package trace

  1. Overview
  2. Docs
A stub for tracing/observability, agnostic in how data is collected

Install 

dune-project
 Dependency

github.com Readme Changelog Edit opam file Versions (12)

Authors

  1. S
    Simon Cruanes

Maintainers

  1. S
    Simon Cruanes

Sources

trace-0.10.1.tbz
sha256=0b5121a2b3ca0f0d850017865333259f313ce83f77bba54da956f9cafbba6e34
sha512=06476b3b450d3f382ba7e5287591e2bb0f928d38b698af0bd6083d1518fcac93bf498815710d26ecbe9c80c71888638919c0166a79e447ee64ed625afd56dc4b

doc/trace.subscriber/Trace_subscriber/Callbacks/Dummy/index.html

Module Callbacks.DummySource

Dummy callbacks. It can be useful to reuse some of these functions in a real subscriber that doesn't want to handle all events, but only some of them.

To write a subscriber that only supports some callbacks, this can be handy:

  module My_callbacks = struct
  type st = my_own_state
  include Callbacks.Dummy
  let on_counter (st:st) ~time_ns ~tid ~data ~name v : unit = ...
  end
Sourceval on_init : 'a -> time_ns:'b -> unit
Sourceval on_shutdown : 'a -> time_ns:'b -> unit
Sourceval on_name_thread : 'a -> time_ns:'b -> tid:'c -> name:'d -> unit
Sourceval on_name_process : 'a -> time_ns:'b -> tid:'c -> name:'d -> unit
Sourceval on_message : 'a -> time_ns:'b -> tid:'c -> span:'d -> data:'e -> 'f -> unit
Sourceval on_counter : 'a -> time_ns:'b -> tid:'c -> data:'d -> name:'e -> 'f -> unit
Sourceval on_enter_span : 'a -> __FUNCTION__:'b -> __FILE__:'c -> __LINE__:'d -> time_ns:'e -> tid:'f -> data:'g -> name:'h -> 'i -> unit
Sourceval on_exit_span : 'a -> time_ns:'b -> tid:'c -> 'd -> unit
Sourceval on_add_data : 'a -> data:'b -> 'c -> unit
Sourceval on_enter_manual_span : 'a -> __FUNCTION__:'b -> __FILE__:'c -> __LINE__:'d -> time_ns:'e -> tid:'f -> parent:'g -> data:'h -> name:'i -> flavor:'j -> trace_id:'k -> 'l -> unit
Sourceval on_exit_manual_span : 'a -> time_ns:'b -> tid:'c -> name:'d -> data:'e -> flavor:'f -> trace_id:'g -> 'h -> unit
Sourceval on_extension_event : 'a -> time_ns:'b -> tid:'c -> 'd -> unit