jrtlib 时间测试

Posted 2021-01-18 hgstudy

代码：

#include "rtptimeutilities.h"
#include <iostream>
#include <stdio.h>

using namespace std;
using namespace jrtplib;

int main(void)
{
	double times[] = { 1.2, -2.3, 0, 3.999999 };

	for (int i = 0 ; i < sizeof(times)/sizeof(double) ; i++)
	{
		RTPTime t(times[i]);

		cout << "Double:       " << times[i] << endl;
		cout << "Seconds:      " << t.GetSeconds() << endl;
		cout << "Microseconds: " << t.GetMicroSeconds() << endl;
		cout << endl;
	}

	int32_t secsAndMuSecs[][2] = { { 1, 3000}, {-2, 200}, {0, 0}, {-2, 999999} };
	for (int i = 0 ; i < sizeof(secsAndMuSecs)/(2*sizeof(int32_t)) ; i++)
	{
		RTPTime t(secsAndMuSecs[i][0], secsAndMuSecs[i][1]);

		cout << "Input Seconds:       " << secsAndMuSecs[i][0] << endl;
		cout << "Input Microseconds:  " << secsAndMuSecs[i][1] << endl;
		cout << "Output Seconds:      " << t.GetSeconds() << endl;
		cout << "Output Microseconds: " << t.GetMicroSeconds() << endl;
		cout << "Output Double:       " << t.GetDouble() << endl;
		cout << endl;
	}

	for (int i = 0 ; i < 10 ; i++)
	{
		RTPTime now = RTPTime::CurrentTime();
		fprintf(stderr, "%10u.%06d
", (uint32_t)now.GetSeconds(), now.GetMicroSeconds());
		RTPTime::Wait(RTPTime(1));
	}
	return 0;
}

　　运行结果：

/timetest
Double: 1.2
Seconds: 1
Microseconds: 200000

Double: -2.3
Seconds: -2
Microseconds: 300000

Double: 0
Seconds: 0
Microseconds: 0

Double: 4
Seconds: 3
Microseconds: 999999

Input Seconds: 1
Input Microseconds: 3000
Output Seconds: 1
Output Microseconds: 3000
Output Double: 1.003

Input Seconds: -2
Input Microseconds: 200
Output Seconds: -2
Output Microseconds: 200
Output Double: -2.0002

Input Seconds: 0
Input Microseconds: 0
Output Seconds: 0
Output Microseconds: 0
Output Double: 0

Input Seconds: -2
Input Microseconds: 999999
Output Seconds: -2
Output Microseconds: 999999
Output Double: -3

1541561350.472532
1541561351.473606
1541561352.474346
1541561353.474663
1541561354.475759
1541561355.476676
1541561356.477701
1541561357.478725
1541561358.479587
1541561359.480622

有关函数的源码：https://jrtplib.readthedocs.io/en/v3.9.0/classjrtplib_1_1RTPTime.html#a5f8e07b74d6b409adea10c8796872192

double GetDouble() const                                                                                { return (((double)sec)+(((double)microsec)/1000000.0)); }

inline RTPTime::RTPTime(double t)
   {
           sec = (uint32_t)t;
   
           double t2 = t-((double)sec);
           t2 *= 1000000.0;
           microsec = (uint32_t)t2;
   }

 RTPTime(uint32_t seconds, uint32_t microseconds)                                                { sec = seconds; microsec = microseconds; }
   
           uint32_t GetSeconds() const                                                                             { return sec; }
   
           uint32_t GetMicroSeconds() const                                                                { return microsec; }