227 lines
7.7 KiB
C
227 lines
7.7 KiB
C
/****************************************************************************
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* This file is part of the project AqHome.
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* AqHome (c) by 2023 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "./s_getdatapoints.h"
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#include "./server_p.h"
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#include "aqhome/aqhome.h"
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#include "aqhome/ipc2/endpoint.h"
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#include "aqhome/msg/ipc/m_ipc.h"
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#include "aqhome/msg/ipc/m_ipc_result.h"
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#include "aqhome/msg/ipc/data/m_ipcd.h"
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#include "aqhome/msg/ipc/data/m_ipcd_getdata.h"
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#include "aqhome/msg/ipc/data/m_ipcd_multidata.h"
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#include "aqhome/msg/ipc/m_ipc_result.h"
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#include "aqhome/msg/ipc/m_ipc_tag16.h"
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#include <gwenhywfar/debug.h>
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/* ------------------------------------------------------------------------------------------------
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* defines
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* ------------------------------------------------------------------------------------------------
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*/
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#define AQHOMEDATA_HANDLEGETDATAPOINTS_MAXTABLEENTRIES 2048
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#define AQHOMEDATA_HANDLEGETDATAPOINTS_MAXDATAPOINTS 1024
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/* ------------------------------------------------------------------------------------------------
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* forward declarations
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* ------------------------------------------------------------------------------------------------
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*/
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static int _getAndSendDataPoints(AQH_STORAGE *storage, AQH_OBJECT *ep,
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const AQH_VALUE *value,
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uint64_t tsBegin, uint64_t tsEnd, uint64_t num, uint32_t refMsgId);
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static int _getAndSendDataPointsNoNum(AQH_STORAGE *storage, AQH_OBJECT *ep, const AQH_VALUE *value, uint64_t tsBegin, uint64_t tsEnd,
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uint32_t refMsgId);
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static int _getAndSendDataPointsWithNum(AQH_STORAGE *storage, AQH_OBJECT *ep, const AQH_VALUE *value, uint64_t num, uint32_t refMsgId);
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static void _sendDataPointsResponse(AQH_OBJECT *ep, const AQH_VALUE *value, const uint64_t *tablePtr,
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uint32_t refMsgId);
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static void _getAndSendLastDatapoint(AQH_STORAGE *storage, AQH_OBJECT *ep, const AQH_VALUE *value, uint32_t refMsgId);
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/* ------------------------------------------------------------------------------------------------
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* implementations
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* ------------------------------------------------------------------------------------------------
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*/
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void AqHomeDataServer_HandleGetDataPoints(AQH_OBJECT *o, AQH_OBJECT *ep, const AQH_MESSAGE *recvdMsg, const GWEN_TAG16_LIST *tagList)
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{
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AQHOME_SERVER *xo;
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xo=AqHomeDataServer_GetServerData(o);
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if (xo) {
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uint32_t refMsgId;
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refMsgId=AQH_IpcMessage_GetMsgId(recvdMsg);
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if (AQH_Endpoint_GetPermissions(ep) & AQH_ENDPOINT_PERMS_READDATA) {
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char *valueName;
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valueName=AQH_Tag16_GetTagDataAsNewString(tagList, AQH_MSGDATA_GETDATA_TAGS_NAME, NULL);
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if (valueName && *valueName) {
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AQH_VALUE *value;
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uint64_t tsBegin;
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uint64_t tsEnd;
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uint64_t numRequested;
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tsBegin=AQH_Tag16_GetTagDataAsUint64(tagList, AQH_MSGDATA_GETDATA_TAGS_BEGIN, 0);
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tsEnd=AQH_Tag16_GetTagDataAsUint64(tagList, AQH_MSGDATA_GETDATA_TAGS_END, 0);
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numRequested=AQH_Tag16_GetTagDataAsUint64(tagList, AQH_MSGDATA_GETDATA_TAGS_NUM, 0);
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value=AQH_Storage_GetValueByNameForSystem(xo->storage, valueName);
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if (value) {
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int resultCode;
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resultCode=_getAndSendDataPoints(xo->storage, ep, value, tsBegin, tsEnd, numRequested, refMsgId);
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AqHomeDataServer_SendResponseResultToEndpoint(ep, refMsgId, resultCode);
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}
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else {
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DBG_INFO(NULL, "Value \"%s\" does not exist", valueName);
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AqHomeDataServer_SendResponseResultToEndpoint(ep, refMsgId, AQH_MSGDATA_RESULT_ERROR_NOTFOUND);
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}
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free(valueName);
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}
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else {
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DBG_INFO(NULL, "Missing value name");
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AqHomeDataServer_SendResponseResultToEndpoint(ep, refMsgId, AQH_MSGDATA_RESULT_ERROR_BADDATA);
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}
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}
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else {
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DBG_ERROR(AQH_LOGDOMAIN, "No permissions to read data");
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AqHomeDataServer_SendResponseResultToEndpoint(ep, refMsgId, AQH_MSGDATA_RESULT_ERROR_PERMS);
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}
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}
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}
