X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9ae3c710a6a8ac04570f77d88eb8e0c7a13f101c..4b0aa1525597fd0800c4d00c6df3f3c49d53ee2c:/src/mc/ChunkedData.cpp diff --git a/src/mc/ChunkedData.cpp b/src/mc/ChunkedData.cpp deleted file mode 100644 index 4c94d7c025..0000000000 --- a/src/mc/ChunkedData.cpp +++ /dev/null @@ -1,57 +0,0 @@ -/* 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 -#include - -#include - -#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 addr, std::size_t page_count) -{ - store_ = &store; - this->pagenos_.resize(page_count); - std::vector buffer(xbt_pagesize); - - for (size_t i = 0; i != page_count; ++i) { - - RemotePtr 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()); - - } -} - -} -}