classic_protocol::Codec< borrowable::wire::VarInt > Class Reference

codec for variable length integers. More...

#include <classic_protocol_codec_wire.h>

Inheritance diagram for classic_protocol::Codec< borrowable::wire::VarInt >:

Public Types
using	value_type = borrowable::wire::VarInt
using	__base = impl::EncodeBase< Codec< value_type > >

Public Member Functions
constexpr	Codec (value_type v, capabilities::value_type caps)
Public Member Functions inherited from classic_protocol::impl::EncodeBase< Codec< borrowable::wire::VarInt > >
constexpr	EncodeBase (capabilities::value_type caps)
constexpr size_t	size () const noexcept
stdx::expected< size_t, std::error_code >	encode (net::mutable_buffer buffer) const
constexpr capabilities::value_type	caps () const noexcept

Static Public Member Functions
static constexpr size_t	max_size () noexcept
static stdx::expected< std::pair< size_t, value_type >, std::error_code >	decode (const net::const_buffer &buffer, capabilities::value_type caps)

Public Attributes
friend	__base

Static Public Attributes
static constexpr uint8_t	varint_16 {0xfc}
static constexpr uint8_t	varint_24 {0xfd}
static constexpr uint8_t	varint_64 {0xfe}

Private Member Functions
template<class Accumulator >
constexpr auto	accumulate_fields (Accumulator &&accu) const

Private Attributes
const value_type	v_

Detailed Description

codec for variable length integers.

note: encoded as little endian

0x00
...
0xfa -> 0xfa
0xfb [undefined]
0xfc 0x.. 0x..
0xfd 0x.. 0x.. 0x..

3.21:
0xfe 0x.. 0x.. 0x.. 0x.. 0x00
[1 + 5 bytes read, only 4 bytes used]

4.0:
0xfe 0x.. 0x.. 0x.. 0x.. 0x.. 0x.. 0x.. 0x..
[1 + 8 bytes read, only 4 bytes used]

Member Typedef Documentation

__base

using classic_protocol::Codec< borrowable::wire::VarInt >::__base = impl::EncodeBase<Codec<value_type> >

value_type

using classic_protocol::Codec< borrowable::wire::VarInt >::value_type = borrowable::wire::VarInt

Constructor & Destructor Documentation

Codec()

constexpr classic_protocol::Codec< borrowable::wire::VarInt >::Codec ( value_type  v, capabilities::value_type  caps  )

inlineconstexpr

Member Function Documentation

accumulate_fields()

template<class Accumulator >

constexpr auto classic_protocol::Codec< borrowable::wire::VarInt >::accumulate_fields ( Accumulator &&  accu ) const

inlineconstexprprivate

decode()

static stdx::expected< std::pair< size_t, value_type >, std::error_code > classic_protocol::Codec< borrowable::wire::VarInt >::decode ( const net::const_buffer &  buffer, capabilities::value_type  caps  )

inlinestatic

max_size()

static constexpr size_t classic_protocol::Codec< borrowable::wire::VarInt >::max_size ( )

inlinestaticconstexprnoexcept

Member Data Documentation

__base

friend classic_protocol::Codec< borrowable::wire::VarInt >::__base

v_

const value_type classic_protocol::Codec< borrowable::wire::VarInt >::v_

private

varint_16

constexpr uint8_t classic_protocol::Codec< borrowable::wire::VarInt >::varint_16 {0xfc}

staticconstexpr

varint_24

constexpr uint8_t classic_protocol::Codec< borrowable::wire::VarInt >::varint_24 {0xfd}

staticconstexpr

varint_64

constexpr uint8_t classic_protocol::Codec< borrowable::wire::VarInt >::varint_64 {0xfe}

staticconstexpr

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

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