github/open62541
7
0
Fork 0
mirror of https://github.com/open62541/open62541.git synced 2025-06-03 04:00:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

Clean up the MQTT example

Browse Source
This commit is contained in:
Julius Pfrommer 2018-12-04 14:35:01 +01:00
parent cdc03e6bce
commit 664cd0ec21
1 changed files with 11 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

96
examples/pubsub/tutorial_pubsub_mqtt.c
View File

@ -51,6 +51,8 @@ UA_NodeId connectionIdent, publishedDataSetIdent, writerGroupIdent;
UA_Server *server;
UA_Client *client;
UA_NetworkAddressUrlDataType networkAddressUrl;
static void
addPubSubConnection(UA_Server *server){
/* Details about the connection configuration and handling are located
@ -61,8 +63,6 @@ addPubSubConnection(UA_Server *server){
connectionConfig.transportProfileUri =
UA_STRING("http://opcfoundation.org/UA-Profile/Transport/pubsub-mqtt");
connectionConfig.enabled = UA_TRUE;
UA_NetworkAddressUrlDataType networkAddressUrl =
{UA_STRING_NULL , UA_STRING("opc.mqtt://192.168.56.1:1883/")};
UA_Variant_setScalar(&connectionConfig.address, &networkAddressUrl,
&UA_TYPES[UA_TYPES_NETWORKADDRESSURLDATATYPE]);
connectionConfig.publisherId.numeric = UA_UInt32_random();
@ -143,7 +143,7 @@ addDataSetField(UA_Server *server) {
dataSetFieldConfig2.field.variable.fieldNameAlias = UA_STRING("x-axis");
dataSetFieldConfig2.field.variable.promotedField = UA_FALSE;
dataSetFieldConfig2.field.variable.publishParameters.publishedVariable = UA_NODEID_STRING(1, "x");
dataSetFieldConfig2.field.variable.publishParameters.publishedVariable = UA_NODEID_NUMERIC(1, 42);
dataSetFieldConfig2.field.variable.publishParameters.attributeId = UA_ATTRIBUTEID_VALUE;
UA_Server_addDataSetField(server, publishedDataSetIdent, &dataSetFieldConfig2, &dataSetFieldIdent2);
}
@ -299,90 +299,16 @@ addSubscription(UA_Server *server, UA_PubSubConnection *connection){
return;
}
static void
deleteSubscriptionCallback(UA_Client *c, UA_UInt32 subscriptionId, void *subscriptionContext) {
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
"Subscription Id %u was deleted", subscriptionId);
}
static void
handler_XChanged(UA_Client *c, UA_UInt32 subId, void *subContext,
UA_UInt32 monId, void *monContext, UA_DataValue *value) {
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, "x axis has changed!");
UA_Server_writeValue(server, UA_NODEID_STRING(1, "x"), value->value);
}
static void
processClientCallback(UA_Server *server, void *data) {
UA_Client_run_iterate(client, 1);
}
static void
addVariable2(UA_Server *server) {
/* Define the attribute of the myInteger variable node */
UA_VariableAttributes attr = UA_VariableAttributes_default;
UA_Float x = 0.0;
UA_Variant_setScalar(&attr.value, &x, &UA_TYPES[UA_TYPES_FLOAT]);
attr.description = UA_LOCALIZEDTEXT("en-US","x");
attr.displayName = UA_LOCALIZEDTEXT("en-US","x");
attr.dataType = UA_TYPES[UA_TYPES_FLOAT].typeId;
attr.accessLevel = UA_ACCESSLEVELMASK_READ | UA_ACCESSLEVELMASK_WRITE;
/* Add the variable node to the information model */
UA_NodeId myIntegerNodeId = UA_NODEID_STRING(1, "x");
UA_QualifiedName myIntegerName = UA_QUALIFIEDNAME(1, "x");
UA_NodeId parentNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER);
UA_NodeId parentReferenceNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES);
UA_Server_addVariableNode(server, myIntegerNodeId, parentNodeId,
parentReferenceNodeId, myIntegerName,
UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE), attr, NULL, NULL);
}
static void
addClientSubscription(UA_Server *server) {
addVariable2(server);
UA_ClientConfig cconfig = UA_ClientConfig_default;
/* Set stateCallback */
//cconfig.stateCallback = stateCallback;
//cconfig.subscriptionInactivityCallback = subscriptionInactivityCallback;
client = UA_Client_new(cconfig);
UA_StatusCode retval = UA_Client_connect(client, "opc.tcp://192.168.56.1:16664");
if(retval != UA_STATUSCODE_GOOD)
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "Could not connect to the client");
UA_CreateSubscriptionRequest request = UA_CreateSubscriptionRequest_default();
UA_CreateSubscriptionResponse response =
UA_Client_Subscriptions_create(client, request,
NULL, NULL, deleteSubscriptionCallback);
UA_MonitoredItemCreateRequest monRequest =
UA_MonitoredItemCreateRequest_default(UA_NODEID_NUMERIC(0, 50510));
// UA_MonitoredItemCreateRequest_default(UA_NODEID_NUMERIC(0, UA_NS0ID_SERVER_SERVERSTATUS_CURRENTTIME));
UA_MonitoredItemCreateResult monResponse =
UA_Client_MonitoredItems_createDataChange(client, response.subscriptionId,
UA_TIMESTAMPSTORETURN_BOTH,
monRequest, NULL, handler_XChanged, NULL);
if(monResponse.statusCode == UA_STATUSCODE_GOOD)
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
"Monitoring UA_NS0ID_SERVER_SERVERSTATUS_CURRENTTIME', id %u",
monResponse.monitoredItemId);
else
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
"Monitoring the x axis");
retval = UA_Server_addRepeatedCallback(server, processClientCallback, NULL, 200, NULL);
if(retval != UA_STATUSCODE_GOOD)
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, "cannot iterate client %s",
UA_StatusCode_name(retval));
}
int main(void) {
int main(int argc, char **argv) {
signal(SIGINT, stopHandler);
signal(SIGTERM, stopHandler);
networkAddressUrl.networkInterface = UA_STRING_NULL;
networkAddressUrl.url = UA_STRING("opc.mqtt://127.0.0.1:1883/");
if(argc > 1 && strncmp(argv[1], "opc.mqtt://", 11) == 0) {
networkAddressUrl.url = UA_STRING(argv[1]);
}
UA_StatusCode retval = UA_STATUSCODE_GOOD;
UA_ServerConfig *config = UA_ServerConfig_new_default();
/* Details about the connection configuration and handling are located in
@ -412,7 +338,7 @@ int main(void) {
addSubscription(server, connection);
}
addClientSubscription(server);
//addClientSubscription(server);
retval |= UA_Server_run(server, &running);
UA_Server_delete(server);