Aditya Arora <callmeadi@gmail.com> writes:
I'd like to use boost threads, if possible, in an upcoming project, just for the sake of portability. The problem is that boost threads seem a bit unwieldy when it comes to quickly creating multiple threads. Since the thread object constructor is what actually launches the thread, you can't simply create an array of thread objects on the stack, since each thread is only launched when the constructor is passed a functor. Therefore, if you want an array of threads, you need to allocate each thread object individually on the heap, like:
boost::thread* thr[SIZE]; for (int i = 0; i < SIZE; ++i) thr[i] = new boost::thread(functor);
That works, but is unwieldy due to the "new" and the need to call delete. Thankfully it's not the only way. With the move support you can write the following: boost::thread thr[SIZE]; for (int i =0 ; i < SIZE: ++i) thr[i] = boost::thread(functor); The thread objects are created without a thread, then you create a new thread object with a new thread and transfer that to the appropriate element of the array. You will still need to join your threads individually though as the destructor calls detach(). Anthony -- Author of C++ Concurrency in Action http://www.stdthread.co.uk/book/ 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