diff options
Diffstat (limited to 'core/org.eclipse.cdt.core.spawner/utils/org/eclipse/cdt/utils/spawner/SpawnerOutputStream.java')
-rw-r--r-- | core/org.eclipse.cdt.core.spawner/utils/org/eclipse/cdt/utils/spawner/SpawnerOutputStream.java | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/core/org.eclipse.cdt.core.spawner/utils/org/eclipse/cdt/utils/spawner/SpawnerOutputStream.java b/core/org.eclipse.cdt.core.spawner/utils/org/eclipse/cdt/utils/spawner/SpawnerOutputStream.java new file mode 100644 index 00000000000..e3c8014f6c8 --- /dev/null +++ b/core/org.eclipse.cdt.core.spawner/utils/org/eclipse/cdt/utils/spawner/SpawnerOutputStream.java @@ -0,0 +1,91 @@ +/******************************************************************************* + * 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.spawner; + + +import java.io.IOException; +import java.io.OutputStream; + +/** + * @noextend This class is not intended to be subclassed by clients. + * @noinstantiate This class is not intended to be instantiated by clients. + */ +public class SpawnerOutputStream extends OutputStream { + private int fd; + + /** + * From a Unix valid file descriptor set a Reader. + * @param fd file descriptor. + */ + public SpawnerOutputStream(int fd) { + this.fd = 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(fd, 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 (fd == -1) + return; + int status = close0(fd); + if (status == -1) + throw new IOException("close error"); //$NON-NLS-1$ + fd = -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); + + static { + System.loadLibrary("spawner"); //$NON-NLS-1$ + } + +} |