FM / impl

/usr/include/boost/asio/impl

Name	Size	Mode	Actions
awaitable.hpp	11748	0644	edit dl rm
buffered_read_stream.hpp	16925	0644	edit dl rm
buffered_write_stream.hpp	16429	0644	edit dl rm
compose.hpp	20461	0644	edit dl rm
connect.hpp	32234	0644	edit dl rm
co_spawn.hpp	8834	0644	edit dl rm
defer.hpp	7803	0644	edit dl rm
detached.hpp	3374	0644	edit dl rm
dispatch.hpp	7567	0644	edit dl rm
error.ipp	3070	0644	edit dl rm
execution_context.hpp	3247	0644	edit dl rm
execution_context.ipp	1801	0644	edit dl rm
executor.hpp	6835	0644	edit dl rm
executor.ipp	1002	0644	edit dl rm
handler_alloc_hook.ipp	1984	0644	edit dl rm
io_context.hpp	13728	0644	edit dl rm
io_context.ipp	4108	0644	edit dl rm
multiple_exceptions.ipp	1280	0644	edit dl rm
post.hpp	7762	0644	edit dl rm
read.hpp	45178	0644	edit dl rm
read_at.hpp	28331	0644	edit dl rm
read_until.hpp	115335	0644	edit dl rm
redirect_error.hpp	12015	0644	edit dl rm
serial_port_base.hpp	1375	0644	edit dl rm
serial_port_base.ipp	13327	0644	edit dl rm
spawn.hpp	15854	0644	edit dl rm
src.hpp	3833	0644	edit dl rm
system_context.hpp	875	0644	edit dl rm
system_context.ipp	2109	0644	edit dl rm
system_executor.hpp	6391	0644	edit dl rm
thread_pool.hpp	10853	0644	edit dl rm
thread_pool.ipp	3132	0644	edit dl rm
use_awaitable.hpp	7244	0644	edit dl rm
use_future.hpp	27610	0644	edit dl rm
write.hpp	41076	0644	edit dl rm
write_at.hpp	24732	0644	edit dl rm

Edit: /usr/include/boost/asio/impl/buffered_read_stream.hpp (16925B)

//
// impl/buffered_read_stream.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 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_IMPL_BUFFERED_READ_STREAM_HPP
#define BOOST_ASIO_IMPL_BUFFERED_READ_STREAM_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <boost/asio/associated_allocator.hpp>
#include <boost/asio/associated_executor.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_cont_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/handler_type_requirements.hpp>
#include <boost/asio/detail/non_const_lvalue.hpp>
#include <boost/asio/detail/type_traits.hpp>

#include <boost/asio/detail/push_options.hpp>

namespace boost {
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(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;
}

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_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler))
    {
    }

#if defined(BOOST_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_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_))
    {
    }
#endif // defined(BOOST_ASIO_HAS_MOVE)

void operator()(const boost::system::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 asio_handler_allocate_is_deprecated
  asio_handler_allocate(std::size_t size,
      buffered_fill_handler<ReadHandler>* this_handler)
  {
#if defined(BOOST_ASIO_NO_DEPRECATED)
    boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
    return asio_handler_allocate_is_no_longer_used();
#else // defined(BOOST_ASIO_NO_DEPRECATED)
    return boost_asio_handler_alloc_helpers::allocate(
        size, this_handler->handler_);
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename ReadHandler>
  inline asio_handler_deallocate_is_deprecated
  asio_handler_deallocate(void* pointer, std::size_t size,
      buffered_fill_handler<ReadHandler>* this_handler)
  {
    boost_asio_handler_alloc_helpers::deallocate(
        pointer, size, this_handler->handler_);
#if defined(BOOST_ASIO_NO_DEPRECATED)
    return asio_handler_deallocate_is_no_longer_used();
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename ReadHandler>
  inline bool asio_handler_is_continuation(
      buffered_fill_handler<ReadHandler>* this_handler)
  {
    return boost_asio_handler_cont_helpers::is_continuation(
          this_handler->handler_);
  }

