libc blocking functions/with_libc inside thread

Christian Helmuth christian.helmuth at ...1...
Fri Jun 23 15:28:18 CEST 2017


On Fri, Jun 23, 2017 at 03:21:28PM +0200, Boris Mulder wrote:
> Basically if I do not use with_libc, the call to socket() will hang
> forever inside the first read() call to the socket file.

So, which code does your initial entrypoint execute? As I wrote
before, the initial entrypoint is responsible for completing the I/O
operations in Libc components. In other words, if the initial
entrypoint does not block and then handle libc I/O signals, other
threads blocked in the libc will never resume.

> The reason I used a Genode::Thread was because openvpn already did
> that. Do you think using a pthread might be better in this case?

No, I was just curios ;-)

Christian Helmuth
Genode Labs · · /ˈdʒiː.nəʊd/

Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

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