(open_hook):

  Add OPEN_COUNT hack to try and detect lossage.

1 files changed, 15 insertions, 4 deletions

diff --git a/term/users.c b/term/users.c
index 99191439..42f6ae35 100644
--- a/term/users.c
+++ b/term/users.c
@@ -1,5 +1,5 @@
 /* 
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    Written by Michael I. Bushnell, p/BSG.
 
    This file is part of the GNU Hurd.
@@ -108,6 +108,7 @@ open_hook (struct trivfs_control *cntl,
 	   struct iouser *user,
 	   int flags)
 {
+  static int open_count = 0;	/* XXX debugging */
   int cancel = 0;
   error_t err;
   
@@ -137,12 +138,22 @@ open_hook (struct trivfs_control *cntl,
 
       termflags |= NO_OWNER;
     }
-  else if (termflags & EXCL_USE)
+  else
     {
-      mutex_unlock (&global_lock);
-      return EBUSY;
+      assert (open_count > 0);	/* XXX debugging */
+
+      if (termflags & EXCL_USE)
+	{
+	  mutex_unlock (&global_lock);
+	  return EBUSY;
+	}
     }
 
+  open_count++;			/* XXX debugging */
+
+  /* XXX debugging */
+  assert (! (termstate.c_oflag & OTILDE));
+
   /* Assert DTR if necessary. */
   if ((termflags & NO_CARRIER) && !(termstate.c_cflag & CLOCAL))
     {