template <typename Function, typename ReadHandler>
  inline asio_handler_invoke_is_deprecated
  asio_handler_invoke(Function& function,
      buffered_fill_handler<ReadHandler>* this_handler)
  {
    boost_asio_handler_invoke_helpers::invoke(
        function, this_handler->handler_);
#if defined(BOOST_ASIO_NO_DEPRECATED)
    return asio_handler_invoke_is_no_longer_used();
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename Function, typename ReadHandler>
  inline asio_handler_invoke_is_deprecated
  asio_handler_invoke(const Function& function,
      buffered_fill_handler<ReadHandler>* this_handler)
  {
    boost_asio_handler_invoke_helpers::invoke(
        function, this_handler->handler_);
#if defined(BOOST_ASIO_NO_DEPRECATED)
    return asio_handler_invoke_is_no_longer_used();
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename Stream>
  class initiate_async_buffered_fill
  {
  public:
    typedef typename remove_reference<
      Stream>::type::lowest_layer_type::executor_type executor_type;

explicit initiate_async_buffered_fill(
        typename remove_reference<Stream>::type& next_layer)
      : next_layer_(next_layer)
    {
    }

executor_type get_executor() const BOOST_ASIO_NOEXCEPT
    {
      return next_layer_.lowest_layer().get_executor();
    }

template <typename ReadHandler>
    void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler,
        buffered_stream_storage* storage) const
    {
      // If you get an error on the following line it means that your handler
      // does not meet the documented type requirements for a ReadHandler.
      BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;

non_const_lvalue<ReadHandler> handler2(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),
          buffered_fill_handler<typename decay<ReadHandler>::type>(
            *storage, previous_size, handler2.value));
    }

private:
    typename remove_reference<Stream>::type& next_layer_;
  };
} // 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()) BOOST_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()) BOOST_ASIO_NOEXCEPT
  {
    return associated_executor<ReadHandler, Executor>::get(h.handler_, ex);
  }
};

#endif // !defined(GENERATING_DOCUMENTATION)

template <typename Stream>
template <
    BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code,
      std::size_t)) ReadHandler>
BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
    void (boost::system::error_code, std::size_t))
buffered_read_stream<Stream>::async_fill(
    BOOST_ASIO_MOVE_ARG(ReadHandler) handler)
{
  return async_initiate<ReadHandler,
    void (boost::system::error_code, std::size_t)>(
      detail::initiate_async_buffered_fill<Stream>(next_layer_),
      handler, &storage_);
}

template <typename Stream>
template <typename MutableBufferSequence>
std::size_t buffered_read_stream<Stream>::read_some(
    const MutableBufferSequence& buffers)
{
  using boost::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, boost::system::error_code& ec)
{
  ec = boost::system::error_code();

using boost::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_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler))
    {
    }

#if defined(BOOST_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_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_))
      {
      }
#endif // defined(BOOST_ASIO_HAS_MOVE)

void operator()(const boost::system::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 = boost::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 asio_handler_allocate_is_deprecated
  asio_handler_allocate(std::size_t size,
      buffered_read_some_handler<
        MutableBufferSequence, ReadHandler>* this_handler)
  {
#if defined(BOOST_ASIO_NO_DEPRECATED)
    boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
    return asio_handler_allocate_is_no_longer_used();
#else // defined(BOOST_ASIO_NO_DEPRECATED)
    return boost_asio_handler_alloc_helpers::allocate(
        size, this_handler->handler_);
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename MutableBufferSequence, typename ReadHandler>
  inline asio_handler_deallocate_is_deprecated
  asio_handler_deallocate(void* pointer, std::size_t size,
      buffered_read_some_handler<
        MutableBufferSequence, ReadHandler>* this_handler)
  {
    boost_asio_handler_alloc_helpers::deallocate(
        pointer, size, this_handler->handler_);
#if defined(BOOST_ASIO_NO_DEPRECATED)
    return asio_handler_deallocate_is_no_longer_used();
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename MutableBufferSequence, typename ReadHandler>
  inline bool asio_handler_is_continuation(
      buffered_read_some_handler<
        MutableBufferSequence, ReadHandler>* this_handler)
  {
    return boost_asio_handler_cont_helpers::is_continuation(
          this_handler->handler_);
  }

