Squashed 'third_party/allwpilib_2017/' content from commit 35ac87d
Change-Id: I7bb6f5556c30d3f5a092e68de0be9c710c60c9f4
git-subtree-dir: third_party/allwpilib_2017
git-subtree-split: 35ac87d6ff8b7f061c4f18c9ea316e5dccd4888a
diff --git a/wpilibc/sim/include/MotorSafetyHelper.h b/wpilibc/sim/include/MotorSafetyHelper.h
new file mode 100644
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+++ b/wpilibc/sim/include/MotorSafetyHelper.h
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+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008-2017. All Rights Reserved. */
+/* Open Source Software - may be modified and shared by FRC teams. The code */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project. */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <set>
+
+#include "ErrorBase.h"
+#include "HAL/cpp/priority_mutex.h"
+
+namespace frc {
+
+class MotorSafety;
+
+class MotorSafetyHelper : public ErrorBase {
+ public:
+ explicit MotorSafetyHelper(MotorSafety* safeObject);
+ ~MotorSafetyHelper();
+ void Feed();
+ void SetExpiration(double expirationTime);
+ double GetExpiration() const;
+ bool IsAlive() const;
+ void Check();
+ void SetSafetyEnabled(bool enabled);
+ bool IsSafetyEnabled() const;
+ static void CheckMotors();
+
+ private:
+ // the expiration time for this object
+ double m_expiration;
+ // true if motor safety is enabled for this motor
+ bool m_enabled;
+ // the FPGA clock value when this motor has expired
+ double m_stopTime;
+ // protect accesses to the state for this object
+ mutable priority_recursive_mutex m_syncMutex;
+ MotorSafety* m_safeObject; // the object that is using the helper
+ // List of all existing MotorSafetyHelper objects.
+ static std::set<MotorSafetyHelper*> m_helperList;
+ // protect accesses to the list of helpers
+ static priority_recursive_mutex m_listMutex;
+};
+
+} // namespace frc