X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d013cec453ee914baf3c62275ea2042c41e7c270..ed2ddc654df95d52f686a8056d2c69fdaab20f30:/src/xbt/mmalloc/mm_module.c?ds=sidebyside

diff --git a/src/xbt/mmalloc/mm_module.c b/src/xbt/mmalloc/mm_module.c
index 0dfd0279e1..8ee23eb6b3 100644
--- a/src/xbt/mmalloc/mm_module.c
+++ b/src/xbt/mmalloc/mm_module.c
@@ -1,5 +1,12 @@
-/* Initialization for access to a mmap'd malloc managed region.
-   Copyright 1992, 2000 Free Software Foundation, Inc.
+/* Initialization for access to a mmap'd malloc managed region. */
+
+/* Copyright (c) 2012-2014. 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 1992, 2000 Free Software Foundation, Inc.
 
    Contributed by Fred Fish at Cygnus Support.   fnf@cygnus.com
 
@@ -317,7 +324,7 @@ void *mmalloc_preinit(void)
 {
   int res;
   if (__mmalloc_default_mdp == NULL) {
-    unsigned long mask = ~((unsigned long)getpagesize() - 1);
+    unsigned long mask = ~((unsigned long)xbt_pagesize - 1);
     void *addr = (void*)(((unsigned long)sbrk(0) + HEAP_OFFSET) & mask);
     __mmalloc_default_mdp = xbt_mheap_new(-1, addr);
     /* Fixme? only the default mdp in protected against forks */
@@ -339,9 +346,9 @@ void *mmalloc_preinit(void)
 
 void mmalloc_postexit(void)
 {
-  /* Do not detach the default mdp or ldl won't be able to free the memory it allocated since we're in memory */
-  //  mmalloc_detach(__mmalloc_default_mdp);
-  xbt_mheap_destroy_no_free(__mmalloc_default_mdp);
+  /* Do not destroy the default mdp or ldl won't be able to free the memory it
+   * allocated since we're in memory */
+  // xbt_mheap_destroy_no_free(__mmalloc_default_mdp);
 }
 
 size_t mmalloc_get_bytes_used(xbt_mheap_t heap){
@@ -365,3 +372,16 @@ size_t mmalloc_get_bytes_used(xbt_mheap_t heap){
   return bytes;
 }
 
+ssize_t mmalloc_get_busy_size(xbt_mheap_t heap, void *ptr){
+
+  ssize_t block = ((char*)ptr - (char*)(heap->heapbase)) / BLOCKSIZE + 1;
+  if(heap->heapinfo[block].type == -1)
+    return -1;
+  else if(heap->heapinfo[block].type == 0)
+    return heap->heapinfo[block].busy_block.busy_size;
+  else{
+    ssize_t frag = ((uintptr_t) (ADDR2UINT (ptr) % (BLOCKSIZE))) >> heap->heapinfo[block].type;
+    return heap->heapinfo[block].busy_frag.frag_size[frag];
+  }
+    
+}