Diff: ble/GattAttribute.h

Revision:

1161:515032db6feb

Parent:

1132:6362b7c2fdff

Child:

1179:4ab722f8dca0

--- a/ble/GattAttribute.h	Wed Apr 06 19:14:47 2016 +0100
+++ b/ble/GattAttribute.h	Wed Apr 06 19:14:49 2016 +0100
@@ -19,9 +19,20 @@
 
 #include "UUID.h"
 
+/**
+ * Instances of this class encapsulate the data that belongs to a Bluetooth Low
+ * Energy attribute.
+ */
 class GattAttribute {
 public:
+    /**
+     * Type for the handle or ID of the attribute in the ATT table. These are
+     * unique and are usually generated by the underlying BLE stack.
+     */
     typedef uint16_t Handle_t;
+    /**
+     * Define the value of an invalid attribute handle.
+     */
     static const Handle_t INVALID_HANDLE = 0x0000;
 
 public:
@@ -55,21 +66,103 @@
     }
 
 public:
-    Handle_t    getHandle(void)         const {return _handle;        }
-    const UUID &getUUID(void)           const {return _uuid;          }
-    uint16_t    getLength(void)         const {return _len;           }
-    uint16_t    getMaxLength(void)      const {return _lenMax;        }
-    uint16_t   *getLengthPtr(void)            {return &_len;          }
-    void        setHandle(Handle_t id)        {_handle = id;          }
-    uint8_t    *getValuePtr(void)             {return _valuePtr;      }
-    bool        hasVariableLength(void) const {return _hasVariableLen;}
+    /**
+     * Get the attribute's handle in the ATT table.
+     *
+     * @return The attribute's handle.
+     */
+    Handle_t getHandle(void) const {
+        return _handle;
+    }
+
+    /**
+     * The UUID of the characteristic that this attribute belongs to.
+     *
+     * @return The characteristic's UUID.
+     */
+    const UUID &getUUID(void) const {
+        return _uuid;
+    }
+
+    /**
+     * Get the current length of the attribute value.
+     *
+     * @return The current length of the attribute value.
+     */
+    uint16_t getLength(void) const {
+        return _len;
+    }
+
+    /**
+     * Get the maximum length of the attribute value.
+     *
+     * The maximum length of the attribute value.
+     */
+    uint16_t getMaxLength(void) const {
+        return _lenMax;
+    }
+
+    /**
+     * Get a pointer to the current length of the attribute value.
+     *
+     * @return A pointer to the current length of the attribute value.
+     */
+    uint16_t *getLengthPtr(void) {
+        return &_len;
+    }
+
+    /**
+     * Set the attribute handle.
+     *
+     * @param[in] id
+     *              The new attribute handle.
+     */
+    void setHandle(Handle_t id) {
+        _handle = id;
+    }
+
+    /**
+     * Get a pointer to the attribute value.
+     *
+     * @return A pointer to the attribute value.
+     */
+    uint8_t *getValuePtr(void) {
+        return _valuePtr;
+    }
+
+    /**
+     * Check whether the length of the attribute's value can change over time.
+     *
+     * @return true if the attribute has variable length, false otherwise.
+     */
+    bool hasVariableLength(void) const {
+        return _hasVariableLen;
+    }
 
 private:
-    UUID      _uuid;           /* Characteristic UUID. */
+    /**
+     * Characteristic's UUID.
+     */
+    UUID      _uuid;
+    /**
+     * Pointer to the attribute's value.
+     */
     uint8_t  *_valuePtr;
-    uint16_t  _lenMax;         /* Maximum length of the value. */
-    uint16_t  _len;            /* Current length of the value. */
+    /**
+     * Maximum length of the value pointed to by GattAttribute::_valuePtr.
+     */
+    uint16_t  _lenMax;
+    /**
+     * Current length of the value pointed to by GattAttribute::_valuePtr.
+     */
+    uint16_t  _len;
+    /**
+     * Whether the length of the value can change over time.
+     */
     bool      _hasVariableLen;
+    /**
+     * The attribute's handle in the ATT table.
+     */
     Handle_t  _handle;
 
 private:
@@ -78,4 +171,4 @@
     GattAttribute& operator=(const GattAttribute &);
 };
 
-#endif // ifndef __GATT_ATTRIBUTE_H__
\ No newline at end of file
+#endif /* ifndef __GATT_ATTRIBUTE_H__ */
\ No newline at end of file