Use case right now is for the ssl_session_reuse plugin, it's crashing during shutdown and the reason is one or more thread of it is lingering just a bit too long and with openssl-1.1.1 it will crash. The current way is to set a flag but there are threads that sleeps up to 30 seconds, or if the timing is really bad might just started calling stuff in openssl, so the shutdown flag won't be enough. With the cancel, we can just terminate the thread on the spot. The TSThreadSetCancelState and TSThreadSetCancelType are really just to make sure TSThreadCancel can terminate a thread, I can find a way to hide them.
On Thu, Feb 28, 2019 at 2:43 PM Leif Hedstrom <zw...@apache.org> wrote: > > > > On Feb 28, 2019, at 9:17 AM, Fei Deng <duke8...@apache.org> wrote: > > > > void TSThreadSetCancelState(TSThread thread, int state); > > void TSThreadSetCancelType(TSThread thread, int type); > > void TSThreadCancel(TSThread thread); > > void *TSThreadJoin(TSThread thread); > > > That’s a lot of APIs for something that sounds “simple”. Can you provide > an example how all these APIs would be used? > > — leif > >
