@Override
public void write(byte[] buffer, int offset, int length) throws IOException {
mClosedHelper.throwIfClosed();
if (length > 0) {
try {
synchronized (Framer.this) {
writeIntFrame(mPrefix, length);
writeBlob(buffer, offset, length);
mMultiplexedOutputStream.flush();
}
} catch (IOException e) {
// I/O error here can indicate the pipe is broken, so we need to prevent any
// further writes.
throw new DumpappOutputBrokenException(e);
}
}
}
@Override
public int read(byte[] buffer, int byteOffset, int byteCount) throws IOException {
mClosedHelper.throwIfClosed();
synchronized (Framer.this) {
// Ask the client for more data...
writeIntFrame(STDIN_REQUEST_FRAME_PREFIX, byteCount);
byte b = readFrameType();
if (b != STDIN_FRAME_PREFIX) {
throw new UnexpectedFrameException(STDIN_FRAME_PREFIX, b);
}
// Read what they gave us...
int length = readInt();
if (length > 0) {
if (length > byteCount) {
throw new DumpappFramingException(
"Expected at most " + byteCount + " bytes, got: " + length);
}
mInput.readFully(buffer, byteOffset, length);
}
return length;
}
}
@Override
public void close() throws IOException {
mClosedHelper.close();
}
