[all-commits] [llvm/llvm-project] a6c950: [Orc] Handle hangup messages in SimpleRemoteEPC

[Stefan Gränitz via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a6c9506365fb4027f5403e2e39301ad8e0668267
      https://github.com/llvm/llvm-project/commit/a6c9506365fb4027f5403e2e39301ad8e0668267
  Author: Stefan Gränitz <stefan.graenitz at gmail.com>
  Date:   2021-10-11 (Mon, 11 Oct 2021)

  Changed paths:
    M llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h
    M llvm/include/llvm/ExecutionEngine/Orc/SimpleRemoteEPC.h
    M llvm/lib/ExecutionEngine/Orc/SimpleRemoteEPC.cpp

  Log Message:
  -----------
  [Orc] Handle hangup messages in SimpleRemoteEPC

On the controller-side, handle `Hangup` messages from the executor. The executor passed `Error::success()` or a failure message as payload.

Hangups cause an immediate disconnect of the transport layer. The disconnect function may be called later again and so implementations should be prepared. `FDSimpleRemoteEPCTransport::disconnect()` already has a flag to check that:
https://github.com/llvm/llvm-project/blob/cd1bd95d8707371da0e4f75cd01669c427466931/llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp#L112

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D111527