On (Tue) Apr 06 2010 [10:17:12], Gerd Hoffmann wrote:
>> So you mean just return -EAGAIN in case write returns with -EAGAIN?
>>
>> Yeah, makes sense.
>
> Yes.
>
> Note that for EINTR you want re-enter write() through so callers don't
> have to worry about signals.
Yes, of course.
So you mean just return -EAGAIN in case write returns with -EAGAIN?
Yeah, makes sense.
Yes.
Note that for EINTR you want re-enter write() through so callers don't
have to worry about signals.
cheers,
Gerd
On (Tue) Apr 06 2010 [09:36:17], Gerd Hoffmann wrote:
> Hi,
>
>> In case of EAGAIN, the unix_write() function just kept spinning while
>> attempting to write to the chardev till it succeeded. This resulted in
>> a stuck VM in case a chardev had opened connection but wasn't reading
>> anything fro
Hi,
In case of EAGAIN, the unix_write() function just kept spinning while
attempting to write to the chardev till it succeeded. This resulted in
a stuck VM in case a chardev had opened connection but wasn't reading
anything from qemu.
It spins only for non-blocking file handles. In blocking
