int main()
{
boost::asio::io_service io_service;
boost::asio::io_service::strand strand1(io_service);
boost::asio::io_service::strand strand2(io_service);
boost::asio::io_service::strand strand3(strand1);
boost::asio::spawn(strand1,
[&](boost::asio::yield_context yield)
{
assert(strand1.running_in_this_thread());
assert(!strand2.running_in_this_thread());
assert(strand3.running_in_this_thread());
// Access implementation details.
auto strand4 = yield.handler_.dispatcher_;
assert(strand4.running_in_this_thread());
// No way to compare strands to one another. Although strand1, strand3,
// and strand4 use the same strand implementation, there is no way to
// compare the objects themselves to one another.
});
io_service.run();
}
bool boost_strand::empty(bool checkTick)
{
assert(_strand);
assert(running_in_this_thread());
#ifdef ENABLE_NEXT_TICK
return _strand->empty() && (checkTick ? _nextTickQueue1.empty() && _nextTickQueue2.empty() : true);
#else
return _strand->empty();
#endif
}
bool qt_strand::in_this_ios()
{
return running_in_this_thread();
}