opc source code

2026-06-09 17:27:24 +08:00
parent 70f675a48b
commit f0da5cb3c3
2002 changed files with 269812 additions and 7 deletions
--- a/third_party/open62541/examples/server_instantiation.c
+++ b/third_party/open62541/examples/server_instantiation.c
@@ -0,0 +1,87 @@
+/* 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 <open62541/plugin/log_stdout.h>
+#include <open62541/server.h>
+#include <open62541/server_config_default.h>
+
+#include <signal.h>
+#include <stdlib.h>
+
+UA_Boolean running = true;
+static void stopHandler(int sig) {
+    running = false;
+}
+
+int main(void) {
+    signal(SIGINT,  stopHandler);
+    signal(SIGTERM, stopHandler);
+
+    UA_Server *server = UA_Server_new();
+    UA_ServerConfig_setDefault(UA_Server_getConfig(server));
+
+    /* Create a rudimentary objectType
+     *
+     * BaseObjectType
+     * |
+     * +- (OT) MamalType
+     *    + (V) Age
+     *    + (OT) DogType
+     *      |
+     *      + (V) Name
+     */
+    UA_StatusCode retval;
+    UA_ObjectTypeAttributes otAttr = UA_ObjectTypeAttributes_default;
+    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_default;
+    vAttr.description =  UA_LOCALIZEDTEXT("en-US", "This mamals Age in months");
+    vAttr.displayName =  UA_LOCALIZEDTEXT("en-US", "Age");
+    UA_UInt32 ageVar = 0;
+    UA_Variant_setScalar(&vAttr.value, &ageVar, &UA_TYPES[UA_TYPES_UINT32]);
+    UA_Server_addVariableNode(server, UA_NODEID_NUMERIC(1, 10001),
+                              UA_NODEID_NUMERIC(1, 10000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY),
+                              UA_QUALIFIEDNAME(1, "Age"), UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE), vAttr, NULL, NULL);
+
+    otAttr = UA_ObjectTypeAttributes_default;
+    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, 10002),
+                                UA_NODEID_NUMERIC(1, 10000), UA_NODEID_NUMERIC(0, UA_NS0ID_HASSUBTYPE),
+                                UA_QUALIFIEDNAME(1, "DogType"), otAttr, NULL, NULL);
+
+    vAttr = UA_VariableAttributes_default;
+    vAttr.description =  UA_LOCALIZEDTEXT("en-US", "This mamals Age in months");
+    vAttr.displayName =  UA_LOCALIZEDTEXT("en-US", "Name");
+    UA_String defaultName = UA_STRING("unnamed dog");
+    UA_Variant_setScalar(&vAttr.value, &defaultName, &UA_TYPES[UA_TYPES_STRING]);
+    UA_Server_addVariableNode(server, UA_NODEID_NUMERIC(1, 10003),
+                              UA_NODEID_NUMERIC(1, 10002), UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY),
+                              UA_QUALIFIEDNAME(1, "Name"), UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE), vAttr, NULL, NULL);
+
+    /* Instatiate a dog named bello:
+     * (O) Objects
+     *   + O Bello <DogType>
+     *     + Age
+     *     + Name
+     */
+
+    UA_ObjectAttributes oAttr = UA_ObjectAttributes_default;
+    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, 10002),
+                            oAttr, NULL, NULL);
+
+    retval = UA_Server_run(server, &running);
+
+    UA_Server_delete(server);
+    return retval == UA_STATUSCODE_GOOD ? EXIT_SUCCESS : EXIT_FAILURE;
+}