Initial revision

1 files changed, 0 insertions, 80 deletions

diff --git a/signal.c b/signal.c
deleted file mode 100644
index 1c3f812..0000000
--- a/signal.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* signal.c: a Hugh-approved signal handler. */
-
-#include <signal.h>
-#include <setjmp.h>
-#include "rc.h"
-#include "sigmsgs.h"
-#include "jbwrap.h"
-
-Jbwrap slowbuf;
-volatile SIG_ATOMIC_T slow, interrupt_happened;
-void (*sighandlers[NUMOFSIGNALS])(int);
-
-static volatile SIG_ATOMIC_T sigcount, caught[NUMOFSIGNALS];
-
-extern void catcher(int s) {
-	if (caught[s] == 0) {
-		sigcount++;
-		caught[s] = 1;
-	}
-	signal(s, catcher);
-	interrupt_happened = TRUE;
-#ifndef HAVE_RESTARTABLE_SYSCALLS
-	if (slow)
-		longjmp(slowbuf.j, 1);
-#endif
-}
-
-extern void sigchk() {
-	void (*h)(int);
-	int s, i;
-	if (sigcount == 0)
-		return; /* ho hum; life as usual */
-	if (forked)
-		exit(1); /* exit unconditionally on a signal in a child process */
-	for (i = 0, s = -1; i < NUMOFSIGNALS; i++)
-		if (caught[i] != 0) {
-			s = i;
-			--sigcount;
-			caught[s] = 0;
-			break;
-		}
-	if (s == -1)
-		panic("all-zero sig vector with nonzero sigcount");
-	if ((h = sighandlers[s]) == SIG_DFL)
-		panic("caught signal set to SIG_DFL");
-	if (h == SIG_IGN)
-		panic("caught signal set to SIG_IGN");
-	(*h)(s);
-}
-
-extern void (*rc_signal(int s, void (*h)(int)))(int) {
-	void (*old)(int);
-	sigchk();
-	old = sighandlers[s];
-	if (h == SIG_DFL || h == SIG_IGN) {
-		signal(s, h);
-		sighandlers[s] = h;
-	} else {
-		sighandlers[s] = h;
-		signal(s, catcher);
-	}
-	return old;
-}
-
-extern void initsignal() {
-	void (*h)(int);
-	int i;
-	for (i = 1; i < NUMOFSIGNALS; i++) {
-		if ((h = signal(i, SIG_DFL)) != SIG_DFL)
-			signal(i, h);
-		sighandlers[i] = h;
-	}
-
-#ifdef SIGCLD
-	/* Ensure that SIGCLD is not SIG_IGN.  Solaris's rshd does this.  :-( */
-	h = signal(SIGCLD, SIG_DFL);
-	if (h != SIG_IGN)
-		signal(SIGCLD, h);
-#endif
-}