Ryan McConnehey <mccorywork@gmail.com> writes:
I'm trying to set several threads running and have the main thread signal an interrupt. I've included an example that shows what I'm trying to accomplish. The threads that are created are associated with thread_group and then a join_all is called. I would expect the main thread to be able to call interrupt_all on the thread_group. Since this wasn't working I looked at what the join_all and interrupt_all function were actually doing. It turns out that thread_group has a mutex that is being called for each function and since the mutex for join_all is in use, the lock in interrupt_all is blocking. I understand why the mutex is there but am unclear how interrupt_all is suppose to work with join_all. To accomplish the functionality I need I have to use create_thread and store the return pointer in a list of my own. Then call interrupt on each pointer I stored. Which is basically duplicating the storage of thread_group. This seem like a waste. I would appreciate any advice.
There's an open trac issue about it. I'm working on boost::thread today, so I'll apply the patch. Anthony -- Author of C++ Concurrency in Action | http://www.manning.com/williams just::thread C++0x thread library | http://www.stdthread.co.uk Just Software Solutions Ltd | http://www.justsoftwaresolutions.co.uk 15 Carrallack Mews, St Just, Cornwall, TR19 7UL, UK. Company No. 5478976