1 files changed, 98 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/transactions/lock/range/range_tree/lib/util/dbt.h b/src/rocksdb/utilities/transactions/lock/range/range_tree/lib/util/dbt.h
new file mode 100644
index 000000000..d86c440f8
--- /dev/null
+++ b/src/rocksdb/utilities/transactions/lock/range/range_tree/lib/util/dbt.h
@@ -0,0 +1,98 @@
+/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
+#ident "$Id$"
+/*======
+This file is part of PerconaFT.
+
+
+Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
+
+    PerconaFT is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License, version 2,
+    as published by the Free Software Foundation.
+
+    PerconaFT 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 PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
+
+----------------------------------------
+
+    PerconaFT is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License, version 3,
+    as published by the Free Software Foundation.
+
+    PerconaFT 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 Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
+
+----------------------------------------
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+======= */
+
+#ident \
+    "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
+
+#pragma once
+
+#include "../db.h"
+
+// TODO: John
+// Document this API a little better so that DBT
+// memory management can be morm widely understood.
+
+DBT *toku_init_dbt(DBT *);
+
+// returns: an initialized but empty dbt (for which toku_dbt_is_empty() is true)
+DBT toku_empty_dbt(void);
+
+DBT *toku_init_dbt_flags(DBT *, uint32_t flags);
+
+void toku_destroy_dbt(DBT *);
+
+DBT *toku_fill_dbt(DBT *dbt, const void *k, size_t len);
+
+DBT *toku_memdup_dbt(DBT *dbt, const void *k, size_t len);
+
+DBT *toku_copyref_dbt(DBT *dst, const DBT src);
+
+DBT *toku_clone_dbt(DBT *dst, const DBT &src);
+
+void toku_sdbt_cleanup(struct simple_dbt *sdbt);
+
+// returns: special DBT pointer representing positive infinity
+const DBT *toku_dbt_positive_infinity(void);
+
+// returns: special DBT pointer representing negative infinity
+const DBT *toku_dbt_negative_infinity(void);
+
+// returns: true if the given dbt is either positive or negative infinity
+bool toku_dbt_is_infinite(const DBT *dbt);
+
+// returns: true if the given dbt has no data (ie: dbt->data == nullptr)
+bool toku_dbt_is_empty(const DBT *dbt);
+
+// effect: compares two potentially infinity-valued dbts
+// requires: at least one is infinite (assert otherwise)
+int toku_dbt_infinite_compare(const DBT *a, const DBT *b);
+
+// returns: true if the given dbts have the same data pointer and size
+bool toku_dbt_equals(const DBT *a, const DBT *b);