diff options
Diffstat (limited to 'src/port/pqsignal.c')
| -rw-r--r-- | src/port/pqsignal.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/port/pqsignal.c b/src/port/pqsignal.c index 92382b3c348..6ca2d4e20a8 100644 --- a/src/port/pqsignal.c +++ b/src/port/pqsignal.c @@ -80,10 +80,14 @@ static volatile pqsigfunc pqsignal_handlers[PG_NSIG]; * processes do not modify shared memory, which is often detrimental. If the * check succeeds, the function originally provided to pqsignal() is called. * Otherwise, the default signal handler is installed and then called. + * + * This wrapper also handles restoring the value of errno. */ static void wrapper_handler(SIGNAL_ARGS) { + int save_errno = errno; + #ifndef FRONTEND /* @@ -102,6 +106,8 @@ wrapper_handler(SIGNAL_ARGS) #endif (*pqsignal_handlers[postgres_signal_arg]) (postgres_signal_arg); + + errno = save_errno; } /* |