return inum;
}
-BlueSkyInode *bluesky_new_inode(uint64_t inum, BlueSkyFS *fs,
- BlueSkyFileType type)
+/* Perform type-specification initialization of an inode. Normally performed
+ * in bluesky_new_inode, but can be separated if an inode is created first,
+ * then deserialized. */
+void bluesky_init_inode(BlueSkyInode *i, BlueSkyFileType type)
{
- BlueSkyInode *i = g_new0(BlueSkyInode, 1);
-
- i->lock = g_mutex_new();
- i->refcount = 1;
i->type = type;
- i->fs = fs;
- i->inum = inum;
- i->change_count = 1;
switch (type) {
case BLUESKY_REGULAR:
i->dirhash = g_hash_table_new(g_str_hash, g_str_equal);
i->dirhash_folded = g_hash_table_new(g_str_hash, g_str_equal);
break;
- case BLUESKY_BLOCK:
- case BLUESKY_CHARACTER:
- case BLUESKY_SYMLINK:
- case BLUESKY_SOCKET:
- case BLUESKY_FIFO:
+ default:
break;
}
+}
+
+BlueSkyInode *bluesky_new_inode(uint64_t inum, BlueSkyFS *fs,
+ BlueSkyFileType type)
+{
+ BlueSkyInode *i = g_new0(BlueSkyInode, 1);
+
+ i->lock = g_mutex_new();
+ i->refcount = 1;
+ i->fs = fs;
+ i->inum = inum;
+ i->change_count = 1;
+ bluesky_init_inode(i, type);
return i;
}
{
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);
- if (inode->type == BLUESKY_REGULAR)
- bluesky_file_flush(inode, barrier);
-
char key[64];
sprintf(key, "inode-%016"PRIx64, inode->inum);
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);
+}
+
/* Fetch an inode from stable storage. */
void bluesky_inode_fetch(BlueSkyFS *fs, uint64_t inum)
{
if (data == NULL)
return;
- BlueSkyInode *inode = bluesky_deserialize_inode(fs, data->data);
- if (inode != NULL) {
- bluesky_insert_inode(fs, inode);
+ BlueSkyInode *inode = bluesky_new_inode(inum, fs, BLUESKY_PENDING);
+ bluesky_inode_ref(inode);
+ g_mutex_lock(inode->lock);
+ bluesky_insert_inode(fs, inode);
+
+ if (!bluesky_deserialize_inode(inode, data->data)) {
+ g_hash_table_remove(fs->inodes, &inode->inum);
+ bluesky_inode_unref(inode);
}
+
+ g_mutex_unlock(inode->lock);
+ bluesky_inode_unref(inode);
}
/* Synchronize filesystem superblock to stable storage. */