Files
aqhomecontrol/apps/aqhome-data/c_getlastdatapoint.c

108 lines
3.5 KiB
C

/****************************************************************************
* This file is part of the project AqHome.
* AqHome (c) by 2023 Martin Preuss, all rights reserved.
*
* The license for this file can be found in the file COPYING which you
* should have received along with this file.
****************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "./c_getlastdatapoint.h"
#include "./aqhome_data_p.h"
#include "aqhome/ipc/data/ipc_data.h"
#include "aqhome/ipc/data/msg_data_getdata.h"
#include "aqhome/ipc/data/msg_data_multidata.h"
#include "aqhome/ipc/endpoint_ipc.h"
#include "aqhome/ipc/msg_ipc_result.h"
#include "aqhome/ipc/msg_ipc_tag16.h"
#include <gwenhywfar/debug.h>
#include <gwenhywfar/text.h>
/* ------------------------------------------------------------------------------------------------
* defines
* ------------------------------------------------------------------------------------------------
*/
/* ------------------------------------------------------------------------------------------------
* forward declarations
* ------------------------------------------------------------------------------------------------
*/
/* ------------------------------------------------------------------------------------------------
* implementations
* ------------------------------------------------------------------------------------------------
*/
void AqHomeData_HandleGetLastDataPoint(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, GWEN_MSG *recvdMsg)
{
GWEN_MSG *outMsg;
int resultCode=AQH_MSG_IPC_SUCCESS;
if (AQH_IpcEndpoint_GetPermissions(ep) & AQH_IPCENDPOINT_PERMS_READDATA) {
char *valueName;
AQH_GetDataDataIpcMsg_Parse(recvdMsg, 0);
valueName=AQH_Tag16IpcMsg_GetTagDataAsNewString(recvdMsg, AQH_MSGDATA_GETDATA_TAGS_NAME, NULL);
if (valueName && *valueName) {
const AQH_VALUE *storedValue;
storedValue=AQH_Storage_GetValueByNameForSystem(aqh->storage, valueName);
if (storedValue) {
uint64_t timestamp=0;
double data=0.0;
int rv;
rv=AQH_Storage_GetLastDataPoint(aqh->storage, AQH_Value_GetId(storedValue), &timestamp, &data);
if (rv<0) {
switch(rv) {
case GWEN_ERROR_INVALID: resultCode=AQH_MSG_IPC_ERROR_INVALID; break;
case GWEN_ERROR_NO_DATA: resultCode=AQH_MSG_IPC_ERROR_NODATA; break;
default: resultCode=AQH_MSG_IPC_ERROR_GENERIC; break;
}
}
else {
outMsg=AQH_MultiDataDataIpcMsg_newForOne(AQH_MSGTYPE_IPC_DATA_GETLASTDATA_RSP,
GWEN_MsgEndpoint_GetNextMessageId(ep), GWEN_IpcMsg_GetMsgId(recvdMsg),
storedValue, timestamp, data);
GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
free(valueName);
return;
}
}
else {
DBG_INFO(NULL, "Value \"%s\" not found", valueName);
resultCode=AQH_MSG_IPC_ERROR_NOTFOUND;
}
free(valueName);
}
else {
DBG_INFO(NULL, "No name for value");
resultCode=AQH_MSG_IPC_ERROR_NOTFOUND;
}
}
else {
DBG_ERROR(AQH_LOGDOMAIN, "No permissions to read data");
resultCode=AQH_MSG_IPC_ERROR_PERMS;
}
outMsg=AQH_ResultIpcMsg_new(AQH_MSGTYPE_IPC_DATA_RESULT,
GWEN_MsgEndpoint_GetNextMessageId(ep), GWEN_IpcMsg_GetMsgId(recvdMsg),
resultCode);
GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
}