lib: strictly type function return status enumerations

[babeltrace.git] / include / babeltrace2 / trace-ir / trace-class-const.h

diff --git a/include/babeltrace2/trace-ir/trace-class-const.h b/include/babeltrace2/trace-ir/trace-class-const.h
index 9cabb87cfd34321d0c59ea39815aa989acf7074c..1ceb6deb6330fa9be0ee5f09fdb3ecf7a192460d 100644 (file)
--- a/include/babeltrace2/trace-ir/trace-class-const.h
+++ b/include/babeltrace2/trace-ir/trace-class-const.h
@@ -27,23 +27,23 @@
  * http://www.efficios.com/ctf
  */
 
+#include <stdint.h>
+
 /*
  * For bt_bool, bt_uuid, bt_trace_class, bt_stream_class,
  * bt_field_class, bt_value
  */
 #include <babeltrace2/types.h>
 
-#include <stdint.h>
+/* For __BT_FUNC_STATUS_* */
+#define __BT_FUNC_STATUS_ENABLE
+#include <babeltrace2/func-status.h>
+#undef __BT_FUNC_STATUS_ENABLE
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-typedef enum bt_trace_class_status {
-       BT_TRACE_CLASS_STATUS_OK = 0,
-       BT_TRACE_CLASS_STATUS_NOMEM = -12,
-} bt_trace_class_status;
-
 typedef void (* bt_trace_class_destruction_listener_func)(
                const bt_trace_class *trace_class, void *data);
 
@@ -77,12 +77,24 @@ bt_trace_class_borrow_stream_class_by_index_const(
 extern const bt_stream_class *bt_trace_class_borrow_stream_class_by_id_const(
                const bt_trace_class *trace_class, uint64_t id);
 
-extern bt_trace_class_status bt_trace_class_add_destruction_listener(
+typedef enum bt_trace_class_add_listener_status {
+       BT_TRACE_CLASS_ADD_LISTENER_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR,
+       BT_TRACE_CLASS_ADD_LISTENER_STATUS_OK           = __BT_FUNC_STATUS_OK,
+} bt_trace_class_add_listener_status;
+
+extern bt_trace_class_add_listener_status
+bt_trace_class_add_destruction_listener(
         const bt_trace_class *trace_class,
         bt_trace_class_destruction_listener_func listener,
         void *data, uint64_t *listener_id);
 
-extern bt_trace_class_status bt_trace_class_remove_destruction_listener(
+typedef enum bt_trace_class_remove_listener_status {
+       BT_TRACE_CLASS_REMOVE_LISTENER_STATUS_MEMORY_ERROR      = __BT_FUNC_STATUS_MEMORY_ERROR,
+       BT_TRACE_CLASS_REMOVE_LISTENER_STATUS_OK                = __BT_FUNC_STATUS_OK,
+} bt_trace_class_remove_listener_status;
+
+extern bt_trace_class_remove_listener_status
+bt_trace_class_remove_destruction_listener(
         const bt_trace_class *trace_class, uint64_t listener_id);
 
 extern void bt_trace_class_get_ref(const bt_trace_class *trace_class);
@@ -106,4 +118,6 @@ extern void bt_trace_class_put_ref(const bt_trace_class *trace_class);
 }
 #endif
 
+#include <babeltrace2/undef-func-status.h>
+
 #endif /* BABELTRACE_TRACE_IR_TRACE_CLASS_CONST_H */