public long IndexOf(byte b, long fromIndex, long toIndex)
{
if (_closed)
{
throw new IllegalStateException("closed");
}
if (fromIndex < 0 || toIndex < fromIndex)
{
throw new ArgumentException(
string.Format("fromIndex=%s toIndex=%s", fromIndex, toIndex));
}
while (fromIndex < toIndex)
{
long result = _easyBuffer.IndexOf(b, fromIndex, toIndex);
if (result != -1L)
{
return(result);
}
// The byte wasn't in the buffer. Give up if we've already reached our target size or if the
// underlying stream is exhausted.
long lastBufferSize = _easyBuffer.Size;
if (lastBufferSize >= toIndex || _source.Read(_easyBuffer, Segment.SIZE) == -1)
{
return(-1L);
}
// Continue the search from where we left off.
fromIndex = Math.Max(fromIndex, lastBufferSize);
}
return(-1L);
}
