Merge branch 'baserock/tiagogomes/btrfs2' into baserock/morphbaserock/morph

1 files changed, 82 insertions, 0 deletions

diff --git a/send-utils.h b/send-utils.h
new file mode 100644
index 0000000..06af75f
--- /dev/null
+++ b/send-utils.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 Alexander Block.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+#ifndef SEND_UTILS_H_
+#define SEND_UTILS_H_
+
+#if BTRFS_FLAT_INCLUDES
+#include "ctree.h"
+#include "rbtree.h"
+#else
+#include <btrfs/ctree.h>
+#include <btrfs/rbtree.h>
+#endif /* BTRFS_FLAT_INCLUDES */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum subvol_search_type {
+	subvol_search_by_root_id,
+	subvol_search_by_uuid,
+	subvol_search_by_received_uuid,
+	subvol_search_by_path,
+};
+
+struct subvol_info {
+	struct rb_node rb_root_id_node;
+	struct rb_node rb_local_node;
+	struct rb_node rb_received_node;
+	struct rb_node rb_path_node;
+	u64 root_id;
+	u8 uuid[BTRFS_UUID_SIZE];
+	u8 parent_uuid[BTRFS_UUID_SIZE];
+	u8 received_uuid[BTRFS_UUID_SIZE];
+	u64 ctransid;
+	u64 otransid;
+	u64 stransid;
+	u64 rtransid;
+
+	char *path;
+};
+
+struct subvol_uuid_search {
+	struct rb_root root_id_subvols;
+	struct rb_root local_subvols;
+	struct rb_root received_subvols;
+	struct rb_root path_subvols;
+};
+
+int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s);
+void subvol_uuid_search_finit(struct subvol_uuid_search *s);
+struct subvol_info *subvol_uuid_search(struct subvol_uuid_search *s,
+				       u64 root_id, const u8 *uuid, u64 transid,
+				       const char *path,
+				       enum subvol_search_type type);
+void subvol_uuid_search_add(struct subvol_uuid_search *s,
+			    struct subvol_info *si);
+
+int btrfs_subvolid_resolve(int fd, char *path, size_t path_len, u64 subvol_id);
+
+char *path_cat(const char *p1, const char *p2);
+char *path_cat3(const char *p1, const char *p2, const char *p3);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SEND_UTILS_H_ */