package trace

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A stub for tracing/observability, agnostic in how data is collected

Install

Dune Dependency

github.com Readme Changelog Edit opam file Versions (11)

Authors

S

Simon Cruanes

Maintainers

S

Simon Cruanes

Sources

trace-0.10.tbz

sha256=c5a43827bbd5521e779c8856e44f4c718dccda902d00a242b598516110ada04d

sha512=f19cb25a767ed428cb1d4a497312267524bfaaf9550caa5fc1e84809494f0b7eaf26030d95563c75dea66606fcbec1be7e34baa4cba86fc57d64bc5d5b98efd5

doc/trace.subscriber/Trace_subscriber/Subscriber/index.html

Module `Trace_subscriber.Subscriber`Source

Trace subscribers

Sourcetype t =

| Sub : {
1. st : 'st;
2. callbacks : 'st Callbacks.t;
} -> t

A trace subscriber. It pairs a set of callbacks with the state they need (which can contain a file handle, a socket to write events to, config, etc.).

The design goal for this is that it should be possible to avoid allocations whenever the trace collector invokes the callbacks.

Sourceval dummy : t

Dummy subscriber that ignores every call.

Sourceval tee_l : t list -> t

Tee multiple subscribers, ie return a subscriber that forwards to all the subscribers in subs.

Sourceval tee : t -> t -> t

tee s1 s2 is a subscriber that forwards every call to s1 and s2 both.