+/* Start writeback of an inode and all associated data. */
+void bluesky_inode_start_sync(BlueSkyInode *inode, BlueSkyStoreAsync *barrier)
+{
+ BlueSkyFS *fs = inode->fs;
+
+ if (inode->type == BLUESKY_REGULAR)
+ bluesky_file_flush(inode, barrier);
+
+ GString *buf = g_string_new("");
+ bluesky_serialize_inode(buf, inode);
+ BlueSkyRCStr *data = bluesky_string_new_from_gstring(buf);
+
+ char key[64];
+ sprintf(key, "inode-%016"PRIx64, inode->inum);
+
+ BlueSkyStoreAsync *async = bluesky_store_async_new(fs->store);
+ async->op = STORE_OP_PUT;
+ async->key = g_strdup(key);
+ async->data = data;
+ bluesky_store_async_submit(async);
+ if (barrier != NULL)
+ bluesky_store_add_barrier(barrier, async);
+ bluesky_store_async_unref(async);
+}
+
+/* Write back an inode and all associated data and wait for completion. Inode
+ * should already be locked. */
+void bluesky_inode_do_sync(BlueSkyInode *inode)
+{
+ BlueSkyStoreAsync *barrier = bluesky_store_async_new(inode->fs->store);
+ barrier->op = STORE_OP_BARRIER;
+
+ g_log("bluesky/inode", G_LOG_LEVEL_DEBUG,
+ "Synchronous writeback for inode %"PRIu64"...", inode->inum);
+ bluesky_inode_start_sync(inode, barrier);
+ bluesky_store_async_submit(barrier);
+ bluesky_store_async_wait(barrier);
+ bluesky_store_async_unref(barrier);
+ g_log("bluesky/inode", G_LOG_LEVEL_DEBUG,
+ "Writeback for inode %"PRIu64" complete", inode->inum);
+}
+
+static void complete_inode_fetch(BlueSkyStoreAsync *async, BlueSkyInode *inode)
+{
+ g_print("Completing fetch of inode %"PRIu64"...\n", inode->inum);
+
+ if (async->result != 0
+ || !bluesky_deserialize_inode(inode, async->data->data))
+ {
+ g_print(" failed to load inode, cleaning up\n");
+ g_mutex_lock(inode->fs->lock);
+ g_hash_table_remove(inode->fs->inodes, &inode->inum);
+ g_mutex_unlock(inode->fs->lock);
+ bluesky_inode_unref(inode);
+ }
+
+ g_mutex_unlock(inode->lock);
+ bluesky_inode_unref(inode);
+}
+
+/* Fetch an inode from stable storage. The fetch can be performed
+ * asynchronously: the in-memory inode is allocated, but not filled with data
+ * immediately. It is kept locked until it has been filled in, so any users
+ * should try to acquire the lock on the inode before accessing any data. The
+ * fs lock must be held. */