[erlang-questions] prim_inet socket incompatible with file:sendfile/2/5

[Zabrane Mickael]

Hi,

Is there any reason why a client socket created from prim_inet 

do not work with the new file:sendfile fonction?

I got {error, badarg}.

Any undocumented function to solves this?

Regards,

Zabrane

[Lukas Larsson]

Hi!

There are a couple of reasons why this might not work. Could you show
me a small example of what you are trying to do?

Lukas

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[Zabrane Mickael]

Hi Lukas,

Sorry for the late response.

Please find attached a minimalistic example.

1> prim_sendfile:start().

and try:
curl http://127.0.0.1:8080/

Nothing happens.
What am I doing wrong?

If I use the standard gen_tcp:accept/1, gen_tcp:recv/2, gen_tcp:send/2 on the socket, sendfile works as expected.
But not with a socket handled by prim_inet. Why?

Thanks for your help.

Regards,
Zabrane

[Lukas Larsson]

Hi,

When using the prim_inet API you have to be careful with what you
remove. In this case you have to call
`erlang:port_set_data(CSock,inet_tcp)` after accepting the socket. The
port data is used by erlang code to figure out which type of socket
the port represents.

Lukas

[Zabrane Mickael]

Hi Lukas,

Perfect now.
Anything else I should know avour prim_inet usage?

Regards,
Zabrane