X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;ds=sidebyside;f=src%2Forg%2Fibex%2Fnestedvm%2Futil%2FSeekable.java;h=bc21a553a2d315c9771b417483ecf94e20d85a6d;hb=b5282b0a1a8ca5212c75623610be6d0483fd35bd;hp=2e48a7de4b251df9b23f8a09de8712b46a70aa5b;hpb=c59b7cfc7a6b67574d38c5c8eb7732bad37236b0;p=nestedvm.git

diff --git a/src/org/ibex/nestedvm/util/Seekable.java b/src/org/ibex/nestedvm/util/Seekable.java
index 2e48a7d..bc21a55 100644
--- a/src/org/ibex/nestedvm/util/Seekable.java
+++ b/src/org/ibex/nestedvm/util/Seekable.java
@@ -1,3 +1,7 @@
+// Copyright 2000-2005 the Contributors, as shown in the revision logs.
+// Licensed under the Apache Public Source License 2.0 ("the License").
+// You may not use this file except in compliance with the License.
+
 package org.ibex.nestedvm.util;
 
 import java.io.*;
@@ -19,10 +23,10 @@ public abstract class Seekable {
     public int tryReadFully(byte[] buf, int off, int len) throws IOException {
         int total = 0;
         while(len > 0) {
-        	    int n = read(buf,off,len);
-        	    if(n == -1) break;
-        	    off += n;
-        	    len -= n;
+                int n = read(buf,off,len);
+                if(n == -1) break;
+                off += n;
+                len -= n;
             total += n;
         }
         return total == 0 ? -1 : total;
@@ -66,15 +70,13 @@ public abstract class Seekable {
         private final RandomAccessFile raf;
         
         public File(String fileName) throws IOException { this(fileName,false); }
-        public File(String fileName, boolean writable) throws IOException { this(new java.io.File(fileName),writable); }    
+        public File(String fileName, boolean writable) throws IOException { this(new java.io.File(fileName),writable,false); }    
         
-        public File(java.io.File file, boolean writable) throws IOException {
-            raf = new RandomAccessFile(file,writable ? "rw" : "r");
+        public File(java.io.File file, boolean writable, boolean truncate) throws IOException {
+            String mode = writable ? "rw" : "r";
+            raf = truncate ? Platform.truncatedRandomAccessFile(file,mode) : new RandomAccessFile(file,mode);
         }
         
-        // NOTE: RandomAccessFile.setLength() is a Java2 function
-        public void setLength(int n) throws IOException { raf.setLength(n); }
-        
         public int read(byte[] buf, int offset, int length) throws IOException { return raf.read(buf,offset,length); }
         public int write(byte[] buf, int offset, int length) throws IOException { raf.write(buf,offset,length); return length; }
         public void seek(int pos) throws IOException{ raf.seek(pos); }