OpenSolaris Launch

1 files changed, 101 insertions, 0 deletions

diff --git a/usr/src/lib/efcode/engine/alarm.c b/usr/src/lib/efcode/engine/alarm.c
new file mode 100644
index 0000000000..c9d4550a9d
--- /dev/null
+++ b/usr/src/lib/efcode/engine/alarm.c
@@ -0,0 +1,101 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 1999 by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#include <fcode/private.h>
+
+/*
+ * 'user-abort' Fcode
+ */
+void
+user_abort(fcode_env_t *env)
+{
+	forth_abort(env, "user-abort called");
+}
+
+static fstack_t alarm_xt;
+static fstack_t alarm_ms;
+static fcode_env_t *alarm_env;
+
+static void
+catch_alarm(int signo)
+{
+	fcode_env_t *env = alarm_env;
+
+	if (env && alarm_xt && alarm_ms) {
+		PUSH(DS, alarm_xt);
+		execute(env);
+		signal(SIGALRM, catch_alarm);
+		alarm((alarm_ms + 999)/1000);
+	}
+}
+
+/*
+ * 'alarm' Fcode
+ */
+void
+do_alarm(fcode_env_t *env)
+{
+	fstack_t ms, xt;
+
+	CHECK_DEPTH(env, 2, "alarm");
+	ms = POP(DS);
+	xt = POP(DS);
+	if (ms == 0) {
+		alarm(0);
+		signal(SIGALRM, SIG_DFL);
+		alarm_xt = 0;
+		alarm_ms = 0;
+		alarm_env = 0;
+	} else {
+		signal(SIGALRM, catch_alarm);
+		alarm_xt = xt;
+		alarm_ms = ms;
+		alarm_env = env;
+		alarm((ms + 999)/1000);
+	}
+}
+
+#pragma init(_init)
+
+static void
+_init(void)
+{
+	fcode_env_t *env = initial_env;
+
+	ASSERT(env);
+	NOTICE;
+
+	P1275(0x213, 0,		"alarm",		do_alarm);
+
+	P1275(0x219, 0,		"user-abort",		user_abort);
+}