move Rust sources to top level, C sources into c_src

[bcachefs-tools-debian] / c_src / libbcachefs / btree_journal_iter.h

diff --git a/c_src/libbcachefs/btree_journal_iter.h b/c_src/libbcachefs/btree_journal_iter.h
new file mode 100644 (file)
index 0000000..8ca4c10
--- /dev/null
+++ b/c_src/libbcachefs/btree_journal_iter.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_BTREE_JOURNAL_ITER_H
+#define _BCACHEFS_BTREE_JOURNAL_ITER_H
+
+struct journal_iter {
+       struct list_head        list;
+       enum btree_id           btree_id;
+       unsigned                level;
+       size_t                  idx;
+       struct journal_keys     *keys;
+};
+
+/*
+ * Iterate over keys in the btree, with keys from the journal overlaid on top:
+ */
+
+struct btree_and_journal_iter {
+       struct btree            *b;
+       struct btree_node_iter  node_iter;
+       struct bkey             unpacked;
+
+       struct journal_iter     journal;
+       struct bpos             pos;
+       bool                    at_end;
+};
+
+struct bkey_i *bch2_journal_keys_peek_upto(struct bch_fs *, enum btree_id,
+                               unsigned, struct bpos, struct bpos, size_t *);
+struct bkey_i *bch2_journal_keys_peek_slot(struct bch_fs *, enum btree_id,
+                                          unsigned, struct bpos);
+
+int bch2_journal_key_insert_take(struct bch_fs *, enum btree_id,
+                                unsigned, struct bkey_i *);
+int bch2_journal_key_insert(struct bch_fs *, enum btree_id,
+                           unsigned, struct bkey_i *);
+int bch2_journal_key_delete(struct bch_fs *, enum btree_id,
+                           unsigned, struct bpos);
+void bch2_journal_key_overwritten(struct bch_fs *, enum btree_id,
+                                 unsigned, struct bpos);
+
+void bch2_btree_and_journal_iter_advance(struct btree_and_journal_iter *);
+struct bkey_s_c bch2_btree_and_journal_iter_peek(struct btree_and_journal_iter *);
+
+void bch2_btree_and_journal_iter_exit(struct btree_and_journal_iter *);
+void __bch2_btree_and_journal_iter_init_node_iter(struct btree_and_journal_iter *,
+                               struct bch_fs *, struct btree *,
+                               struct btree_node_iter, struct bpos);
+void bch2_btree_and_journal_iter_init_node_iter(struct btree_and_journal_iter *,
+                                               struct bch_fs *,
+                                               struct btree *);
+
+void bch2_journal_keys_put(struct bch_fs *);
+
+static inline void bch2_journal_keys_put_initial(struct bch_fs *c)
+{
+       if (c->journal_keys.initial_ref_held)
+               bch2_journal_keys_put(c);
+       c->journal_keys.initial_ref_held = false;
+}
+
+void bch2_journal_entries_free(struct bch_fs *);
+
+int bch2_journal_keys_sort(struct bch_fs *);
+
+#endif /* _BCACHEFS_BTREE_JOURNAL_ITER_H */