Use the actual size of memory allocations to update the memory status
counters.  Fix the roundup() function of mem3 to be much closer to the
actual allocation size.  Ticket #3226. (CVS 5440)

FossilOrigin-Name: 5c22132eb171058f30ec5b7562b8164611236748
diff --git a/src/malloc.c b/src/malloc.c
index 317061c..86ba2be 100644
--- a/src/malloc.c
+++ b/src/malloc.c
@@ -12,7 +12,7 @@
 **
 ** Memory allocation functions used throughout sqlite.
 **
-** $Id: malloc.c,v 1.28 2008/07/14 12:38:21 drh Exp $
+** $Id: malloc.c,v 1.29 2008/07/18 18:56:17 drh Exp $
 */
 #include "sqliteInt.h"
 #include <stdarg.h>
@@ -224,7 +224,10 @@
     sqlite3MallocAlarm(nFull);
     p = sqlite3Config.m.xMalloc(nFull);
   }
-  if( p ) sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nFull);
+  if( p ){
+    nFull = sqlite3MallocSize(p);
+    sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nFull);
+  }
   *pp = p;
   return nFull;
 }
@@ -504,6 +507,7 @@
         pNew = sqlite3Config.m.xRealloc(pOld, nNew);
       }
       if( pNew ){
+        nNew = sqlite3MallocSize(pNew);
         sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
       }
     }