int (*process_msg)(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
};
-pa_msgobject *pa_msgobject_new_internal(size_t size, const char *type_id, pa_bool_t (*check_type)(const char *type_name));
+pa_msgobject *pa_msgobject_new_internal(size_t size, const char *type_id, bool (*check_type)(const char *type_name));
#define pa_msgobject_new(type) ((type*) pa_msgobject_new_internal(sizeof(type), type##_type_id, type##_check_type))
#define pa_msgobject_free ((void (*) (pa_msgobject* o)) pa_object_free)