C++ (Cpp) CheckIpcRequests Beispiele

Beispiel #1

Datei: mainstate.c Projekt: Ikem/app-template

/*********************************************************************//*!
 * @brief Checks for IPC events, schedules their handling and
 * acknowledges any executed ones.
 * 
 * @param pMainState Initalized HSM main state variable.
 * @return 0 on success or an appropriate error code.
 *//*********************************************************************/
static OSC_ERR HandleIpcRequests(MainState *pMainState)
{
	OSC_ERR err;
	uint32 paramId;
	
	err = CheckIpcRequests(&paramId);
	if (err == SUCCESS)
	{
		/* We have a request. See to it that it is handled
		 * depending on the state we're in. */
		switch(paramId)
		{
		case GET_APP_STATE:
			/* Request for the current state of the application. */
			ThrowEvent(pMainState, IPC_GET_APP_STATE_EVT);
			break;
		case GET_COLOR_IMG:
			/* Request for the live image. */
			ThrowEvent(pMainState, IPC_GET_COLOR_IMG_EVT);
			break;
		case GET_RAW_IMG:
			/* Request for the live image. */
			ThrowEvent(pMainState, IPC_GET_RAW_IMG_EVT);
			break;
		case SET_CAPTURE_MODE:
			/* Set the debayering option. */
			ThrowEvent(pMainState, IPC_SET_CAPTURE_MODE_EVT);
			break;
		default:
			OscLog(ERROR, "%s: Unkown IPC parameter ID (%d)!\n", __func__, paramId);
			data.ipc.enReqState = REQ_STATE_NACK_PENDING;
			break;
		}
	}
	else if (err == -ENO_MSG_AVAIL)
	{
		/* No new message available => do nothing. */
	}
	else
	{
		/* Error.*/
		OscLog(ERROR, "%s: IPC request error! (%d)\n", __func__, err);
		return err;
	}
	
	/* Try to acknowledge the new or any old unacknowledged
	 * requests. It may take several tries to succeed.*/
	err = AckIpcRequests();
	if (err != SUCCESS)
	{
		OscLog(ERROR, "%s: IPC acknowledge error! (%d)\n", __func__, err);
	}
	return err;
}

Beispiel #2

Datei: mainstate.c Projekt: tpluess/ebv

/*********************************************************************//*!
 * @brief Checks for IPC events, schedules their handling and
 * acknowledges any executed ones.
 *
 * @param pMainState Initalized HSM main state variable.
 * @return 0 on success or an appropriate error code.
 *//*********************************************************************/
static OSC_ERR HandleIpcRequests(MainState *pMainState)
{
	OSC_ERR err;
	uint32 paramId;
	struct IPC_DATA *pIpc = &data.ipc;
	struct OSC_IPC_REQUEST *pReq = &pIpc->req;

	err = CheckIpcRequests(&paramId);
	if (err == SUCCESS)
	{
		/* We have a request. See to it that it is handled
		 * depending on the state we're in. */
		switch(paramId)
		{
		case GET_APP_STATE:
			/* Request for the current state of the application. */
			ThrowEvent(pMainState, IPC_GET_APP_STATE_EVT);
			break;
		case GET_NEW_IMG:
			/* Request for the live image. */
			ThrowEvent(pMainState, IPC_GET_NEW_IMG_EVT);
			break;
		case SET_IMAGE_TYPE:
		{
			/* Set the new image type. */
			unsigned int ImgTyp = *((unsigned int*)data.ipc.req.pAddr);
			if(MAX_NUM_IMG <= ImgTyp)
			{
				OscLog(ERROR, "%obtained unknown image type: %u! Will leave unchanged\n", data.ipc.state.nImageType);
			}
			else
			{
				data.ipc.state.nImageType = ImgTyp;
				ThrowEvent(pMainState, IPC_SET_IMAGE_TYPE_EVT);
			}

			break;
		}
		case SET_EXPOSURE_TIME:
			// a new exposure time was given
			if(data.ipc.state.nExposureTime != *((int*)pReq->pAddr))
			{
				data.nExposureTimeChanged = true;
				data.ipc.state.nExposureTime = *((int*)pReq->pAddr);
			}
			data.ipc.enReqState = REQ_STATE_ACK_PENDING;//we return immediately
			break;
		case SET_THRESHOLD:
			// a new exposure time was given
			if(data.ipc.state.nThreshold != *((int*)pReq->pAddr))
			{
				data.ipc.state.nThreshold = *((int*)pReq->pAddr);
			}
			data.ipc.enReqState = REQ_STATE_ACK_PENDING;//we return immediately
			break;
		default:
			OscLog(ERROR, "%s: Unkown IPC parameter ID (%d)!\n", __func__, paramId);
			data.ipc.enReqState = REQ_STATE_NACK_PENDING;
			break;
		}
	}
	else if (err == -ENO_MSG_AVAIL)
	{
		/* No new message available => do nothing. */
	}
	else
	{
		/* Error.*/
		OscLog(ERROR, "%s: IPC request error! (%d)\n", __func__, err);
		return err;
	}

	/* Try to acknowledge the new or any old unacknowledged
	 * requests. It may take several tries to succeed.*/
	err = AckIpcRequests();
	if (err != SUCCESS)
	{
		OscLog(ERROR, "%s: IPC acknowledge error! (%d)\n", __func__, err);
	}
	return err;
}