X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/dccf1b41e9c7b5a696f01abceaa2779fe65f154f..0e7d247670cc012d8e784d0c8bcbb70a1c0bb9c6:/src/mc/ChunkedData.cpp diff --git a/src/mc/ChunkedData.cpp b/src/mc/ChunkedData.cpp index 8db8c4e928..c3a635749c 100644 --- a/src/mc/ChunkedData.cpp +++ b/src/mc/ChunkedData.cpp @@ -1,5 +1,4 @@ -/* Copyright (c) 2007-2015. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2007-2017. 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. */ @@ -9,8 +8,8 @@ #include -#include -#include +#include "xbt/asserts.h" +#include "xbt/misc.h" #include "src/mc/AddressSpace.hpp" #include "src/mc/ChunkedData.hpp" @@ -21,7 +20,7 @@ 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 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 */ @@ -39,17 +38,15 @@ ChunkedData::ChunkedData(PageStore& store, AddressSpace& as, 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); + /* 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());