et
(et)Main API of the Event Trace (ET) application
Interface module for the Event Trace (ET) application
Functions
trace_me(DetailLevel, From, To, Label, Contents) -> hopefully_traced
DetailLevel = integer(X) when X =< 0, X >= 100
From = actor()
To = actor()
Label = atom() | string() | term()
Contents = [{Key, Value}] | term()
actor() = term()
A function that is intended to be traced.
This function is intended to be invoked at strategic places
in user applications in order to enable simplified
tracing. The functions are extremely light weight as they do
nothing besides returning an atom. The functions are designed
for being traced. The global tracing mechanism in
et_collector
defaults to set its trace pattern to these
functions.
The label is intended to provide a brief summary of the event. It is preferred to use an atom but a string would also do.
The contents can be any term but in order to simplify post processing of the traced events, a plain list of {Key, Value} tuples is preferred.
Some events, such as messages, are directed from some actor to another. Other events (termed actions) may be undirected and only have one actor.
trace_me(DetailLevel, FromTo, Label, Contents) -> hopefully_traced
Invokes et:trace_me/5
with both From
and To
set to FromTo
.
phone_home(DetailLevel, FromTo, Label, Contents) -> hopefully_traced
phone_home(DetailLevel, From, To, Label, Contents) -> hopefully_traced
These functions sends a signal to the outer space and the
caller hopes that someone is listening. In other words, they
invoke et:trace_me/4
and et:trace_me/5
respectively.
report_event(DetailLevel, FromTo, Label, Contents) -> hopefully_traced
report_event(DetailLevel, From, To, Label, Contents) -> hopefully_traced
Deprecated functions which for the time being are kept for
backwards compatibility. Invokes et:trace_me/4
and
et:trace_me/5
respectively.