@Override
public int write(ByteBuffer src) throws IOException {
int len = src.remaining();
if (len == 0) {
return 0;
}
data.touch(readOnly);
pos = data.readWrite(pos, src, 0 /*because we start writing from src.position()*/, len, true);
src.position(src.position() + len);
return len;
}
@Override
public int read(ByteBuffer dst) throws IOException {
int len = dst.remaining();
if (len == 0) {
return 0;
}
long newPos = data.readWrite(pos, dst, dst.position(), len, false);
len = (int) (newPos - pos);
if (len <= 0) {
return -1;
}
dst.position(dst.position() + len);
pos = newPos;
return len;
}