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diff agent/src/share/classes/sun/jvm/hotspot/utilities/AbstractHeapGraphWriter.java @ 12820:8ef918538e22

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6313383: SA: Update jmap to support HPROF binary format "JAVA PROFILE 1.0.2" Summary: Adds support for large(>4G) heap dumps in hprof format. Adds tests and updates testlibrary. Reviewed-by: sla, allwin Contributed-by: fredrik.arvidsson@oracle.com
author sla
date Fri, 04 Oct 2013 13:44:49 +0200
parents da91efe96a93
children de6a9e811145
line wrap: on
line diff
--- a/agent/src/share/classes/sun/jvm/hotspot/utilities/AbstractHeapGraphWriter.java	Fri Oct 04 13:01:07 2013 +0200
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/AbstractHeapGraphWriter.java	Fri Oct 04 13:44:49 2013 +0200
@@ -59,6 +59,7 @@
 
                     public boolean doObj(Oop oop) {
                         try {
+                            writeHeapRecordPrologue();
                             if (oop instanceof TypeArray) {
                                 writePrimitiveArray((TypeArray)oop);
                             } else if (oop instanceof ObjArray) {
@@ -97,6 +98,7 @@
                                 // not-a-Java-visible oop
                                 writeInternalObject(oop);
                             }
+                            writeHeapRecordEpilogue();
                         } catch (IOException exp) {
                             throw new RuntimeException(exp);
                         }
@@ -416,6 +418,12 @@
     protected void writeHeapFooter() throws IOException {
     }
 
+    protected void writeHeapRecordPrologue() throws IOException {
+    }
+
+    protected void writeHeapRecordEpilogue() throws IOException {
+    }
+
     // HeapVisitor, OopVisitor methods can't throw any non-runtime
     // exception. But, derived class write methods (which are called
     // from visitor callbacks) may throw IOException. Hence, we throw