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/* -*- C++ -*- */
//=============================================================================
/**
* @file Task_Stats.h
*
* $Id$
*
* Utility Stats class that maintains the readings.
*
* @author Pradeep Gore <pradeep@cs.wustl.edu>
*/
//=============================================================================
#ifndef TASK_STATS_H
#define TASK_STATS_H
#include "ace/OS_NS_time.h"
#include "ace/Singleton.h"
#include "tao/orbconf.h"
#include "tao/debug.h"
#include "Kokyu_dsrt_schedulers_export.h"
/**
* @class Base_Time
*
* @brief maintains readings recorded by tasks.
*
*/
class Kokyu_DSRT_Schedulers_Export Base_Time
{
public:
Base_Time (void);
ACE_hrtime_t base_time_;
};
typedef ACE_Singleton<Base_Time, TAO_SYNCH_MUTEX> BASE_TIME;
/**
* @class Task_Stats
*
* @brief maintains readings recorded by tasks.
*
*/
class Kokyu_DSRT_Schedulers_Export Task_Stats
{
public:
/// Constructor
Task_Stats (void);
/// Destructor
~Task_Stats (void);
/// Init
int init (size_t max_samples);
/// Set the base time value.
void base_time (ACE_hrtime_t time);
/// Set the end time value.
void end_time (ACE_hrtime_t time);
/// Record a sample
int sample (ACE_UINT32 thr_run_time, int thr_count);
void dump_samples (const char *file_name, const char *msg,
ACE_UINT32 scale_factor);
protected:
void dump_latency_stats (char *out_msg, ACE_UINT32 sf);
/// Base and end times
ACE_hrtime_t base_time_;
ACE_hrtime_t end_time_;
/// The maximum number of samples
ACE_UINT32 max_samples_;
/// The number of samples
ACE_UINT32 samples_count_;
/// The samples : the time of execution. and the recorded exec. time .
ACE_UINT32 *thr_run_time_;
int *thr_count_;
/// The minimum value
ACE_UINT64 exec_time_min_;
/// The number of the sample that had the minimum value
ACE_UINT32 exec_time_min_at_;
/// The maximum value
ACE_UINT64 exec_time_max_;
/// The number of the sample that had the maximum value
ACE_UINT32 exec_time_max_at_;
/// The sum of all the values
ACE_UINT64 sum_;
/// The sum of the square of all the values
ACE_UINT64 sum2_;
};
typedef ACE_Singleton<Task_Stats, TAO_SYNCH_MUTEX> TASK_STATS;
#if defined (__ACE_INLINE__)
#include "Task_Stats.inl"
#endif /* __ACE_INLINE__ */
#endif /* TASK_STATS_H */
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