Ticket #4576: TimerTest (snooze_until, 1 thread).cpp

File TimerTest (snooze_until, 1 thread).cpp, 1.1 KB (added by X512, 2 years ago)
Line 
1#include <Application.h>
2#include <MessageRunner.h>
3#include <stdio.h>
4#include <stdlib.h>
5#include <OS.h>
6
7#include <private/shared/AutoDeleter.h>
8
9enum {
10 second = 1000000,
11};
12
13enum {
14 timerMsg = 1,
15};
16
17enum {
18 maxDelay = second/10,
19 minDelay = 1,
20 stepCnt = 5000,
21};
22
23class TestApplication: public BApplication
24{
25private:
26 bigtime_t fScheduledTime;
27
28 int32 fCurStep;
29 bigtime_t fDelays[stepCnt];
30 bigtime_t fStat[stepCnt];
31
32public:
33 TestApplication(): BApplication("application/x-vnd.test-app"),
34 fCurStep(0)
35 {
36 for (int32 i = 0; i < stepCnt; i++) {
37 fDelays[i] = minDelay + (maxDelay - minDelay)*i/(stepCnt - 1);
38 }
39 }
40
41 void ReadyToRun()
42 {
43 while (fCurStep < stepCnt) {
44 {
45 bigtime_t now = system_time();
46 fScheduledTime = now + fDelays[fCurStep];
47 snooze_until(fScheduledTime, B_SYSTEM_TIMEBASE);
48 }
49 {
50 bigtime_t now = system_time();
51 fStat[fCurStep] = now - fScheduledTime;
52 }
53 fCurStep++;
54 }
55 for (int32 i = 0; i < stepCnt; i++) {
56 printf("%.06E %.06E\n", double(fDelays[i])/second, double(fStat[i])/second);
57 }
58 PostMessage(B_QUIT_REQUESTED);
59 }
60
61};
62
63
64int main()
65{
66 TestApplication app;
67 app.Run();
68 return 0;
69}