Re: [PATCH v2 07/13] rpc: finish all threads before exiting main loop

Currently we have issues like [1] on libvirtd shutdown as we cleanup while RPC and other threads are still running. Let's finish all threads other then main before cleanup. The approach to finish threads is suggested in [2]. In order to finish RPC threads serving API calls we let the event loop run but stop accepting new API calls and block processing any pending API calls. We also inform all drivers of shutdown so they can prepare for shutdown too. Then we wait for all RPC threads and driver's background thread to finish. If finishing takes more then 15s we just exit as we can't safely cleanup in time. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1828207 [2] https://www.redhat.com/archives/libvir-list/2020-April/msg01328.html Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)virtuozzo.com&gt; Reviewed-by: Daniel Henrique Barboza <danielhb413(a)gmail.com&gt; --- src/remote/remote_daemon.c | 6 ++-- src/rpc/virnetdaemon.c | 81 +++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 83 insertions(+), 4 deletions(-)