-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. 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 "src/mc/ModelChecker.hpp"
#include "src/mc/inspect/mc_unw.hpp"
-#include "src/mc/remote/RemoteClient.hpp"
+#include "src/mc/remote/RemoteProcess.hpp"
#include "src/mc/sosp/Region.hpp"
// ***** MC Snapshot
/** Ignored data
*
- * Some parts of the snapshot are ignored by zeroing them out: the real
- * values is stored here.
- * */
+ * Some parts of the snapshot are ignored by zeroing them out: the real values is stored here.
+ */
struct s_mc_snapshot_ignored_data_t {
void* start;
std::vector<char> data;
std::string frame_name;
unw_cursor_t unw_cursor;
};
-typedef s_mc_stack_frame_t* mc_stack_frame_t;
+using mc_stack_frame_t = s_mc_stack_frame_t*;
struct s_local_variable_t {
simgrid::mc::Frame* subprogram;
simgrid::mc::Type* type;
void* address;
};
-typedef s_local_variable_t* local_variable_t;
+using local_variable_t = s_local_variable_t*;
+using const_local_variable_t = const s_local_variable_t*;
struct XBT_PRIVATE s_mc_snapshot_stack_t {
std::vector<s_local_variable_t> local_variables;
simgrid::mc::UnwindContext context;
std::vector<s_mc_stack_frame_t> stack_frames;
};
-typedef s_mc_snapshot_stack_t* mc_snapshot_stack_t;
+using mc_snapshot_stack_t = s_mc_snapshot_stack_t*;
+using const_mc_snapshot_stack_t = const s_mc_snapshot_stack_t*;
-namespace simgrid {
-namespace mc {
+namespace simgrid::mc {
+
+using hash_type = std::uint64_t;
class XBT_PRIVATE Snapshot final : public AddressSpace {
-public:
- Snapshot(int num_state, RemoteClient* process = &mc_model_checker->process());
- ~Snapshot() = default;
+ PageStore& page_store_;
+public:
/* Initialization */
+ Snapshot(long num_state, PageStore& store, RemoteProcess* process = &mc_model_checker->get_remote_process());
/* Regular use */
- const void* read_bytes(void* buffer, std::size_t size, RemotePtr<void> address,
- ReadOptions options = ReadOptions::none()) const override;
+ bool on_heap(const void* address) const
+ {
+ const s_xbt_mheap_t* heap = get_remote_process()->get_heap();
+ return address >= heap->heapbase && address < heap->breakval;
+ }
+
+ void* read_bytes(void* buffer, std::size_t size, RemotePtr<void> address,
+ ReadOptions options = ReadOptions::none()) const override;
Region* get_region(const void* addr) const;
Region* get_region(const void* addr, Region* hinted_region) const;
- void restore(RemoteClient* process);
+ void restore(RemoteProcess* process) const;
+
+ bool operator==(const Snapshot& other);
+ bool operator!=(const Snapshot& other) { return not(*this == other); }
// To be private
- int num_state_;
- std::size_t heap_bytes_used_;
+ long num_state_;
+ std::size_t heap_bytes_used_ = 0;
std::vector<std::unique_ptr<Region>> snapshot_regions_;
- std::set<pid_t> enabled_processes_;
std::vector<std::size_t> stack_sizes_;
std::vector<s_mc_snapshot_stack_t> stacks_;
std::vector<simgrid::mc::IgnoredHeapRegion> to_ignore_;
private:
void add_region(RegionType type, ObjectInformation* object_info, void* start_addr, std::size_t size);
- void snapshot_regions(simgrid::mc::RemoteClient* process);
- void snapshot_stacks(simgrid::mc::RemoteClient* process);
+ void snapshot_regions(RemoteProcess* process);
+ void snapshot_stacks(RemoteProcess* process);
+ void handle_ignore();
+ void ignore_restore() const;
+ hash_type do_hash() const;
};
-} // namespace mc
-} // namespace simgrid
-
-static XBT_ALWAYS_INLINE const void* mc_snapshot_get_heap_end(simgrid::mc::Snapshot* snapshot)
-{
- if (snapshot == nullptr)
- xbt_die("snapshot is nullptr");
- return mc_model_checker->process().get_heap()->breakval;
-}
+} // namespace simgrid::mc
#endif