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opc source code

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flower_linux
2026-06-09 17:27:24 +08:00
parent 70f675a48b
commit f0da5cb3c3
2002 changed files with 269812 additions and 7 deletions
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186
third_party/open62541/examples/client_historical.c vendored Normal file
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/* 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/client_config_default.h>
#include <open62541/client_highlevel.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef UA_ENABLE_EXPERIMENTAL_HISTORIZING
static void
printUpdateType(UA_HistoryUpdateType type) {
switch (type) {
case UA_HISTORYUPDATETYPE_INSERT:
printf("Insert\n");
return;
case UA_HISTORYUPDATETYPE_REPLACE:
printf("Replace\n");
return;
case UA_HISTORYUPDATETYPE_UPDATE:
printf("Update\n");
return;
case UA_HISTORYUPDATETYPE_DELETE:
printf("Delete\n");
return;
default:
printf("Unknown\n");
return;
}
}
#endif
static void
printTimestamp(char *name, UA_DateTime date) {
UA_DateTimeStruct dts = UA_DateTime_toStruct(date);
if (name)
printf("%s: %02u-%02u-%04u %02u:%02u:%02u.%03u, ", name,
dts.day, dts.month, dts.year, dts.hour, dts.min, dts.sec, dts.milliSec);
else
printf("%02u-%02u-%04u %02u:%02u:%02u.%03u, ",
dts.day, dts.month, dts.year, dts.hour, dts.min, dts.sec, dts.milliSec);
}
static void
printDataValue(UA_DataValue *value) {
/* Print status and timestamps */
if (value->hasServerTimestamp)
printTimestamp("ServerTime", value->serverTimestamp);
if (value->hasSourceTimestamp)
printTimestamp("SourceTime", value->sourceTimestamp);
if (value->hasStatus)
printf("Status 0x%08x, ", value->status);
if (value->value.type == &UA_TYPES[UA_TYPES_UINT32]) {
UA_UInt32 hrValue = *(UA_UInt32 *)value->value.data;
printf("Uint32Value %u\n", hrValue);
}
if (value->value.type == &UA_TYPES[UA_TYPES_DOUBLE]) {
UA_Double hrValue = *(UA_Double *)value->value.data;
printf("DoubleValue %f\n", hrValue);
}
}
static UA_Boolean
readRaw(const UA_HistoryData *data) {
printf("readRaw Value count: %lu\n", (long unsigned)data->dataValuesSize);
/* Iterate over all values */
for (UA_UInt32 i = 0; i < data->dataValuesSize; ++i)
{
printDataValue(&data->dataValues[i]);
}
/* We want more data! */
return true;
}
#ifdef UA_ENABLE_EXPERIMENTAL_HISTORIZING
static UA_Boolean
readRawModified(const UA_HistoryModifiedData *data) {
printf("readRawModified Value count: %lu\n", (long unsigned)data->dataValuesSize);
/* Iterate over all values */
for(size_t i = 0; i < data->dataValuesSize; ++i) {
printDataValue(&data->dataValues[i]);
}
printf("Modificaton Value count: %llu\n",
(long long unsigned)data->modificationInfosSize);
for(size_t j = 0; j < data->modificationInfosSize; ++j) {
if(data->modificationInfos[j].userName.data)
printf("Username: %s, ", data->modificationInfos[j].userName.data);
printTimestamp("Modtime", data->modificationInfos[j].modificationTime);
printUpdateType(data->modificationInfos[j].updateType);
}
/* We want more data! */
return true;
}
static UA_Boolean
readEvents(const UA_HistoryEvent *data) {
printf("readEvent Value count: %lu\n", (long unsigned)data->eventsSize);
for (size_t i = 0; i < data->eventsSize; ++i) {
printf("Processing event: %lu\n", (long unsigned)i);
for (size_t j = 0; j < data->events[i].eventFieldsSize; ++j) {
printf("Processing %lu: %s\n", (long unsigned)j, data->events[i].eventFields[j].type->typeName);
}
}
return true;
}
#endif
static UA_Boolean
readHist(UA_Client *client, const UA_NodeId *nodeId,
UA_Boolean moreDataAvailable,
const UA_ExtensionObject *data, void *unused) {
printf("\nRead historical callback:\n");
printf("\tHas more data:\t%d\n\n", moreDataAvailable);
if (data->content.decoded.type == &UA_TYPES[UA_TYPES_HISTORYDATA]) {
return readRaw((UA_HistoryData*)data->content.decoded.data);
}
#ifdef UA_ENABLE_EXPERIMENTAL_HISTORIZING
if (data->content.decoded.type == &UA_TYPES[UA_TYPES_HISTORYMODIFIEDDATA]) {
return readRawModified((UA_HistoryModifiedData*)data->content.decoded.data);
}
if (data->content.decoded.type == &UA_TYPES[UA_TYPES_HISTORYEVENT]) {
return readEvents((UA_HistoryEvent*)data->content.decoded.data);
}
#endif
return true;
}
int main(int argc, char *argv[]) {
UA_Client *client = UA_Client_new();
UA_ClientConfig_setDefault(UA_Client_getConfig(client));
/* Connect to the Unified Automation demo server */
UA_StatusCode retval = UA_Client_connect(client, "opc.tcp://localhost:4840/");
if(retval != UA_STATUSCODE_GOOD) {
printf("Could not connect\n");
UA_Client_delete(client);
return EXIT_SUCCESS;
}
/* Read historical values (uint32) */
printf("\nStart historical read (1, \"myUintValue\"):\n");
UA_NodeId node = UA_NODEID_STRING(2, "MyLevel");
retval = UA_Client_HistoryRead_raw(client, &node, readHist,
UA_DateTime_fromUnixTime(0), UA_DateTime_now(), UA_STRING_NULL,
false, 10, UA_TIMESTAMPSTORETURN_BOTH, (void *)UA_FALSE);
if (retval != UA_STATUSCODE_GOOD) {
printf("Failed. %s\n", UA_StatusCode_name(retval));
}
#ifdef UA_ENABLE_EXPERIMENTAL_HISTORIZING
printf("\nStart historical modified read (1, \"myUintValue\"):\n");
retval = UA_Client_HistoryRead_modified(client, &node, readHist,
UA_DateTime_fromUnixTime(0), UA_DateTime_now(), UA_STRING_NULL,
false, 10, UA_TIMESTAMPSTORETURN_BOTH, (void *)UA_FALSE);
if (retval != UA_STATUSCODE_GOOD) {
printf("Failed. %s\n", UA_StatusCode_name(retval));
}
printf("\nStart historical event read (1, \"myUintValue\"):\n");
UA_EventFilter filter;
UA_EventFilter_init(&filter);
UA_NodeId eventNode = UA_NODEID_NUMERIC(0, 2253);
retval = UA_Client_HistoryRead_events(client, &eventNode, readHist,
UA_DateTime_fromUnixTime(0), UA_DateTime_now(), UA_STRING_NULL,
filter, 10, UA_TIMESTAMPSTORETURN_BOTH, (void *)UA_FALSE);
if (retval != UA_STATUSCODE_GOOD) {
printf("Failed. %s\n", UA_StatusCode_name(retval));
}
#endif
UA_Client_disconnect(client);
UA_Client_delete(client);
return 0;
}