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diff agent/src/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java @ 2177:3582bf76420e

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6990754: Use native memory and reference counting to implement SymbolTable Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank
author coleenp
date Thu, 27 Jan 2011 16:11:27 -0800
parents c18cbe5936b8
children 32f7097f9d8f
line wrap: on
line diff
--- a/agent/src/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java	Thu Jan 27 13:42:28 2011 -0800
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java	Thu Jan 27 16:11:27 2011 -0800
@@ -740,7 +740,7 @@
         for (Iterator itr = fields.iterator(); itr.hasNext();) {
             Field field = (Field) itr.next();
             Symbol name = symTbl.probe(field.getID().getName());
-            writeObjectID(name);
+            writeSymbolID(name);
             char typeCode = (char) field.getSignature().getByteAt(0);
             int kind = signatureToHprofKind(typeCode);
             out.writeByte((byte)kind);
@@ -852,7 +852,7 @@
     private void writeSymbol(Symbol sym) throws IOException {
         byte[] buf = sym.asString().getBytes("UTF-8");
         writeHeader(HPROF_UTF8, buf.length + OBJ_ID_SIZE);
-        writeObjectID(sym);
+        writeSymbolID(sym);
         out.write(buf);
     }
 
@@ -869,7 +869,7 @@
                         out.writeInt(serialNum);
                         writeObjectID(clazz);
                         out.writeInt(DUMMY_STACK_TRACE_ID);
-                        writeObjectID(k.getName());
+                        writeSymbolID(k.getName());
                         serialNum++;
                     } catch (IOException exp) {
                         throw new RuntimeException(exp);
@@ -901,6 +901,10 @@
         writeObjectID(address);
     }
 
+    private void writeSymbolID(Symbol sym) throws IOException {
+        writeObjectID(getAddressValue(sym.getAddress()));
+    }
+
     private void writeObjectID(long address) throws IOException {
         if (OBJ_ID_SIZE == 4) {
             out.writeInt((int) address);