#include <xbt/base.h>
-#include "PageStore.hpp"
-#include "AddressSpace.hpp"
+#include <mc/PageStore.hpp>
+#include <mc/AddressSpace.hpp>
+#include <mc/ChunkedData.hpp>
namespace simgrid {
namespace mc {
-class PerPageCopy {
- PageStore* store_;
- std::vector<std::size_t> pagenos_;
-public:
- PerPageCopy() : store_(nullptr) {}
- PerPageCopy(PerPageCopy const& that)
- {
- store_ = that.store_;
- pagenos_ = that.pagenos_;
- for (std::size_t pageno : pagenos_)
- store_->ref_page(pageno);
- }
- void clear()
- {
- for (std::size_t pageno : pagenos_)
- store_->unref_page(pageno);
- pagenos_.clear();
- }
- ~PerPageCopy() {
- clear();
- }
-
- PerPageCopy(PerPageCopy&& that)
- {
- store_ = that.store_;
- that.store_ = nullptr;
- pagenos_ = std::move(that.pagenos_);
- that.pagenos_.clear();
- }
- PerPageCopy& operator=(PerPageCopy const& that)
- {
- this->clear();
- store_ = that.store_;
- pagenos_ = that.pagenos_;
- for (std::size_t pageno : pagenos_)
- store_->ref_page(pageno);
- return *this;
- }
- PerPageCopy& operator=(PerPageCopy && that)
- {
- this->clear();
- store_ = that.store_;
- that.store_ = nullptr;
- pagenos_ = std::move(that.pagenos_);
- that.pagenos_.clear();
- return *this;
- }
-
- std::size_t page_count() const
- {
- return pagenos_.size();
- }
-
- std::size_t pageno(std::size_t i) const
- {
- return pagenos_[i];
- }
-
- const std::size_t* pagenos() const { return pagenos_.data(); }
- std::size_t* pagenos() { return pagenos_.data(); }
-
- const void* page(std::size_t i) const
- {
- return store_->get_page(pagenos_[i]);
- }
-
- PerPageCopy(PageStore& store, AddressSpace& as,
- remote_ptr<void> addr, std::size_t page_count,
- const size_t* ref_page_numbers, const std::uint64_t* pagemap);
-};
-
enum class RegionType {
Unknown = 0,
Heap = 1,
void operator()(void* p) const;
};
-/** @brief Copy/snapshot of a given memory region
+typedef std::unique_ptr<char[], data_deleter> unique_data_ptr;
+
+/** A copy/snapshot of a given memory region
*
* Different types of region snapshot storage types exist:
- * <ul>
- * <li>flat/dense snapshots are a simple copy of the region;</li>
- * <li>sparse/per-page snapshots are snaapshots which shared
- * identical pages.</li>
- * <li>privatized (SMPI global variable privatisation).
- * </ul>
+ *
+ * * flat/dense snapshots are a simple copy of the region;
+ *
+ * * sparse/per-page snapshots are snaapshots which shared
+ * identical pages.
+ *
+ * * privatized (SMPI global variable privatisation).
*
* This is handled with a variant based approch:
*
- * * `storage_type` identified the type of storage;
- * * an anonymous enum is used to distinguish the relevant types for
- * each type.
+ * * `storage_type` identified the type of storage;
+ *
+ * * an anonymous enum is used to distinguish the relevant types for
+ * each type.
*/
class RegionSnapshot {
public:
static const RegionType UnknownRegion = RegionType::Unknown;
static const RegionType HeapRegion = RegionType::Heap;
static const RegionType DataRegion = RegionType::Data;
- static const StorageType NoData = StorageType::NoData;
- static const StorageType FlatData = StorageType::Flat;
- static const StorageType ChunkedData = StorageType::Chunked;
- static const StorageType PrivatizedData = StorageType::Privatized;
public:
- typedef std::unique_ptr<char[], data_deleter> flat_data_ptr;
+ typedef unique_data_ptr flat_data_ptr;
private:
RegionType region_type_;
StorageType storage_type_;
void *start_addr_;
/** @brief Size of the data region in bytes */
- size_t size_;
+ std::size_t size_;
/** @brief Permanent virtual address of the region
*
void *permanent_addr_;
flat_data_ptr flat_data_;
- PerPageCopy page_numbers_;
+ ChunkedData page_numbers_;
std::vector<RegionSnapshot> privatized_regions_;
public:
RegionSnapshot() :
region_type_(UnknownRegion),
- storage_type_(NoData),
+ storage_type_(StorageType::NoData),
object_info_(nullptr),
start_addr_(nullptr),
size_(0),
{}
RegionSnapshot(RegionType type, void *start_addr, void* permanent_addr, size_t size) :
region_type_(type),
- storage_type_(NoData),
+ storage_type_(StorageType::NoData),
object_info_(nullptr),
start_addr_(start_addr),
size_(size),
void clear()
{
region_type_ = UnknownRegion;
- storage_type_ = NoData;
+ storage_type_ = StorageType::NoData;
privatized_regions_.clear();
page_numbers_.clear();
flat_data_.reset();
void clear_data()
{
- storage_type_ = NoData;
+ storage_type_ = StorageType::NoData;
flat_data_.reset();
page_numbers_.clear();
privatized_regions_.clear();
void flat_data(flat_data_ptr data)
{
- storage_type_ = FlatData;
+ storage_type_ = StorageType::Flat;
flat_data_ = std::move(data);
page_numbers_.clear();
privatized_regions_.clear();
}
const char* flat_data() const { return flat_data_.get(); }
- void page_data(PerPageCopy page_data)
+ void page_data(ChunkedData page_data)
{
- storage_type_ = ChunkedData;
+ storage_type_ = StorageType::Chunked;
flat_data_.reset();
page_numbers_ = std::move(page_data);
privatized_regions_.clear();
}
- PerPageCopy const& page_data() const { return page_numbers_; }
+ ChunkedData const& page_data() const { return page_numbers_; }
void privatized_data(std::vector<RegionSnapshot> data)
{
- storage_type_ = PrivatizedData;
+ storage_type_ = StorageType::Privatized;
flat_data_.reset();
page_numbers_.clear();
privatized_regions_ = std::move(data);
};
RegionSnapshot privatized_region(
- RegionType type, void *start_addr, void* data_addr, size_t size);
+ RegionType type, void *start_addr, void* data_addr, std::size_t size);
RegionSnapshot dense_region(
- RegionType type, void *start_addr, void* data_addr, size_t size);
+ RegionType type, void *start_addr, void* data_addr, std::size_t size);
simgrid::mc::RegionSnapshot sparse_region(
- RegionType type, void *start_addr, void* data_addr, size_t size,
+ RegionType type, void *start_addr, void* data_addr, std::size_t size,
RegionSnapshot const* ref_region);
simgrid::mc::RegionSnapshot region(
- RegionType type, void *start_addr, void* data_addr, size_t size,
+ RegionType type, void *start_addr, void* data_addr, std::size_t size,
RegionSnapshot const* ref_region);
}
