socket question

[hg]

Hi,

I am not sure whether this is a python-related question.

If I have device A than sends XX bytes to device B, and device B does a
recv(XX) using the default timeout, what could make device B wake-up
with less than XX bytes received ?

Regards,

hg

[Diez B. Roggisch]

Re: socket question

hg wrote:

Hi,
>
I am not sure whether this is a python-related question.
>
If I have device A than sends XX bytes to device B, and device B does a
recv(XX) using the default timeout, what could make device B wake-up
with less than XX bytes received ?

There exist higher abstractions for sockets in python for IPC - are you sure
you want to reinvent the wheel?

If you absolutely must: the select-call allows for specification of a
timeout. Use it with the socket file-descriptor.

Diez

[hg]

Re: socket question

Diez B. Roggisch wrote:

hg wrote:
>

>Hi,
>>
>I am not sure whether this is a python-related question.
>>
>If I have device A than sends XX bytes to device B, and device B does a
>recv(XX) using the default timeout, what could make device B wake-up
>with less than XX bytes received ?

>
There exist higher abstractions for sockets in python for IPC - are you sure
you want to reinvent the wheel?
>
If you absolutely must: the select-call allows for specification of a
timeout. Use it with the socket file-descriptor.
>
Diez

Thanks I'll look, with the retry-wrapper around recv, it seem to work now.

hg