diff options
Diffstat (limited to 'libdiskfs/file-lock.c')
| -rw-r--r-- | libdiskfs/file-lock.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libdiskfs/file-lock.c b/libdiskfs/file-lock.c new file mode 100644 index 00000000..3ffd86e2 --- /dev/null +++ b/libdiskfs/file-lock.c @@ -0,0 +1,38 @@ +/* + Copyright (C) 1993, 1994 Free Software Foundation + +This file is part of the GNU Hurd. + +The GNU Hurd is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +The GNU Hurd is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with the GNU Hurd; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* Written by Michael I. Bushnell. */ + +#include "priv.h" +#include "fs_S.h" + +error_t +diskfs_S_file_lock (struct protid *cred, int flags) +{ + error_t err; + if (!cred) + return EOPNOTSUPP; + mutex_lock (&cred->po->np->lock); + err = fshelp_acquire_lock (&cred->po->np->userlock, cred->po->lock_status, + &cred->po->np->lock, flags); + mutex_unlcok (&cred->po->np->lock); + return err; +} + + |