115 lines
3.3 KiB
C
115 lines
3.3 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_getlastdatapoint.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_datapoints.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 <gwenhywfar/debug.h>
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#include <gwenhywfar/text.h>
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/* ------------------------------------------------------------------------------------------------
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* defines
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* ------------------------------------------------------------------------------------------------
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*/
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/* ------------------------------------------------------------------------------------------------
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* forward declarations
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* ------------------------------------------------------------------------------------------------
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*/
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/* ------------------------------------------------------------------------------------------------
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* implementations
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* ------------------------------------------------------------------------------------------------
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*/
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void AqHomeData_HandleGetLastDataPoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *recvdMsg)
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{
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GWEN_MSG *outMsg;
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int resultCode=0;
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if (AQH_IpcEndpoint_GetPermissions(ep) & AQH_IPCENDPOINT_PERMS_READDATA) {
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if (AQH_DataPointsDataIpcMsg_IsValid(recvdMsg)) {
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const char *valueName;
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valueName=AQH_DataPointsDataIpcMsg_GetValueName(recvdMsg);
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if (valueName) {
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const AQH_VALUE *value;
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value=AQH_Storage_GetValueByNameForSystem(aqh->storage, valueName);
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if (value) {
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uint64_t valueId;
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uint64_t timestamp=0;
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union {double f; uint64_t i;} u;
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int rv;
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valueId=AQH_Value_GetId(value);
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rv=AQH_Storage_GetLastDataPoint(aqh->storage, valueId, ×tamp, &(u.f));
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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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uint64_t array[2];
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array[0]=timestamp;
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array[1]=u.i;
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outMsg=AQH_DataPointsDataIpcMsg_new(AQH_MSGTYPE_IPC_DATA_GETLASTDATA_RSP, AQH_MSGDATA_DATAPOINTS_FLAGS_LASTMSG,
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valueId,
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AQH_Value_GetNameForSystem(value),
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AQH_Value_GetValueUnits(value),
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array, 1);
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GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
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return;
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}
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}
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else {
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DBG_INFO(NULL, "Value \"%s\" not found", valueName);
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resultCode=AQH_MSG_IPC_ERROR_NOTFOUND;
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}
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}
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else {
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DBG_INFO(NULL, "No value name in request");
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resultCode=AQH_MSG_IPC_ERROR_INVALID;
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}
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}
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else {
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DBG_INFO(NULL, "Invalid request message");
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resultCode=AQH_MSG_IPC_ERROR_INVALID;
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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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resultCode=AQH_MSG_IPC_ERROR_PERMS;
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}
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outMsg=AQH_ResultIpcMsg_new(AQH_MSGTYPE_IPC_DATA_RESULT, resultCode);
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GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
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}
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