Rename: bt_put(), bt_get() -> bt_object_put_ref(), bt_object_get_ref()

[babeltrace.git] / lib / object.c

diff --git a/lib/object.c b/lib/object.c
new file mode 100644 (file)
index 0000000..0f7261a
--- /dev/null
+++ b/lib/object.c
@@ -0,0 +1,60 @@
+/*
+ * ref.c: reference counting
+ *
+ * Babeltrace Library
+ *
+ * Copyright (c) 2015 Jérémie Galarneau <jeremie.galarneau@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.
+ */
+
+#define BT_LOG_TAG "OBJECT"
+#include <babeltrace/lib-logging-internal.h>
+
+#include <babeltrace/assert-pre-internal.h>
+#include <babeltrace/object-internal.h>
+
+void *bt_object_get_ref(void *ptr)
+{
+       struct bt_object *obj = ptr;
+
+       if (unlikely(!obj)) {
+               goto end;
+       }
+
+       BT_ASSERT_PRE(obj->is_shared, "Object is not shared: addr=%p", obj);
+       bt_object_get_no_null_check(obj);
+
+end:
+       return ptr;
+}
+
+void bt_object_put_ref(void *ptr)
+{
+       struct bt_object *obj = ptr;
+
+       if (unlikely(!obj)) {
+               return;
+       }
+
+       BT_ASSERT_PRE(obj->is_shared, "Object is not shared: addr=%p", obj);
+       BT_ASSERT_PRE(bt_object_get_ref_count(obj) > 0,
+               "Decrementing a reference count set to 0: addr=%p", ptr);
+       bt_object_put_no_null_check(obj);
+}