#include <uaclient_config.h>
#include <stdlib.h>
#include <opcua_datetime.h>
#include <opcua_trace.h>
#include <opcua_string.h>
#include <uaclient_module.h>
#include <uaclient_session.h>
#include "samplesubscription.h"
#define UACLIENT_APPLICATION_NAME "UaSdkC - Client - Lesson02"
#define UACLIENT_APPLICATION_URI "urn:UnifiedAutomation:UaSdkC:Client:Lesson02"
#define UACLIENT_PRODUCT_URI "urn:UnifiedAutomation:UaSdkC:Client:Lesson02"
#define SERVER_ENDPOINT_URL "opc.tcp://localhost:48020"
typedef enum _SampleStateMachine
{
State_Idle,
State_Connect,
State_Connected,
State_Subscription,
State_Disconnect,
State_Disconnected,
State_Error
} SampleStateMachine;
typedef struct _SampleClientContext
{
SampleStateMachine State;
} SampleClientContext;
OpcUa_ProxyStubConfiguration *a_pProxyStubConfiguration)
{
OpcUa_InitializeStatus(OpcUa_Module_Client, "InitializeOpcUaStack");
printf("UA Client: Initializing Stack...\n");
a_pProxyStubConfiguration->bProxyStub_Trace_Enabled = OpcUa_True;
a_pProxyStubConfiguration->uProxyStub_Trace_Level = OPCUA_TRACE_OUTPUT_LEVEL_ERROR;
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
OpcUa_FinishErrorHandling;
}
{
OpcUa_InitializeStatus(OpcUa_Module_Client, "CleanupOpcUaStack");
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
OpcUa_FinishErrorHandling;
}
{
SampleClientContext *pClientContext = a_pSession->
pUserData;
const char *pStatus = "INVALID";
switch (a_status)
{
pStatus = "Disconnected";
if (pClientContext->State == State_Connect)
{
printf("UA Client: failed to connect to server!\n");
}
if (pClientContext->State == State_Disconnect)
{
pClientContext->State = State_Disconnected;
}
else
{
pClientContext->State = State_Error;
}
break;
pStatus = "Connected";
if (pClientContext->State == State_Connect)
{
pClientContext->State = State_Connected;
}
else
{
pClientContext->State = State_Error;
}
break;
pStatus = "Connecting";
break;
pStatus = "ConnectionWarningWatchdogTimeout";
break;
pStatus = "ConnectionErrorClientReconnect";
break;
pStatus = "SessionAutomaticallyRecreated";
break;
default: break;
}
printf("\n--> Sample_ConnectionStatusChanged_CB: %s\n\n", pStatus);
}
OpcUa_Boolean a_clientSideError)
{
SampleClientContext *pClientContext = a_pSession->
pUserData;
const char *pServiceType = "INVALID";
switch (a_serviceType)
{
default: break;
}
printf("Sample_ConnectError_CB:\n");
printf(" ServiceType: %s\n", pServiceType);
printf(" Error: 0x%08x\n", a_error);
printf(" ClientSideError: %s\n", a_clientSideError == OpcUa_False ? "false" : "true");
pClientContext->State = State_Error;
return OpcUa_False;
}
{
OpcUa_Boolean bClientInitialized = OpcUa_False;
OpcUa_Boolean bComplete = OpcUa_False;
SampleClientContext clientContext;
SampleSubscription *pSampleSubscription = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_Client, "ClientMain");
OpcUa_DeclareErrorTraceModule(OpcUa_Module_Client);
clientContext.State = State_Idle;
OpcUa_GotoErrorIfBad(uStatus);
bClientInitialized = OpcUa_True;
pClientConfiguration->
PkiConfig.strPkiType = (
char*)OPCUA_PKI_TYPE_NONE;
OpcUa_MemSet(&sessionCallback, 0, sizeof(sessionCallback));
sessionCallback.pfConnectionStatusChanged_CB = Sample_ConnectionStatusChanged_CB;
