212 lines
7.4 KiB
C
212 lines
7.4 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 "./c_getdatapoints.h"
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#include "./aqhome_data_p.h"
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#include "aqhome/ipc/data/ipc_data.h"
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#include "aqhome/ipc/data/msg_data_multidata.h"
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#include "aqhome/ipc/data/msg_data_getdata.h"
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#include "aqhome/ipc/endpoint_ipc.h"
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#include "aqhome/ipc/msg_ipc_result.h"
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#include "aqhome/ipc/msg_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(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *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(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *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(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const AQH_VALUE *value, uint64_t num, uint32_t refMsgId);
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static void _sendDataPointsResponse(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const AQH_VALUE *value, const uint64_t *tablePtr,
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uint32_t refMsgId);
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static void _getAndSendLastDatapoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *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 AqHomeData_HandleGetDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, GWEN_MSG *recvdMsg)
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{
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GWEN_MSG *outMsg;
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int resultCode=AQH_MSG_IPC_SUCCESS;
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if (AQH_IpcEndpoint_GetPermissions(ep) & AQH_IPCENDPOINT_PERMS_READDATA) {
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AQH_VALUE *value;
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char *valueName;
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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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AQH_GetDataDataIpcMsg_Parse(recvdMsg, 0);
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valueName=AQH_Tag16IpcMsg_GetTagDataAsNewString(recvdMsg, AQH_MSGDATA_GETDATA_TAGS_NAME, NULL);
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tsBegin=AQH_Tag16IpcMsg_GetTagDataAsUint64(recvdMsg, AQH_MSGDATA_GETDATA_TAGS_BEGIN, 0);
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tsEnd=AQH_Tag16IpcMsg_GetTagDataAsUint64(recvdMsg, AQH_MSGDATA_GETDATA_TAGS_END, 0);
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numRequested=AQH_Tag16IpcMsg_GetTagDataAsUint64(recvdMsg, AQH_MSGDATA_GETDATA_TAGS_NUM, 0);
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value=AQH_Storage_GetValueByNameForSystem(aqh->storage, valueName);
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if (value) {
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resultCode=_getAndSendDataPoints(aqh, ep, value, tsBegin, tsEnd, numRequested, GWEN_IpcMsg_GetMsgId(recvdMsg));
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if (resultCode==AQH_MSG_IPC_SUCCESS)
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return;
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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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resultCode=AQH_MSG_IPC_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_ERROR(AQH_LOGDOMAIN, "No permissions to read data");
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resultCode=AQH_MSG_IPC_ERROR_PERMS;
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}
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outMsg=AQH_ResultIpcMsg_new(AQH_MSGTYPE_IPC_DATA_RESULT,
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GWEN_MsgEndpoint_GetNextMessageId(ep), GWEN_IpcMsg_GetMsgId(recvdMsg),
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resultCode);
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GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
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}
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int _getAndSendDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const AQH_VALUE *value, 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(aqh, ep, value, tsBegin, tsEnd, refMsgId);
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else if (num==1) {
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_getAndSendLastDatapoint(aqh, ep, value, refMsgId);
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return AQH_MSG_IPC_SUCCESS;
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}
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else
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return _getAndSendDataPointsWithNum(aqh, ep, value, num, refMsgId);
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}
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int _getAndSendDataPointsNoNum(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, 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(aqh->storage, valueId, tsBegin, tsEnd, AQHOMEDATA_HANDLEGETDATAPOINTS_MAXTABLEENTRIES);
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if (tablePtr) {
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_sendDataPointsResponse(aqh, ep, value, tablePtr, refMsgId);
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free(tablePtr);
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return AQH_MSG_IPC_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_MSG_IPC_ERROR_NODATA;
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}
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}
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int _getAndSendDataPointsWithNum(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const AQH_VALUE *value, uint64_t num, 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(aqh->storage, valueId, num);
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if (tablePtr) {
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_sendDataPointsResponse(aqh, ep, value, tablePtr, refMsgId);
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free(tablePtr);
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return AQH_MSG_IPC_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_MSG_IPC_ERROR_NODATA;
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}
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}
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void _sendDataPointsResponse(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, 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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GWEN_MSG *outMsg;
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numTableEntries=(int)(tablePtr[0]);
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numDataPoints=numTableEntries/2;
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outMsg=AQH_MultiDataDataIpcMsg_new(AQH_MSGTYPE_IPC_DATA_GETDATA_RSP,
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GWEN_MsgEndpoint_GetNextMessageId(ep), refMsgId,
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value, &(tablePtr[1]), numDataPoints);
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GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
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}
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void _getAndSendLastDatapoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const AQH_VALUE *value, uint32_t refMsgId)
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{
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GWEN_MSG *outMsg;
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int resultCode=AQH_MSG_IPC_SUCCESS;
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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(aqh->storage, AQH_Value_GetId(value), ×tamp, &data);
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if (rv<0) {
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switch(rv) {
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case GWEN_ERROR_INVALID: resultCode=AQH_MSG_IPC_ERROR_INVALID; break;
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case GWEN_ERROR_NO_DATA: resultCode=AQH_MSG_IPC_ERROR_NODATA; break;
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default: resultCode=AQH_MSG_IPC_ERROR_GENERIC; break;
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}
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}
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else {
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outMsg=AQH_MultiDataDataIpcMsg_newForOne(AQH_MSGTYPE_IPC_DATA_GETDATA_RSP,
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GWEN_MsgEndpoint_GetNextMessageId(ep), refMsgId,
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value, timestamp, data);
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GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
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return;
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}
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outMsg=AQH_ResultIpcMsg_new(AQH_MSGTYPE_IPC_DATA_RESULT,
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GWEN_MsgEndpoint_GetNextMessageId(ep), refMsgId,
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resultCode);
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GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
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}
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