Signed-off-by: 吴文峰 <kevin@lmve.net>

code/firmware-2.7.15.567b8ea/src/concurrency/Lock.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "../freertosinc.h"
+
+namespace concurrency
+{
+
+/**
+ * @brief Simple wrapper around FreeRTOS API for implementing a mutex lock
+ */
+class Lock
+{
+  public:
+    Lock();
+
+    Lock(const Lock &) = delete;
+    Lock &operator=(const Lock &) = delete;
+
+    /// Locks the lock.
+    //
+    // Must not be called from an ISR.
+    void lock();
+
+    // Unlocks the lock.
+    //
+    // Must not be called from an ISR.
+    void unlock();
+
+  private:
+#ifdef HAS_FREE_RTOS
+    SemaphoreHandle_t handle;
+#endif
+};
+
+} // namespace concurrency