./src/solaris/classes/java/lang/UNIXProcess.java.linux

rev 5754 : [mq]: getPid-patch

*** 32,41 ****
--- 32,46 ----
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
+ import java.nio.charset.Charset;
+ import java.nio.file.Files;
+ import java.nio.file.LinkOption;
+ import java.nio.file.Path;
+ import java.nio.file.Paths;
  import java.util.Arrays;
  import java.util.concurrent.Executors;
  import java.util.concurrent.Executor;
  import java.util.concurrent.ThreadFactory;
  import java.util.concurrent.TimeUnit;
*** 268,277 ****
--- 273,309 ----
      @Override
      public synchronized boolean isAlive() {
          return !hasExited;
      }
  
+     @Override
+     public int getPid() {
+         if (!isAlive()) {
+             return -1;
+         } else {
+             return pid;
+         }
+     }
+ 
+     @Override
+     public String getProcessName(int pid) {
+         // look at /proc/<pid>/comm
+         if (pid < 0) {
+             throw new IllegalArgumentException( "pid == " + pid );
+         }
+         Path p = Paths.get( "/proc/" + pid + "/comm" );
+         if (!Files.exists(p, LinkOption.NOFOLLOW_LINKS )) {
+             return null;
+         }
+     
+         try {
+             return Files.readAllLines( p, Charset.defaultCharset() ).get(0);
+         } catch (IOException ioex) {
+             throw new RuntimeException( ioex );
+         }
+     }
+ 
      /* This routine initializes JNI field offsets for the class */
      private static native void initIDs();
  
      static {
          initIDs();