libjava/java/lang/Win32Process.java

   1 // Win32Process.java - Subclass of Process for Win32 systems.
   2
   3 /* Copyright (C) 2002, 2003  Free Software Foundation
   4
   5    This file is part of libgcj.
   6
   7 This software is copyrighted work licensed under the terms of the
   8 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   9 details.  */
  10
  11 package java.lang;
  12
  13 import java.io.File;
  14 import java.io.InputStream;
  15 import java.io.OutputStream;
  16 import java.io.IOException;
  17
  18 /**
  19  * @author Adam Megacz
  20  * @date Feb 24, 2002
  21  */
  22
  23 // This is entirely internal to our implementation.
  24
  25 // This file is copied to `ConcreteProcess.java' before compilation.
  26 // Hence the class name apparently does not match the file name.
  27 final class ConcreteProcess extends Process
  28 {
  29   public native void destroy ();
  30
  31   public native boolean hasExited ();
  32
  33   public int exitValue ()
  34   {
  35     if (! hasExited ())
  36       throw new IllegalThreadStateException ("Process has not exited");
  37
  38     return exitCode;
  39   }
  40
  41   public InputStream getErrorStream ()
  42   {
  43     return errorStream;
  44   }
  45
  46   public InputStream getInputStream ()
  47   {
  48     return inputStream;
  49   }
  50
  51   public OutputStream getOutputStream ()
  52   {
  53     return outputStream;
  54   }
  55
  56   public native int waitFor () throws InterruptedException;
  57
  58   public native void startProcess (String[] progarray,
  59                                    String[] envp,
  60                                    File dir)
  61     throws IOException;
  62
  63   public native void cleanup ();
  64
  65   public ConcreteProcess (String[] progarray,
  66                           String[] envp,
  67                           File dir)
  68     throws IOException
  69   {
  70     for (int i = 0; i < progarray.length; i++)
  71       {
  72         String s = progarray[i];
  73
  74         if ( (s.indexOf (' ') >= 0) || (s.indexOf ('\t') >= 0))
  75           progarray[i] = "\"" + s + "\"";
  76       }
  77
  78     startProcess (progarray, envp, dir);
  79   }
  80
  81   // The standard streams (stdin, stdout and stderr, respectively)
  82   // of the child as seen by the parent process.
  83   private OutputStream outputStream;
  84   private InputStream inputStream;
  85   private InputStream errorStream;
  86
  87   // Handle to the child process - cast to HANDLE before use.
  88   private int procHandle;
  89
  90   // Exit code of the child if it has exited.
  91   private int exitCode;
  92 }