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int _getAndSendDataPoints(AQH_STORAGE *storage, AQH_OBJECT *ep,
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const AQH_VALUE *value,
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uint64_t tsBegin, uint64_t tsEnd, uint64_t num,
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uint32_t refMsgId)
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{
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if (num==0)
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return _getAndSendDataPointsNoNum(storage, ep, value, tsBegin, tsEnd, refMsgId);
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else if (num==1) {
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_getAndSendLastDatapoint(storage, ep, value, refMsgId);
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return AQH_MSGDATA_RESULT_SUCCESS;
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}
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else
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return _getAndSendDataPointsWithNum(storage, ep, value, num, refMsgId);
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}
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int _getAndSendDataPointsNoNum(AQH_STORAGE *storage, AQH_OBJECT *ep,
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const AQH_VALUE *value, uint64_t tsBegin, uint64_t tsEnd,
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uint32_t refMsgId)
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{
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uint64_t valueId;
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uint64_t *tablePtr;
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valueId=AQH_Value_GetId(value);
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tablePtr=AQH_Storage_GetDataPoints(storage, valueId, tsBegin, tsEnd, AQHOMEDATA_HANDLEGETDATAPOINTS_MAXTABLEENTRIES);
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if (tablePtr) {
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_sendDataPointsResponse(ep, value, tablePtr, refMsgId);
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free(tablePtr);
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return AQH_MSGDATA_RESULT_SUCCESS;
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}
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else {
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DBG_INFO(NULL, "No matching datapoints for value \"%s\"", AQH_Value_GetNameForSystem(value));
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return AQH_MSGDATA_RESULT_ERROR_NODATA;
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}
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}
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int _getAndSendDataPointsWithNum(AQH_STORAGE *storage, AQH_OBJECT *ep,
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const AQH_VALUE *value, uint64_t num,
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uint32_t refMsgId)
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{
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uint64_t valueId;
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uint64_t *tablePtr;
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if (num>AQHOMEDATA_HANDLEGETDATAPOINTS_MAXDATAPOINTS)
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num=AQHOMEDATA_HANDLEGETDATAPOINTS_MAXDATAPOINTS;
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valueId=AQH_Value_GetId(value);
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tablePtr=AQH_Storage_GetLastNDataPoints(storage, valueId, num);
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if (tablePtr) {
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_sendDataPointsResponse(ep, value, tablePtr, refMsgId);
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free(tablePtr);
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return AQH_MSGDATA_RESULT_SUCCESS;
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}
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else {
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DBG_INFO(NULL, "No matching datapoints for value \"%s\"", AQH_Value_GetNameForSystem(value));
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return AQH_MSGDATA_RESULT_ERROR_NODATA;
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}
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}
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void _sendDataPointsResponse(AQH_OBJECT *ep,
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const AQH_VALUE *value, const uint64_t *tablePtr,
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uint32_t refMsgId)
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{
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int numTableEntries;
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int numDataPoints;
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AQH_MESSAGE *outMsg;
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numTableEntries=(int)(tablePtr[0]);
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numDataPoints=numTableEntries/2;
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outMsg=AQH_IpcdMessageMultiData_new(AQH_MSGTYPE_IPC_DATA_GETDATA_RSP,
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AQH_Endpoint_GetNextMessageId(ep), refMsgId,
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value, &(tablePtr[1]), numDataPoints);
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AQH_Endpoint_AddMsgOut(ep, outMsg);
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}
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void _getAndSendLastDatapoint(AQH_STORAGE *storage, AQH_OBJECT *ep,
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const AQH_VALUE *value, uint32_t refMsgId)
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{
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int rv;
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uint64_t timestamp=0;
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double data=0.0;
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rv=AQH_Storage_GetLastDataPoint(storage, AQH_Value_GetId(value), ×tamp, &data);
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if (rv<0) {
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int resultCode;
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switch(rv) {
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case GWEN_ERROR_INVALID: resultCode=AQH_MSGDATA_RESULT_ERROR_INVALID; break;
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case GWEN_ERROR_NO_DATA: resultCode=AQH_MSGDATA_RESULT_ERROR_NODATA; break;
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default: resultCode=AQH_MSGDATA_RESULT_ERROR_GENERIC; break;
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}
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AqHomeDataServer_SendResponseResultToEndpoint(ep, refMsgId, resultCode);
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}
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else {
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AQH_MESSAGE *outMsg;
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outMsg=AQH_IpcdMessageMultiData_newForOne(AQH_MSGTYPE_IPC_DATA_GETDATA_RSP,
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AQH_Endpoint_GetNextMessageId(ep), refMsgId,
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value, timestamp, data);
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AQH_Endpoint_AddMsgOut(ep, outMsg);
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}
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}
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