Initial commit.

1 files changed, 38 insertions, 0 deletions

diff --git a/infra/sim.h b/infra/sim.h
new file mode 100644
index 0000000..185916a
--- /dev/null
+++ b/infra/sim.h
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+#include "infra/pipetrace.h"
+
+namespace infra {
+    struct sim {
+        virtual void clock() {}
+        virtual void unclock() {}
+
+        static std::vector<sim *> sims;
+
+        static std::uint64_t now;
+
+        sim() {
+            sims.emplace_back(this);
+        }
+
+        virtual ~sim() {
+            std::erase(sims, this);
+        }
+
+        static void advance() {
+            for (auto &s : sims)
+                s->clock();
+            for (auto &s : sims)
+                s->unclock();
+            ++now;
+        }
+
+        void pte(const transaction &t, const char *event, const std::string &data) {
+            pt::event(t, event, now, data);
+        }
+    };
+}