Added class Schedule for threads

luprex/core/cpp/sched.hpp

@@ -0,0 +1,39 @@
+#ifndef SCHED_HPP
+#define SCHED_HPP
+
+#include <cstdint>
+#include <set>
+
+class SchedEntry {
+private:
+    friend class Schedule;
+
+    int64_t clock_;
+    int64_t thread_id_;
+    int64_t place_id_;
+
+public:
+    int64_t clock() const { return clock_; }
+    int64_t thread_id() const { return thread_id_; }
+    int64_t place_id() const { return place_id_; }
+
+    SchedEntry(int64_t clk, int64_t thid, int64_t plid) {
+        clock_ = clk;
+        thread_id_ = thid;
+        place_id_ = plid;
+    }
+
+    bool operator < (const SchedEntry &other) const;
+};
+
+class Schedule {
+private:
+    std::set<SchedEntry> schedule_;
+public:
+    void add(int64_t clk, int64_t thid, int64_t plid);
+    bool ready(int64_t clk) const;
+    SchedEntry pop();
+};
+
+#endif // SCHED_HPP
+