From dd7447b87c6d6d1afaf25553b0f911853dcc6683 Mon Sep 17 00:00:00 2001 From: Neal H Walfield Date: Tue, 29 Oct 2019 23:56:23 +0100 Subject: libdiskfs: 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(diskfs_S_file_record_lock): Don't set rendezvous to MACH_PORT_NULL. 2018-12-07 Svante Signell * Update copyright years. * dir-lookup.c(diskfs_S_dir_lookup): Call fshelp_rlock_tweak() with new last argument rendezvous = MACH_PORT_NULL. * file-lock.c(diskfs_S_file_lock): Likewise. * file-record-lock.c(diskfs_S_file_record_lock): Likewise. (diskfs_S_file_record_lock): Add new argument mach_port_t rendezvous. 2017-01-05 Svante Signell * Update copyright years and headers. 2016-05-23 Svante Signell * file-lock-stat.c: Port from cthreads to libpthread. * file-lock.c: Likewise. * file-record-lock: Likewise. 2001-04-11 Neal H Walfield * Makefile (FSSRCS): Add file-record-lock.c. * diskfs.h (struct peropen): Change the type of lock_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 (diskfs_S_dir_lookup): Use fshelp_rlock_tweak as fshelp_acquire_lock is now depreciated. * file-lock-stat.c (diskfs_S_file_lock_stat): Total rewrite around the new record locking functions. * file-lock.c (diskfs_S_file_lock): Total rewrite around the new record locking functions. * file-record-lock.c: New file. Implement diskfs_S_file_record_lock. * node-make.c (diskfs_make_node): Initialize userbox with fshelp_rlock_init. * peropen-make.c (diskfs_make_peropen): Initialize lock_status using fshelp_rlock_po_init. * peropen-rele.c (diskfs_release_peropen): Release lock_status using fshelp_rlock_drop_peropen. --- libdiskfs/peropen-make.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'libdiskfs/peropen-make.c') diff --git a/libdiskfs/peropen-make.c b/libdiskfs/peropen-make.c index 788b9a7a..827aa2d8 100644 --- a/libdiskfs/peropen-make.c +++ b/libdiskfs/peropen-make.c @@ -1,5 +1,5 @@ /* - Copyright (C) 1994,97,99,2001,02 Free Software Foundation + Copyright (C) 1994,97,99,2001-2002,2014-2019 Free Software Foundation This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as @@ -12,11 +12,13 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + along with the GNU Hurd. If not, see . */ #include "priv.h" +#include +#include #include +#include /* Create and return a new peropen structure on node NP with open flags FLAGS. */ @@ -24,13 +26,17 @@ error_t diskfs_make_peropen (struct node *np, int flags, struct peropen *context, struct peropen **ppo) { + error_t err; struct peropen *po = *ppo = malloc (sizeof (struct peropen)); if (! po) return ENOMEM; + err = fshelp_rlock_po_init (&po->lock_status); + if (err) + return err; + po->filepointer = 0; - po->lock_status = LOCK_UN; refcount_init (&po->refcnt, 1); po->openstat = flags; po->np = np; -- cgit v1.2.3