QIODevice represents considreable overhead, even with just QBuffer, for
parsing simple things. Benchmarking showed it was spending 25% of the
parsing time inside one QIODevice function or another. So this commit
accomplishes two things:
1) it increases the buffer size from 9 bytes to up to 256, which should
reduce the number of calls into the QIODevice
2) if the source data is a QByteArray, then use it directly and bypass
the QIODevice, thus increasing performance considerably
Change-Id: I56b444f9d6274221a3b7fffd150c531c9d28e54b
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This is the counterpart of the previous commit.
[ChangeLog][QtCore] Added QCborStreamReader and QCborStreamWriter,
classes for low-level reading and writing of CBOR streams.
Change-Id: Ia0aac2f09e9245339951ffff13c72e4bffdf4a56
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Thiago Macieira