id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13599	condition_variable::timed_wait never returns	steven.cook@…	viboes	"boost::condition_variable::timed_wait never returns if compiled with -DBOOST_THREAD_HAS_CONDATTR_SET_CLOCK_MONOTONIC.

this_thread::sleep and thread::timed_join exhibit the same problem, but both these functions are documented as deprecated. However condition_variable::timed_wait is not documented as deprecated.

This can be worked around by using condition_variable::wait_for.

The following simple test program demonstrates the problem in that it hangs forever. Removing the #define makes it return after one second.

{{{
#define BOOST_THREAD_HAS_CONDATTR_SET_CLOCK_MONOTONIC

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

int main( int argc, char* argv[] )
{
    boost::condition_variable cv;
    boost::mutex m;
    boost::mutex::scoped_lock lock( m );

    cv.timed_wait( lock, boost::posix_time::seconds( 1 ) );
    std::cout << ""wait_for has returned"" << std::endl;

    return 0;
}
}}}
"	Support Requests	assigned	To Be Determined	thread	Boost 1.65.0	Problem