#include "RtsUtils.h"
#include "RtsFlags.h"
#include "Prelude.h"
+#include "ThrIOManager.h"
#ifdef alpha_HOST_ARCH
# if defined(linux_HOST_OS)
* to POSIX.1 to control whether or not to include SA_NOCLDSTOP when
* installing a SIGCHLD handler.
*/
-StgInt nocldstop = 0;
+HsInt nocldstop = 0;
/* -----------------------------------------------------------------------------
* The table of signal handlers
#endif /* THREADED_RTS */
/* -----------------------------------------------------------------------------
- * SIGCONT handler
- *
- * It seems that shells tend to put stdin back into blocking mode
- * following a suspend/resume of the process. Here we arrange to put
- * it back into non-blocking mode. We don't do anything to
- * stdout/stderr because these handles don't get put into non-blocking
- * mode at all - see the comments on stdout/stderr in PrelHandle.hsc.
- * -------------------------------------------------------------------------- */
-
-static void
-cont_handler(int sig STG_UNUSED)
-{
- setNonBlockingFd(0);
-}
-
-/* -----------------------------------------------------------------------------
* Low-level signal handler
*
* Places the requested handler on a stack of pending handlers to be
sigaddset(&signals, sig);
sigprocmask(SIG_UNBLOCK, &signals, NULL);
- // *always* do the SIGCONT handler, even if the user overrides it.
- if (sig == SIGCONT) {
- cont_handler(sig);
- }
-
context_switch = 1;
}
sigemptyset(&action.sa_mask);
action.sa_flags = 0;
if (sigaction(SIGINT, &action, &oact) != 0) {
- errorBelch("warning: failed to install SIGINT handler");
+ sysErrorBelch("warning: failed to install SIGINT handler");
}
#if defined(HAVE_SIGINTERRUPT)
siginterrupt(SIGINT, 1); // isn't this the default? --SDM
#endif
- // install the SIGCONT handler
- action.sa_handler = cont_handler;
- sigemptyset(&action.sa_mask);
- action.sa_flags = 0;
- if (sigaction(SIGCONT, &action, &oact) != 0) {
- errorBelch("warning: failed to install SIGCONT handler");
- }
-
// install the SIGFPE handler
// In addition to handling SIGINT, also handle SIGFPE by ignoring it.
sigemptyset(&action.sa_mask);
action.sa_flags = 0;
if (sigaction(SIGFPE, &action, &oact) != 0) {
- errorBelch("warning: failed to install SIGFPE handler");
+ sysErrorBelch("warning: failed to install SIGFPE handler");
}
#endif
#endif
}
+void
+freeSignalHandlers(void) {
+ if (signal_handlers != NULL) {
+ stgFree(signal_handlers);
+ }
+}
+
#endif /* RTS_USER_SIGNALS */