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net.server_epoll: Log failure to hook signals

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To make any such failures noticeable
This commit is contained in:
Kim Alvefur 2024-02-28 22:24:09 +01:00
parent 3d2bad3d4b
commit f1e07782ed
1 changed files with 6 additions and 1 deletions
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7
net/server_epoll.lua
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@ -1151,7 +1151,12 @@ if have_signal and signal.signalfd then
end
function hook_signal(signum, cb)
local watch = watchfd(signal.signalfd(signum), dispatch);
local sigfd = signal.signalfd(signum);
if not sigfd then
log("error", "Could not hook signal %d", signum);
return nil, "failed";
end
local watch = watchfd(sigfd, dispatch);
watch.listeners = { onsignal = cb };
watch.close = nil; -- revert to default
return watch;