Grains v0.3.7 Grains.Support.Trace

This is a wrapper around :erlang.trace/3 adapted to trace the sending and receiving push/pull messages in grains. The Trace server has to be started before it can be used, either directly with Trace.start_link/1 or with start_supervised!(Trace) in tests.

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Functions

Returns a specification to start this module under a supervisor.

Callback implementation for GenServer.init/1.

Trace pull.

Trace push.

Stop tracing pull.

Stop tracing push.

Link to this section Functions

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child_spec(init_arg)

Returns a specification to start this module under a supervisor.

See Supervisor.

Callback implementation for GenServer.init/1.

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pull(sup, args)

Trace pull.

Arguments

  • :target: The shortname of the grain to-be-traced.
  • :what: One of :receive or :send, indicating if sending or receiving should be traced.
  • :tracer: (optional) tracer process, defaults to MODULE
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push(sup, args)

Trace push.

Arguments

  • :target: The shortname of the grain to-be-traced.
  • :what: One of :receive or :send, indicating if sending or receiving should be traced.
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start_link(args)

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stop_pull(sup, args)

Stop tracing pull.

Arguments

  • :target: The shortname of the grain to-be-traced.
  • :what: One of :receive or :send, indicating if sending or receiving should be traced.
  • :tracer: (optional) tracer process, defaults to MODULE
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stop_push(sup, args)

Stop tracing push.

Arguments

  • :target: The shortname of the grain to-be-traced.
  • :what: One of :receive or :send, indicating if sending or receiving should be traced.