diff -r 516af714ebb4 -r f2950aff7424 perfsrv/memspy/memspy_plat/memspy_api/include/memspy/driver/user/MemSpyDriverClient.h
--- a/perfsrv/memspy/memspy_plat/memspy_api/include/memspy/driver/user/MemSpyDriverClient.h	Fri Sep 17 08:38:31 2010 +0300
+++ b/perfsrv/memspy/memspy_plat/memspy_api/include/memspy/driver/user/MemSpyDriverClient.h	Mon Oct 04 02:45:59 2010 +0300
@@ -30,18 +30,18 @@
 
 
 class RMemSpyDriverClient : public RBusLogicalChannel
-	{
+    {
 public: // GENERAL API
 
     /**
      *
      */
-	IMPORT_C TInt Open();
+    IMPORT_C TInt Open();
 
     /**
      *
      */
-	IMPORT_C void Close();
+    IMPORT_C void Close();
 
     /**
      *
@@ -54,7 +54,7 @@
     /**
      *
      */
-	IMPORT_C TInt ReadMemory( TUint aTid, TLinAddr aSrc, TDes8& aDest );
+    IMPORT_C TInt ReadMemory( TUint aTid, TLinAddr aSrc, TDes8& aDest );
 
 
 public: // CODE SEGS
@@ -62,17 +62,17 @@
     /**
      *
      */
-	IMPORT_C TInt GetCodeSegs( TAny** aHandleArray, TInt& aHandleCount, TBool aOnlyRamLoaded = EFalse );
+    IMPORT_C TInt GetCodeSegs( TAny** aHandleArray, TInt& aHandleCount, TBool aOnlyRamLoaded = EFalse );
 
     /**
      *
      */
-	IMPORT_C TInt GetCodeSegs( TUint aPid, TAny** aHandleArray, TInt& aHandleCount );
+    IMPORT_C TInt GetCodeSegs( TUint aPid, TAny** aHandleArray, TInt& aHandleCount );
 
     /**
      *
      */
-	IMPORT_C TInt GetCodeSegInfo( TAny* aHandle, TUint aPid, TMemSpyDriverCodeSegInfo& aInfo );
+    IMPORT_C TInt GetCodeSegInfo( TAny* aHandle, TUint aPid, TMemSpyDriverCodeSegInfo& aInfo );
 
 
 public: // CHUNKS
@@ -150,6 +150,22 @@
      */
     IMPORT_C TInt SetPriority( TUint aId, TThreadPriority aPriority );
 
+    
+public: // HEAP KERNEL COPY
+
+    /**
+     * Creates a copy of the kernel heap so long running operations (like dumping the heap data)
+     * don't need to lock the kernel heap.
+     * 
+     * At most one copy of the kernel heap is held at a time. Each time this function is called the 
+     * previous copy, if any, is erased.
+     */
+    IMPORT_C TInt CopyHeapDataKernel();
+    /**
+     * Frees the copy made using CopyHeapDataKernel() 
+     */
+    IMPORT_C TInt FreeHeapDataKernel();
+    
 public: // HEAP INFO
 
     /**
@@ -157,13 +173,16 @@
      */
     IMPORT_C TInt GetHeapInfoUser( TMemSpyHeapInfo& aInfo, TUint aTid );
     IMPORT_C TInt GetHeapInfoUser( TMemSpyHeapInfo& aInfo, TUint aTid, RArray<TMemSpyDriverFreeCell>& aFreeCells );
-	IMPORT_C TInt GetHeapInfoUser(TMemSpyHeapInfo& aInfo, TUint aTid, RArray<TMemSpyDriverCell>& aCells, TBool aCollectAllocatedCellsAsWellAsFree);
+    IMPORT_C TInt GetHeapInfoUser(TMemSpyHeapInfo& aInfo, TUint aTid, RArray<TMemSpyDriverCell>& aCells, TBool aCollectAllocatedCellsAsWellAsFree);
 
