X-Git-Url: http://git.megacz.com/?p=nestedvm.git;a=blobdiff_plain;f=src%2Forg%2Fibex%2Fnestedvm%2Futil%2FSeekable.java;h=2e48a7de4b251df9b23f8a09de8712b46a70aa5b;hp=98f2c8e413dc0bebf6eeb53f9db205d2d4135472;hb=c59b7cfc7a6b67574d38c5c8eb7732bad37236b0;hpb=034a42fa65955289442614ef9914e5474fac62aa

diff --git a/src/org/ibex/nestedvm/util/Seekable.java b/src/org/ibex/nestedvm/util/Seekable.java
index 98f2c8e..2e48a7d 100644
--- a/src/org/ibex/nestedvm/util/Seekable.java
+++ b/src/org/ibex/nestedvm/util/Seekable.java
@@ -16,6 +16,18 @@ public abstract class Seekable {
         return n == -1 ? -1 : buf[0]&0xff;
     }
     
+    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;
+            total += n;
+        }
+        return total == 0 ? -1 : total;
+    }
+    
     public static class ByteArray extends Seekable {
         protected byte[] data;
         protected int pos;