mirror of
https://github.com/mangosfour/server.git
synced 2025-12-12 01:37:00 +00:00
97 lines
2.2 KiB
C++
97 lines
2.2 KiB
C++
// -*- C++ -*-
|
|
|
|
//=============================================================================
|
|
/**
|
|
* @file Sample_History.h
|
|
*
|
|
* $Id: Sample_History.h 95747 2012-05-13 17:14:12Z johnnyw $
|
|
*
|
|
* @author Carlos O'Ryan <coryan@uci.edu>
|
|
*/
|
|
//=============================================================================
|
|
|
|
|
|
#ifndef ACE_SAMPLE_HISTORY_H
|
|
#define ACE_SAMPLE_HISTORY_H
|
|
#include /**/ "ace/pre.h"
|
|
|
|
#include /**/ "ace/config-all.h"
|
|
#include "ace/Basic_Types.h"
|
|
|
|
#if !defined (ACE_LACKS_PRAGMA_ONCE)
|
|
# pragma once
|
|
#endif /* ACE_LACKS_PRAGMA_ONCE */
|
|
|
|
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
|
|
|
|
class ACE_Basic_Stats;
|
|
|
|
/// Save multiple samples in an array
|
|
/**
|
|
* Save multiple samples (usually latency numbers), into an array, and
|
|
* later print them in several formats.
|
|
*/
|
|
class ACE_Export ACE_Sample_History
|
|
{
|
|
public:
|
|
#if !defined (ACE_WIN32)
|
|
typedef ACE_UINT32 scale_factor_type;
|
|
#else
|
|
typedef ACE_UINT64 scale_factor_type;
|
|
#endif
|
|
|
|
/// Constructor
|
|
/**
|
|
* The number of samples is pre-allocated, and cannot changes once
|
|
* the class is initialized.
|
|
*/
|
|
ACE_Sample_History (size_t max_samples);
|
|
|
|
/// Destructor
|
|
~ACE_Sample_History (void);
|
|
|
|
/// Record one sample.
|
|
/**
|
|
* Return 0 on success, -1 if the sample could not be stored
|
|
*/
|
|
int sample (ACE_UINT64 value);
|
|
|
|
/// Returns the maximum number of samples
|
|
size_t max_samples (void) const;
|
|
|
|
/// Returns the current number of samples
|
|
size_t sample_count (void) const;
|
|
|
|
/// Dump all the samples
|
|
/**
|
|
* Prints out all the samples, using @a msg as a prefix for each
|
|
* message.
|
|
*/
|
|
void dump_samples (const ACE_TCHAR *msg,
|
|
scale_factor_type scale_factor) const;
|
|
|
|
/// Collect the summary for all the samples
|
|
void collect_basic_stats (ACE_Basic_Stats &) const;
|
|
|
|
/// Get a sample
|
|
ACE_UINT64 get_sample (size_t i) const;
|
|
|
|
private:
|
|
/// The maximum number of samples
|
|
size_t max_samples_;
|
|
|
|
/// The current number of samples
|
|
size_t sample_count_;
|
|
|
|
/// The samples
|
|
ACE_UINT64 *samples_;
|
|
};
|
|
|
|
ACE_END_VERSIONED_NAMESPACE_DECL
|
|
|
|
#if defined (__ACE_INLINE__)
|
|
#include "ace/Sample_History.inl"
|
|
#endif /* __ACE_INLINE__ */
|
|
|
|
#include /**/ "ace/post.h"
|
|
#endif /* ACE_SAMPLE_HISTORY_H */
|