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Editorial Team
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Asked: 2026-06-18T07:58:43+00:00

Hi the question is as following: Assume we have processes A and B which

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Hi the question is as following:
Assume we have processes A and B which are linked. Process’s A flag trap_exit is set to true. Let B process send a msg to A and then exit:

PidA ! 'msg',
exit(reason).

What I wanna know if we can be shure that the process A will receive ‘msg’ and only after It {‘EXIT’, Pid, reason} will come ? Can we predict the ordering of msgs? I can’t found any proofs in documentation, but I guess that it will work that way, but I need some proofs. Don’t want to have race condition here..

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1 Answer

  1. Editorial Team

    As to not leave this question hanging. This is the discussion in erlang-questions mailing list:

    http://thread.gmane.org/gmane.comp.lang.erlang.general/66788

    Long story short: all messages are signals (or all signals are messages), exits are seen as messages from the process, guaranteed to arrive in the same order they were sent.

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