Wt

Hey,

we'll probably add an example soon that demonstrates collaborative code editing in Wt

Best regards,

Wim.

Update?

The 'codeview' example is part of the latest release.

Wim.

I can't find it...

Link please!

Thanks

It's not deployed on our homepage, but it is an example. download the Wt distribution (3.1.7a) and go to examples/codeview.

Wim.

I'm having a problem with running the codeview example.

upon running, it stop the start up process at:

[2011-Mar-01 12:31:41.519000] 8286 - [notice] "Wt: initializing built-in httpd"

[2011-Mar-01 12:31:41.519000] 8286 - [notice] "Reading Wt config file: /etc/wt/wt_config.xml (location = './codeview.wt')"

and sits there continuously. Upon trying to debug(and interrupting the server), it seems it may be related to threading.

#0 0x00007ffff5a9beb4 in __lll_lock_wait () from /lib64/libpthread.so.0

#1 0x00007ffff5a972a4 in _L_lock_999 () from /lib64/libpthread.so.0

#2 0x00007ffff5a970ba in pthread_mutex_lock () from /lib64/libpthread.so.0

#3 0x00007ffff77bbaaf in boost::threadpool::detail::pool_core<boost::function0, boost::threadpool::fifo_scheduler, boost::threadpool::static_size, boost::threadpool::resize_controller, boost::threadpool::wait_for_all_tasks>::resize(unsigned long) volatile () from /usr/lib64/libwt.so.27

#4 0x00007ffff77bc1cf in boost::threadpool::thread_pool<boost::function0, boost::threadpool::fifo_scheduler, boost::threadpool::static_size, boost::threadpool::resize_controller, boost::threadpool::wait_for_all_tasks>::thread_pool(unsigned long) ()

from /usr/lib64/libwt.so.27

#5 0x00007ffff77b75a1 in Wt::WebController::WebController(Wt::Configuration&, Wt::WAbstractServer*, Wt::WebStream*, std::basic_string<char, std::char_traits, std::allocator >) () from /usr/lib64/libwt.so.27

#6 0x00007ffff7bade51 in Wt::WServer::setServerConfiguration(int, char, std::basic_string<char, std::char_traits, std::allocator > const&) ()

from /usr/lib64/libwthttp.so.27

#7 0x00007ffff7bb1e0f in Wt::WRun(int, char, Wt::WApplication* (*)(Wt::WEnvironment const&)) () from /usr/lib64/libwthttp.so.27

#8 0x00000000004351c9 in main ()

Is this an issue with how it was compiled or an issue with wt?

Hey,

I am not able to reproduce this, I think it's an issue with your build of Wt and/or the example?

Do the other examples run fine ?

Regards,

koen

Example hello builds/runs fine, but other threaded examples like simplechat don't.

I'm using the wt build from here:

https://build.opensuse.org/package/show?package=wt&project=devel%3Alibraries%3Ac_c%2B%2B

Hey Kevin,

Any luck on this issue ?

What is the actual wrong behaviour you are seeing ?

The gdb stacktrace looks suspcisious in the sense that it goes wrong as soon as the threads are created. You should see the same stack trace with examples like hello that seem to work fine. So it looks like there is something wrong with threading, but which only creates havoc in applications that actually do something thread related.

Regards,

koen

On upgrading to Opensuse 11.4 (still using same repo/packages for wt) this behavior seems to be gone once cleaning and rebuilding. May have been related to the previous kernel I had or something.