safekeeper: correctly handle signals

Signed-off-by: Alex Chi Z <chi@neon.tech>
neondatabase · Mar 18, 2024 · b62ad06 · b62ad06
1 parent 2bc2fd9
commit b62ad06
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pgxn/neon/walproposer_pg.c b/pgxn/neon/walproposer_pg.c
@@ -509,9 +509,10 @@ walprop_pg_init_standalone_sync_safekeepers(void)
 static void
 walprop_sigusr2(SIGNAL_ARGS)
 {
+	int			save_errno = errno;
 	got_SIGUSR2 = true;
-
 	SetLatch(MyLatch);
+	errno = save_errno;
 }
 
 static void