diff options
Diffstat (limited to 'src/backend/libpq/pqsignal.c')
| -rw-r--r-- | src/backend/libpq/pqsignal.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/src/backend/libpq/pqsignal.c b/src/backend/libpq/pqsignal.c index 04ebd7dd57c..4648fe455f7 100644 --- a/src/backend/libpq/pqsignal.c +++ b/src/backend/libpq/pqsignal.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/libpq/pqsignal.c,v 1.15 2000/06/11 11:39:50 petere Exp $ + * $Header: /cvsroot/pgsql/src/backend/libpq/pqsignal.c,v 1.16 2000/06/28 03:31:41 tgl Exp $ * * NOTES * This shouldn't be in libpq, but the monitor and some other @@ -44,6 +44,44 @@ #include "libpq/pqsignal.h" + +/* + * Initialize BlockSig and UnBlockSig. + * + * BlockSig is the set of signals to block when we are trying to block + * signals. This includes all signals we normally expect to get, but NOT + * signals that should never be turned off. + * + * UnBlockSig is the set of signals to block when we don't want to block + * signals (is this ever nonzero??) + */ +void +pqinitmask(void) +{ +#ifdef HAVE_SIGPROCMASK + sigemptyset(&UnBlockSig); + sigfillset(&BlockSig); + sigdelset(&BlockSig, SIGABRT); + sigdelset(&BlockSig, SIGILL); + sigdelset(&BlockSig, SIGSEGV); + sigdelset(&BlockSig, SIGBUS); + sigdelset(&BlockSig, SIGTRAP); + sigdelset(&BlockSig, SIGCONT); + sigdelset(&BlockSig, SIGSYS); +#else + UnBlockSig = 0; + BlockSig = sigmask(SIGHUP) | sigmask(SIGQUIT) | + sigmask(SIGTERM) | sigmask(SIGALRM) | + sigmask(SIGINT) | sigmask(SIGUSR1) | + sigmask(SIGUSR2) | sigmask(SIGCHLD) | + sigmask(SIGWINCH) | sigmask(SIGFPE); +#endif +} + + +/* + * Set up a signal handler + */ pqsigfunc pqsignal(int signo, pqsigfunc func) { |