diff options
| author | Thomas Munro <tmunro@postgresql.org> | 2021-04-19 10:22:31 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2021-04-19 10:35:51 +1200 |
| commit | 8e861eaae86eeaf5589963c9b1c7ce6d4c2acbb5 (patch) | |
| tree | d99db2c9f52a19cef128894686763ebf49a0347d | |
| parent | 4ed7f0599a8984d9ed967780a157d9b23d03fbb5 (diff) | |
| download | postgresql-8e861eaae86eeaf5589963c9b1c7ce6d4c2acbb5.tar.gz postgresql-8e861eaae86eeaf5589963c9b1c7ce6d4c2acbb5.zip | |
Explain postmaster's treatment of SIGURG.
Add a few words of comment to explain why SIGURG doesn't follow the
dummy_handler pattern used for SIGUSR2, since that might otherwise
appear to be a bug.
Discussion: https://postgr.es/m/4006115.1618577212%40sss.pgh.pa.us
| -rw-r--r-- | src/backend/postmaster/postmaster.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c index 4a3ca78c1b7..b05db5a4735 100644 --- a/src/backend/postmaster/postmaster.c +++ b/src/backend/postmaster/postmaster.c @@ -660,6 +660,11 @@ PostmasterMain(int argc, char *argv[]) pqsignal_pm(SIGCHLD, reaper); /* handle child termination */ #ifdef SIGURG + /* + * Ignore SIGURG for now. Child processes may change this (see + * InitializeLatchSupport), but they will not receive any such signals + * until they wait on a latch. + */ pqsignal_pm(SIGURG, SIG_IGN); /* ignored */ #endif |