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class write_command_state

Declaration

class write_command_state { /* full declaration omitted */ };

Description

write_command_state is a command_id with two bits of additional information: - Whether the data written by this command is globally still the newest version ("fresh" or "stale") - Whether this data has been replicated from somewhere else, i.e., we are not the original producer

Member Variables

command_id m_cid = 0
static const int64_t stale_bit = 1LL << 63
static const int64_t replicated_bit = 1LL << 62

Member Function Overview

Friend Function Overview

  • operator!=(const write_command_state & lhs, const write_command_state & rhs) → friend bool
  • operator==(const write_command_state & lhs, const write_command_state & rhs) → friend bool

Member Functions

bool is_fresh() const

bool is_replicated() const

void mark_as_stale()

operator command_id() const

write_command_state()

constexpr write_command_state(command_id cid)

Parameters

command_id cid

constexpr write_command_state(command_id cid,
                              bool is_replicated)

Parameters

command_id cid
bool is_replicated

Friend Functions

friend bool operator!=(
    const write_command_state& lhs,
    const write_command_state& rhs)

Parameters

const write_command_state& lhs
const write_command_state& rhs

friend bool operator==(
    const write_command_state& lhs,
    const write_command_state& rhs)

Parameters

const write_command_state& lhs
const write_command_state& rhs