diff options
| author | Miles Bader <miles@gnu.org> | 1997-03-02 21:08:16 +0000 |
|---|---|---|
| committer | Miles Bader <miles@gnu.org> | 1997-03-02 21:08:16 +0000 |
| commit | c93b79b41d410e5e5dbba24a18bb744a456b3852 (patch) | |
| tree | 83109d598486ede21f7a418015835122211770bd /term/users.c | |
| parent | d2b28d588e33c2352fb57fc2d77504a6027e43d8 (diff) | |
(open_hook):
Add OPEN_COUNT hack to try and detect lossage.
Diffstat (limited to 'term/users.c')
| -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)) { |