-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2022. 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. */
#ifndef SIMGRID_MC_STATE_HPP
#define SIMGRID_MC_STATE_HPP
-#include "src/mc/sosp/mc_snapshot.hpp"
-#include "src/kernel/activity/CommImpl.hpp"
#include "src/mc/Transition.hpp"
+#include "src/mc/sosp/Snapshot.hpp"
+#include "src/mc/mc_comm_pattern.hpp"
namespace simgrid {
namespace mc {
-enum class PatternCommunicationType {
- none = 0,
- send = 1,
- receive = 2,
-};
-
-class PatternCommunication {
-public:
- int num = 0;
- simgrid::kernel::activity::CommImpl* comm_addr;
- PatternCommunicationType type = PatternCommunicationType::send;
- unsigned long src_proc = 0;
- unsigned long dst_proc = 0;
- const char* src_host = nullptr;
- const char* dst_host = nullptr;
- std::string rdv;
- std::vector<char> data;
- int tag = 0;
- int index = 0;
-
- PatternCommunication() { std::memset(&comm_addr, 0, sizeof(comm_addr)); }
-
- PatternCommunication dup() const
- {
- simgrid::mc::PatternCommunication res;
- // num?
- res.comm_addr = this->comm_addr;
- res.type = this->type;
- // src_proc?
- // dst_proc?
- res.dst_proc = this->dst_proc;
- res.dst_host = this->dst_host;
- res.rdv = this->rdv;
- res.data = this->data;
- // tag?
- res.index = this->index;
- return res;
- }
-};
+/* A node in the exploration graph (kind-of) */
+class XBT_PRIVATE State {
+ static long expended_states_; /* Count total amount of states, for stats */
-/* On every state, each process has an entry of the following type.
- * This represents both the process and its transition because
- * a process cannot have more than one enabled transition at a given time.
- */
-class ProcessState {
- /* Possible exploration status of a process transition in a state.
- * Either the checker did not consider the transition, or it was considered and to do, or considered and done.
- */
- enum class InterleavingType {
- /** This process transition is not considered by the checker (yet?) */
- disabled = 0,
- /** The checker algorithm decided that this process transitions should be done at some point */
- todo,
- /** The checker algorithm decided that this should be done, but it was done in the meanwhile */
- done,
- };
-
- /** Exploration control information */
- InterleavingType state = InterleavingType::disabled;
+ /* Outgoing transition: what was the last transition that we took to leave this state? Useful for replay */
+ Transition transition_;
public:
- /** Number of times that the process was considered to be executed */
- // TODO, make this private
- unsigned int times_considered = 0;
-
- bool isDisabled() const { return this->state == InterleavingType::disabled; }
- bool isDone() const { return this->state == InterleavingType::done; }
- bool isTodo() const { return this->state == InterleavingType::todo; }
- /** Mark that we should try executing this process at some point in the future of the checker algorithm */
- void consider()
- {
- this->state = InterleavingType::todo;
- this->times_considered = 0;
- }
- void setDone() { this->state = InterleavingType::done; }
-};
+ explicit State();
-/* A node in the exploration graph (kind-of)
- */
-class XBT_PRIVATE State {
-public:
/** Sequential state number (used for debugging) */
- int num = 0;
+ long num_ = 0;
/** State's exploration status by process */
- std::vector<ProcessState> actorStates;
-
- Transition transition;
+ std::vector<ActorState> actor_states_;
/** The simcall which was executed, going out of that state */
- s_smx_simcall executed_req;
-
- /* Internal translation of the executed_req simcall
- *
- * SIMCALL_COMM_TESTANY is translated to a SIMCALL_COMM_TEST
- * and SIMCALL_COMM_WAITANY to a SIMCALL_COMM_WAIT.
- */
- s_smx_simcall internal_req;
+ s_smx_simcall executed_req_;
- /* Can be used as a copy of the remote synchro object */
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> internal_comm;
+ /** Observer of the transition leading to that sate */
+ RemotePtr<kernel::actor::SimcallObserver> remote_observer_;
/** Snapshot of system state (if needed) */
- std::shared_ptr<simgrid::mc::Snapshot> system_state;
+ std::shared_ptr<simgrid::mc::Snapshot> system_state_;
// For CommunicationDeterminismChecker
- std::vector<std::vector<simgrid::mc::PatternCommunication>> incomplete_comm_pattern;
- std::vector<unsigned> communicationIndices;
+ std::vector<std::vector<simgrid::mc::PatternCommunication>> incomplete_comm_pattern_;
+ std::vector<unsigned> communication_indices_;
+
+
+ /* Returns a positive number if there is another transition to pick, or -1 if not */
+ int next_transition() const;
- explicit State(unsigned long state_number);
+ /* Explore a new path */
+ RemotePtr<simgrid::kernel::actor::SimcallObserver> execute_next(int next);
- std::size_t interleaveSize() const;
- void addInterleavingSet(smx_actor_t actor) { this->actorStates[actor->get_pid()].consider(); }
- Transition getTransition() const;
+ std::size_t count_todo() const;
+ void mark_todo(aid_t actor) { this->actor_states_[actor].mark_todo(); }
+ Transition* get_transition() const;
+
+ /* Returns the total amount of states created so far (for statistics) */
+ static long get_expanded_states() { return expended_states_; }
+
+private:
+ void copy_incomplete_comm_pattern();
+ void copy_index_comm_pattern();
};
}
}
-XBT_PRIVATE smx_simcall_t MC_state_get_request(simgrid::mc::State* state);
-
#endif
