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0 pointsfanf21y ago0 comments

Exactly, yes :-) Signal handlers have so many hazards it's vital to keep them as simple as possible.

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5 comments · 3 top-level

rwmj1y ago· 1 in thread

A rule I try to follow: either set a global variable or write to a self pipe (using the write syscall), and handle the signal in the main loop.

> either set a global variable

IIRC, the rule is also that said global variable must have the type "volatile sig_atomic_t".

growse1y ago· 1 in thread

I'm not overly familiar with the language and tooling ecosystem, but how trivial is this to detect on a static analysis?

Quite easy.

lokar1y ago

You should read the sigsev handler at google, it’s great, doing all kinds of things. Of course it’s going to crash at some point anyway….

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