lib: make graph API const-correct

[babeltrace.git] / include / babeltrace / graph / component-filter-const.h

diff --git a/include/babeltrace/graph/component-filter-const.h b/include/babeltrace/graph/component-filter-const.h
new file mode 100644 (file)
index 0000000..015ae22
--- /dev/null
+++ b/include/babeltrace/graph/component-filter-const.h
@@ -0,0 +1,72 @@
+#ifndef BABELTRACE_GRAPH_COMPONENT_FILTER_CONST_H
+#define BABELTRACE_GRAPH_COMPONENT_FILTER_CONST_H
+
+/*
+ * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Author: 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.
+ */
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct bt_component;
+struct bt_component_filter;
+struct bt_port_input;
+struct bt_port_output;
+
+static inline
+const struct bt_component *bt_component_filter_as_component_const(
+               const struct bt_component_filter *component)
+{
+       return (const void *) component;
+}
+
+extern uint64_t bt_component_filter_get_input_port_count(
+               const struct bt_component_filter *component);
+
+extern const struct bt_port_input *
+bt_component_filter_borrow_input_port_by_name_const(
+               const struct bt_component_filter *component, const char *name);
+
+extern const struct bt_port_input *
+bt_component_filter_borrow_input_port_by_index_const(
+               const struct bt_component_filter *component, uint64_t index);
+
+extern uint64_t bt_component_filter_get_output_port_count(
+               const struct bt_component_filter *component);
+
+extern const struct bt_port_output *
+bt_component_filter_borrow_output_port_by_name_const(
+               const struct bt_component_filter *component, const char *name);
+
+extern const struct bt_port_output *
+bt_component_filter_borrow_output_port_by_index_const(
+               const struct bt_component_filter *component, uint64_t index);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BABELTRACE_GRAPH_COMPONENT_FILTER_CONST_H */