Updated logging, binary search to find starting point.

include/sta/utils/logger.hpp

@@ -20,14 +20,15 @@ namespace sta
          * @param endSector The index of the end sector (1 LSB = 4096 bytes).
          */
         Logger(W25Qxx * flash, uint32_t startSector, uint32_t endSector);
-
+        
         /**
          * @brief Write a new data point to the flash chip. 
          * @note If the total capacity of this logger was exceeded, it restarts at the first sector, overwriting its data.
          * 
-         * @param data The data to write to the flash chip.
+         * @param data The data to write to the flash chip. 
+         * @return true if successful, false if the segment end was reached.
          */
-        void write(T data);
+        bool write(T data);
 
         /**
          * @brief Clear the flash memory used by the logger.
@@ -40,7 +41,7 @@ namespace sta
          * 
          * @return size_t The number of data points.
          */
-        size_t occupied();
+        size_t count();
 
         /**
          * @brief Get the number of data points that can be written to the logger before an overflow occurs.
@@ -54,16 +55,18 @@ namespace sta
          * 
          * @return size_t The number of data points.
          */
-        size_t length();
+        size_t capacity();
 
         /**
          * @brief Allows reading a single data point from the segment.
          * 
          * @param idx The index of the segement.
-         * @return const T& The read data value.
+         * @return T The read data value.
          */
         T operator[](std::size_t idx);
     private:
+        void findLast();
+
         W25Qxx * flash_;
         uint32_t start_;
         uint32_t end_;