C++ refactoring (#91)

TactilityCore/Source/EventFlag.h

@@ -2,62 +2,35 @@
 
 #include "CoreTypes.h"
 
+#ifdef ESP_TARGET
+#include "freertos/FreeRTOS.h"
+#include "freertos/event_groups.h"
+#else
+#include "FreeRTOS.h"
+#include "event_groups.h"
+#endif
+
 namespace tt {
 
-typedef void EventFlag;
+#define TT_API_LOCK_EVENT (1U << 0)
 
-/** Allocate EventFlag
- *
- * @return     pointer to EventFlag
+/**
+ * Wrapper for FreeRTOS xEventGroup.
  */
-EventFlag* event_flag_alloc();
-
-/** Deallocate EventFlag
- *
- * @param      instance  pointer to EventFlag
- */
-void event_flag_free(EventFlag* instance);
-
-/** Set flags
- *
- * @param      instance  pointer to EventFlag
- * @param[in]  flags     The flags
- *
- * @return     Resulting flags or error (TtStatus)
- */
-uint32_t event_flag_set(EventFlag* instance, uint32_t flags);
-
-/** Clear flags
- *
- * @param      instance  pointer to EventFlag
- * @param[in]  flags     The flags
- *
- * @return     Resulting flags or error (TtStatus)
- */
-uint32_t event_flag_clear(EventFlag* instance, uint32_t flags);
-
-/** Get flags
- *
- * @param      instance  pointer to EventFlag
- *
- * @return     Resulting flags
- */
-uint32_t event_flag_get(EventFlag* instance);
-
-/** Wait flags
- *
- * @param      instance  pointer to EventFlag
- * @param[in]  flags     The flags
- * @param[in]  options   The option flags
- * @param[in]  timeout   The timeout
- *
- * @return     Resulting flags or error (TtStatus)
- */
-uint32_t event_flag_wait(
-    EventFlag* instance,
-    uint32_t flags,
-    uint32_t options,
-    uint32_t timeout
-);
+class EventFlag {
+private:
+    EventGroupHandle_t handle;
+public:
+    EventFlag();
+    ~EventFlag();
+    uint32_t set(uint32_t flags) const;
+    uint32_t clear(uint32_t flags) const;
+    uint32_t get() const;
+    uint32_t wait(
+        uint32_t flags,
+        uint32_t options = TtFlagWaitAny,
+        uint32_t timeout = TtWaitForever
+    ) const;
+};
 
 } // namespace