presence: Add any of redundancy policy
Add a bitwise logical or redundancy policy implementation
(fan is present if any sensor indicates as such).
Change-Id: I1d161478a4a6fe9d5690a385703e41c6fff9c81c
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/presence/anyof.hpp b/presence/anyof.hpp
new file mode 100644
index 0000000..70ddb43
--- /dev/null
+++ b/presence/anyof.hpp
@@ -0,0 +1,75 @@
+#pragma once
+
+#include <functional>
+#include <vector>
+#include "fan.hpp"
+#include "rpolicy.hpp"
+
+namespace phosphor
+{
+namespace fan
+{
+namespace presence
+{
+
+class PresenceSensor;
+
+/**
+ * @class AnyOf
+ * @brief AnyOf redundancy policy.
+ *
+ * The any of redundancy policy monitors all sensor
+ * states in the redundancy set and reports true when any
+ * sensor in the set reports true.
+ */
+class AnyOf : public RedundancyPolicy
+{
+ public:
+ AnyOf() = delete;
+ AnyOf(const AnyOf&) = default;
+ AnyOf& operator=(const AnyOf&) = default;
+ AnyOf(AnyOf&&) = default;
+ AnyOf& operator=(AnyOf&&) = default;
+ ~AnyOf() = default;
+
+ /**
+ * @brief Construct an any of bitwise policy.
+ *
+ * @param[in] fan - The fan associated with the policy.
+ * @param[in] s - The set of sensors associated with the policy.
+ */
+ AnyOf(
+ const Fan& fan,
+ const std::vector<std::reference_wrapper<PresenceSensor>>& s);
+
+ /**
+ * @brief stateChanged
+ *
+ * Update the inventory and execute the fallback
+ * policy.
+ *
+ * @param[in] present - The new presence state according
+ * to the specified sensor.
+ * @param[in] sensor - The sensor reporting the new state.
+ */
+ void stateChanged(bool present, PresenceSensor& sensor) override;
+
+ /**
+ * @brief monitor
+ *
+ * Start monitoring the fan.
+ */
+ void monitor() override;
+
+ private:
+
+ /** @brief All presence sensors in the redundancy set. */
+ std::vector<
+ std::tuple<
+ std::reference_wrapper<PresenceSensor>,
+ bool>> state;
+};
+
+} // namespace presence
+} // namespace fan
+} // namespace phosphor