From 2916074ced5ab94336c427928cbddc17387e1041 Mon Sep 17 00:00:00 2001
From: "Michael I. Bushnell" <mib@gnu.org>
Date: Thu, 13 Jun 1996 20:55:36 +0000
Subject: (S_startup_dosync, arrange_shutdown_notification): New functions.
 (pfinet_demuxer): Call startup_notify_server. (main): Call
 arrange_shutdown_notification).

---
 pfinet/main.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 62 insertions(+), 1 deletion(-)

(limited to 'pfinet/main.c')

diff --git a/pfinet/main.c b/pfinet/main.c
index 1bd65f3f..7c3e4650 100644
--- a/pfinet/main.c
+++ b/pfinet/main.c
@@ -40,12 +40,71 @@ pfinet_demuxer (mach_msg_header_t *inp,
 {
   extern int io_server (mach_msg_header_t *, mach_msg_header_t *);
   extern int socket_server (mach_msg_header_t *, mach_msg_header_t *);
+  extern int startup_notify_server (mach_msg_header_t *, mach_msg_header_t *);
 
   return (io_server (inp, outp)
 	  || socket_server (inp, outp)
-	  || trivfs_demuxer (inp, outp));
+	  || trivfs_demuxer (inp, outp)
+	  || startup_notify_server (inp, outp));
 }
 
+/* The system is going down; destroy all the extant port rights.  That
+   will cause net channels and such to close promptly.  */
+error_t
+S_startup_dosync (mach_port_t handle)
+{
+  struct port_info *inpi = ports_lookup_port (pfinet_bucket, 
+					      shutdown_notify_class);
+  error_t
+    do1 (void *port)
+      {
+	struct port_info *pi = port;
+	
+	if (pi->class == socketport_class)
+	  ports_destroy_right (pi);
+      }
+
+  if (!inpi)
+    return EOPNOTSUPP;
+
+  ports_bucket_iterate (pfinet_bucket, do1);
+  return 0;
+}
+
+void
+arrange_shutdown_notification ()
+{
+  error_t err;
+  mach_port_t initport, notify;
+  process_t procserver;
+  struct port_info *pi;
+  
+  /* Arrange to get notified when the system goes down,
+     but if we fail for some reason, just silently give up.  No big deal. */
+
+  err = ports_crease_port (shutdown_notify_class, pfinet_bucket, 
+			   sizeof (struct port_info), &pi);
+  if (err)
+    return;
+  
+  procserver = getproc ();
+  if (!procserver)
+    return;
+  
+  err = proc_getmsgport (procserver, 1, &initport);
+  mach_port_deallocate (mach_task_self (), procserver);
+  if (err)
+    return;
+  
+  notify = ports_get_right (pi);
+  ports_port_deref (pi);
+  startup_request_notification (initport, notify, 
+				MACH_MSG_TYPE_MAKE_SEND, 
+				program_invocation_short_name);
+  mach_port_deallocate (mach_task_self (), initport);
+}
+
+
 int
 main (int argc,
       char **argv)
@@ -95,6 +154,8 @@ main (int argc,
   setup_ethernet_device (argv[2]);
   inet_proto_init (0);
 
+  arrange_shutdown_notification ();
+
   /* XXX Simulate what should be user-level initialization */
 
   /* Simulate SIOCSIFADDR call. */
-- 
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