Handling of requests over multiplexed streams

[SharmaShikha-84]

Hello,

On receiving multiple requests over streams , the library processes stream one by one and expects the response back from the first stream before moving to process another one.
Scenario :
Request 1 (over Stream 3), Request 2(over Stream 5) & Request 2(over Stream 9.)

• Application handler called from on_frame_recv_cb for Request 1-Stream3.
• Introduced delay in application for 5 secs in the handler.
• Request 2(over Stream 5) is processed only after 5 sec have passed and it receives positive/negative response.

At this time if 1 stream is blocked/taking some time, all others are blocked/delayed as well.

[maru]

Hi @coolshikhs ! Thank you for reporting this bug.
This functionality is not implemented yet, but I should do it very soon.

Normally, if you know that the response can take time, you should use MHD_suspend_connection and MHD_resume_connection in your application request handler function.

See this:
https://www.gnu.org/software/libmicrohttpd/manual/html_node/microhttpd_002dflow.html
https://github.com/maru/libmicrohttpd-http2/blob/master/src/examples/suspend_resume_epoll.c

[SharmaShikha-84]

Hi Maru,
Do you have an idea when can we expect this functionality?

Thanks,
Shikha

[maru]

Hi Shikha,
sorry for the delay, I haven't had the time to look into it.

If you have an idea, you are more than welcome to propose the code!
Let me know!

Best regards,
Maru

[SharmaShikha-84]

Hi Maru,
Just wanted to check if you have had time to work on this or planning it any time soon? I was trying it myself but running into some memory fragmentation issues.
Do let me know if you have something in mind regarding the approach.
Regards,
Shikha