text: // The MIT License (MIT)
  
  // Copyright (c) 2013 lailongwei<lailongwei@126.com>
  // 
  // Permission is hereby granted, free of charge, to any person obtaining a copy of 
  // this software and associated documentation files (the "Software"), to deal in 
  // the Software without restriction, including without limitation the rights to 
  // use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of 
  // the Software, and to permit persons to whom the Software is furnished to do so, 
  // subject to the following conditions:
  // 
  // The above copyright notice and this permission notice shall be included in all 
  // copies or substantial portions of the Software.
  // 
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 
  // FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 
  // COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 
  // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
  // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  #ifndef __LLBC_CORE_SAMPLER_COUNT_SAMPLER_H__
  #define __LLBC_CORE_SAMPLER_COUNT_SAMPLER_H__
  
  #include "llbc/common/Common.h"
  
  #include "llbc/core/sampler/BaseSampler.h"
  
  __LLBC_NS_BEGIN
  
  /**
   * \brief The count type sampler class encapsulation.
   */
  class LLBC_EXPORT LLBC_CountSampler : public LLBC_BaseSampler
  {
      typedef LLBC_BaseSampler _Base;
  
  public:
      LLBC_CountSampler();
      virtual ~LLBC_CountSampler();
  
  public:
      /**
       * Get sampler type.
       * @return int = sampler type.
       */
       virtual int GetType() const;
  
      /**
       * Reset sampler.
       */
      virtual void Reset();
  
  public:
      /**
       * Sampling function.
       * @param[in] value   - increment value.
        *@param[in] appData - current time sampling value.
       * @return int - return 0 if success, otherwise return -1.
       */
      virtual int Sampling(sint64 value, void *appData = NULL);
  
  public:
      /**
       * Get total sampling times.
       * @return uint64 - total sampling times.
       */
      uint64 GetTotalSamplingTimes() const;
  
      /**
       * Get total sampling value.
       * @return sint64 - total sampling value.
       */
      sint64 GetTotalSamplingValue() const;
  
      /**
       * Get average sampling value.
       * @return double - average sampling value.
       */
      double GetAverageSamplingValue() const;
  
  private:
      uint64 _totalSamplingTimes;
      sint64 _totalSamplingValue;
  };
  
  __LLBC_NS_END
  
  #endif // !__LLBC_CORE_SAMPLER_COUNT_SAMPLER_H__
  