/*********************************************************************
 *
 * $Id: yocto_voc.h 19606 2015-03-05 10:35:57Z seb $
 *
 * Declares yFindVoc(), the high-level API for Voc functions
 *
 * - - - - - - - - - License information: - - - - - - - - - 
 *
 *  Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland.
 *
 *  Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual
 *  non-exclusive license to use, modify, copy and integrate this
 *  file into your software for the sole purpose of interfacing
 *  with Yoctopuce products.
 *
 *  You may reproduce and distribute copies of this file in
 *  source or object form, as long as the sole purpose of this
 *  code is to interface with Yoctopuce products. You must retain
 *  this notice in the distributed source file.
 *
 *  You should refer to Yoctopuce General Terms and Conditions
 *  for additional information regarding your rights and
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 *
 *  THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
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 *  WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
 *  EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
 *  INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA,
 *  COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR 
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#ifndef YOCTO_VOC_H
#define YOCTO_VOC_H

#include "yocto_api.h"
#include <cfloat>
#include <cmath>
#include <map>

//--- (YVoc return codes)
//--- (end of YVoc return codes)
//--- (YVoc definitions)
class YVoc; // forward declaration

typedef void (*YVocValueCallback)(YVoc *func, const string& functionValue);
class YMeasure; // forward declaration
typedef void (*YVocTimedReportCallback)(YVoc *func, YMeasure measure);
//--- (end of YVoc definitions)

//--- (YVoc declaration)
/**
 * YVoc Class: Voc function interface
 *
 * The Yoctopuce class YVoc allows you to read and configure Yoctopuce Volatile Organic
 * Compound sensors. It inherits from YSensor class the core functions to read measurements,
 * register callback functions, access to the autonomous datalogger.
 */
class YOCTO_CLASS_EXPORT YVoc: public YSensor {
#ifdef __BORLANDC__
#pragma option push -w-8022
#endif
//--- (end of YVoc declaration)
protected:
    //--- (YVoc attributes)
    // Attributes (function value cache)
    YVocValueCallback _valueCallbackVoc;
    YVocTimedReportCallback _timedReportCallbackVoc;

    friend YVoc *yFindVoc(const string& func);
    friend YVoc *yFirstVoc(void);

    // Constructor is protected, use yFindVoc factory function to instantiate
    YVoc(const string& func);
    //--- (end of YVoc attributes)

public:
    ~YVoc();
    //--- (YVoc accessors declaration)


    /**
     * Retrieves a Volatile Organic Compound sensor for a given identifier.
     * The identifier can be specified using several formats:
     * <ul>
     * <li>FunctionLogicalName</li>
     * <li>ModuleSerialNumber.FunctionIdentifier</li>
     * <li>ModuleSerialNumber.FunctionLogicalName</li>
     * <li>ModuleLogicalName.FunctionIdentifier</li>
     * <li>ModuleLogicalName.FunctionLogicalName</li>
     * </ul>
     *
     * This function does not require that the Volatile Organic Compound sensor is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method YVoc.isOnline() to test if the Volatile Organic Compound sensor is
     * indeed online at a given time. In case of ambiguity when looking for
     * a Volatile Organic Compound sensor by logical name, no error is notified: the first instance
     * found is returned. The search is performed first by hardware name,
     * then by logical name.
     *
     * @param func : a string that uniquely characterizes the Volatile Organic Compound sensor
     *
     * @return a YVoc object allowing you to drive the Volatile Organic Compound sensor.
     */
    static YVoc*        FindVoc(string func);

    /**
     * Registers the callback function that is invoked on every change of advertised value.
     * The callback is invoked only during the execution of ySleep or yHandleEvents.
     * This provides control over the time when the callback is triggered. For good responsiveness, remember to call
     * one of these two functions periodically. To unregister a callback, pass a null pointer as argument.
     *
     * @param callback : the callback function to call, or a null pointer. The callback function should take two
     *         arguments: the function object of which the value has changed, and the character string describing
     *         the new advertised value.
     * @noreturn
     */
    virtual int         registerValueCallback(YVocValueCallback callback);
    using YSensor::registerValueCallback;

    virtual int         _invokeValueCallback(string value);

    /**
     * Registers the callback function that is invoked on every periodic timed notification.
     * The callback is invoked only during the execution of ySleep or yHandleEvents.
     * This provides control over the time when the callback is triggered. For good responsiveness, remember to call
     * one of these two functions periodically. To unregister a callback, pass a null pointer as argument.
     *
     * @param callback : the callback function to call, or a null pointer. The callback function should take two
     *         arguments: the function object of which the value has changed, and an YMeasure object describing
     *         the new advertised value.
     * @noreturn
     */
    virtual int         registerTimedReportCallback(YVocTimedReportCallback callback);
    using YSensor::registerTimedReportCallback;

    virtual int         _invokeTimedReportCallback(YMeasure value);


    inline static YVoc* Find(string func)
    { return YVoc::FindVoc(func); }

    /**
     * Continues the enumeration of Volatile Organic Compound sensors started using yFirstVoc().
     *
     * @return a pointer to a YVoc object, corresponding to
     *         a Volatile Organic Compound sensor currently online, or a null pointer
     *         if there are no more Volatile Organic Compound sensors to enumerate.
     */
           YVoc            *nextVoc(void);
    inline YVoc            *next(void)
    { return this->nextVoc();}

    /**
     * Starts the enumeration of Volatile Organic Compound sensors currently accessible.
     * Use the method YVoc.nextVoc() to iterate on
     * next Volatile Organic Compound sensors.
     *
     * @return a pointer to a YVoc object, corresponding to
     *         the first Volatile Organic Compound sensor currently online, or a null pointer
     *         if there are none.
     */
           static YVoc* FirstVoc(void);
    inline static YVoc* First(void)
    { return YVoc::FirstVoc();}
#ifdef __BORLANDC__
#pragma option pop
#endif
    //--- (end of YVoc accessors declaration)
};

//--- (Voc functions declaration)

/**
 * Retrieves a Volatile Organic Compound sensor for a given identifier.
 * The identifier can be specified using several formats:
 * <ul>
 * <li>FunctionLogicalName</li>
 * <li>ModuleSerialNumber.FunctionIdentifier</li>
 * <li>ModuleSerialNumber.FunctionLogicalName</li>
 * <li>ModuleLogicalName.FunctionIdentifier</li>
 * <li>ModuleLogicalName.FunctionLogicalName</li>
 * </ul>
 *
 * This function does not require that the Volatile Organic Compound sensor is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YVoc.isOnline() to test if the Volatile Organic Compound sensor is
 * indeed online at a given time. In case of ambiguity when looking for
 * a Volatile Organic Compound sensor by logical name, no error is notified: the first instance
 * found is returned. The search is performed first by hardware name,
 * then by logical name.
 *
 * @param func : a string that uniquely characterizes the Volatile Organic Compound sensor
 *
 * @return a YVoc object allowing you to drive the Volatile Organic Compound sensor.
 */
inline YVoc* yFindVoc(const string& func)
{ return YVoc::FindVoc(func);}
/**
 * Starts the enumeration of Volatile Organic Compound sensors currently accessible.
 * Use the method YVoc.nextVoc() to iterate on
 * next Volatile Organic Compound sensors.
 *
 * @return a pointer to a YVoc object, corresponding to
 *         the first Volatile Organic Compound sensor currently online, or a null pointer
 *         if there are none.
 */
inline YVoc* yFirstVoc(void)
{ return YVoc::FirstVoc();}

//--- (end of Voc functions declaration)

#endif
