223 lines
6.3 KiB
C
223 lines
6.3 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 <aqhome/ipc/data/msg_data_datapoints.h>
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#include <aqhome/ipc/data/ipc_data.h>
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#include <gwenhywfar/msg.h>
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#include <gwenhywfar/buffer.h>
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#include <gwenhywfar/debug.h>
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#include <gwenhywfar/msg_ipc.h>
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#include <string.h>
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#define AQH_MSGDATA_DATAPOINTS_OFFS_FLAGS 0 /* 4 bytes */
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#define AQH_MSGDATA_DATAPOINTS_OFFS_NUMVALUES 4 /* 4 bytes */
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#define AQH_MSGDATA_DATAPOINTS_OFFS_VALUEID 8 /* 8 byte */
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#define AQH_MSGDATA_DATAPOINTS_OFFS_VALUENAME 16 /* 104 byte */
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# define AQH_MSGDATA_DATAPOINTS_SIZE_VALUENAME 104
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#define AQH_MSGDATA_DATAPOINTS_OFFS_VALUEUNITS 120 /* 16 byte */
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# define AQH_MSGDATA_DATAPOINTS_SIZE_VALUEUNITS 16
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#define AQH_MSGDATA_DATAPOINTS_OFFS_VALUES 136
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#define AQH_MSGDATA_DATAPOINTS_MINSIZE (GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUES)
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static void _writeQword(uint64_t i64, uint8_t *ptr);
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GWEN_MSG *AQH_DataPointsDataIpcMsg_new(uint16_t code, uint32_t flags,
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uint64_t valueId, const char *valueName, const char *units,
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const uint64_t *i64Ptr, int numOfDataPoints)
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{
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GWEN_MSG *msg;
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uint8_t *ptr;
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int payloadSize;
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int i;
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payloadSize=AQH_MSGDATA_DATAPOINTS_OFFS_VALUES+(numOfDataPoints*16);
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msg=GWEN_IpcMsg_new(AQH_IPC_PROTOCOL_DATA_ID, AQH_IPC_PROTOCOL_DATA_VERSION, code, payloadSize, NULL);
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ptr=GWEN_Msg_GetBuffer(msg)+GWEN_MSGIPC_OFFS_PAYLOAD;
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*(ptr++)=flags & 0xff;
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*(ptr++)=(flags>>8) & 0xff;
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*(ptr++)=(flags>>16) & 0xff;
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*(ptr++)=(flags>>24) & 0xff;
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*(ptr++)=numOfDataPoints & 0xff;
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*(ptr++)=(numOfDataPoints>>8) & 0xff;
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*(ptr++)=(numOfDataPoints>>16) & 0xff;
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*(ptr++)=(numOfDataPoints>>24) & 0xff;
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_writeQword(valueId, ptr);
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ptr+=8;
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if (valueName) {
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strncpy((char*) ptr, valueName, AQH_MSGDATA_DATAPOINTS_SIZE_VALUENAME-1);
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ptr[AQH_MSGDATA_DATAPOINTS_SIZE_VALUENAME-1]=0;
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}
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else
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memset(ptr, 0, AQH_MSGDATA_DATAPOINTS_SIZE_VALUENAME);
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ptr+=AQH_MSGDATA_DATAPOINTS_SIZE_VALUENAME;
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if (units) {
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strncpy((char*) ptr, units, AQH_MSGDATA_DATAPOINTS_SIZE_VALUEUNITS-1);
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ptr[AQH_MSGDATA_DATAPOINTS_SIZE_VALUEUNITS-1]=0;
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}
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else
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memset(ptr, 0, AQH_MSGDATA_DATAPOINTS_SIZE_VALUEUNITS);
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ptr+=AQH_MSGDATA_DATAPOINTS_SIZE_VALUEUNITS;
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for (i=0; i<numOfDataPoints; i++) {
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_writeQword(*i64Ptr, ptr);
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i64Ptr++;
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ptr+=8;
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_writeQword(*i64Ptr, ptr);
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i64Ptr++;
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ptr+=8;
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}
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return msg;
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}
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void _writeQword(uint64_t i64, uint8_t *ptr)
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{
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*(ptr++)=i64 & 0xff;
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*(ptr++)=(i64>>8) & 0xff;
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*(ptr++)=(i64>>16) & 0xff;
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*(ptr++)=(i64>>24) & 0xff;
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*(ptr++)=(i64>>32) & 0xff;
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*(ptr++)=(i64>>40) & 0xff;
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*(ptr++)=(i64>>48) & 0xff;
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*(ptr++)=(i64>>56) & 0xff;
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}
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uint32_t AQH_DataPointsDataIpcMsg_GetFlags(const GWEN_MSG *msg)
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{
