/*============================================================================
* Start a created thread.
*===========================================================================*/
OpcUa_StatusCode OpcUa_Thread_Start(OpcUa_Thread a_Thread)
{
OpcUa_StatusCode uStatus = OpcUa_Good;
OpcUa_ThreadInternal* pThread = OpcUa_Null;
OpcUa_Int32 intThreadId = 0;
OpcUa_ReturnErrorIfArgumentNull(a_Thread);
pThread = (OpcUa_ThreadInternal*)a_Thread;
OPCUA_P_MUTEX_LOCK(pThread->Mutex);
if(pThread->IsRunning != OpcUa_False)
{
OPCUA_P_MUTEX_UNLOCK(pThread->Mutex);
return OpcUa_Good;
}
/* set semaphore to waitable */
uStatus = OPCUA_P_SEMAPHORE_WAIT((pThread->ShutdownEvent));
OpcUa_GotoErrorIfBad(uStatus);
pThread->IsRunning = OpcUa_True;
intThreadId = OpcUa_P_Thread_Start( pThread->RawThread,
InternalThreadMain,
(OpcUa_Void*)pThread);
if(intThreadId != 0)
{
pThread->IsRunning = OpcUa_False;
OPCUA_P_MUTEX_UNLOCK(pThread->Mutex);
uStatus = OpcUa_BadInternalError;
OpcUa_Trace(OPCUA_TRACE_LEVEL_ERROR, "OpcUa_Thread_Start: Error during thread creation!\n");
goto Error;
}
OPCUA_P_MUTEX_UNLOCK(pThread->Mutex);
return OpcUa_Good;
Error:
return uStatus;
}
/*============================================================================
* Create a new socket manager or initialize the global one (OpcUa_Null first).
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_SocketManager_Create(OpcUa_SocketManager* a_pSocketManager,
OpcUa_UInt32 a_nSockets,
OpcUa_UInt32 a_nFlags)
{
OpcUa_InternalSocketManager* pInternalSocketManager = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_Socket, "SocketManager_Create");
if(a_nFlags & 0xFFFFFFF8)
{
return OpcUa_BadInvalidArgument;
}
if(a_nSockets > OPCUA_P_SOCKETMANAGER_NUMBEROFSOCKETS)
{
return OpcUa_BadInvalidArgument;
}
/* set number of socket to maximum */
if(a_nSockets == 0)
{
a_nSockets = OPCUA_P_SOCKETMANAGER_NUMBEROFSOCKETS;
}
a_nSockets += 1; /* add signal socket to requested sockets */
#if !OPCUA_MULTITHREADED
if(a_pSocketManager == OpcUa_Null && OpcUa_Socket_g_SocketManager == OpcUa_Null)
{
a_pSocketManager = &OpcUa_Socket_g_SocketManager;
}
#endif
if(a_pSocketManager == OpcUa_Null)
{
return OpcUa_BadInvalidArgument;
}
*a_pSocketManager = OpcUa_SocketManager_Alloc();
OpcUa_GotoErrorIfAllocFailed(*a_pSocketManager);
pInternalSocketManager = (OpcUa_InternalSocketManager*)*a_pSocketManager;
OpcUa_SocketManager_Initialize(pInternalSocketManager);
#if OPCUA_USE_SYNCHRONISATION
uStatus = OpcUa_P_Mutex_Create(&pInternalSocketManager->pMutex);
OpcUa_GotoErrorIfBad(uStatus);
#endif /* OPCUA_USE_SYNCHRONISATION */
/* preallocate socket structures for all possible sockets (maxsockets) */
uStatus = OpcUa_SocketManager_CreateSockets((OpcUa_SocketManager)pInternalSocketManager, a_nSockets);
OpcUa_GotoErrorIfBad(uStatus);
pInternalSocketManager->uintLastExternalEvent = OPCUA_SOCKET_NO_EVENT;
