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Name	Size	Mode	Actions
impl/	-	0755	rm
allocator.hpp	945	0644	edit dl rm
async_base.hpp	901	0644	edit dl rm
base64.hpp	1942	0644	edit dl rm
base64.ipp	6170	0644	edit dl rm
bind_continuation.hpp	3504	0644	edit dl rm
bind_default_executor.hpp	3243	0644	edit dl rm
bind_handler.hpp	10959	0644	edit dl rm
buffer.hpp	1825	0644	edit dl rm
buffers_pair.hpp	2636	0644	edit dl rm
buffers_range_adaptor.hpp	2651	0644	edit dl rm
buffers_ref.hpp	1648	0644	edit dl rm
buffer_traits.hpp	2095	0644	edit dl rm
chacha.hpp	4167	0644	edit dl rm
char_buffer.hpp	1407	0644	edit dl rm
clamp.hpp	1229	0644	edit dl rm
config.hpp	2884	0644	edit dl rm
cpu_info.hpp	1787	0644	edit dl rm
flat_stream.hpp	1919	0644	edit dl rm
get_io_context.hpp	2338	0644	edit dl rm
is_invocable.hpp	1888	0644	edit dl rm
ostream.hpp	7004	0644	edit dl rm
pcg.hpp	1464	0644	edit dl rm
read.hpp	9217	0644	edit dl rm
remap_post_to_defer.hpp	2152	0644	edit dl rm
service_base.hpp	850	0644	edit dl rm
sha1.hpp	1624	0644	edit dl rm
sha1.ipp	7998	0644	edit dl rm
static_const.hpp	1154	0644	edit dl rm
static_ostream.hpp	3030	0644	edit dl rm
static_string.hpp	3030	0644	edit dl rm
stream_base.hpp	2685	0644	edit dl rm
stream_traits.hpp	2796	0644	edit dl rm
string.hpp	898	0644	edit dl rm
temporary_buffer.hpp	1611	0644	edit dl rm
tuple.hpp	2194	0644	edit dl rm
type_traits.hpp	2779	0644	edit dl rm
variant.hpp	4889	0644	edit dl rm
varint.hpp	1712	0644	edit dl rm
win32_unicode_path.hpp	2148	0644	edit dl rm
work_guard.hpp	1851	0644	edit dl rm

Edit: /usr/include/boost/beast/core/detail/read.hpp (9217B)

//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail 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)
//
// Official repository: https://github.com/boostorg/beast
//

#ifndef BOOST_BEAST_DETAIL_READ_HPP
#define BOOST_BEAST_DETAIL_READ_HPP

#include <boost/beast/core/detail/config.hpp>
#include <boost/beast/core/error.hpp>
#include <boost/beast/core/stream_traits.hpp>
#include <boost/beast/core/detail/is_invocable.hpp>
#include <boost/asio/async_result.hpp>
#include <cstdlib>

namespace boost {
namespace beast {
namespace detail {

//------------------------------------------------------------------------------

/** Read data into a dynamic buffer from a stream until a condition is met.
    
    This function is used to read from a stream into a dynamic buffer until
    a condition is met. The call will block until one of the following is true:
    
    @li The specified dynamic buffer sequence is full (that is, it has
        reached its currently configured maximum size).

@li The `completion_condition` function object returns 0.

This operation is implemented in terms of zero or more calls to the
 stream's `read_some` function.
 
 @param stream The stream from which the data is to be read. The type
 must support the SyncReadStream requirements.
 
 @param buffer The dynamic buffer sequence into which the data will be read.
 
 @param completion_condition The function object to be called to determine
 whether the read operation is complete. The function object must be invocable
 with this signature:
 @code
 std::size_t
 completion_condition(
 // Modifiable result of latest read_some operation. 
 error_code& ec,
 
 // Number of bytes transferred so far.
 std::size_t bytes_transferred

// The dynamic buffer used to store the bytes read
        DynamicBuffer& buffer
    );
    @endcode
    A non-zero return value indicates the maximum number of bytes to be read on
    the next call to the stream's `read_some` function. A return value of 0
    from the completion condition indicates that the read operation is complete;
    in this case the optionally modifiable error passed to the completion
    condition will be delivered to the caller as an exception.

@returns The number of bytes transferred from the stream.

@throws net::system_error Thrown on failure.
*/ 
template<
 class SyncReadStream,
 class DynamicBuffer,
 class CompletionCondition
#if ! BOOST_BEAST_DOXYGEN
 , class = typename std::enable_if<
 is_sync_read_stream<SyncReadStream>::value &&
 net::is_dynamic_buffer<DynamicBuffer>::value &&
 detail::is_invocable<CompletionCondition,
 void(error_code&, std::size_t, DynamicBuffer&)>::value
 >::type
#endif
>
std::size_t
read(
 SyncReadStream& stream,
 DynamicBuffer& buffer,
 CompletionCondition completion_condition);

@li The `completion_condition` function object returns 0.
 
