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fix a case of potentially use of undefined variable when handling error in distributed message processing #51019

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merged 2 commits into from
Aug 24, 2023
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fix a case of potentially use of undefined variable when handling error in distributed message processing #51019

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47ef16f
fix a case of potentially use of undefined variable when handling err…
Aug 23, 2023
f399dca
fixup
KristofferC Aug 23, 2023
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5 changes: 3 additions & 2 deletions stdlib/Distributed/src/process_messages.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,9 @@ function message_handler_loop(r_stream::IO, w_stream::IO, incoming::Bool)
handle_msg(msg, header, r_stream, w_stream, version)
end
catch e
werr = worker_from_id(wpid)
oldstate = werr.state

# Check again as it may have been set in a message handler but not propagated to the calling block above
if wpid < 1
wpid = worker_id_from_socket(r_stream)
Expand All @@ -219,8 +222,6 @@ function message_handler_loop(r_stream::IO, w_stream::IO, incoming::Bool)
println(stderr, e, CapturedException(e, catch_backtrace()))
println(stderr, "Process($(myid())) - Unknown remote, closing connection.")
elseif !(wpid in map_del_wrkr)
werr = worker_from_id(wpid)
oldstate = werr.state
set_worker_state(werr, W_TERMINATED)

# If unhandleable error occurred talking to pid 1, exit
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