From 40ab805df48b2f65d5028ba59063e2a36f19f452 Mon Sep 17 00:00:00 2001 From: Svante Signell Date: Wed, 30 Oct 2019 02:33:27 +0100 Subject: libnetfs: Support for file record locking 2019-03-04 Svante Signell * file-lock.c: Make flock work regardless of the mode in which the file was opened. 2019-02-12 Svante Signell * file-lock.c: Comment out "Make flock work without R or W mode" 2019-02-01 Svante Signell * Update copyright years. * file-record-lock.c(netfs_S_file_record_lock): Don't set rendezvous to MACH_PORT_NULL. 2017-01-05 Svante Signell * Update copyright years and headers. * dir-lookup.c(netfs_S_dir_lookup): Call fshelp_rlock_tweak() with new last argument rendezvous = MACH_PORT_NULL. * file-lock.c(netfs_S_file_lock): Likewise. * file-record-lock.c(netfs_S_file_record_lock): Likewise. (netfs_S_file_record_lock): Add new argument mach_port_t rendezvous. 2016-05-23 Svante Signell * netfs.h (struct peropen): Change the type of rlock_status from an int to a struct rlock_peropen. (struct node): Change the type of userbox from a struct lock_box to a struct rlock_box. * dir-lookup.c (netfs_S_dir_lookup): Use fshelp_rlock_tweak. * file-lock-stat.c (netfs_S_file_lock_stat): Total rewrite around the new record locking functions. * file-lock.c (netfs_S_file_lock): Likewise. * file-record-lock.c (netfs_S_file_record_lock): Likewise. * make-node.c (netfs_make_node): Initialize userbox with fshelp_rlock_init. * make-peropen.c (netfs_make_peropen): Initialize lock_status using fshelp_rlock_po_init. (netfs_make_peropen): Add a comment that po->refcnt starts at zero. * relese-peropen.c (netfs_release_peropen): Release lock_status using fshelp_rlock_drop_peropen. 2001-04-11 Neal H Walfield * file-record-lock.c: New file. Implement netfs_S_file_record_lock. * Makefile (SRCS): Add file-record-lock.c --- libnetfs/make-peropen.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'libnetfs/make-peropen.c') diff --git a/libnetfs/make-peropen.c b/libnetfs/make-peropen.c index 413e9140..4bd74740 100644 --- a/libnetfs/make-peropen.c +++ b/libnetfs/make-peropen.c @@ -1,5 +1,5 @@ -/* - Copyright (C) 1995, 1997 Free Software Foundation, Inc. +/* + Copyright (C) 1995, 1997, 2015-2019 Free Software Foundation, Inc. Written by Michael I. Bushnell, p/BSG. This file is part of the GNU Hurd. @@ -15,22 +15,26 @@ General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + along with the GNU Hurd. If not, see . */ #include "netfs.h" +#include +#include #include struct peropen * netfs_make_peropen (struct node *np, int flags, struct peropen *context) { + error_t err; struct peropen *po = malloc (sizeof (struct peropen)); if (!po) return NULL; po->filepointer = 0; - po->lock_status = LOCK_UN; + err = fshelp_rlock_po_init (&po->lock_status); + if (err) + return NULL; refcount_init (&po->refcnt, 1); po->openstat = flags; po->np = np; -- cgit v1.2.3