X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/646748e03f0997e891f569963d0113e16bb63890..a49a03122b2def71ff741e78d15b38cd1d171184:/src/mc/ChunkedData.cpp

diff --git a/src/mc/ChunkedData.cpp b/src/mc/ChunkedData.cpp
index c1f3e2d4c0..b60f9386ff 100644
--- a/src/mc/ChunkedData.cpp
+++ b/src/mc/ChunkedData.cpp
@@ -1,20 +1,31 @@
-#include <mc/ChunkedData.hpp>
+/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved.          */
 
-#define SOFT_DIRTY_BIT_NUMBER 55
-#define SOFT_DIRTY (((uint64_t)1) << SOFT_DIRTY_BIT_NUMBER)
+/* 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. */
+
+#include <cstddef>
+#include <cstdint>
+
+#include <vector>
+
+#include "xbt/asserts.h"
+#include "xbt/misc.h"
+
+#include "src/mc/AddressSpace.hpp"
+#include "src/mc/ChunkedData.hpp"
+#include "src/mc/PageStore.hpp"
 
 namespace simgrid {
 namespace mc {
 
 /** Take a per-page snapshot of a region
  *
- *  @param data            The start of the region (must be at the beginning of a page)
- *  @param pag_count       Number of pages of the region
+ *  @param addr            The start of the region (must be at the beginning of a page)
+ *  @param page_count      Number of pages of the region
  *  @return                Snapshot page numbers of this new snapshot
  */
 ChunkedData::ChunkedData(PageStore& store, AddressSpace& as,
-    remote_ptr<void> addr, std::size_t page_count,
-    const std::size_t* ref_page_numbers, const std::uint64_t* pagemap)
+    RemotePtr<void> addr, std::size_t page_count)
 {
   store_ = &store;
   this->pagenos_.resize(page_count);
@@ -22,15 +33,9 @@ ChunkedData::ChunkedData(PageStore& store, AddressSpace& as,
 
   for (size_t i = 0; i != page_count; ++i) {
 
-    // We don't have to compare soft-clean pages:
-    if (ref_page_numbers && pagemap && !(pagemap[i] & SOFT_DIRTY)) {
-      pagenos_[i] = ref_page_numbers[i];
-      store_->ref_page(ref_page_numbers[i]);
-      continue;
-    }
-
-      remote_ptr<void> page = remote(addr.address() + (i << xbt_pagebits));
-      xbt_assert(mc_page_offset((void*)page.address())==0,
+      RemotePtr<void> page = remote((void*)
+        simgrid::mc::mmu::join(i, addr.address()));
+      xbt_assert(simgrid::mc::mmu::split(page.address()).second == 0,
         "Not at the beginning of a page");
 
         /* Adding another copy (and a syscall) will probably slow things a lot.