MemoryStats.hpp

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/******************************************************************************/
/* REXX Kernel                                            RexxMemorystats.hpp */
/*                                                                            */
/* Primitive DeadObject class definitions                                     */
/*                                                                            */
/******************************************************************************/
 
#ifndef Included_MemoryStats
#define Included_MemoryStats
 
#include "ClassTypeCodes.h"
 
class MemoryStats;
/* a class for collecting object statistics */
class ObjectStats {
 
  public:
    inline ObjectStats() : count(0), size(0) {}
 
    inline void clear() { count = 0; size = 0; }
    inline void logObject(RexxObject *obj) { count++; size += obj->getObjectSize(); }
    void   printStats(int type);
 
  protected:
 
    size_t count;
    size_t size;
};
 
/* a class for collecting segment set statistics */
class SegmentStats {
  friend class MemoryStats;
  friend class MemorySegmentSet;
 
  public:
    SegmentStats(const char *id) :
        count(0), largestSegment(0), smallestSegment(0),
        totalBytes(0), liveBytes(0), deadBytes(0),
        liveObjects(0), deadObjects(0),
        name(id) { }
 
    void    clear();
    void    recordObject(MemoryStats *memStats, char *obj);
    void    printStats();
 
  protected:
 
    size_t count;
    size_t largestSegment;
    size_t smallestSegment;
 
    size_t totalBytes;
    size_t liveBytes;
    size_t deadBytes;
    size_t liveObjects;
    size_t deadObjects;
    const char *name;
};
 
class MemoryStats {
  public:
    inline MemoryStats() :
        normalStats("Normal allocation segment set"),
        largeStats("Large allocation segment pool") {}
 
    void logObject(RexxObject *obj);
    void printSavedImageStats();
    void printMemoryStats();
    void clear();
 
    SegmentStats normalStats;
    SegmentStats largeStats;
 
    ObjectStats objectStats[T_Last_Class_Type + 1];
};
 
#endif