On Tue, 24 Jun 2025 19:00:42 GMT, Brian Burkhalter <b...@openjdk.org> wrote:
>>> My suggestion is to call `new StringBuilder(0)` >> >> So changed in 8ccfd54. > >> When a partial line is left in the transfer buffer, copy it to the beginning >> of the buffer and read more characters for the remaining size of the buffer. > > The "transfer buffer" is the character array `cb`, right? > >> You might still need a fallback for really long lines (> transfer buffer >> size), but that might be more easily handled by reallocating the transfer >> buffer to make it larger. > > The size of the array `cb` is not intended to be commensurate with line > length, but rather to allow reading multiple lines thereby cutting down the > nunber of reads. Right, but some line might be longer than the transfer buffer size, so some mechanism is needed to assemble a longer line. Whether its a separate buffer (like SB) or just a bigger transfer buffer. One possibility is to copy the remaining fragment of a line to a new transfer buffer (maybe twice the size). ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/25863#discussion_r2164718504