init

unitree_SDK/include/ddscxx/dds/topic/TopicTraits.hpp

@@ -0,0 +1,92 @@
+#ifndef OMG_DDS_TOPIC_TOPIC_TRAITS_HPP_
+#define OMG_DDS_TOPIC_TOPIC_TRAITS_HPP_
+
+/* Copyright 2010, Object Management Group, Inc.
+ * Copyright 2010, PrismTech, Corp.
+ * Copyright 2010, Real-Time Innovations, Inc.
+ * All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string>
+
+//==============================================================================
+namespace dds
+{
+namespace topic
+{
+template <typename T>
+struct is_topic_type;
+
+/** @cond */
+template <typename T>
+struct topic_type_support;
+/** @endcond */
+
+/**
+ * @brief
+ * Support functionality to get the default type_name of a Topic type.
+ *
+ * @code{.cpp}
+ * std::string typeName = dds::topic::topic_type_name<Foo::Bar>::value();
+ * @endcode
+ */
+template <typename T>
+struct topic_type_name
+{
+    static std::string value()
+    {
+        return "Undefined";
+    }
+};
+
+}
+}
+
+//==============================================================================
+/**
+ * @brief
+ * Support functionality to check if a given object type is a Topic.
+ *
+ * @code{.cpp}
+ * if (dds::topic::is_topic_type<Foo::Bar>::value) {
+ *     // Foo::Bar type is considered a Topic
+ * } else {
+ *     // Foo::Bar type is NOT considered a Topic
+ * }
+ * @endcode
+ */
+template <typename T>
+struct dds::topic::is_topic_type
+{
+    enum {value = 0 };
+};
+
+
+/** @cond
+ * IsoCpp doesn't know the TypeSupport concept. The type is automatically
+ * registered when an Topic is created. So, what does this function do?
+ */
+template <typename T>
+struct dds::topic::topic_type_support { };
+/** @endcond */
+
+
+#define REGISTER_TOPIC_TYPE(TOPIC_TYPE) \
+    namespace dds { namespace topic { \
+    template<> struct is_topic_type<TOPIC_TYPE> { \
+        enum { value = 1 }; \
+    }; } }
+
+#endif /* OMG_DDS_TOPIC_TOPIC_TRAITS_HPP_ */