+#ifndef BABELTRACE_CTF_IR_REF_H
+#define BABELTRACE_CTF_IR_REF_H
+
+/*
+ * BabelTrace - CTF IR: common reference counting
+ *
+ * Copyright (c) 2015 EfficiOS Inc. and Linux Foundation
+ * Copyright (c) 2015 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <assert.h>
+#include <babeltrace/ref-internal.h>
+#include <babeltrace/ctf-ir/common-internal.h>
+
+/*
+ * BT_CTF_PUT: calls bt_ctf_put() with a variable, then sets this
+ * variable to NULL.
+ *
+ * A common action with CTF IR objects is to create or get one, do
+ * something with it, and then put it. To avoid putting it a second time
+ * later (if an error occurs, for example), the variable is often reset
+ * to NULL after putting the object it points to. Since this is so
+ * common, you can use the BT_CTF_PUT() macro, which does just that.
+ *
+ * It is safe to call this function with a NULL object.
+ *
+ * @param obj CTF IR object.
+ */
+#define BT_CTF_PUT(_obj) \
+ do { \
+ bt_ctf_put(_obj); \
+ (_obj) = NULL; \
+ } while (0)
+
+/*
+ * bt_ctf_get: increments the reference count of a CTF IR object.
+ *
+ * The same number of bt_ctf_get() and bt_ctf_put() (plus one extra
+ * bt_ctf_put() to release the initial reference done at creation) have
+ * to be done to destroy a CTF IR object.
+ *
+ * It is safe to call this function with a NULL object.
+ *
+ * @param obj CTF IR object.
+ */
+static inline
+void bt_ctf_get(void *obj)
+{
+ if (obj) {
+ struct bt_ctf_base *base = obj;
+
+ bt_ref_get(&base->ref_count);
+ }
+}
+
+/*
+ * bt_ctf_put: decrements the reference count of a CTF IR object.
+ *
+ * The same number of bt_ctf_get() and bt_ctf_put() (plus one extra
+ * bt_ctf_put() to release the initial reference done at creation) have
+ * to be done to destroy a CTF IR object.
+ *
+ * When the object's reference count is decremented to 0 by a call to
+ * bt_ctf_put(), the object is freed.
+ *
+ * It is safe to call this function with a NULL object.
+ *
+ * @param obj CTF IR object.
+ */
+static inline
+void bt_ctf_put(void *obj)
+{
+ if (obj) {
+ struct bt_ctf_base *base = obj;
+
+ bt_ref_put(&base->ref_count);
+ }
+}
+
+#endif /* BABELTRACE_CTF_IR_REF_H */