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inviso_rt_meta(3erl) | Erlang Module Definition | inviso_rt_meta(3erl) |
NAME¶
inviso_rt_meta - Direct API to the Inviso Runtime Component's meta tracerDESCRIPTION¶
This module provides a direct API to the inviso meta tracer. These functions are only meant to be used in meta tracing CallFunc and RemoveFunc. It can sometimes be necessary to manipulate meta match-patterns from CallFuncs and RemoveFuncs. The problem then is that call-funcs and remove-funcs are meta trace call-backs executed inside the inviso meta tracer's context. Hence making calls to the regular API's manipulating meta trace-patterns will hang the inviso meta tracer!. To remedy this problem, a number of useful tpm-functions are available in this API. It must be understood that their actions are local to the Erlang node where they are called.EXPORTS¶
tpm_ms(Mod,Func,Arity,MSname,MS) -> {ok,0} | {ok,1} | {error,not_initiated}
See inviso:tpm_ms/6 for details. Note that this function only effects meta
trace-patterns on the Erlang node where the function is called. This also
implies that only the local inviso meta tracer's name-database is updated with
MSname.
See inviso:tpm_ms_ms/6 for details. Note that this function only effects meta
trace-patterns on the Erlang node where the function is called. This also
implies that only the local inviso meta tracer's name-database is updated with
MSname.
Returns a list of all MSname in use for Mod:Func/Arity. This can
be useful instead of having to have an own-implemented database over currently
in use meta match-functions for a particular function.
See inviso:ctpm_ms/5 for details. Note that this function only effects meta
trace-patterns on the Erlang node where the function is called. This also
implies that only the local inviso meta tracer's name-database is updated with
MSname.
Types:
Tracer = pid() | port()
Returns the pid or port acting as the receiver of regular trace messages. This
is useful if it is necessary to manipulate meta trace-patterns by hand (using
erlang:trace_pattern/3) and the {tracer,Tracer} must be used in
one of the match-function bodies.
inviso 0.6.3 | Ericsson AB |