int main(int argc, char** argv) {
signal(SIGINT, stopHandler); /* catches ctrl-c */
UA_Server *server = UA_Server_new(UA_ServerConfig_standard);
UA_Server_setLogger(server, logger);
UA_Server_addNetworkLayer(server, ServerNetworkLayerTCP_new(UA_ConnectionConfig_standard, 16664));
UA_Int32 myInteger = 42;
/* add a variable node to the address space */
UA_NodeId myIntegerNodeId = UA_NODEID_STRING(1, "the.answer");
UA_QualifiedName myIntegerName = UA_QUALIFIEDNAME(1, "the answer");
UA_DataSource dateDataSource = (UA_DataSource) {
.handle = &myInteger, .read = readInteger, .write = writeInteger};
UA_VariableAttributes attr;
UA_VariableAttributes_init(&attr);
attr.description = UA_LOCALIZEDTEXT("en_US","the answer");
attr.displayName = UA_LOCALIZEDTEXT("en_US","the answer");
UA_Server_addDataSourceVariableNode(server, myIntegerNodeId,
UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
myIntegerName, UA_NODEID_NULL, attr, dateDataSource, NULL);
UA_StatusCode retval = UA_Server_run(server, 1, &running);
UA_Server_delete(server);
return retval;
}
int main(int argc, char** argv) {
signal(SIGINT, stopHandler); /* catches ctrl-c */
#ifdef UA_MULTITHREADING
pthread_rwlock_init(&writeLock, 0);
#endif
UA_Server *server = UA_Server_new(UA_ServerConfig_standard);
logger = Logger_Stdout_new();
UA_Server_setLogger(server, logger);
UA_ByteString certificate = loadCertificate();
UA_Server_setServerCertificate(server, certificate);
UA_ByteString_deleteMembers(&certificate);
UA_Server_addNetworkLayer(server, ServerNetworkLayerTCP_new(UA_ConnectionConfig_standard, 16664));
// add node with the datetime data source
UA_DataSource dateDataSource = (UA_DataSource)
{.handle = NULL,
.read = readTimeData,
.release = releaseTimeData,
.write = NULL};
const UA_QualifiedName dateName = UA_QUALIFIEDNAME(1, "current time");
UA_Server_addDataSourceVariableNode(server, dateDataSource, dateName, UA_NODEID_NULL,
UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES));
//cpu temperature monitoring for linux machines
if((temperatureFile = fopen("/sys/class/thermal/thermal_zone0/temp", "r"))){
// add node with the data source
UA_DataSource temperatureDataSource = (UA_DataSource)
{.handle = NULL,
.read = readTemperature,
.release = releaseTemperature,
.write = NULL};
const UA_QualifiedName tempName = UA_QUALIFIEDNAME(1, "cpu temperature");
UA_Server_addDataSourceVariableNode(server, temperatureDataSource, tempName, UA_NODEID_NULL,
UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES));
}
int main(int argc, char** argv) {
signal(SIGINT, stopHandler); /* catches ctrl-c */
/* initialize the server */
UA_Server *server = UA_Server_new(UA_ServerConfig_standard);
UA_Server_setLogger(server, logger);
UA_Server_addNetworkLayer(server, ServerNetworkLayerTCP_new(UA_ConnectionConfig_standard, 16664));
//EXAMPLE 1
/* add the method node with the callback */
UA_Argument inputArguments;
UA_Argument_init(&inputArguments);
inputArguments.arrayDimensionsSize = -1;
inputArguments.arrayDimensions = NULL;
inputArguments.dataType = UA_TYPES[UA_TYPES_STRING].typeId;
inputArguments.description = UA_LOCALIZEDTEXT("en_US", "A String");
inputArguments.name = UA_STRING("MyInput");
inputArguments.valueRank = -1;
UA_Argument outputArguments;
UA_Argument_init(&outputArguments);
outputArguments.arrayDimensionsSize = -1;
outputArguments.arrayDimensions = NULL;
outputArguments.dataType = UA_TYPES[UA_TYPES_STRING].typeId;
outputArguments.description = UA_LOCALIZEDTEXT("en_US", "A String");
outputArguments.name = UA_STRING("MyOutput");
outputArguments.valueRank = -1;
UA_MethodAttributes helloAttr;
UA_MethodAttributes_init(&helloAttr);
helloAttr.description = UA_LOCALIZEDTEXT("en_US","Say `Hello World`");
helloAttr.displayName = UA_LOCALIZEDTEXT("en_US","Hello World");
helloAttr.executable = UA_TRUE;
helloAttr.userExecutable = UA_TRUE;
UA_Server_addMethodNode(server, UA_NODEID_NUMERIC(1,62541),
UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT),
UA_QUALIFIEDNAME(1, "hello world"),
helloAttr, &helloWorldMethod, NULL,
1, &inputArguments, 1, &outputArguments, NULL);
//END OF EXAMPLE 1
//EXAMPLE 2
/* add another method node: output argument as 1d Int32 array*/
// define input arguments
UA_Argument_init(&inputArguments);
inputArguments.arrayDimensionsSize = 1;
UA_UInt32 * pInputDimensions = UA_UInt32_new();
pInputDimensions[0] = 5;
inputArguments.arrayDimensions = pInputDimensions;
inputArguments.dataType = UA_TYPES[UA_TYPES_INT32].typeId;
inputArguments.description = UA_LOCALIZEDTEXT("en_US",
"input an array with 5 elements, type int32");
inputArguments.name = UA_STRING("int32 value");
inputArguments.valueRank = 1;
// define output arguments
UA_Argument_init(&outputArguments);
outputArguments.arrayDimensionsSize = 1;
UA_UInt32 * pOutputDimensions = UA_UInt32_new();
pOutputDimensions[0] = 5;
outputArguments.arrayDimensions = pOutputDimensions;
outputArguments.dataType = UA_TYPES[UA_TYPES_INT32].typeId;
outputArguments.description = UA_LOCALIZEDTEXT("en_US", "increment each array index");
outputArguments.name = UA_STRING("output is the array, each index is incremented by one");
outputArguments.valueRank = 1;
UA_MethodAttributes incAttr;
UA_MethodAttributes_init(&incAttr);
incAttr.description = UA_LOCALIZEDTEXT("en_US","1dArrayExample");
incAttr.displayName = UA_LOCALIZEDTEXT("en_US","1dArrayExample");
incAttr.executable = UA_TRUE;
incAttr.userExecutable = UA_TRUE;
UA_Server_addMethodNode(server, UA_NODEID_STRING(1, "IncInt32ArrayValues"),
UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT),
UA_QUALIFIEDNAME(1, "IncInt32ArrayValues"),
incAttr, &IncInt32ArrayValuesMethod, NULL,
1, &inputArguments, 1, &outputArguments, NULL);
//END OF EXAMPLE 2
/* start server */
UA_StatusCode retval = UA_Server_run(server, 1, &running);
/* ctrl-c received -> clean up */
UA_UInt32_delete(pInputDimensions);
UA_UInt32_delete(pOutputDimensions);
UA_Server_delete(server);
return retval;
}
