How to sleep a C++ Boost Thread

Question

Seems impossible to sleep a thread using boost::thread. Method sleep requires a system_time but how can I build it?

Looking inside libraries doesn't really help much...

Basically I have a thread inside the function that I pass to this thread as entry point, I would like to call something like

 boost::this_thread::sleep 

or something, how to do this?

Thank you

Answer 1

Depending on your version of Boost:

Either...

#include <boost/chrono.hpp> #include <boost/thread/thread.hpp>   boost::this_thread::sleep_for(boost::chrono::milliseconds(100)); 

Or...

#include <boost/date_time/posix_time/posix_time.hpp> #include <boost/thread/thread.hpp>   boost::this_thread::sleep(boost::posix_time::milliseconds(100)); 

You can also use microseconds, seconds, minutes, hours and maybe some others, I'm not sure.

Answer 2

From another post, I learned boost::this_thread::sleep is deprecated for Boost v1.5.3: http://www.boost.org/doc/libs/1_53_0/doc/html/thread/thread_management.html

Instead, try

void sleep_for(const chrono::duration<Rep, Period>& rel_time); 

e.g.

boost::this_thread::sleep_for(boost::chrono::seconds(60)); 

Or maybe try

void sleep_until(const chrono::time_point<Clock, Duration>& abs_time); 

I was using Boost v1.53 with the deprecated sleep function, and it aperiodically crashed the program. When I changed calls to the sleep function to calls to the sleep_for function, the program stopped crashing.