PerSecondCounter - thread-safe [1006530]

< > BotCompany Repo | #1006530 // PerSecondCounter - thread-safe

JavaX fragment (include)

sclass PerSecondCounter {
  double interval = 1; // seconds
  long time = sysNow(), count, lastCount, lastDiff;
  
  *() {}
  *(double *interval) {}
  
  void inc() { inc(1); }
  synchronized void inc(int n) { count += n; }
  
  synchronized double getLast() {
    double fps = lastDiff == 0 ? 0 : lastCount*1000.0/lastDiff;
    update(sysNow()-time);
    ret fps;
  }
  
  synchronized double get() {
    long diff = sysNow()-time;
    double fps = (count+lastCount)*1000.0/(diff+lastDiff);
    update(diff);
    ret fps;
  }
  
  void update(long diff) {
    if (diff >= toMS(interval)) {
      lastDiff = diff;
      lastCount = count;
      time = sysNow();
      count = 0;
    }
  }
}

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Snippet ID:

#1006530

Snippet name:

PerSecondCounter - thread-safe

Eternal ID of this version:

#1006530/7

Text MD5:

fa8c75a4cc9b7ab6af6b78c7ac9d38f6

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2018-06-06 23:21:06

Source code size:

721 bytes / 32 lines

Pitched / IR pitched:

No / No

Views / Downloads:

805 / 1453

Version history:

6 change(s)

Referenced in:

[show references]

1	sclass PerSecondCounter {
2	double interval = 1; // seconds
3	long time = sysNow(), count, lastCount, lastDiff;
4
5	*() {}
6	(double interval) {}
7
8	void inc() { inc(1); }
9	synchronized void inc(int n) { count += n; }
10
11	synchronized double getLast() {
12	double fps = lastDiff == 0 ? 0 : lastCount*1000.0/lastDiff;
13	update(sysNow()-time);
14	ret fps;
15	}
16
17	synchronized double get() {
18	long diff = sysNow()-time;
19	double fps = (count+lastCount)*1000.0/(diff+lastDiff);
20	update(diff);
21	ret fps;
22	}
23
24	void update(long diff) {
25	if (diff >= toMS(interval)) {
26	lastDiff = diff;
27	lastCount = count;
28	time = sysNow();
29	count = 0;
30	}
31	}
32	}