fastmm::venues::BatchedOrders Class Reference

The orders a venue encoded into a corked connection. More...

#include <fastmm/venues/wire_latency.hpp>

Classes
struct	Entry

Public Member Functions
void	clear () noexcept
void	note (const OrderCommand &c) noexcept
std::span< const Entry >	entries () const noexcept

Detailed Description

The orders a venue encoded into a corked connection.

Between cork() and uncork() a frame is only queued, so a failed uncork() means none of them reached the venue and the venue must reject them instead of leaving the engine with orders it believes are live. Only the fields a reject needs are kept, because the ring slots are released before uncork() runs.

An order whose frame filled the send buffer mid-batch did leave (send_frame() flushes then), and gets rejected here too. That is the safe error: uncork() only fails when the connection failed, and the venue answers that by cancelling everything over the control path.

Member Function Documentation

clear()

void fastmm::venues::BatchedOrders::clear ( )

inlinenoexcept

note()

void fastmm::venues::BatchedOrders::note ( const OrderCommand &  c )

inlinenoexcept

entries()

std::span< const Entry > fastmm::venues::BatchedOrders::entries ( ) const

inlinenoexcept