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ivalentinee/print_elixir_stacktrace.ex

Created June 27, 2018 18:09
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print_elixir_stacktrace.ex
print_trace = fn(print_trace, fd) ->
receive do
msg ->
:io.format(fd, "call: (tracer pid: ~p)~n ~p~n", [self(), msg])
print_trace.(print_trace, fd)
end
end
{ok, fd} = :file.open("/tmp/trace.out", [:write])
custom_tracer = :proc_lib.spawn(fn -> print_trace.(print_trace, fd) end)
:erlang.trace(self(), true, [:all, {:tracer, custom_tracer}])
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