$process method
Processes a chunk of input data
Implementation
void $process(List<int> chunk, int start, int end) {
int t = start;
if (pos > 0) {
for (; t < end && pos < blockLength; pos++, t++) {
buffer[pos] = chunk[t];
}
messageLength += t - start;
if (pos < blockLength) return;
$update(buffer);
pos = 0;
}
while ((end - t) >= blockLength) {
messageLength += blockLength;
$update(chunk, t);
t += blockLength;
}
messageLength += end - t;
for (; t < end; pos++, t++) {
buffer[pos] = chunk[t];
}
}