[mc] Comments/documentation of memory related code

[simgrid.git] / src / xbt / mmalloc / mmprivate.h

diff --git a/src/xbt/mmalloc/mmprivate.h b/src/xbt/mmalloc/mmprivate.h
index aad689e..dd3856a 100644 (file)
--- a/src/xbt/mmalloc/mmprivate.h
+++ b/src/xbt/mmalloc/mmprivate.h
@@ -1,15 +1,16 @@
-/* Declarations for `mmalloc' and friends.
-   Copyright 1990, 1991, 1992 Free Software Foundation
+/* Declarations for `mmalloc' and friends. */
 
-   Written May 1989 by Mike Haertel.
-   Heavily modified Mar 1992 by Fred Fish. (fnf@cygnus.com) */
-
-/* Copyright (c) 2010-2013. The SimGrid Team.
+/* Copyright (c) 2010-2014. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
+/* Copyright 1990, 1991, 1992 Free Software Foundation
+
+   Written May 1989 by Mike Haertel.
+   Heavily modified Mar 1992 by Fred Fish. (fnf@cygnus.com) */
+
 #ifndef __MMPRIVATE_H
 #define __MMPRIVATE_H 1
 
@@ -109,6 +110,7 @@ struct mstats
 };
 
 typedef struct s_heap_area{
+  int valid;
   int block;
   int fragment;
 }s_heap_area_t, *heap_area_t;
@@ -238,7 +240,9 @@ struct mdesc {
   void *breakval;
 
   /* The end of the current memory region for this malloc heap.  This is
-     the first location past the end of mapped memory. */
+     the first location past the end of mapped memory.
+     Compared to breakval, this value is rounded to the next memory page.
+      */
 
   void *top;