template <typename Function, typename MutableBufferSequence,
      typename ReadHandler>
  inline asio_handler_invoke_is_deprecated
  asio_handler_invoke(Function& function,
      buffered_read_some_handler<
        MutableBufferSequence, ReadHandler>* this_handler)
  {
    boost_asio_handler_invoke_helpers::invoke(
        function, this_handler->handler_);
#if defined(BOOST_ASIO_NO_DEPRECATED)
    return asio_handler_invoke_is_no_longer_used();
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename Function, typename MutableBufferSequence,
      typename ReadHandler>
  inline asio_handler_invoke_is_deprecated
  asio_handler_invoke(const Function& function,
      buffered_read_some_handler<
        MutableBufferSequence, ReadHandler>* this_handler)
  {
    boost_asio_handler_invoke_helpers::invoke(
        function, this_handler->handler_);
#if defined(BOOST_ASIO_NO_DEPRECATED)
    return asio_handler_invoke_is_no_longer_used();
#endif // defined(BOOST_ASIO_NO_DEPRECATED)
  }

template <typename Stream>
  class initiate_async_buffered_read_some
  {
  public:
    typedef typename remove_reference<
      Stream>::type::lowest_layer_type::executor_type executor_type;

explicit initiate_async_buffered_read_some(
        typename remove_reference<Stream>::type& next_layer)
      : next_layer_(next_layer)
    {
    }

executor_type get_executor() const BOOST_ASIO_NOEXCEPT
    {
      return next_layer_.lowest_layer().get_executor();
    }

template <typename ReadHandler, typename MutableBufferSequence>
    void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler,
        buffered_stream_storage* storage,
        const MutableBufferSequence& buffers) const
    {
      // If you get an error on the following line it means that your handler
      // does not meet the documented type requirements for a ReadHandler.
      BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;

using boost::asio::buffer_size;
      non_const_lvalue<ReadHandler> handler2(handler);
      if (buffer_size(buffers) == 0 || !storage->empty())
      {
        next_layer_.async_read_some(BOOST_ASIO_MUTABLE_BUFFER(0, 0),
            buffered_read_some_handler<MutableBufferSequence,
              typename decay<ReadHandler>::type>(
                *storage, buffers, handler2.value));
      }
      else
      {
        initiate_async_buffered_fill<Stream>(this->next_layer_)(
            buffered_read_some_handler<MutableBufferSequence,
              typename decay<ReadHandler>::type>(
                *storage, buffers, handler2.value),
            storage);
      }
    }

private:
    typename remove_reference<Stream>::type& next_layer_;
  };
} // 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()) BOOST_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()) BOOST_ASIO_NOEXCEPT
  {
    return associated_executor<ReadHandler, Executor>::get(h.handler_, ex);
  }
};

#endif // !defined(GENERATING_DOCUMENTATION)

template <typename Stream>
template <typename MutableBufferSequence,
    BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code,
      std::size_t)) ReadHandler>
BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
    void (boost::system::error_code, std::size_t))
buffered_read_stream<Stream>::async_read_some(
    const MutableBufferSequence& buffers,
    BOOST_ASIO_MOVE_ARG(ReadHandler) handler)
{
  return async_initiate<ReadHandler,
    void (boost::system::error_code, std::size_t)>(
      detail::initiate_async_buffered_read_some<Stream>(next_layer_),
      handler, &storage_, buffers);
}

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, boost::system::error_code& ec)
{
  ec = boost::system::error_code();
  if (storage_.empty() && !this->fill(ec))
    return 0;
  return this->peek_copy(buffers);
}

} // namespace asio
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#endif // BOOST_ASIO_IMPL_BUFFERED_READ_STREAM_HPP

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