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 int exitValue ()
  32   {
  33     if (! hasExited ())
  34       throw new IllegalThreadStateException ("Process has not exited");
  35
  36     return exitCode;
  37   }
  38
  39   public InputStream getErrorStream ()
  40   {
  41     return errorStream;
  42   }
  43
  44   public InputStream getInputStream ()
  45   {
  46     return inputStream;
  47   }
  48
  49   public OutputStream getOutputStream ()
  50   {
  51     return outputStream;
  52   }
  53
  54   public native int waitFor () throws InterruptedException;
  55
  56   public ConcreteProcess (String[] progarray,
  57                           String[] envp,
  58                           File dir)
  59     throws IOException
  60   {
  61     for (int i = 0; i < progarray.length; i++)
  62       {
  63         String s = progarray[i];
  64
  65         if ( (s.indexOf (' ') >= 0) || (s.indexOf ('\t') >= 0))
  66           progarray[i] = "\"" + s + "\"";
  67       }
  68
  69     startProcess (progarray, envp, dir);
  70   }
  71
  72   // The standard streams (stdin, stdout and stderr, respectively)
  73   // of the child as seen by the parent process.
  74   private OutputStream outputStream;
  75   private InputStream inputStream;
  76   private InputStream errorStream;
  77
  78   // Handle to the child process - cast to HANDLE before use.
  79   private int procHandle;
  80
  81   // Exit code of the child if it has exited.
  82   private int exitCode;
  83
  84   private native boolean hasExited ();
  85   private native void startProcess (String[] progarray,
  86            String[] envp,
  87            File dir)
  88     throws IOException;
  89   private native void cleanup ();
  90 }