On Thu, Mar 28, 2019 at 04:25:31AM -0400, Frediano Ziglio wrote: > > > > On Mon, Mar 11, 2019 at 02:03:33PM +0000, Frediano Ziglio wrote: > > > Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx> > > > --- > > > docs/spice_threading_model.txt | 8 ++++++++ > > > 1 file changed, 8 insertions(+) > > > > > > diff --git a/docs/spice_threading_model.txt > > > b/docs/spice_threading_model.txt > > > index 9351141c8..25a3a030c 100644 > > > --- a/docs/spice_threading_model.txt > > > +++ b/docs/spice_threading_model.txt > > > @@ -39,6 +39,14 @@ connect, disconnect and migrate. Connect and migrate are > > > asynchronous (the job > > > is done while the current thread is doing something else) while disconnect > > > is > > > synchronous (the main thread will wait for termination). > > > > > > +One aspect to take into consideration is the event scheduling. SPICE uses > > > some > > > +`SpiceCoreInterface` to handle events. As the events will be handled from > > > a > > > +thread based on the core interface you have to use the correct core. Each > > > +channel has an associated core interface which can be retrieved using > > > +`red_channel_get_core_interface`. There's also a main core interface you > > > can get > > > +using `reds_get_core_interface`. `reds_core_timer_*` and > > > `reds_core_watch_*` > > > +functions use the main core interface. > > > > Do we need a few words as to when to use the main core interface? > > Apart from this, looks good to me. > > > > Christophe > > > > It sounds a nice idea. > > But honestly I cannot came with an easy rule beside "If code runs on > main thread like Qemu character devices or everything not running in > a channel you can use the main core interface." Yes, something like your rule would work "Code running in the QEMU thread should use the main core interface. Code running in the cursor or display channel (through RedWorker) should use xxx interface.. Code running in other channels should use yyy. Be aware that a channel's ClientCbs run in a different thread context than the rest of the channel" (though the last sentence may no longer be accurate with the work you are doing in that area). Christophe
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