diff options
Diffstat (limited to 'libnetfs/file-record-lock.c')
-rw-r--r-- | libnetfs/file-record-lock.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/libnetfs/file-record-lock.c b/libnetfs/file-record-lock.c new file mode 100644 index 00000000..049fc139 --- /dev/null +++ b/libnetfs/file-record-lock.c @@ -0,0 +1,44 @@ +/* Copyright (C) 2001, 2014-2019 Free Software Foundation, Inc. + + Written by Neal H Walfield <neal@cs.uml.edu> + + 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. If not, see <http://www.gnu.org/licenses/>. */ + +#include "netfs.h" + +#include <hurd/fshelp.h> + +error_t +netfs_S_file_record_lock (struct protid *cred, + int cmd, + struct flock64 *lock, + mach_port_t rendezvous) +{ + struct node *node; + error_t err; + + if (! cred) + return EOPNOTSUPP; + + node = cred->po->np; + pthread_mutex_lock (&node->lock); + err = fshelp_rlock_tweak (&node->userlock, &node->lock, + &cred->po->lock_status, cred->po->openstat, + node->nn_stat.st_size, cred->po->filepointer, + cmd, lock, rendezvous); + pthread_mutex_unlock (&node->lock); + return err; +} |