id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12519	boost::thread::try_join_for does not return after timeout	mweb@…	viboes	"If we use BOOST_THREAD_HAS_CONDATTR_SET_CLOCK_MONOTONIC try_join_for does not abort after the given timeout anymore. If I remove the define it works again.

We use the define to be able to use sleep_for while changing the system time. (See #6787)

To Reproduce:

{{{

#define BOOST_THREAD_HAS_CONDATTR_SET_CLOCK_MONOTONIC

#include <iostream>
#include <boost/thread.hpp>

void test_func()
{
    boost::this_thread::sleep_for(boost::chrono::milliseconds(1500));
}

int main()
{
    boost::thread t(test_func);

    if (!t.try_join_for(boost::chrono::milliseconds(50))) {
        std::cout << ""OK"" << std::endl;
    } else {
        std::cout << ""FAILED"" << std::endl;
    }

    if (t.try_join_for(boost::chrono::milliseconds(2000))) {
        std::cout << ""OK"" << std::endl;
    } else {
        std::cout << ""FAILED"" << std::endl;
    }
}

}}}

If the define is available the first try_join_for waits till the thread is finished, the expected behavior would be that the first try_join_for would return before the thread is finished."	Patches	closed	Boost 1.65.0	thread	Boost 1.61.0	Problem	fixed