diff options
| -rw-r--r-- | term/users.c | 19 |
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)) { |