
- inline void asio_handler_invoke(const Function& function,
- write_at_streambuf_op<Allocator, WriteHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Allocator, typename WriteHandler>
- inline write_at_streambuf_op<Allocator, WriteHandler>
- make_write_at_streambuf_op(
- asio::basic_streambuf<Allocator>& b, WriteHandler handler)
- {
- return write_at_streambuf_op<Allocator, WriteHandler>(b, handler);
- }
-} // namespace detail
-
-#if !defined(GENERATING_DOCUMENTATION)
-
-template <typename Allocator, typename WriteHandler, typename Allocator1>
-struct associated_allocator<
- detail::write_at_streambuf_op<Allocator, WriteHandler>,
- Allocator1>
-{
- typedef typename associated_allocator<WriteHandler, Allocator1>::type type;
-
- static type get(
- const detail::write_at_streambuf_op<Allocator, WriteHandler>& h,
- const Allocator1& a = Allocator1()) ASIO_NOEXCEPT
- {
- return associated_allocator<WriteHandler, Allocator1>::get(h.handler_, a);
- }
-};
-
-template <typename Executor, typename WriteHandler, typename Executor1>
-struct associated_executor<
- detail::write_at_streambuf_op<Executor, WriteHandler>,
- Executor1>
-{
- typedef typename associated_executor<WriteHandler, Executor1>::type type;
-
- static type get(
- const detail::write_at_streambuf_op<Executor, WriteHandler>& h,
- const Executor1& ex = Executor1()) ASIO_NOEXCEPT
- {
- return associated_executor<WriteHandler, Executor1>::get(h.handler_, ex);
- }
-};
-
-#endif // !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessWriteDevice, typename Allocator,
- typename CompletionCondition, typename WriteHandler>
-inline ASIO_INITFN_RESULT_TYPE(WriteHandler,
- void (asio::error_code, std::size_t))
-async_write_at(AsyncRandomAccessWriteDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- CompletionCondition completion_condition,
- 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;
-
- async_completion<WriteHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- async_write_at(d, offset, b.data(), completion_condition,
- detail::write_at_streambuf_op<Allocator, ASIO_HANDLER_TYPE(
- WriteHandler, void (asio::error_code, std::size_t))>(
- b, init.completion_handler));
-
- return init.result.get();
-}
-
-template <typename AsyncRandomAccessWriteDevice, typename Allocator,
- typename WriteHandler>
-inline ASIO_INITFN_RESULT_TYPE(WriteHandler,
- void (asio::error_code, std::size_t))
-async_write_at(AsyncRandomAccessWriteDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- 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;
-
- async_completion<WriteHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- async_write_at(d, offset, b.data(), transfer_all(),
- detail::write_at_streambuf_op<Allocator, ASIO_HANDLER_TYPE(
- WriteHandler, void (asio::error_code, std::size_t))>(
- b, init.completion_handler));
-
- return init.result.get();
-}
-
-#endif // !defined(ASIO_NO_IOSTREAM)
-#endif // !defined(ASIO_NO_EXTENSIONS)
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_IMPL_WRITE_AT_HPP