On 24/04/17 01:43, Andres Freund wrote: > >> BTW while looking at the code, I don't understand why we call >> latch_sigusr1_handler after calling SetLatch(MyLatch), shouldn't just >> the SetLatch be enough (they both end up calling sendSelfPipeByte() >> eventually)? > > Historic raisins - there didn't use to be a SetLatch in > procsignal_sigusr1_handler. That changed when I whacked around catchup & > notify to be based on latches ([1] and following). > > [1] > https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=59f71a0d0b56b2df48db4bf1738aece5551f7a47 >
Okay, but why call both SetLatch and latch_sigusr1_handler? What does that buy us? -- Petr Jelinek http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
