Cache the size of a memory page for the current system.

[simgrid.git] / src / xbt / xbt_main.c

diff --git a/src/xbt/xbt_main.c b/src/xbt/xbt_main.c
index 26e8dd1..30c1a84 100644 (file)
--- a/src/xbt/xbt_main.c
+++ b/src/xbt/xbt_main.c
@@ -9,7 +9,7 @@
 #include "xbt/misc.h"
 #include "simgrid_config.h"     /* _XBT_WIN32 */
 #include "internal_config.h"    /* MMALLOC_WANT_OVERRIDE_LEGACY */
-
+#include "portable.h"
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
 #include "xbt/dynar.h"
@@ -35,6 +35,8 @@ xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
 int xbt_initialized = 0;
 int _sg_do_clean_atexit = 1;
 
+int xbt_pagesize;
+
 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
  * This is crude and rather compiler-specific, unfortunately.
  */
@@ -84,6 +86,8 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
 static void xbt_preinit(void) {
   unsigned int seed = 2147483647;
 
+  xbt_pagesize = sysconf(_SC_PAGESIZE);
+
 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
   mmalloc_preinit();
 #endif