Boost Users :
Subject: Re: [Boost-users] directory_iterator ++operator never return
From: Peter Dimov (pdimov_at_[hidden])
Date: 2009-05-19 08:08:50
"gtsml owevwr" (Frank):
> I'm getting a list of the file in a directory like that:
> fs::directory_iterator end ;
> for( fs::directory_iterator iter(myfilepath) ; iter != end ; ++iter )
> And at some point in this for loop, the ++operator never return, see
> callstack (single-thread build).
> #0 0x31d41270 in swtch_pri
> #1 0x31dd19cc in sched_yield
> #2 0x000ac1d4 in boost::detail::yield at yield_k.hpp:110
> #3 0x000adb54 in scoped_lock [inlined] at detail:45
> #4 0x000adb54 in boost::detail::spinlock::lock at detail:32
> #5 0x000adb54 in atomic_exchange_and_add [inlined] at detail:61
> #6 0x000adb54 in boost::detail::sp_counted_base::release at detail:100
Things to try:
- does it still hang if you remove the ... from the loop and just use the
directory iterator to walk through the directory without doing anything?
- does a simple use of shared_ptr hang?
shared_ptr<int> p( new int );
p.reset(); // here
- #define BOOST_SP_USE_PTHREADS;
- #define BOOST_SP_DISABLE_THREADS.
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