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Java Source | 1998-03-20 | 2.9 KB | 108 lines |
- /*
- * @(#)SocketOutputStream.java 1.14 98/03/18
- *
- * Copyright 1995-1997 by Sun Microsystems, Inc.,
- * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
- * All rights reserved.
- *
- * This software is the confidential and proprietary information
- * of Sun Microsystems, Inc. ("Confidential Information"). You
- * shall not disclose such Confidential Information and shall use
- * it only in accordance with the terms of the license agreement
- * you entered into with Sun.
- */
-
- package java.net;
-
- import java.io.FileOutputStream;
- import java.io.IOException;
-
- /**
- * This stream extends FileOutputStream to implement a
- * SocketOutputStream. Note that this class should <b>NOT</b> be
- * public.
- *
- * @version 1.14, 03/18/98
- * @author Jonathan Payne
- * @author Arthur van Hoff
- */
- class SocketOutputStream extends FileOutputStream
- {
- static {
- init();
- }
-
- private SocketImpl impl;
- private byte temp[] = new byte[1];
-
- /**
- * Creates a new SocketOutputStream. Can only be called
- * by a Socket. This method needs to hang on to the owner Socket so
- * that the fd will not be closed.
- * @param impl the socket output stream inplemented
- */
- SocketOutputStream(SocketImpl impl) throws IOException {
- super(impl.getFileDescriptor());
- this.impl = impl;
- }
-
- /**
- * Writes to the socket.
- * @param b the data to be written
- * @param off the start offset in the data
- * @param len the number of bytes that are written
- * @exception IOException If an I/O error has occurred.
- */
- private native void socketWrite(byte b[], int off, int len)
- throws IOException;
-
- /**
- * Writes a byte to the socket.
- * @param b the data to be written
- * @exception IOException If an I/O error has occurred.
- */
- public void write(int b) throws IOException {
- temp[0] = (byte)b;
- socketWrite(temp, 0, 1);
- }
-
- /**
- * Writes the contents of the buffer <i>b</i> to the socket.
- * @param b the data to be written
- * @exception SocketException If an I/O error has occurred.
- */
- public void write(byte b[]) throws IOException {
- socketWrite(b, 0, b.length);
- }
-
- /**
- * Writes <i>length</i> bytes from buffer <i>b</i> starting at
- * offset <i>len</i>.
- * @param b the data to be written
- * @param off the start offset in the data
- * @param len the number of bytes that are written
- * @exception SocketException If an I/O error has occurred.
- */
- public void write(byte b[], int off, int len) throws IOException {
- socketWrite(b, off, len);
- }
-
- /**
- * Closes the stream.
- */
- public void close() throws IOException {
- impl.close();
- }
-
- /**
- * Overrides finalize, the fd is closed by the Socket.
- */
- protected void finalize() {}
-
- /**
- * Perform class load-time initializations.
- */
- private native static void init();
-
- }
-