* Copyright (C) 2009 The Regents of the University of California
* Written by Michael Vrable <mvrable@cs.ucsd.edu>
*
- * TODO: Licensing
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
*/
#include <stdio.h>
fs->log_state = g_new0(BlueSkyCloudLogState, 1);
fs->log_state->data = g_string_new("");
+ fs->log_state->latest_cleaner_seq_seen = -1;
+ fs->log_state->uploads_pending_lock = g_mutex_new();
+ fs->log_state->uploads_pending_cond = g_cond_new();
bluesky_cloudlog_threads_init(fs);
fs->inode_fetch_thread_pool = g_thread_pool_new(inode_fetch_task, NULL,
return fs;
}
-BlueSkyFS *bluesky_init_fs(gchar *name, BlueSkyStore *store)
+BlueSkyFS *bluesky_init_fs(gchar *name, BlueSkyStore *store,
+ const gchar *master_key)
{
BlueSkyFS *fs = bluesky_new_fs(name);
+ fs->master_key = g_strdup(master_key);
+ fs->keys = g_new(BlueSkyCryptKeys, 1);
+ bluesky_crypt_derive_keys(fs->keys, master_key);
fs->store = store;
fs->log = bluesky_log_new("journal");
fs->log->fs = fs;
bluesky_inode_do_sync(root);
}
+ bluesky_cleaner_thread_launch(fs);
+
return fs;
}
return i;
}
+/* Issue a prefetch hint for an inode. This signals that the inode may be
+ * needed soon. Does not return any useful data. */
+void bluesky_inode_prefetch(BlueSkyFS *fs, uint64_t inum)
+{
+ BlueSkyInode *inode = NULL;
+
+ g_mutex_lock(fs->lock);
+ inode = (BlueSkyInode *)g_hash_table_lookup(fs->inodes, &inum);
+
+ if (inode != NULL) {
+ /* Inode is already available, no need for any prefetching... */
+ g_mutex_unlock(fs->lock);
+ return;
+ }
+
+ InodeMapEntry *entry = bluesky_inode_map_lookup(fs->inode_map, inum, 0);
+ if (entry != NULL) {
+ bluesky_cloudlog_prefetch(entry->item);
+ }
+
+ g_mutex_unlock(fs->lock);
+ return;
+}
+
/* Retrieve an inode from the filesystem. Eventually this will be a cache and
* so we might need to go fetch the inode from elsewhere; for now all
* filesystem state is stored here. inode is returned with a reference held
{
BlueSkyInode *inode = (BlueSkyInode *)a;
+ bluesky_profile_set((BlueSkyProfile *)inode->private_data);
+
BlueSkyCloudLog *item = inode->committed_item;
inode->committed_item = NULL;
g_print("Completing fetch of inode %"PRIu64"...\n", inode->inum);
bluesky_cloudlog_ref(entry->item);
bluesky_insert_inode(fs, inode);
+ inode->private_data = bluesky_profile_get();
g_thread_pool_push(fs->inode_fetch_thread_pool, inode, NULL);
}