classic_protocol::impl::EncodeBufferAccumulator Class Reference

accumulator of encoded buffers. More...

#include <classic_protocol_codec_base.h>

Public Types
using	result_type = stdx::expected< size_t, std::error_code >

Public Member Functions
	EncodeBufferAccumulator (net::mutable_buffer buffer, capabilities::value_type caps, size_t consumed=0)
	construct a encode-buffer-accumulator. More...
template<class T >
EncodeBufferAccumulator &	step (const T &v)
	encode a T into the buffer and move position forward. More...
result_type	result () const
	get result the steps(). More...

Private Attributes
const net::mutable_buffer	buffer_
const capabilities::value_type	caps_
size_t	consumed_ {}
result_type	res_

Detailed Description

accumulator of encoded buffers.

writes the .step()ed encoded types into buffer.

EncodeBufferAccumulator(buffer, caps) .step(wire::VarInt(42)) .step(wire::VarInt(512)) .result()

The class should be used together with EncodeSizeAccumulator which shares the same interface.

Member Typedef Documentation

result_type

using classic_protocol::impl::EncodeBufferAccumulator::result_type = stdx::expected<size_t, std::error_code>

Constructor & Destructor Documentation

EncodeBufferAccumulator()

classic_protocol::impl::EncodeBufferAccumulator::EncodeBufferAccumulator ( net::mutable_buffer  buffer, capabilities::value_type  caps, size_t  consumed = 0  )

inline

construct a encode-buffer-accumulator.

Parameters

buffer	mutable-buffer to encode into
caps	protocol capabilities
consumed	bytes already used in the in buffer

Member Function Documentation

result()

result_type classic_protocol::impl::EncodeBufferAccumulator::result ( ) const

inline

get result the steps().

Returns

last used position in buffer, or first error in case of a step() failed.

step()

template<class T >

EncodeBufferAccumulator & classic_protocol::impl::EncodeBufferAccumulator::step ( const T &  v )

inline

encode a T into the buffer and move position forward.

no-op of a previous step failed.

Member Data Documentation

buffer_

const net::mutable_buffer classic_protocol::impl::EncodeBufferAccumulator::buffer_

private

caps_

const capabilities::value_type classic_protocol::impl::EncodeBufferAccumulator::caps_

private

consumed_

size_t classic_protocol::impl::EncodeBufferAccumulator::consumed_ {}

private

res_

result_type classic_protocol::impl::EncodeBufferAccumulator::res_

private

---

The documentation for this class was generated from the following file:

• router/src/mysql_protocol/include/mysqlrouter/classic_protocol_codec_base.h