Update of bug #12817 (project wesnoth):
Assigned to: boucman => dave
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Follow-up Comment #2:
Ok, here is what is going on.
the worker thread is in a poll call with a timeout of 60000 ms at
network_worker.cpp
the main thread calls disconnect(s=0)
which calls disconnect(socket=x,force=0) a couple of time. These calls will
never succeed because the main thread is blocked.
the we call disconnect(socket=x,force=1) which always destroys the socket
(see network_worker_pool::close_socket) however our working thread is still
in the pool
then "disconnect" will call SDLNet_TCP_Close, which will, at last get the
socket out of it's "poll"
however it's too late. we crash at network_worker.cpp:292 because the call to
disconnect(force=1) has already removed the structure we are atempting to use
The clean fix would be to somehow unblock the thread while we are doing the
disconnect with force=0 At that point a chance is given (via
SOCKET_INTERRUPT) for the thread to exit cleanly, but the thread stays
blocked on poll
I don't know the system calls well enough to know how to do that.
thx for looking
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