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return GWEN_Msg_GetUint32At(msg, GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_FLAGS, 0);
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}
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uint32_t AQH_DataPointsDataIpcMsg_GetNumValues(const GWEN_MSG *msg)
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{
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return GWEN_Msg_GetUint32At(msg, GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_NUMVALUES, 0);
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}
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uint64_t AQH_DataPointsDataIpcMsg_GetValueId(const GWEN_MSG *msg)
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{
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return GWEN_Msg_GetUint64At(msg, GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUEID, 0);
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}
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const char *AQH_DataPointsDataIpcMsg_GetValueName(const GWEN_MSG *msg)
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{
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if (GWEN_Msg_GetBytesInBuffer(msg)>=AQH_MSGDATA_DATAPOINTS_MINSIZE)
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return (const char*) (GWEN_Msg_GetConstBuffer(msg)+GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUENAME);
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return NULL;
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}
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const char *AQH_DataPointsDataIpcMsg_GetUnits(const GWEN_MSG *msg)
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{
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if (GWEN_Msg_GetBytesInBuffer(msg)>=AQH_MSGDATA_DATAPOINTS_MINSIZE)
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return (const char*) (GWEN_Msg_GetConstBuffer(msg)+GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUEUNITS);
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return NULL;
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}
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const uint64_t *AQH_DataPointsDataIpcMsg_GetDataPoints(const GWEN_MSG *msg)
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{
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if (GWEN_Msg_GetBytesInBuffer(msg)>=AQH_MSGDATA_DATAPOINTS_MINSIZE)
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return (const uint64_t*) (GWEN_Msg_GetConstBuffer(msg)+GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUES);
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return NULL;
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}
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int AQH_DataPointsDataIpcMsg_IsValid(const GWEN_MSG *msg)
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{
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int msgLen;
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int numValues;
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const uint8_t *ptr;
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msgLen=GWEN_Msg_GetBytesInBuffer(msg);
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if (msgLen<AQH_MSGDATA_DATAPOINTS_MINSIZE) {
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DBG_ERROR(AQH_LOGDOMAIN, "Message too small (%d<%d)", GWEN_Msg_GetBytesInBuffer(msg), AQH_MSGDATA_DATAPOINTS_MINSIZE);
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return 0;
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}
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numValues=(int)AQH_DataPointsDataIpcMsg_GetNumValues(msg);
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if (msgLen<(numValues*16)+AQH_MSGDATA_DATAPOINTS_OFFS_VALUES+GWEN_MSGIPC_OFFS_PAYLOAD) {
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DBG_ERROR(AQH_LOGDOMAIN, "Message too small to contain %d values", numValues);
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return 0;
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}
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ptr=GWEN_Msg_GetConstBuffer(msg);
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if (ptr[GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUENAME+AQH_MSGDATA_DATAPOINTS_SIZE_VALUENAME-1]!=0) {
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DBG_ERROR(AQH_LOGDOMAIN, "Name string for value is not null-terminated");
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return 0;
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}
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if (ptr[GWEN_MSGIPC_OFFS_PAYLOAD+AQH_MSGDATA_DATAPOINTS_OFFS_VALUEUNITS+AQH_MSGDATA_DATAPOINTS_SIZE_VALUEUNITS-1]!=0) {
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DBG_ERROR(AQH_LOGDOMAIN, "Units string for value is not null-terminated");
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return 0;
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}
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return 1;
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}
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void AQH_DataPointsDataIpcMsg_DumpToBuffer(const GWEN_MSG *msg, GWEN_BUFFER *dbuf, const char *sText)
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{
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if (GWEN_Msg_GetBytesInBuffer(msg)>=AQH_MSGDATA_DATAPOINTS_MINSIZE) {
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const char *valueName;
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valueName=AQH_DataPointsDataIpcMsg_GetValueName(msg);
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GWEN_Buffer_AppendArgs(dbuf,
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"DATAPOINTS (code=%d, proto=%d, proto version=%d, flags=0x%08x, valueName=%s, values=%d)\n",
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GWEN_IpcMsg_GetCode(msg),
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GWEN_IpcMsg_GetProtoId(msg),
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GWEN_IpcMsg_GetProtoVersion(msg),
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(unsigned int)AQH_DataPointsDataIpcMsg_GetFlags(msg),
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valueName?valueName:"<no name>",
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AQH_DataPointsDataIpcMsg_GetNumValues(msg));
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}
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}
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