Postgres95 1.01 Distribution - Virgin Sources

src/backend/libpq/pqsignal.c

@@ -0,0 +1,40 @@
+/*-------------------------------------------------------------------------
+ *
+ * pqsignal.c--
+ *    reliable BSD-style signal(2) routine stolen from RWW who stole it
+ *    from Stevens...
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/backend/libpq/pqsignal.c,v 1.1.1.1 1996/07/09 06:21:31 scrappy Exp $
+ *
+ * NOTES
+ *	This shouldn't be in libpq, but the monitor and some other
+ *	things need it...
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "libpq/pqsignal.h"
+
+pqsigfunc
+pqsignal(int signo, pqsigfunc func)
+{
+#if defined(USE_POSIX_SIGNALS)
+    struct sigaction act, oact;
+    
+    act.sa_handler = func;
+    sigemptyset(&act.sa_mask);
+    act.sa_flags = 0;
+    if (signo != SIGALRM) {
+	act.sa_flags |= SA_RESTART;
+    }
+    if (sigaction(signo, &act, &oact) < 0)
+	return(SIG_ERR);
+    return(oact.sa_handler);
+#else /* !USE_POSIX_SIGNALS */
+    Assert(0);
+    return 0;
+#endif /* !USE_POSIX_SIGNALS */
+}