Initial commit

src/mx/tasking/load.h

@@ -0,0 +1,40 @@
+#pragma once
+#include <bitset>
+#include <cstdint>
+
+namespace mx::tasking {
+/**
+ * Persists the channel load for the last 64 requests.
+ */
+class Load
+{
+public:
+    constexpr Load() = default;
+    ~Load() = default;
+
+    Load &operator+=(const bool hit) noexcept
+    {
+        _hits <<= 1;
+        _hits.set(0, hit);
+        return *this;
+    }
+
+    Load &operator|=(const Load &other) noexcept
+    {
+        _hits |= other._hits;
+        return *this;
+    }
+
+    /**
+     * @return Number of successful requests.
+     */
+    [[nodiscard]] std::size_t count() const noexcept { return _hits.count(); }
+
+    bool operator<(const Load &other) const noexcept { return _hits.count() < other._hits.count(); }
+    bool operator<(const std::size_t other) const noexcept { return _hits.count() < other; }
+
+private:
+    // Bitvector of the last 64 requests.
+    std::bitset<64> _hits{0U};
+};
+} // namespace mx::tasking