/* set the behaviour flags */
if((a_nFlags & OPCUA_SOCKET_SPAWN_THREAD_ON_ACCEPT) != OPCUA_SOCKET_NO_FLAG)
{
pInternalSocketManager->Flags.bSpawnThreadOnAccept = OpcUa_True;
}
if((a_nFlags & OPCUA_SOCKET_REJECT_ON_NO_THREAD) != OPCUA_SOCKET_NO_FLAG)
{
pInternalSocketManager->Flags.bRejectOnThreadFail = OpcUa_True;
}
if((a_nFlags & OPCUA_SOCKET_DONT_CLOSE_ON_EXCEPT) != OPCUA_SOCKET_NO_FLAG)
{
pInternalSocketManager->Flags.bDontCloseOnExcept = OpcUa_True;
}
uStatus = OpcUa_P_SocketManager_NewSignalSocket(pInternalSocketManager);
OpcUa_GotoErrorIfBad(uStatus);
#if OPCUA_MULTITHREADED
if (pInternalSocketManager->Flags.bSpawnThreadOnAccept)
{
/* create a semaphore with no free resources for which a host can wait to be signalled. */
uStatus = OpcUa_P_Semaphore_Create(&pInternalSocketManager->pStartupSemaphore, 0, 1);
OpcUa_GotoErrorIfBad(uStatus);
pInternalSocketManager->pSocketManagers = OpcUa_P_Memory_Alloc(sizeof(OpcUa_InternalSocketManager*) * OPCUA_SOCKET_MAXMANAGERS);
OpcUa_GotoErrorIfAllocFailed(pInternalSocketManager->pSocketManagers);
OpcUa_MemSet(pInternalSocketManager->pSocketManagers, 0, sizeof(OpcUa_InternalSocketManager*) * OPCUA_SOCKET_MAXMANAGERS);
}
/* if multithreaded, create and start the server thread if the list is not the global list. */
uStatus = OpcUa_P_Thread_Create(&pInternalSocketManager->pThread); /* make raw thread */
OpcUa_GotoErrorIfBad(uStatus);
uStatus = OpcUa_P_Thread_Start( pInternalSocketManager->pThread,
OpcUa_P_SocketManager_ServerLoopThread,
(OpcUa_Void*)pInternalSocketManager);
OpcUa_GotoErrorIfBad(uStatus);
#endif /* OPCUA_MULTITHREADED */
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pInternalSocketManager != OpcUa_Null)
{
#if OPCUA_MULTITHREADED
if(pInternalSocketManager->pThread != OpcUa_Null)
{
OpcUa_P_Thread_Delete(&pInternalSocketManager->pThread);
}
if(pInternalSocketManager->pSocketManagers != OpcUa_Null)
{
OpcUa_P_Memory_Free(pInternalSocketManager->pSocketManagers);
}
if(pInternalSocketManager->pStartupSemaphore != OpcUa_Null)
{
OpcUa_P_Semaphore_Delete(&pInternalSocketManager->pStartupSemaphore);
}
#endif /* OPCUA_MULTITHREADED */
if(pInternalSocketManager->pCookie != (OpcUa_RawSocket)OPCUA_P_SOCKET_INVALID)
{
OpcUa_P_RawSocket_Close(pInternalSocketManager->pCookie);
}
if(pInternalSocketManager->pSockets != OpcUa_Null)
{
if(pInternalSocketManager->pSockets[0].rawSocket != (OpcUa_RawSocket)OPCUA_P_SOCKET_INVALID)
{
OpcUa_P_RawSocket_Close(pInternalSocketManager->pSockets[0].rawSocket);
}
OpcUa_P_Memory_Free(pInternalSocketManager->pSockets);
}
#if OPCUA_USE_SYNCHRONISATION
if(pInternalSocketManager->pMutex != OpcUa_Null)
{
OpcUa_P_Mutex_Delete(&pInternalSocketManager->pMutex);
}
#endif /* OPCUA_USE_SYNCHRONISATION */
OpcUa_P_Memory_Free(pInternalSocketManager);
}
*a_pSocketManager = OpcUa_Null;
OpcUa_FinishErrorHandling;
}