Creating a thread in via TBB library

Question

I have a code like this:

 #include <iostream> #include <tbb/tbb.h> #include <Windows.h> bool MyThread(int something) { std::cout << "This is a thread function\n" << std::endl; for (int i = 0; i < 10000; i++) { something++; Sleep(1); } return true; } int main () { tbb::tbb_thread pMyThread = tbb::tbb_thread(MyThread, 3); pMyThread.join(); return 0; }

But if I compile it in VS 2008 it shows: error C2248: 'tbb::internal::tbb_thread_v3::tbb_thread_v3' : cannot access private member declared in class 'tbb::internal::tbb_thread_v3'

for the first string of main() function. Where am I wrong?

Most thread objects, either tbb or c++11 cannot be copied or assigned. You code invoke an unnecessary assignment operator which is private to prevent you do exactly this. However C++11 thread are movable. Not sure if it is the case of tbb — Yan Zhou
– Yan Zhou, Commented Oct 11, 2012 at 17:40
the one in tbb\compat is I believe movable, however he is using vs2008 which doesn't have rvalue support. — Rick
– Rick, Commented Oct 11, 2012 at 22:06

Rick · Accepted Answer · 2012-10-11 17:02:42Z

3

This is likely calling a copy constructor when it shouldn't, try this instead:

tbb::tbb_thread myThread(MyThread, 3);

If you are able you should also consider using std::thread which is in the header

answered Oct 11, 2012 at 17:02

Rick

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Patrizio Bertoni Over a year ago

Why using std::thread if question is TBB related? I'm evaluating TBB for performance purposes and I'm curious about benchmarking it against std::threads

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