TrendFbTrendStorageWriterReader.Read (METH)ΒΆ
METHOD Read : STO.ERROR
Reads data from the trend storage and passes it to the ITraceMgrPacketReaderClient instance. Returns the error code of the underlying CAA storage database layer.
- InOut:
Scope
Name
Type
Comment
Return
Read
STO.ERROR
Input
sPacketName
STRING
The name of the packet, that has been stored in the trend storage
liTimestampFrom
LINT
The absolute timestamp of the 1st sample
liTimestampTo
LINT
The absolute timestamp of the last sample
liAbsPacketStartTime
LINT
The absolute start time of the 1st trace mgr packet, only if this parameter contains a value != 0. In this case both timestamp parameters are relative timestamps. If this parameter is 0 both timestamp parameters are absolute timestamps.
xCloseTableAndStorage
BOOL
A flag indicating, whether the database and the table have to be kept open after reading the data (FALSE) or have to be closed (TRUE). The target visualization can leave the table and the storage open to have better performance.