Module delay_stats 

Internal shared API — C++ INNData_ProtoDelay-style local delay statistics.

This lives in futu-core so public TCP surfaces and backend request paths can record into one process-wide store without forcing lower-level network crates to depend on futu-backend. C++ INNData_ProtoDelay-style local delay statistics.

The request/reply statistic needs to observe both public API dispatch and backend request spans. Public API dispatch is wired from futu-server, while backend spans are wired in BackendConn::request_with_reserved_timeout. Keeping this store in futu-core avoids a dependency from futu-server back to the whole backend crate while preserving one process-wide stats store.

Structs

DelayStatisticsItemSnapshot

PlaceOrderStatisticsSnapshot

QotPushDelaySample

QotPushStatisticsSnapshot

ReqReplyStatisticsSnapshot

Enums

QotPushDelayRecordOutcome

Constants

QOT_PUSH_TYPE_BROKER

QOT_PUSH_TYPE_ORDER_BOOK

QOT_PUSH_TYPE_PRICE

QOT_PUSH_TYPE_TICKER

Functions

qot_push_max_server_recv_time_ms

Select the server recv time used for QOT push delay statistics.

qot_push_should_sample_delay

Decide whether a QOT push should contribute to delay statistics.

record_place_order_request

Attach successful Trd_PlaceOrder user data to the current API request. Calls outside with_api_request are intentionally no-op.

record_place_order_update_push

Record one Trd_UpdateOrder push candidate for PlaceOrder update-cost statistics.

record_qot_push_count

record_qot_push_count_if_sampled

set_time_adjustment

Update the server-to-client clock correction used by QOT push delay statistics.

snapshot_place_order_statistics

snapshot_qot_push_statistics

snapshot_req_reply_statistics

trace_backend_request

Record a backend request span for the API request currently executing on this Tokio task. Calls outside public API dispatch are intentionally no-op, matching C++’s explicit ReqReply_RelatedAPISvrReq linking model.

with_api_request

Run a public API handler inside the current request/reply delay context.