[Boost-users] Re: boost::thread problem

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-03-17 03:32:01

Pete wrote:

> Expected:            Actual:
> ---------------      ---------------
> Start running        Start running
> Start swimming       Finish running
> Start cycling        Start swimming
> Finish swimming      Finish swimming
> Finish cycling       Start cycling
> Finish running       Finish cycling
> 
> In windows I get the actual output but under Linux RH9, I get the Actual
> output. Under RH9, the first five lines of the actual output appear
> immediately, but the last one takes approx. 4secs. In other words, only
> the last threads don't sleep the number of secs specified.
....
>     void operator()()
>     {
>       std::cout << "Start " << m_strName << std::endl;
>       sleep(m_iDuration);
>       std::cout << "Finish " << m_strName << std::endl;
>     }
> };

This works just fine on my Debian box. Two ideas:

1. Print out the value of m_iDuration before calling 'sleep', just in case
somehow it's corrupted.

2. Check for return value of 'sleep'. If it slept for the time you
specified, you should get return value of '0'. Otherwise, further checks
will be needed to find why it retrns prematurely.

- Volodya