initial commit

lib/rtcvars/RTCVars.h

@@ -0,0 +1,51 @@
+#ifndef RTCVARS_H
+#define RTCVARS_H
+
+#include "Arduino.h"
+
+#ifndef RTC_MAX_VARIABLES
+#define RTC_MAX_VARIABLES 32
+#endif
+
+const static byte RTC_OK                   = 0;
+const static byte RTC_ERROR_MAGIC_BYTES    = 1;
+const static byte RTC_ERROR_SIZE           = 2;
+const static byte RTC_ERROR_READING_FAILED = 3;
+const static byte RTC_ERROR_CHECKSUM       = 4;
+const static byte RTC_ERROR_STATE_ID       = 5;
+const static byte RTC_ERROR_OTHER          = 99;
+const static byte RTC_STATE_ID_INVALID     = 255;
+
+class RTCVars {
+  public:
+    RTCVars();
+    bool registerVar(char * v);
+    bool registerVar(byte * v);
+    bool registerVar(bool * v);
+    bool registerVar(int * v);
+    bool registerVar(long * v);
+    bool registerVar(float * v);
+    void debugOutputRTCVars();
+    bool saveToRTC();
+    bool loadFromRTC();
+    int  getFreeRTCMem();
+    int  getFreeRTCVars();
+    byte getStateID();
+    byte getStateIDFromRTC();
+    void setStateID(byte new_state_id);
+    byte getReadError();
+
+  private:
+    byte       _state_id;
+    byte       _last_read_state_id;
+    byte       _last_read_status;
+    int        _state_size;
+    int        _state_variables_counter;
+    uintptr_t  _state_variables_ptr[RTC_MAX_VARIABLES];
+    byte       _state_variables_type[RTC_MAX_VARIABLES];
+    const byte _state_variable_size[7] = {0, sizeof(int), sizeof(long), sizeof(float), sizeof(byte), sizeof(char), sizeof(bool)};
+    bool       _checkAndReserve(uintptr_t v, byte type_of_var);
+    bool       _checkValidRTCData();
+};
+
+#endif