Module `Subscriber.Callbacks`Source

Sourcetype st = event_consumer

Type of the state passed to every callback.

Sourceval on_init : st -> time_ns:int64 -> unit

Called when the subscriber is initialized in a collector

Sourceval on_shutdown : st -> time_ns:int64 -> unit

Called when the collector is shutdown

Sourceval on_name_thread : st -> time_ns:int64 -> tid:int -> name:string -> unit

Current thread is being named

Sourceval on_name_process : st -> time_ns:int64 -> tid:int -> name:string -> unit

Current process is being named

Source

val on_enter_span : 
  st ->
  __FUNCTION__:string option ->
  __FILE__:string ->
  __LINE__:int ->
  time_ns:int64 ->
  tid:int ->
  data:(string * Trace_subscriber__.Types.user_data) list ->
  name:string ->
  Trace_core.span ->
  unit

Enter a regular (sync) span

Sourceval on_exit_span : st -> time_ns:int64 -> tid:int -> Trace_core.span -> unit

Exit a span. This and on_enter_span must follow strict stack discipline

Source

val on_add_data : 
  st ->
  data:(string * Trace_subscriber__.Types.user_data) list ->
  Trace_core.span ->
  unit

Add data to a regular span (which must be active)

Source

val on_message : 
  st ->
  time_ns:int64 ->
  tid:int ->
  span:Trace_core.span option ->
  data:(string * Trace_subscriber__.Types.user_data) list ->
  string ->
  unit

Emit a log message

Source

val on_counter : 
  st ->
  time_ns:int64 ->
  tid:int ->
  data:(string * Trace_subscriber__.Types.user_data) list ->
  name:string ->
  float ->
  unit

Emit the current value of a counter

Source

val on_enter_manual_span : 
  st ->
  __FUNCTION__:string option ->
  __FILE__:string ->
  __LINE__:int ->
  time_ns:int64 ->
  tid:int ->
  parent:Trace_core.span option ->
  data:(string * Trace_subscriber__.Types.user_data) list ->
  name:string ->
  flavor:Trace_subscriber__.Types.flavor option ->
  trace_id:Trace_core.trace_id ->
  Trace_core.span ->
  unit

Enter a manual (possibly async) span

Source

val on_exit_manual_span : 
  st ->
  time_ns:int64 ->
  tid:int ->
  name:string ->
  data:(string * Trace_subscriber__.Types.user_data) list ->
  flavor:Trace_subscriber__.Types.flavor option ->
  trace_id:Trace_core.trace_id ->
  Trace_core.span ->
  unit

Exit a manual span

Source

val on_extension_event : 
  st ->
  time_ns:int64 ->
  tid:int ->
  Trace_core.extension_event ->
  unit

Extension event

since 0.8

Install

Dune Dependency

Authors

Maintainers

Sources

doc/trace.event/Trace_event/Subscriber/Callbacks/index.html

Module `Subscriber.Callbacks`Source

package trace

Install

Dune Dependency

Authors

Maintainers

Sources

doc/trace.event/Trace_event/Subscriber/Callbacks/index.html

Module Subscriber.CallbacksSource

Module `Subscriber.Callbacks`Source