Re: [pygame] Is pygame event thread save? or I need use lock to post user event in thread?

["René Dudfield" <renesd@xxxxxxxxx>]

hi,

Posting an event is *not* really thread-good.  It will work, but will
start raising exceptions if you do it from multiple threads.  You can
make a post function that retries on exceptions, but then you may get
worse performance.

Use the fastevent module instead if you want to use threads.  The only
main difference is that you can't peek at the event queue... which no
one really does any way.  It is designed to be much faster with
threads, and is thread-good :)

Using the fastevent module is much nicer, and I hope we will finally
make it into pygame 1.9 as the default event module.

I've done a number of programs using threads, and the fastevent module
is the way to go.


cu!



On Tue, Nov 25, 2008 at 2:33 AM, Peter Shinners <pete@xxxxxxxxxxxx> wrote:
> halida wrote:
>>
>> I want to use multi-thread in pygame game loop,
>> with main draw and display.update thread,
>>  event process thread,
>> game update thread.
>> and I will use event.post(drawEvent) to tell main thread  to update
>> screen.
>> do I need use threading.Lock()  to lock it? or just let it go?
>> it is too hard to read pygame source code for me.
>>
>
> Posting an event is thread safe, you will not need to worry about locking.
>
> I'm pretty sure you must still get events from the main thread. Getting
> events is very tied to the platform.
>
>