initial example for instatiation/inheritence following #802 (#812)

examples/CMakeLists.txt

@@ -64,6 +64,9 @@ target_link_libraries(server_instantiation ${LIBS})
 add_executable(server_repeated_job server_repeated_job.c $<TARGET_OBJECTS:open62541-object>)
 target_link_libraries(server_repeated_job ${LIBS})
 
+add_executable(server_inheritance server_inheritance.c $<TARGET_OBJECTS:open62541-object>)
+target_link_libraries(server_inheritance ${LIBS})
+
 if(UA_BUILD_EXAMPLES_NODESET_COMPILER)
   add_executable(server_nodeset server_nodeset.c ${PROJECT_BINARY_DIR}/src_generated/nodeset.c $<TARGET_OBJECTS:open62541-object>)
   target_link_libraries(server_nodeset ${LIBS})

examples/server_inheritance.c

@@ -0,0 +1,138 @@
+/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
+ * See http://creativecommons.org/publicdomain/zero/1.0/ for more information. */
+
+#include <signal.h>
+
+#ifdef UA_NO_AMALGAMATION
+#include "ua_types.h"
+#include "ua_server.h"
+#include "ua_config_standard.h"
+#include "ua_network_tcp.h"
+#else
+#include "open62541.h"
+#endif
+
+UA_Boolean running = true;
+static void stopHandler(int sig) {
+    running = false;
+}
+
+int main(void) {
+    signal(SIGINT,  stopHandler);
+    signal(SIGTERM, stopHandler);
+
+    UA_ServerConfig config = UA_ServerConfig_standard;
+    UA_ServerNetworkLayer nl = UA_ServerNetworkLayerTCP(UA_ConnectionConfig_standard, 16664);
+    config.networkLayers = &nl;
+    config.networkLayersSize = 1;
+    UA_Server *server = UA_Server_new(config);
+
+
+    /* Create a rudimentary objectType
+     *
+     * Type:
+     * + MamalType
+     *  v- Class  = "mamalia"
+     *  v- Species
+     *  o- Abilities
+     *      v- MakeSound
+     *      v- Breathe = True
+     *  + DogType
+     *      v- Species = "Canis"
+     *      v- Name
+     *      o- Abilities
+     *          v- MakeSound = "Wuff"
+     *           v- FetchNewPaper
+     */
+    UA_StatusCode retval;
+    UA_ObjectTypeAttributes otAttr;
+    UA_ObjectTypeAttributes_init(&otAttr);
+
+    otAttr.description = UA_LOCALIZEDTEXT("en_US", "A mamal");
+    otAttr.displayName = UA_LOCALIZEDTEXT("en_US", "MamalType");
+    UA_Server_addObjectTypeNode(server, UA_NODEID_NUMERIC(1, 10000),
+                                UA_NODEID_NUMERIC(0, UA_NS0ID_BASEOBJECTTYPE), UA_NODEID_NUMERIC(0, UA_NS0ID_HASSUBTYPE),
+                                UA_QUALIFIEDNAME(1, "MamalType"), otAttr, NULL, NULL);
+
+    UA_VariableAttributes   vAttr;
+    UA_VariableAttributes_init(&vAttr);
+    vAttr.description =  UA_LOCALIZEDTEXT("en_US", "This mamals class");
+    vAttr.displayName =  UA_LOCALIZEDTEXT("en_US", "Class");
+    UA_String classVar = UA_STRING("mamalia");
+    UA_Variant_setScalarCopy(&vAttr.value, &classVar, &UA_TYPES[UA_TYPES_STRING]);
+    UA_Server_addVariableNode(server, UA_NODEID_NUMERIC(1, 10001),
+                              UA_NODEID_NUMERIC(1, 10000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY),
+                              UA_QUALIFIEDNAME(1, "Class"), UA_NODEID_NULL, vAttr, NULL, NULL);
+
+    UA_VariableAttributes_init(&vAttr);
+    vAttr.description =  UA_LOCALIZEDTEXT("en_US", "This mamals species");
+    vAttr.displayName =  UA_LOCALIZEDTEXT("en_US", "Species");
+    UA_Server_addVariableNode(server, UA_NODEID_NUMERIC(1, 10002),
+                            UA_NODEID_NUMERIC(1, 10000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY),
+                            UA_QUALIFIEDNAME(1, "Species"), UA_NODEID_NULL, vAttr, NULL, NULL);