     /**
      *
      */
     IMPORT_C TInt GetHeapInfoKernel( TMemSpyHeapInfo& aInfo );
     IMPORT_C TInt GetHeapInfoKernel( TMemSpyHeapInfo& aInfo, RArray<TMemSpyDriverFreeCell>& aFreeCells );
+    IMPORT_C TInt GetHeapInfoKernel( TMemSpyHeapInfo& aInfo, RArray<TMemSpyDriverCell>& aCells, TBool aCollectAllocatedCellsAsWellAsFree);
+    IMPORT_C TInt GetHeapInfoKernel( TMemSpyHeapInfo& aInfo, RArray<TMemSpyDriverCell>& aCells, TBool aCollectAllocatedCellsAsWellAsFree, TBool aUseKernelCopy);
+    
 
 public: // HEAP DATA
 
@@ -178,10 +197,16 @@
     IMPORT_C TInt GetHeapDataNext( TUint aTid, TDes8& aDest, TUint& aReadAddress, TUint& aAmountRemaining );
 
     /**
-     *
+     * Get free cell data. If aFreeCellChecksum is 0, then no checksum comparison is performed.
+     * @pre must be called after CopyHeapDataKernel()    
      */
-    IMPORT_C HBufC8* GetHeapDataKernelLC( TMemSpyHeapInfo& aInfo, RArray<TMemSpyDriverFreeCell>& aFreeCells );
+    IMPORT_C TInt GetHeapDataKernel( TUint aTid, TDes8& aDest, TUint& aReadAddress, TUint& aAmountRemaining );
 
+    /**
+     * @pre must be called after GetHeapDataKernelNext()
+     */
+    IMPORT_C TInt GetHeapDataKernelNext( TUint aTid, TDes8& aDest, TUint& aReadAddress, TUint& aAmountRemaining );
+        
 
 public: // HEAP WALK
 
@@ -290,17 +315,17 @@
     /**
      * Get all of the handles in a specific container
      */
-	IMPORT_C TInt GetContainerHandles( TMemSpyDriverContainerType aContainer, TAny** aHandleArray, TInt& aHandleCount );
+    IMPORT_C TInt GetContainerHandles( TMemSpyDriverContainerType aContainer, TAny** aHandleArray, TInt& aHandleCount );
 
     /**
      * Get all handles of a specific type, for a specific thread. 
      */
-	IMPORT_C TInt GetThreadHandlesByType( TInt aTid, TMemSpyDriverContainerType aType, TAny** aHandleArray, TInt& aHandleCount );
+    IMPORT_C TInt GetThreadHandlesByType( TInt aTid, TMemSpyDriverContainerType aType, TAny** aHandleArray, TInt& aHandleCount );
 
     /**
      * Get all handles of a specific type, for a specific process. 
      */
-	IMPORT_C TInt GetProcessHandlesByType( TInt aPid, TMemSpyDriverContainerType aType, TAny** aHandleArray, TInt& aHandleCount );
+    IMPORT_C TInt GetProcessHandlesByType( TInt aPid, TMemSpyDriverContainerType aType, TAny** aHandleArray, TInt& aHandleCount );
 
     /**
      * Get handle info for a specific handle owner by a specific thread. If the handle is not thread-specific, then
@@ -325,8 +350,8 @@
      * to see if any of those handle containers happen to reference the specified thread or process (as defined by
      * aTid or aPid).
      */
-	IMPORT_C TInt GetReferencesToMyThread( TUint aTid );
-	IMPORT_C TInt GetReferencesToMyProcess( TUint aPid );
+    IMPORT_C TInt GetReferencesToMyThread( TUint aTid );
+    IMPORT_C TInt GetReferencesToMyProcess( TUint aPid );
 
     /**
      * Get info about a P&S kernel object
@@ -348,7 +373,7 @@
     /**
      * Gets handles of all sessions that are connected to a particular server
      */
-	IMPORT_C TInt GetServerSessionHandles( TAny* aServerHandle, TAny** aSessionHandleArray, TInt& aSessionHandleCount );
+    IMPORT_C TInt GetServerSessionHandles( TAny* aServerHandle, TAny** aSessionHandleArray, TInt& aSessionHandleCount );
 
     /**
      * Gets session information for a given session handle.
@@ -394,7 +419,7 @@
 
 private: // Data members
     RBuf8 iBuffer;
-	};
+    };