mirror of
https://github.com/open62541/open62541.git
synced 2026-10-19 06:21:12 +08:00
Florian Huber
5af4e6cd19
The parameters are evaluated in UA_PubSubChannelUDPMC_open [plugins/ua_pubsub_udp.c] and are expected to be of type BOOLEAN. Using UINT32 for either of them will cause the options not to be evaluated and hence not used.
87 lines
3.9 KiB
C
87 lines
3.9 KiB
C
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/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
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* See http://creativecommons.org/publicdomain/zero/1.0/ for more information. */
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#include <open62541/plugin/log_stdout.h>
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#include <open62541/plugin/pubsub_udp.h>
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#include <open62541/server.h>
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#include <open62541/server_config_default.h>
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#include <signal.h>
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#include <stdlib.h>
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UA_Boolean running = true;
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static void stopHandler(int sign) {
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UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "received ctrl-c");
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running = false;
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}
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/**
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* The PubSub connection example demonstrate the PubSub TransportLayer configuration and
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* the dynamic creation of PubSub Connections on runtime.
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*/
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int main(void) {
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signal(SIGINT, stopHandler);
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signal(SIGTERM, stopHandler);
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UA_Server *server = UA_Server_new();
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UA_ServerConfig *config = UA_Server_getConfig(server);
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UA_ServerConfig_setDefault(config);
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/* Add the PubSubTransportLayer implementation to the server config.
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* The PubSubTransportLayer is a factory to create new connections
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* on runtime. The UA_PubSubTransportLayer is used for all kinds of
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* concrete connections e.g. UDP, MQTT, AMQP...
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*/
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config->pubsubTransportLayers = (UA_PubSubTransportLayer *) UA_malloc(sizeof(UA_PubSubTransportLayer));
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if(!config->pubsubTransportLayers) {
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UA_Server_delete(server);
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return -1;
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}
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/* It is possible to use multiple PubSubTransportLayers on runtime. The correct factory
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* is selected on runtime by the standard defined PubSub TransportProfileUri's. */
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config->pubsubTransportLayers[0] = UA_PubSubTransportLayerUDPMP();
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config->pubsubTransportLayersSize++;
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/* Create a new ConnectionConfig. The addPubSubConnection function takes the
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* config and create a new connection. The Connection identifier is
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* copied to the NodeId parameter.*/
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UA_PubSubConnectionConfig connectionConfig;
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memset(&connectionConfig, 0, sizeof(connectionConfig));
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connectionConfig.name = UA_STRING("UDP-UADP Connection 1");
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connectionConfig.transportProfileUri = UA_STRING("http://opcfoundation.org/UA-Profile/Transport/pubsub-udp-uadp");
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connectionConfig.enabled = UA_TRUE;
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/* The address and interface is part of the standard
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* defined UA_NetworkAddressUrlDataType. */
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UA_NetworkAddressUrlDataType networkAddressUrl = {UA_STRING_NULL , UA_STRING("opc.udp://224.0.0.22:4840/")};
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UA_Variant_setScalar(&connectionConfig.address, &networkAddressUrl, &UA_TYPES[UA_TYPES_NETWORKADDRESSURLDATATYPE]);
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connectionConfig.publisherId.numeric = UA_UInt32_random();
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/* Connection options are given as Key/Value Pairs. The available options are
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* maybe standard or vendor defined. */
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UA_KeyValuePair connectionOptions[3];
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connectionOptions[0].key = UA_QUALIFIEDNAME(0, "ttl");
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UA_UInt32 ttl = 10;
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UA_Variant_setScalar(&connectionOptions[0].value, &ttl, &UA_TYPES[UA_TYPES_UINT32]);
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connectionOptions[1].key = UA_QUALIFIEDNAME(0, "loopback");
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UA_Boolean loopback = UA_FALSE;
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UA_Variant_setScalar(&connectionOptions[1].value, &loopback, &UA_TYPES[UA_TYPES_BOOLEAN]);
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connectionOptions[2].key = UA_QUALIFIEDNAME(0, "reuse");
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UA_Boolean reuse = UA_TRUE;
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UA_Variant_setScalar(&connectionOptions[2].value, &reuse, &UA_TYPES[UA_TYPES_BOOLEAN]);
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connectionConfig.connectionProperties = connectionOptions;
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connectionConfig.connectionPropertiesSize = 3;
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/* Create a new concrete connection and add the connection
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* to the current PubSub configuration. */
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UA_NodeId connectionIdentifier;
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UA_StatusCode retval = UA_Server_addPubSubConnection(server, &connectionConfig, &connectionIdentifier);
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if(retval == UA_STATUSCODE_GOOD){
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UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER,
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"The PubSub Connection was created successfully!");
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}
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retval |= UA_Server_run(server, &running);
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UA_Server_delete(server);
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return retval == UA_STATUSCODE_GOOD ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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