On 04/26/2011 12:25 PM, Casey Duncan wrote:
To get an idea of what api calls are happening around the freezing,
you could try running your program under strace, or attach to it while
it's running using `strace -p`. It may not help much, but it's easy to
do and could provide insights for future improvement.
-Casey
On Mon, Apr 25, 2011 at 9:41 PM, Dylan<[email protected]> wrote:
I strongly suspect at this point what is causing the freezing might be the
background music. I never had issues with crashing and freezing unexpectedly
with either library until I added background music in pyglet. I don't know
why pyglet would have issues with that, but I do have an idea why it could
with pygame and pyglet at the same time. I found that pygame's sound module
can be easily used in a simple program without a gui, and it doesn't seem to
affect the program much, but maybe by using the functions specifically for
music, which is streaming, it could lead to the deadlock which seems to be
what freezes my program. It would make sense since it's the most obvious
continuous thing I'm using outside of pyglet, and although it doesn't
directly use the pygame main loop, I would not be surprised if it used its
own thread or something.
What I really want to know now is how to get joystick support and music from
pygame without these issues. Though I would still appreciate a second
opinion on what's causing the problem in the first place because this is
just all a guess. Even if I don't get either to work for this particular
game, I'd like to be able to get this combination to work for later programs
I work on.
On Sat, Apr 23, 2011 at 2:07 PM, Dylan Reimer<[email protected]> wrote:
On 04/23/2011 04:18 AM, Richard Jones wrote:
On Sat, Apr 23, 2011 at 12:26 AM, ssnake<[email protected]> wrote:
Hello, I've been using Pyglet lately to make a game, but I keep
getting these freezes for no apparent reason if I leave it on for more
than a few minutes it seems. I've eliminated everything I thought
could be causing them but it has not stopped them. When it happens I
can still move the window and I don't get an exception, but I hear no
sound, nothing gets drawn in the window, and it does not react to
input. I thought it could have been caused by using pygame's event
loop along with pyglet's for the joystick support, or pygame at all,
or running the game through Geany, but even with all disabled I still
get the problem. I do still use pygame for sound however, and I almost
always have Firefox on with Flash at the same time. I really would
like to remove this bug before I have to present my game in less than
a month.
There's some information missing from your post :-)
What version of pyglet? What version of Python? What operating system?
Are your video card drivers up to date?
What does your application do? It seems to incorporate pygame as well
as pyglet. In what way exactly and how do you manage their separate
event loops?
You mention futex_wait_queue_me in your followup message - Google
searching implies you're running on Ubuntu, and you seem to not be
alone: http://ubuntuforums.org/showthread.php?t=1517043
Richard
Yeah I thought of including that only after I posted it. I'm on Linux Mint
10, using Python 2.6, Pyglet 1.1.4, and Pygame 1.9.1. So you were pretty
much right that I was using Ubuntu. I last upgraded my video drivers like a
couple weeks ago or so, because I was using the Gallium3d drivers for a
while but it they gave me issues so I switched back to radeon.
My application is a game that uses pyglet for graphics, keyboard input,
the main event loop, and the resource module. I use pygame mostly for sound
now, as well as code for joystick support, but I commented out all of it
because I thought it was causing this problem. I only use pygame in two
files so far, which I put links for below.
The thread about futex_wait_queue_me seems to be saying it's about threads
reaching a deadlock, which makes me think it might still be from pygame. I
don't know much about threads, but I could imagine that pyglet on its own
does this somehow too. I started using pygame for joystick suppport and
audio because on #pygame they seemed to say that was a good idea, and I was
having issues with pyglet audio where it would crash randomly when I loaded
sounds. I also didn't like how all the drivers on Linux have major
limitations with pyglet audio.
Actually now that I think of it maybe what I should do is move where I put
pygame.mixer.init() at the beginning of soundManager.py, but I'm not sure if
that's really affecting anything, just a thought.
main.pyw: http://pastebin.com/YFRN9ydK
soundManager.py: http://pastebin.com/5SBspjY5
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I did this, but for whatever reason today I did not get the issue at all
after running it for several minutes. I have changed the code slightly
since what I put on here, but nothing that I thought would affect the
bug, and it was all very minor. I simply added a sprite in the game to
test how it would look in-game. Despite this I'm still pretty worried
about the bug. If I can't find out anything about it I might end up
using pygame with rabbyt instead because I don't want this happening
unexpectedly again. I'm going to try out some more stuff with it though,
possibly try to replicate whatever caused it, and upload the log if I
find anything interesting.
I also tried it out on my friend's computer last night and it didn't
have the bug there either, but that was before I changed the code at all.
If I stick with pyglet there are a couple things I'd like to improve
with it, and I might send patches back if I think my quality is
acceptable and they're wanted. Overall I think pyglet is great with
graphics, the event loop, and windows, but other areas have disappointed
me a bit besides the freezing error here. pygame overall was harder, but
from what I've seen it's very reliable, and rabbyt seems like a good way
to use OpenGL with it. If I do use pygame and rabbyt for this though I'm
going to copy a few things from pyglet.
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