C++ based on the implementation of thread sleep code
- 2020-04-02 02:46:27
- OfStack
In this paper, the example of C++ based on the implementation of thread sleep code, to share for your reference. Specific methods are as follows:
The Linux platform example is as follows:
#include <stdio.h>
#include <pthread.h>
#include <time.h>
void m_threadSleep(int sec,int nsec)
{
struct timespec sleepTime;
struct timespec returnTime;
sleepTime.tv_sec = sec;
sleepTime.tv_nsec = nsec;
nanosleep(&sleepTime, &returnTime);
}
void test1()
{
m_threadSleep(1,0);
printf("I'm thread1 ...rn");
}
void test2()
{
m_threadSleep(2,0);
printf("I'm thread2 ...rn");
}
int main()
{
pthread_t thread1,thread2;
void *result;
time_t tbegin,tend;
tbegin = time(NULL);
pthread_create(&thread1,NULL,(void*)&test1,NULL);
pthread_create(&thread2,NULL,(void*)&test2,NULL);
pthread_join(thread1,&result);
pthread_join(thread2,&result);
tend = time(NULL);
printf("%drn",tend-tbegin);
return 0;
}
The compiled code is as follows:
gcc thread1.c -o thread1 -lpthread
An example of the boost library implementation is as follows:
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/thread/thread.hpp>
#include <iostream>
boost::xtime getSleepTime(int sec,int nsec)
{
boost::xtime t;
boost::xtime_get(&t, boost::TIME_UTC);
t.sec += sec;
t.nsec += nsec;
return t;
}
void test1()
{
boost::this_thread::sleep(getSleepTime(1,500));
std::cout <<"I'm thread1 !"<< std::endl;
}
void test2()
{
boost::this_thread::sleep(getSleepTime(3,500));
std::cout <<"I'm thread2 !"<< std::endl;
}
int main(int argc, char* argv[])
{
boost::thread thrd1(&test1);
boost::thread thrd2(&test2);
std::time_t t_begin,t_end;
t_begin = time(NULL);
thrd1.join();
thrd2.join();
t_end = time(NULL);
std::cout<<t_end-t_begin<<std::endl;
return 0;
}
Compile the command as follows:
g++ boost_thread1.cpp -o boost_thread1 -lboost_thread-mt
Hope that the article described in the C++ programming to help you.