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Diffstat (limited to 'src/backend/port/unix_latch.c')
| -rw-r--r-- | src/backend/port/unix_latch.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/port/unix_latch.c b/src/backend/port/unix_latch.c index 65b2fc56e03..335e9f66afb 100644 --- a/src/backend/port/unix_latch.c +++ b/src/backend/port/unix_latch.c @@ -418,6 +418,9 @@ WaitLatchOrSocket(volatile Latch *latch, int wakeEvents, pgsocket sock, * NB: when calling this in a signal handler, be sure to save and restore * errno around it. (That's standard practice in most signal handlers, of * course, but we used to omit it in handlers that only set a flag.) + * + * NB: this function is called from critical sections and signal handlers so + * throwing an error is not a good idea. */ void SetLatch(volatile Latch *latch) |