 This operation is implemented in terms of zero or more calls to the
 stream's `read_some` function.
 
 @param stream The stream from which the data is to be read. The type
 must support the SyncReadStream requirements.
 
 @param buffer The dynamic buffer sequence into which the data will be read.
 
 @param completion_condition The function object to be called to determine
 whether the read operation is complete. The function object must be invocable
 with this signature:
 @code
 std::size_t
 completion_condition(
 // Modifiable result of latest read_some operation. 
 error_code& ec,
 
 // Number of bytes transferred so far.
 std::size_t bytes_transferred

@returns The number of bytes transferred from the stream.
*/ 
template<
 class SyncReadStream,
 class DynamicBuffer,
 class CompletionCondition
#if ! BOOST_BEAST_DOXYGEN
 , class = typename std::enable_if<
 is_sync_read_stream<SyncReadStream>::value &&
 net::is_dynamic_buffer<DynamicBuffer>::value &&
 detail::is_invocable<CompletionCondition,
 void(error_code&, std::size_t, DynamicBuffer&)>::value
 >::type
#endif
>
std::size_t
read(
 SyncReadStream& stream,
 DynamicBuffer& buffer,
 CompletionCondition completion_condition,
 error_code& ec);

/** Asynchronously read data into a dynamic buffer from a stream until a condition is met.
    
    This function is used to asynchronously read from a stream into a dynamic
    buffer until a condition is met. The function call always returns immediately.
    The asynchronous operation will continue until one of the following is true:
    
    @li The specified dynamic buffer sequence is full (that is, it has
        reached its currently configured maximum size).

@li The `completion_condition` function object returns 0.
 
 This operation is implemented in terms of zero or more calls to the stream's
 `async_read_some` function, and is known as a composed operation. The
 program must ensure that the stream performs no other read operations (such
 as `async_read`, the stream's `async_read_some` function, or any other composed
 operations that perform reads) until this operation completes.
 
 @param stream The stream from which the data is to be read. The type must
 support the AsyncReadStream requirements.
 
 @param buffer The dynamic buffer sequence into which the data will be read.
 Ownership of the object is retained by the caller, which must guarantee
 that it remains valid until the handler is called.

@param completion_condition The function object to be called to determine
    whether the read operation is complete. The function object must be invocable
    with this signature:
    @code
    std::size_t
    completion_condition(
        // Modifiable result of latest async_read_some operation. 
        error_code& ec,

// Number of bytes transferred so far.
        std::size_t bytes_transferred,

// The dynamic buffer used to store the bytes read
        DynamicBuffer& buffer
    );
    @endcode
    A non-zero return value indicates the maximum number of bytes to be read on
    the next call to the stream's `async_read_some` function. A return value of 0
    from the completion condition indicates that the read operation is complete;
    in this case the optionally modifiable error passed to the completion
    condition will be delivered to the completion handler.

@param handler The completion handler to invoke when the operation
    completes. The implementation takes ownership of the handler by
    performing a decay-copy. The equivalent function signature of
    the handler must be:
    @code
    void
    handler(
        error_code const& ec,               // Result of operation.

std::size_t bytes_transferred // Number of bytes copied into
 // the dynamic buffer. If an error
 // occurred, this will be the number
 // of bytes successfully transferred
 // prior to the error.
 );
 @endcode
 Regardless of whether the asynchronous operation completes
 immediately or not, the handler will not be invoked from within
 this function. Invocation of the handler will be performed in a
 manner equivalent to using `net::post`.
*/
template<
 class AsyncReadStream,
 class DynamicBuffer,
 class CompletionCondition,
 BOOST_BEAST_ASYNC_TPARAM2 ReadHandler
#if ! BOOST_BEAST_DOXYGEN
 , class = typename std::enable_if<
 is_async_read_stream<AsyncReadStream>::value &&
 net::is_dynamic_buffer<DynamicBuffer>::value &&
 detail::is_invocable<CompletionCondition,
 void(error_code&, std::size_t, DynamicBuffer&)>::value
 >::type
#endif
>
BOOST_BEAST_ASYNC_RESULT2(ReadHandler)
async_read(
 AsyncReadStream& stream,
 DynamicBuffer& buffer,
 CompletionCondition&& completion_condition,
 ReadHandler&& handler);

} // detail
} // beast
} // boost

#include <boost/beast/core/detail/impl/read.hpp>

#endif

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