-/* Copyright (c) 2014-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2014-2023. 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. */
#ifndef SIMGRID_MC_MMU_HPP
#define SIMGRID_MC_MMU_HPP
+#include "xbt/misc.h"
#include <cstdint>
#include <utility>
-#ifndef XBT_ALWAYS_INLINE
-#define XBT_ALWAYS_INLINE inline __attribute__((always_inline))
-#endif
-
-/** Size of a memory page for the current system. */
-extern "C" int xbt_pagesize;
-/** Number of bits of addresses inside a given page, log2(xbt_pagesize). */
-extern "C" int xbt_pagebits;
-
-namespace simgrid {
-namespace mc {
+namespace simgrid::mc::mmu {
// TODO, do not depend on xbt_pagesize/xbt_pagebits but our own chunk size
-namespace mmu {
-
-static int chunk_size()
-{
- return xbt_pagesize;
-}
/** @brief How many memory pages are necessary to store size bytes?
*
*/
static XBT_ALWAYS_INLINE std::size_t chunk_count(std::size_t size)
{
- size_t page_count = size >> xbt_pagebits;
+ std::size_t page_count = size >> xbt_pagebits;
if (size & (xbt_pagesize - 1))
page_count++;
return page_count;
{
return (a >> xbt_pagebits) == (b >> xbt_pagebits);
}
-}
-}
-}
+} // namespace simgrid::mc::mmu
#endif