public final void write()

in src/main/java/com/fazecast/jSerialComm/SerialPort.java [2352:2377]

• 20 lines of code
• 7 McCabe index (conditional complexity)

		public final void write(byte[] b, int off, int len) throws NullPointerException, IndexOutOfBoundsException, SerialPortIOException, SerialPortTimeoutException
		{
			// Perform error checking
			if (b == null)
				throw new NullPointerException("A null pointer was passed in for the write buffer.");
			if ((len < 0) || (off < 0) || ((off + len) > b.length))
				throw new IndexOutOfBoundsException("The specified write offset plus length extends past the end of the specified buffer.");

			// Write to the serial port until all bytes have been consumed
			int totalNumWritten = 0;
			while (totalNumWritten != len)
			{
				// Always ensure that the port has not been closed
				if (portHandle == 0)
					throw new SerialPortIOException("This port appears to have been shutdown or disconnected.");

				// Write the actual bytes to the serial port
				int numWritten = writeBytes(b, len - totalNumWritten, off + totalNumWritten);
				if (numWritten < 0)
					throw new SerialPortIOException("No bytes written. This port appears to have been shutdown or disconnected.");
				else if (numWritten == 0)
					throw new SerialPortTimeoutException("The write operation timed out before all data was written.");
				else
					totalNumWritten += numWritten;
			}
		}