// PosixProcess.java - Subclass of Process for POSIX systems.

/* Copyright (C) 1998, 1999  Cygnus Solutions

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the
Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
details.  */

package java.lang;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;

/**
 * @author Tom Tromey <tromey@cygnus.com>
 * @date May 3, 1999
 */

// This is entirely internal to our implementation.

// This file is copied to `ConcreteProcess.java' before compilation.
// Hence the class name apparently does not match the file name.
final class ConcreteProcess extends Process
{
  public native void destroy ();
  public native int exitValue ();

  public InputStream getErrorStream ()
  {
    return errorStream;
  }

  public InputStream getInputStream ()
  {
    return inputStream;
  }

  public OutputStream getOutputStream ()
  {
    return outputStream;
  }

  public native int waitFor () throws InterruptedException;

  // This is used for actual initialization, as we can't write a
  // native constructor.
  public native void startProcess (String[] progarray, String[] envp)
    throws IOException;

  // This file is copied to `ConcreteProcess.java' before
  // compilation.  Hence the constructor name apparently does not
  // match the file name.
  public ConcreteProcess (String[] progarray, String[] envp) throws IOException
  {
    startProcess (progarray, envp);
  }

  // The process id.  This is cast to a pid_t on the native side.
  private long pid;

  // True when child has exited.
  private boolean hasExited;

  // The exit status, if the child has exited.
  private int status;

  // The streams.
  private InputStream errorStream;
  private InputStream inputStream;
  private OutputStream outputStream;
}