info.hh

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/*
 * Copyright (c) 2003-2005 The Regents of The University of Michigan
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 */
 
#ifndef __BASE_STATS_INFO_HH__
#define __BASE_STATS_INFO_HH__
 
#include "base/stats/types.hh"
#include "base/flags.hh"
 
namespace Stats {
 
class Group;
 
typedef uint16_t FlagsType;
typedef ::Flags<FlagsType> Flags;
 
const FlagsType none =          0x0000;
const FlagsType init =          0x0001;
const FlagsType display =       0x0002;
const FlagsType total =         0x0010;
const FlagsType pdf =           0x0020;
const FlagsType cdf =           0x0040;
const FlagsType dist =          0x0080;
const FlagsType nozero =        0x0100;
const FlagsType nonan =         0x0200;
const FlagsType oneline =       0x0400;
 
const FlagsType __reserved =    init | display;
 
struct StorageParams;
struct Output;
 
class Info
{
  public:
    std::string name;
    static std::string separatorString;
    std::string desc;
    Flags flags;
    int precision;
    const Info *prereq;
    static int id_count;
    int id;
 
  public:
    const StorageParams *storageParams;
 
  public:
    Info();
    virtual ~Info();
 
    void setName(const std::string &name);
    void setName(const Group *parent, const std::string &name);
    void setSeparator(std::string _sep) { separatorString = _sep;}
 
    virtual bool check() const = 0;
    bool baseCheck() const;
 
    virtual void enable();
 
    virtual void prepare() = 0;
 
    virtual void reset() = 0;
 
    virtual bool zero() const = 0;
 
    virtual void visit(Output &visitor) = 0;
 
    static bool less(Info *stat1, Info *stat2);
};
 
class ScalarInfo : public Info
{
  public:
    virtual Counter value() const = 0;
    virtual Result result() const = 0;
    virtual Result total() const = 0;
};
 
class VectorInfo : public Info
{
  public:
    std::vector<std::string> subnames;
    std::vector<std::string> subdescs;
 
  public:
    void enable();
 
  public:
    virtual size_type size() const = 0;
    virtual const VCounter &value() const = 0;
    virtual const VResult &result() const = 0;
    virtual Result total() const = 0;
};
 
enum DistType { Deviation, Dist, Hist };
 
struct DistData
{
    DistType type;
    Counter min;
    Counter max;
    Counter bucket_size;
 
    Counter min_val;
    Counter max_val;
    Counter underflow;
    Counter overflow;
    VCounter cvec;
    Counter sum;
    Counter squares;
    Counter logs;
    Counter samples;
};
 
class DistInfo : public Info
{
  public:
    DistData data;
};
 
class VectorDistInfo : public Info
{
  public:
    std::vector<DistData> data;
 
    std::vector<std::string> subnames;
    std::vector<std::string> subdescs;
    void enable();
 
  protected:
    mutable VResult rvec;
 
  public:
    virtual size_type size() const = 0;
};
 
class Vector2dInfo : public Info
{
  public:
    std::vector<std::string> subnames;
    std::vector<std::string> subdescs;
    std::vector<std::string> y_subnames;
 
    size_type x;
    size_type y;
 
    mutable VCounter cvec;
 
    void enable();
 
    virtual Result total() const = 0;
};
 
class FormulaInfo : public VectorInfo
{
  public:
    virtual std::string str() const = 0;
};
 
struct SparseHistData
{
    MCounter cmap;
    Counter samples;
};
 
 
class SparseHistInfo : public Info
{
  public:
    SparseHistData data;
};
 
} // namespace Stats
 
#endif // __BASE_STATS_INFO_HH__