[vlc-devel] net_Read in modules/access/udp.c and __net_Read in src/network/udp.c

[Anand Anand]

Hi,

Thanks immensely once again. I would be very grateful if you could tell me
in which file and which function in the source code pf_block is being called
repeatedly till EOF because I cant seem to find it.

I understand the concept of callbacks --basically passing the function as an
argument to another function... however i still think somewhere the callback
function must still receive an argument.. I think it will be clear if I see
the way pf_block is being called..

thanks
anand

On 9/7/07, Rémi Denis-Courmont <rdenis at simphalempin.com> wrote:
>
> Le jeudi 6 septembre 2007 18:13, Anand Anand a écrit:
> > Thanks for the prompt reply. I understand that BlockUDP is called by
> > BlockPrebufferRTP in a for loop.. so for rtp streams the datagrams are
> > being received datagram by datagram.. however for raw udp streams I dont
> > see the recv function being called(BlockUDP) in a while or for loop? Am
> i
> > missing something?
>
> pf_block is called repeatedly by LibVLC core input code until
> the "end-of-file".
>
> > Another question is regarding this statement:
> > p_access->pf_block = BlockRTP
>
> > how is it that no arguments are being passed to the function? shouldnt
> > p_access be passed as an argument to the function or where is it
> implied?
>
> Hmm, this is a function pointer (pf_*), a.k.a. a callback. Do you know C
> language syntax?
>
> > are the BlockRTP and BlockUDP functions being run continuously in a
> thread
> > somewhere?
>
> Basically, yes.
>
> > is there some good book on vlc development?
>
> No.
>
> --
> Rémi Denis-Courmont
> http://www.remlab.net/
>
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