#ifndef SIMGRID_MC_ODPOR_WAKEUP_TREE_HPP
#define SIMGRID_MC_ODPOR_WAKEUP_TREE_HPP
+#include "src/mc/explo/odpor/WakeupTreeIterator.hpp"
#include "src/mc/explo/odpor/odpor_forward.hpp"
#include <memory>
+#include <optional>
#include <unordered_map>
namespace simgrid::mc::odpor {
class WakeupTreeNode {
private:
+ explicit WakeupTreeNode(const PartialExecution& u) : seq_(u) {}
+ explicit WakeupTreeNode(PartialExecution&& u) : seq_(std::move(u)) {}
+
+ WakeupTreeNode* parent_ = nullptr;
+
/** An ordered list of children of for this node in the tree */
- std::list<const WakeupTreeNode*> children_;
+ std::list<WakeupTreeNode*> children_;
/** @brief The contents of the node */
- ProcessSequence seq_;
+ PartialExecution seq_;
+
+ /** Allows the owning tree to insert directly into the child */
+ friend WakeupTree;
+ friend WakeupTreeIterator;
public:
+ ~WakeupTreeNode();
+ WakeupTreeNode(const WakeupTreeNode&) = delete;
+ WakeupTreeNode(WakeupTreeNode&&) = default;
+ WakeupTreeNode& operator=(const WakeupTreeNode&) = delete;
+ WakeupTreeNode& operator=(WakeupTreeNode&&) = default;
+
const auto begin() const { return this->children_.begin(); }
const auto end() const { return this->children_.end(); }
const auto rbegin() const { return this->children_.rbegin(); }
const auto rend() const { return this->children_.rend(); }
- const ProcessSequence& get_sequence() const { return seq_; }
- const std::list<const WakeupTreeNode*>& get_ordered_children() const { return children_; }
-
+ const PartialExecution& get_sequence() const { return seq_; }
+ const std::list<WakeupTreeNode*>& get_ordered_children() const { return children_; }
bool is_leaf() const { return children_.empty(); }
+ bool is_single_process() const { return seq_.size() == static_cast<size_t>(1); }
+ aid_t get_first_actor() const;
+
+ /** Insert a node `node` as a new child of this node */
+ void add_child(WakeupTreeNode* node);
};
class WakeupTree {
private:
- /** @brief The root node of the tree */
- const WakeupTreeNode* const root;
+ WakeupTreeNode* root_;
/**
* @brief All of the nodes that are currently are a part of the tree
* of the addresses that are referenced by the nodes WakeupTreeNode and Configuration.
* ODPOR guarantees that nodes are persisted as long as needed.
*/
- std::unordered_map<const WakeupTreeNode*, std::unique_ptr<WakeupTreeNode>> nodes_;
+ std::unordered_map<WakeupTreeNode*, std::unique_ptr<WakeupTreeNode>> nodes_;
+
+ void insert_node(std::unique_ptr<WakeupTreeNode> node);
+ void remove_node(WakeupTreeNode* node);
+ bool contains(WakeupTreeNode* node) const;
+
+ /**
+ * @brief Adds a new node to the tree, disconnected from
+ * any other, which represents the partial execution
+ * "fragment" `u`
+ */
+ WakeupTreeNode* make_node(const PartialExecution& u);
/* Allow the iterator to access the contents of the tree */
friend WakeupTreeIterator;
public:
WakeupTree();
+ explicit WakeupTree(std::unique_ptr<WakeupTreeNode> root);
+
+ auto begin() const { return WakeupTreeIterator(*this); }
+ auto end() const { return WakeupTreeIterator(); }
+
+ void remove_subtree_rooted_at(WakeupTreeNode* root);
+ static WakeupTree make_subtree_rooted_at(WakeupTreeNode* root);
+
+ /**
+ * @brief Whether or not this tree is considered empty
+ *
+ * @note Unlike other collection types, a wakeup tree is
+ * considered "empty" if it only contains the root node;
+ * that is, if it is "uninteresting". In such a case,
+ */
+ bool empty() const { return nodes_.size() == static_cast<size_t>(1); }
/**
* @brief Inserts an sequence `seq` of processes into the tree
* such that that this tree is a wakeup tree relative to the
* given execution
*/
- void insert(const Execution&, const ExecutionSequence& seq);
+ void insert(const Execution& E, const PartialExecution& seq);
};
} // namespace simgrid::mc::odpor