+
+
+
+    UA_ObjectTypeAttributes_init(&otAttr);
+    otAttr.description = UA_LOCALIZEDTEXT("en_US", "A dog, subtype of mamal");
+    otAttr.displayName = UA_LOCALIZEDTEXT("en_US", "DogType");
+    UA_Server_addObjectTypeNode(server, UA_NODEID_NUMERIC(1, 20000),
+                                UA_NODEID_NUMERIC(1, 10000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASSUBTYPE),
+                                UA_QUALIFIEDNAME(1, "DogType"), otAttr, NULL, NULL);
+
+    UA_VariableAttributes_init(&vAttr);
+    vAttr.description =  UA_LOCALIZEDTEXT("en_US", "This dogs species");
+    vAttr.displayName =  UA_LOCALIZEDTEXT("en_US", "Species");
+    UA_String defaultSpecies = UA_STRING("Canis");
+    UA_Variant_setScalarCopy(&vAttr.value, &defaultSpecies, &UA_TYPES[UA_TYPES_STRING]);
+    UA_Server_addVariableNode(server, UA_NODEID_NUMERIC(1, 20001),
+                            UA_NODEID_NUMERIC(1, 20000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY),
+                            UA_QUALIFIEDNAME(1, "Species"), UA_NODEID_NULL, vAttr, NULL, NULL);
+
+    UA_VariableAttributes_init(&vAttr);
+    vAttr.description =  UA_LOCALIZEDTEXT("en_US", "This dogs name");
+    vAttr.displayName =  UA_LOCALIZEDTEXT("en_US", "Name");
+    UA_String defaultName = UA_STRING("unnamed dog");
+    UA_Variant_setScalarCopy(&vAttr.value, &defaultName, &UA_TYPES[UA_TYPES_STRING]);
+    UA_Server_addVariableNode(server, UA_NODEID_NUMERIC(1, 20002),
+                              UA_NODEID_NUMERIC(1, 20000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY),
+                              UA_QUALIFIEDNAME(1, "Name"), UA_NODEID_NULL, vAttr, NULL, NULL);
+
+
+    /* Instatiate a dog named bello:
+     * (O) Objects
+     *   + O Bello <DogType>
+     *     + Age
+     *     + Name
+     */
+
+    UA_ObjectAttributes oAttr;
+    UA_ObjectAttributes_init(&oAttr);
+    oAttr.description = UA_LOCALIZEDTEXT("en_US", "A dog named Bello");
+    oAttr.displayName = UA_LOCALIZEDTEXT("en_US", "Bello");
+    UA_Server_addObjectNode(server, UA_NODEID_NUMERIC(1, 0),
+                            UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER), UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT),
+                            UA_QUALIFIEDNAME(1, "Bello"), UA_NODEID_NUMERIC(1, 20000), oAttr, NULL, NULL);
+
+
+    UA_ObjectAttributes_init(&oAttr);
+    oAttr.description = UA_LOCALIZEDTEXT("en_US", "Another dog");
+    oAttr.displayName = UA_LOCALIZEDTEXT("en_US", "Dog2");
+    UA_Server_addObjectNode(server, UA_NODEID_NUMERIC(1, 0),
+                            UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER), UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT),
+                            UA_QUALIFIEDNAME(1, "Dog2"), UA_NODEID_NUMERIC(1, 20000), oAttr, NULL, NULL);
+
+
+    UA_ObjectAttributes_init(&oAttr);
+    oAttr.description = UA_LOCALIZEDTEXT("en_US", "A mamal");
+    oAttr.displayName = UA_LOCALIZEDTEXT("en_US", "Mamal1");
+    UA_Server_addObjectNode(server, UA_NODEID_NUMERIC(1, 0),
+                            UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER), UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT),
+                            UA_QUALIFIEDNAME(1, "Mamal1"), UA_NODEID_NUMERIC(1, 10000), oAttr, NULL, NULL);
+
+
+    retval = UA_Server_run(server, &running);
+    UA_Server_delete(server);
+    nl.deleteMembers(&nl);
+    return (int)retval;
+}