File content as of revision 2:6f76d6160601:

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#ifndef __BLE_CURRENTTIMESERVICE_H__
#define __BLE_CURRENTTIMESERVICE_H__

#include <time.h>
#include "Characteristic.h"
#include "CurrentTimeChar.h"
#include "ReferenceTimeInfoChar.h"
#include "LocalTimeInfoChar.h"

/**
 * @class   CurrentTimeService
 * @brief   BLE Current Time service.
 * @details Standard service for communicating time information.
 */
class CurrentTimeService
{
public:

    /**
     * @brief   CurrentTimeSerivce constructor.
     * @param   ble Reference to BLE device.
     */
    CurrentTimeService(BLEDevice &_ble) :
        ble(_ble),
        currentTime(),
        localTimeInfo(),
        referenceTimeInfo()
    {

        GattCharacteristic *currentTimeChars[] = {currentTime.getChar(), localTimeInfo.getChar(),
            referenceTimeInfo.getChar()};

        GattService currentTimeService(GattService::UUID_CURRENT_TIME_SERVICE, currentTimeChars, 
            sizeof(currentTimeChars) / sizeof(GattCharacteristic *));

        ble.gattServer().addService(currentTimeService);
        ble.gattServer().onDataWritten(this, &CurrentTimeService::onDataWritten);
        ble.gattServer().onDataRead(this, &CurrentTimeService::onDataRead);
    }

    // Update the value in the current time characteristic from RTC
    void updateCurrentTimeValue()
    {
        currentTime.update();
        ble.gattServer().write(currentTime.getChar()->getValueAttribute().getHandle(),
                               currentTime.getBytes(), currentTime.getNumBytes());
    }

private:

    void onDataWritten(const GattWriteCallbackParams *params)
    {

        // Check to see which value is being written
        if (params->handle == currentTime.getChar()->getValueAttribute().
            getHandle()) {

            // Update RTC from CurrentTimeChar
            currentTime.update_rtc();

            // Reset the time since update
            referenceTimeInfo.resetUpdateTime();
        }
    }

    void onDataRead(const GattReadCallbackParams *eventDataP)
    {
        if (eventDataP->handle == currentTime.getChar()->getValueAttribute().getHandle()) {
            // Update the characteristic value with the rtc
            currentTime.update();

        } else if (eventDataP->handle == referenceTimeInfo.getChar()->getValueAttribute().getHandle()) {
            // Update time since update
            referenceTimeInfo.updateUpdateTime();
        }
    }

    BLEDevice               &ble;
    CurrentTimeChar         currentTime;
    LocalTimeInfoChar       localTimeInfo;
    ReferenceTimeInfoChar   referenceTimeInfo;
};

#endif /* #ifndef __BLE_CURRENTTIMESERVICE_H__*/