On Oct 30, 2007, at 2:03 PM, Phil Endecott wrote:
Howard Hinnant wrote:
Actually thread cancellation is old. Many (not all) thread API's have some form or another of cancellation. That being said, the compromise reached at the Kona meeting 4 weeks ago was to remove cancellation (or interruption) from the proposal. This removal is reflected in N2411.
That's unfortunate. I'm a little confused about how completely removing it is a "compromise"!
This is something that I need. Does anyone know of an alternative (POSIX-compatible) C++ thread library that offers cancellation? If not I may try to write on.
A partial workaround is to religiously use cv::timed_wait, as opposed to cv::wait, so that you can wake up and discover if you're supposed to quit every once in a while. It should be easy to set up a "cancel" flag that a thread can periodically check. For example you could just pass a ref(bool) as one of the arguments in your thread- main function and reference that argument with thread local data. One will still have trouble waking from blocked system calls, but that's life. -Howard