| /******************************************************************************* |
| * Copyright (c) 2000, 2011 QNX Software Systems and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * QNX Software Systems - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.cdt.utils.pty; |
| |
| |
| import java.io.*; |
| |
| import org.eclipse.cdt.utils.pty.PTY.MasterFD; |
| |
| public class PTYOutputStream extends OutputStream { |
| |
| MasterFD master; |
| |
| /** |
| * From a Unix valid file descriptor set a Reader. |
| * @param fd file descriptor. |
| */ |
| public PTYOutputStream(MasterFD fd) { |
| master = fd; |
| } |
| |
| /** |
| * @see OutputStream#write(byte[], int, int) |
| */ |
| @Override |
| public void write(byte[] b, int off, int len) throws IOException { |
| if (b == null) { |
| throw new NullPointerException(); |
| } else if ( |
| (off < 0) |
| || (off > b.length) |
| || (len < 0) |
| || ((off + len) > b.length) |
| || ((off + len) < 0)) { |
| throw new IndexOutOfBoundsException(); |
| } else if (len == 0) { |
| return; |
| } |
| byte[] tmpBuf = new byte[len]; |
| System.arraycopy(b, off, tmpBuf, off, len); |
| write0(master.getFD(), tmpBuf, len); |
| } |
| /** |
| * Implementation of read for the InputStream. |
| * |
| * @exception IOException on error. |
| */ |
| @Override |
| public void write(int b) throws IOException { |
| byte[] buf = new byte[1]; |
| buf[0] = (byte) b; |
| write(buf, 0, 1); |
| } |
| |
| /** |
| * Close the Reader |
| * @exception IOException on error. |
| */ |
| @Override |
| public void close() throws IOException { |
| if (master.getFD() == -1) { |
| return; |
| } |
| int status = close0(master.getFD()); |
| if (status == -1) |
| { |
| throw new IOException("close error"); //$NON-NLS-1$ |
| } |
| master.setFD(-1); |
| } |
| |
| @Override |
| protected void finalize() throws IOException { |
| close(); |
| } |
| |
| private native int write0(int fd, byte[] b, int len) throws IOException; |
| private native int close0(int fd) throws IOException; |
| |
| static { |
| System.loadLibrary(PTY.LIBRARY_NAME); |
| } |
| |
| } |