1 files changed, 35 insertions, 0 deletions
diff --git a/src/atomic_time_point.hh b/src/atomic_time_point.hh
new file mode 100644
index 0000000..13e62aa
--- /dev/null
+++ b/src/atomic_time_point.hh
@@ -0,0 +1,35 @@
+#ifndef ATOMIC_TIME_POINT_HH_
+#define ATOMIC_TIME_POINT_HH_
+
+#include <atomic>
+#include <chrono>
+
+// The purpose of this class is to provide a simple time point which may be read
+// from atomically and without locks.
+
+namespace low_latency {
+
+class AtomicTimePoint final {
+  private:
+    std::atomic<std::int64_t> count{};
+    static_assert(decltype(count)::is_always_lock_free);
+
+  public:
+    AtomicTimePoint();
+    AtomicTimePoint(const AtomicTimePoint&) = delete;
+    AtomicTimePoint(AtomicTimePoint&&) = delete;
+    AtomicTimePoint operator=(const AtomicTimePoint&) = delete;
+    AtomicTimePoint operator=(AtomicTimePoint&&) = delete;
+    ~AtomicTimePoint();
+
+  public:
+    bool has_value() const;
+
+    std::chrono::steady_clock::time_point get() const;
+
+    void set(const std::chrono::steady_clock::time_point target);
+};
+
+} // namespace low_latency
+
+#endif
+\ No newline at end of file