sessionCallback.pfConnectError_CB = Sample_ConnectError_CB;
OpcUa_GotoErrorIfBad(uStatus);
OpcUa_GotoErrorIfBad(uStatus);
while (!bComplete)
{
switch (clientContext.State)
{
case State_Idle:
printf("UA Client: Connecting to %s ...\n", SERVER_ENDPOINT_URL);
OpcUa_GotoErrorIfBad(uStatus);
clientContext.State = State_Connect;
break;
case State_Connected:
pSampleSubscription = SampleSubscription_Create(pSession);
OpcUa_GotoErrorIfArgumentNull(pSampleSubscription);
uStatus = SampleSubscription_CreateSubscription(pSampleSubscription);
OpcUa_GotoErrorIfBad(uStatus);
clientContext.State = State_Subscription;
break;
case State_Subscription:
switch (pSampleSubscription->State)
{
case State_SampleSubscription_SubscriptionCreateDone:
uStatus = SampleSubscription_CreateMonitoredItem(pSampleSubscription);
OpcUa_GotoErrorIfBad(uStatus);
break;
case State_SampleSubscription_MonitoredItemCreateDone:
if (pSampleSubscription->uDataCount < 5)
break;
uStatus = SampleSubscription_DeleteMonitoredItem(pSampleSubscription);
OpcUa_GotoErrorIfBad(uStatus);
break;
case State_SampleSubscription_MonitoredItemDeleteDone:
uStatus = SampleSubscription_DeleteSubscription(pSampleSubscription);
OpcUa_GotoErrorIfBad(uStatus);
break;
case State_SampleSubscription_SubscriptionDeleteDone:
SampleSubscription_Delete(&pSampleSubscription);
pSampleSubscription = OpcUa_Null;
OpcUa_GotoErrorIfBad(uStatus);
clientContext.State = State_Disconnect;
break;
case State_SampleSubscription_Error:
printf("An error occured. Terminating now.\n");
bComplete = OpcUa_True;
break;
default:
break;
}
break;
case State_Disconnected:
printf("Sample successfully completed. Terminating now.\n");
bComplete = OpcUa_True;
break;
case State_Error:
printf("An error occured. Terminating now.\n");
bComplete = OpcUa_True;
break;
default:
break;
}
if (OpcUa_IsBad(uStatus))
{
printf("UaClient_DoCom failed (0x%08x)\n", uStatus);
bComplete = OpcUa_True;
}
}
SampleSubscription_Delete(&pSampleSubscription);
OpcUa_CertificateStoreConfiguration_Initialize(&pClientConfiguration->
PkiConfig);
printf("UA Client: Main stopped.\nPress Enter to close!\n");
getchar();
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if (bClientInitialized != OpcUa_False)
{
}
printf("UA Client: Main stopped due ERROR! (0x%08x)\nPress Enter to close!\n", uStatus);
getchar();
OpcUa_FinishErrorHandling;
}
int main()
{
int ret = EXIT_SUCCESS;
OpcUa_Handle hProxyStubPlatformLayer = OpcUa_Null;
OpcUa_ProxyStubConfiguration proxyStubConfiguration;
uStatus = InitializeOpcUaStack(&hProxyStubPlatformLayer, &proxyStubConfiguration);
if ( OpcUa_IsNotGood(uStatus) )
{
return EXIT_FAILURE;
}
uStatus = ClientMain();
if ( OpcUa_IsNotGood(uStatus) )
{
ret = EXIT_FAILURE;
}
uStatus = CleanupOpcUaStack(&hProxyStubPlatformLayer);
if ( OpcUa_IsNotGood(uStatus) )
{
ret = EXIT_FAILURE;
}
return ret;
}
#ifdef _WIN32_WCE
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPWSTR lpCmdLine,
int nShowCmd)
{
OpcUa_ReferenceParameter(hInstance);
OpcUa_ReferenceParameter(hPrevInstance);
OpcUa_ReferenceParameter(lpCmdLine);
OpcUa_ReferenceParameter(nShowCmd);
return main(0, OpcUa_Null);
}
#endif