1 files changed, 31 insertions, 0 deletions
diff --git a/src/pmdk/src/libpmemobj/critnib.h b/src/pmdk/src/libpmemobj/critnib.h
new file mode 100644
index 000000000..d33664366
--- /dev/null
+++ b/src/pmdk/src/libpmemobj/critnib.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* Copyright 2018-2020, Intel Corporation */
+
+/*
+ * critnib.h -- internal definitions for critnib tree
+ */
+
+#ifndef LIBPMEMOBJ_CRITNIB_H
+#define LIBPMEMOBJ_CRITNIB_H 1
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct critnib;
+
+struct critnib *critnib_new(void);
+void critnib_delete(struct critnib *c);
+
+int critnib_insert(struct critnib *c, uint64_t key, void *value);
+void *critnib_remove(struct critnib *c, uint64_t key);
+void *critnib_get(struct critnib *c, uint64_t key);
+void *critnib_find_le(struct critnib *c, uint64_t key);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif