public override java.nio.LongBuffer compact() { if (byteBuffer.isReadOnly()) { throw new java.nio.ReadOnlyBufferException(); } byteBuffer.limit(_limit * libcore.io.SizeOf.LONG); byteBuffer.position(_position * libcore.io.SizeOf.LONG); byteBuffer.compact(); byteBuffer.clear(); _position = _limit - _position; _limit = _capacity; _mark = UNSET_MARK; return(this); }
public override int read(char[] buffer, int offset, int length) { lock (@lock) { if (!isOpen()) { throw new System.IO.IOException("InputStreamReader is closed"); } java.util.Arrays.checkOffsetAndCount(buffer.Length, offset, length); if (length == 0) { return(0); } java.nio.CharBuffer @out = java.nio.CharBuffer.wrap(buffer, offset, length); java.nio.charset.CoderResult result = java.nio.charset.CoderResult.UNDERFLOW; // bytes.remaining() indicates number of bytes in buffer // when 1-st time entered, it'll be equal to zero bool needInput = !bytes.hasRemaining(); while (@out.hasRemaining()) { // fill the buffer if needed if (needInput) { try { if (@in.available() == 0 && @out.position() > offset) { // we could return the result without blocking read break; } } catch (System.IO.IOException) { } // available didn't work so just try the read int desiredByteCount = bytes.capacity() - bytes.limit(); int off = bytes.arrayOffset() + bytes.limit(); int actualByteCount = @in.read(((byte[])bytes.array()), off, desiredByteCount); if (actualByteCount == -1) { endOfInput = true; break; } else { if (actualByteCount == 0) { break; } } bytes.limit(bytes.limit() + actualByteCount); needInput = false; } // decode bytes result = decoder.decode(bytes, @out, false); if (result.isUnderflow()) { // compact the buffer if no space left if (bytes.limit() == bytes.capacity()) { bytes.compact(); bytes.limit(bytes.position()); bytes.position(0); } needInput = true; } else { break; } } if (result == java.nio.charset.CoderResult.UNDERFLOW && endOfInput) { result = decoder.decode(bytes, @out, true); decoder.flush(@out); decoder.reset(); } if (result.isMalformed() || result.isUnmappable()) { result.throwException(); } return(@out.position() - offset == 0 ? -1 : @out.position() - offset); } }