summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorSergiu Ivanov <unlimitedscolobb@gmail.com>2009-07-08 18:46:58 (GMT)
committerSergiu Ivanov <unlimitedscolobb@gmail.com>2009-12-10 20:35:58 (GMT)
commit64dfa4e12d93c13b676d1cd7d86f4f4004ebfafa (patch)
treeaa966a728d9315b2a34448e245ade67c7db2a34a
parent442ffa8e11f9a600fb671bd11a8d410d9112187c (diff)
Implement the sync libnetfs stubs.
* netfs.c (netfs_attempt_sync): Sync every directory associated with the supplied node. (netfs_attempt_syncfs): Send file_syncfs to every directory maintained by unionfs.
-rw-r--r--netfs.c81
1 files changed, 78 insertions, 3 deletions
diff --git a/netfs.c b/netfs.c
index 89d1bf6..9d24f06 100644
--- a/netfs.c
+++ b/netfs.c
@@ -1,5 +1,6 @@
/* Hurd unionfs
- Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
+
Written by Moritz Schulte <moritz@duesseldorf.ccc.de>.
This program is free software; you can redistribute it and/or
@@ -282,7 +283,45 @@ error_t
netfs_attempt_sync (struct iouser *cred, struct node *np,
int wait)
{
- return EOPNOTSUPP;
+ /* The error we are going to report back (last failure wins). */
+ error_t final_err = 0;
+
+ /* The information about the currently analyzed filesystem. */
+ ulfs_t * ulfs;
+
+ /* The index of the currently analyzed filesystem. */
+ int i;
+
+ mutex_lock (&ulfs_lock);
+
+ /* Sync every directory associated with `np`.
+
+ TODO: Rewrite this after having modified ulfs.c and node.c to
+ store the paths and ports to the underlying directories in one
+ place, because now iterating over both lists looks ugly. */
+ i = 0;
+ node_ulfs_iterate_unlocked (np)
+ {
+ error_t err;
+
+ /* Get the information about the current filesystem. */
+ err = ulfs_get_num (i, &ulfs);
+ assert (!err);
+
+ /* Since `np` may not necessarily be present in every underlying
+ directory, having a null port is perfectly valid. */
+ if (node_ulfs->port != MACH_PORT_NULL)
+ {
+ err = file_sync (node_ulfs->port, wait, 0);
+ if (err)
+ final_err = err;
+ }
+
+ ++i;
+ }
+
+ mutex_unlock (&ulfs_lock);
+ return final_err;
}
/* This should sync the entire remote filesystem. If WAIT is set,
@@ -290,7 +329,43 @@ netfs_attempt_sync (struct iouser *cred, struct node *np,
error_t
netfs_attempt_syncfs (struct iouser *cred, int wait)
{
- return 0;
+ /* The error we are going to report back (last failure wins). */
+ error_t final_err = 0;
+
+ /* The information about the currently analyzed filesystem. */
+ ulfs_t * ulfs;
+
+ /* The index of the currently analyzed filesystem. */
+ int i;
+
+ mutex_lock (&ulfs_lock);
+
+ /* Sync every unioned directory maintained by unionfs.
+
+ TODO: Rewrite this after having modified ulfs.c and node.c to
+ store the paths and ports to the underlying directories in one
+ place, because now iterating over both lists looks ugly. */
+ i = 0;
+ node_ulfs_iterate_unlocked (netfs_root_node)
+ {
+ error_t err;
+
+ /* Get the information about the current filesystem. */
+ err = ulfs_get_num (i, &ulfs);
+ assert (!err);
+
+ /* Note that, unlike the situation in netfs_attempt_sync, having a
+ null port on the unionfs root node is abnormal. */
+ assert (node_ulfs->port != MACH_PORT_NULL);
+ err = file_syncfs (node_ulfs->port, wait, 0);
+ if (err)
+ final_err = err;
+
+ ++i;
+ }
+
+ mutex_unlock (&ulfs_lock);
+ return final_err;
}
/* lookup */