[bitbake-devel] [PATCH] bitbake: prserv: fix ResourceWarning due to unclosed socket

[Mikko.Rapeli at bmw.de]

Hi,

On Mon, Nov 11, 2019 at 02:17:39PM -0800, gavinli at thegavinli.com wrote:
> From: Gavin Li <gavin at matician.com>
> 
> With PRSERV_HOST = "localhost:0", this message would occasionally pop up
> during the initial cache read:

Thanks for this fix!

It's not occasionally, it's all the time with zeus and Debian build container...

If it helps:
Tested-by: Mikko Rapeli <mikko.rapeli at bmw.de>

-Mikko

> WARNING: /home/matic/ambayocto/poky/bitbake/lib/bb/cache.py:446: ResourceWarning: unclosed <socket.socket fd=10, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, laddr=('127.0.0.1', 45655)>
>   value = pickled.load()
> 
> The file location stated is irrelevant; it just happens to be wherever
> CPython decides to run the garbage collector. The issue is that after we
> fork off a PRServer, self.socket is also duplicated. The parent side of
> it also needs to be closed.
> 
> Signed-off-by: Gavin Li <gavin at matician.com>
> ---
>  bitbake/lib/prserv/serv.py | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/bitbake/lib/prserv/serv.py b/bitbake/lib/prserv/serv.py
> index be3acec36a..1d9148b817 100644
> --- a/bitbake/lib/prserv/serv.py
> +++ b/bitbake/lib/prserv/serv.py
> @@ -243,6 +243,7 @@ class PRServer(SimpleXMLRPCServer):
>          try:
>              pid = os.fork()
>              if pid > 0:
> +                self.socket.close() # avoid ResourceWarning in parent
>                  return pid
>          except OSError as e:
>              raise Exception("%s [%d]" % (e.strerror, e.errno))
> -- 
> 2.23.0
> 
> -- 
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