From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libjava/classpath/java/lang/Process.java | 130 +++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 libjava/classpath/java/lang/Process.java (limited to 'libjava/classpath/java/lang/Process.java') diff --git a/libjava/classpath/java/lang/Process.java b/libjava/classpath/java/lang/Process.java new file mode 100644 index 000000000..ccaa3f153 --- /dev/null +++ b/libjava/classpath/java/lang/Process.java @@ -0,0 +1,130 @@ +/* Process.java - Represent spawned system process + Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, 2005 + Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.lang; + +import java.io.File; +import java.io.InputStream; +import java.io.OutputStream; + +/** + * An instance of a subclass of Process is created by the + * Runtime.exec methods. Methods in Process + * provide a means to send input to a process, obtain the output from a + * subprocess, destroy a subprocess, obtain the exit value from a + * subprocess, and wait for a subprocess to complete. + * + *

This is dependent on the platform, and some processes (like native + * windowing processes, 16-bit processes in Windows, or shell scripts) may + * be limited in functionality. Because some platforms have limited buffers + * between processes, you may need to provide input and read output to prevent + * the process from blocking, or even deadlocking. + * + *

Even if all references to this object disapper, the process continues + * to execute to completion. There are no guarantees that the + * subprocess execute asynchronously or concurrently with the process which + * owns this object. + * + * @author Brian Jones + * @author Tom Tromey (tromey@cygnus.com) + * @see Runtime#exec(String[], String[], File) + * @since 1.0 + * @status updated to 1.4 + */ +public abstract class Process +{ + /** + * Empty constructor does nothing. + */ + public Process() + { + } + + /** + * Obtain the output stream that sends data to the subprocess. This is + * the STDIN of the subprocess. When implementing, you should probably + * use a buffered stream. + * + * @return the output stream that pipes to the process input + */ + public abstract OutputStream getOutputStream(); + + /** + * Obtain the input stream that receives data from the subprocess. This is + * the STDOUT of the subprocess. When implementing, you should probably + * use a buffered stream. + * + * @return the input stream that pipes data from the process output + */ + public abstract InputStream getInputStream(); + + /** + * Obtain the input stream that receives data from the subprocess. This is + * the STDERR of the subprocess. When implementing, you should probably + * use a buffered stream. + * + * @return the input stream that pipes data from the process error output + */ + public abstract InputStream getErrorStream(); + + /** + * The thread calling waitFor will block until the subprocess + * has terminated. If the process has already terminated then the method + * immediately returns with the exit value of the subprocess. + * + * @return the subprocess exit value; 0 conventionally denotes success + * @throws InterruptedException if another thread interrupts the blocked one + */ + public abstract int waitFor() throws InterruptedException; + + /** + * When a process terminates there is associated with that termination + * an exit value for the process to indicate why it terminated. A return + * of 0 denotes normal process termination by convention. + * + * @return the exit value of the subprocess + * @throws IllegalThreadStateException if the subprocess has not terminated + */ + public abstract int exitValue(); + + /** + * Kills the subprocess and all of its children forcibly. + */ + public abstract void destroy(); +} // class Process -- cgit v1.2.3