Robert Haas <robertmh...@gmail.com> writes: > On Fri, Aug 7, 2020 at 11:36 AM Tom Lane <t...@sss.pgh.pa.us> wrote: >> The sigdelset call, just like the adjacent pqsignal calls, is >> preparatory setup; it does not intend to allow anything to happen >> immediately.
> I don't think that your analysis here is correct. The sigdelset call > is manipulating BlockSig, and the subsequent PG_SETMASK call is > working with UnblockSig, so it doesn't make sense to view one as a > preparatory step for the other. That SETMASK call will certainly unblock SIGQUIT, so I don't see what your point is. Anyway, the bottom line is that that code's been like that for a decade or two without complaints, so I'm disinclined to mess with it on the strength of nothing much. regards, tom lane