From 6f25618be5d8756284dc99c47953268e398175d0 Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Sat, 16 Sep 2000 16:32:19 +0000 Subject: Add PyOS_getsig() and PyOS_setsig() -- wrappers around signal() or sigaction() (if HAVE_SIGACTION is defined). --- Python/pythonrun.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/Python/pythonrun.c b/Python/pythonrun.c index 924ebf3..e29e719 100644 --- a/Python/pythonrun.c +++ b/Python/pythonrun.c @@ -1214,3 +1214,37 @@ PyOS_CheckStack(void) /* Alternate implementations can be added here... */ #endif /* USE_STACKCHECK */ + + +/* Wrappers around sigaction() or signal(). */ + +PyOS_sighandler_t +PyOS_getsig(int sig) +{ +#ifdef HAVE_SIGACTION + struct sigaction context; + sigaction(sig, NULL, &context); + return context.sa_handler; +#else + PyOS_sighandler_t handler; + handler = signal(sig, SIG_IGN); + signal(sig, handler); + return handler; +#endif +} + +PyOS_sighandler_t +PyOS_setsig(int sig, PyOS_sighandler_t handler) +{ +#ifdef HAVE_SIGACTION + struct sigaction context; + PyOS_sighandler_t oldhandler; + sigaction(sig, NULL, &context); + oldhandler = context.sa_handler; + context.sa_handler = handler; + sigaction(sig, &context, NULL); + return oldhandler; +#else + return signal(sig, handler); +#endif +} -- cgit v0.12