+++ /dev/null
-/* Copyright (c) 2007-2018. 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. */
-
-#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 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,
- RemotePtr<void> addr, std::size_t page_count)
-{
- store_ = &store;
- this->pagenos_.resize(page_count);
- std::vector<char> buffer(xbt_pagesize);
-
- for (size_t i = 0; i != page_count; ++i) {
-
- 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.
- TODO, optimize this somehow (at least by grouping the syscalls)
- if needed. Either:
- - reduce the number of syscalls
- - let the application snapshot itself
- - move the segments in shared memory (this will break `fork` however)
- */
-
- as.read_bytes(buffer.data(), xbt_pagesize, page, simgrid::mc::ProcessIndexDisabled);
-
- pagenos_[i] = store_->store_page(buffer.data());
-
- }
-}
-
-}
-}
