Remove some more usage of mc_model_checker in Region and snapshoting logic

[simgrid.git] / src / mc / sosp / Snapshot.hpp

diff --git a/src/mc/sosp/Snapshot.hpp b/src/mc/sosp/Snapshot.hpp
index 5b8bb66..6fde410 100644 (file)
--- a/src/mc/sosp/Snapshot.hpp
+++ b/src/mc/sosp/Snapshot.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2020. 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. */
@@ -8,16 +8,15 @@
 
 #include "src/mc/ModelChecker.hpp"
 #include "src/mc/inspect/mc_unw.hpp"
-#include "src/mc/remote/RemoteClient.hpp"
 #include "src/mc/sosp/Region.hpp"
+#include "src/mc/sosp/RemoteProcessMemory.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;
@@ -34,7 +33,7 @@ struct s_mc_stack_frame_t {
   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;
@@ -43,30 +42,32 @@ struct s_local_variable_t {
   simgrid::mc::Type* type;
   void* address;
 };
-typedef s_local_variable_t* local_variable_t;
-typedef const s_local_variable_t* const_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;
-typedef const s_mc_snapshot_stack_t* const_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 {
+  PageStore& page_store_;
+
 public:
   /* Initialization */
-  Snapshot(int num_state, RemoteClient* process = &mc_model_checker->process());
-  ~Snapshot() = default;
+  Snapshot(long num_state, PageStore& store, RemoteProcessMemory& memory);
 
   /* Regular use */
   bool on_heap(const void* address) const
   {
-    const s_xbt_mheap_t* heap = process()->get_heap();
+    const s_xbt_mheap_t* heap = get_remote_process_memory()->get_heap();
     return address >= heap->heapbase && address < heap->breakval;
   }
 
@@ -74,13 +75,14 @@ public:
                    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(RemoteProcessMemory& memory) const;
+
+  bool equals_to(const Snapshot& other, RemoteProcessMemory& memory);
 
   // To be private
-  int num_state_;
+  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_;
@@ -88,11 +90,14 @@ public:
   std::vector<s_mc_snapshot_ignored_data_t> ignored_data_;
 
 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 add_region(RegionType type, RemoteProcessMemory& memory, ObjectInformation* object_info, void* start_addr,
+                  std::size_t size);
+  void snapshot_regions(RemoteProcessMemory& memory);
+  void snapshot_stacks(RemoteProcessMemory& memory);
+  void handle_ignore();
+  void ignore_restore() const;
+  hash_type do_hash() const;
 };
-} // namespace mc
-} // namespace simgrid
+} // namespace simgrid::mc
 
 #endif