-namespace simgrid {
-namespace mc {
-
-RegionSnapshot::~RegionSnapshot() {}
-
-simgrid::mc::RegionSnapshot dense_region(
- mc_region_type_t region_type,
- void *start_addr, void* permanent_addr, size_t size)
-{
- std::vector<char> data(size);
- mc_model_checker->process().read_bytes(data.data(), size,
- remote(permanent_addr),
- simgrid::mc::ProcessIndexDisabled);
-
- simgrid::mc::RegionSnapshot region(
- region_type, start_addr, permanent_addr, size);
- region.flat_data(std::move(data));
-
- XBT_DEBUG("New region : type : %d, data : %p (real addr %p), size : %zu",
- region_type, region.flat_data().data(), permanent_addr, size);
- return std::move(region);
-}
-
-/** @brief Take a snapshot of a given region
- *
- * @param type
- * @param start_addr Address of the region in the simulated process
- * @param permanent_addr Permanent address of this data (for privatized variables, this is the virtual address of the privatized mapping)
- * @param size Size of the data*
- */
-static simgrid::mc::RegionSnapshot region(
- mc_region_type_t type, void *start_addr, void* permanent_addr, size_t size)
-{
- if (_sg_mc_sparse_checkpoint) {
- return sparse_region(type, start_addr, permanent_addr, size);
- } else {
- return dense_region(type, start_addr, permanent_addr, size);
- }
-}
-
-simgrid::mc::RegionSnapshot sparse_region(mc_region_type_t region_type,
- void *start_addr, void* permanent_addr, size_t size)
-{
- mc_process_t process = &mc_model_checker->process();
-
- xbt_assert((((uintptr_t)start_addr) & (xbt_pagesize-1)) == 0,
- "Not at the beginning of a page");
- xbt_assert((((uintptr_t)permanent_addr) & (xbt_pagesize-1)) == 0,
- "Not at the beginning of a page");
- size_t page_count = mc_page_count(size);
-
- simgrid::mc::PerPageCopy page_data(mc_model_checker->page_store(), *process,
- permanent_addr, page_count);
-
- simgrid::mc::RegionSnapshot region(
- region_type, start_addr, permanent_addr, size);
- region.page_data(std::move(page_data));
- return std::move(region);
-}
-
-}
-}
-