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prevent infinite loop in case of broken zpty file descriptor #31

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Dec 14, 2018
Merged

prevent infinite loop in case of broken zpty file descriptor #31

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16 changes: 16 additions & 0 deletions async.zsh
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Original file line number Diff line number Diff line change
Expand Up @@ -306,6 +306,22 @@ _async_zle_watcher() {
local worker=$ASYNC_PTYS[$1]
local callback=$ASYNC_CALLBACKS[$worker]

if [[ -n $2 ]]; then
# from man zshzle(1):
# `hup' for a disconnect, `nval' for a closed or otherwise
# invalid descriptor, or `err' for any other condition.
# Systems that support only the `select' system call always use
# `err'.

# this has the side effect to unregister the broken file descriptor
async_stop_worker $worker

if [[ -n $callback ]]; then
$callback '[async]' 2 "" 0 "$worker:zle -F $1 returned error $2" 0
fi
return
fi;

if [[ -n $callback ]]; then
async_process_results $worker $callback watcher
fi
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