include/memMeter.h

   1 #ifndef _MEM_METER_H_
   2 #define _MEM_METER_H_
   3
   4 /* object to track per-action memory usage (e.g. #idle objects) */
   5 class MemMeter
   6 {
   7 public:
   8     MemMeter() : level(0), hwater_level(0), hwater_stamp(0) {}
   9     ssize_t level;              /* current level (count or volume) */
  10     ssize_t hwater_level;       /* high water mark */
  11     time_t hwater_stamp;        /* timestamp of last high water mark change */
  12 };
  13
  14 #define memMeterSyncHWater(m)  { (m).hwater_level = (m).level; (m).hwater_stamp = squid_curtime ? squid_curtime : time(NULL); }
  15 #define memMeterCheckHWater(m) { if ((m).hwater_level < (m).level) memMeterSyncHWater((m)); }
  16 #define memMeterInc(m) { (m).level++; memMeterCheckHWater(m); }
  17 #define memMeterDec(m) { (m).level--; }
  18 #define memMeterAdd(m, sz) { (m).level += (sz); memMeterCheckHWater(m); }
  19 #define memMeterDel(m, sz) { (m).level -= (sz); }
  20
  21 #endif /* _MEM_METER_H_ */