Re: How do you deal with lengthy server tasks?
- From: Guillaume Poirier-Morency <guillaumepoiriermorency gmail com>
- To: libsoup-list gnome org
- Subject: Re: How do you deal with lengthy server tasks?
- Date: Tue, 05 Feb 2019 10:24:22 -0500
Le dimanche 03 février 2019 à 18:26 +0000, Biz.122 via libsoup-list a
écrit :
Hey,
I would like to stream some audio with soup server. How would you go
about something like that? Each browser request will launch the
server callback that does all processing, but I cannot stay in there
looping and sending data. This will block any other requests.
I looked around a bit and found this:
https://github.com/GNOME/libsoup/blob/54014b2d8a7b579b832372cb4dd22df04fefd45e/tests/context-test.c#L41
Look at the "SlowData / soup_add_timeout" example.
Is this how you would typically perform streaming tasks or large file
transfers, and not completely locking up your server callback?
You can pause the message with soup_server_pause_message, launch the
task in background and resume it later with
soup_server_unpause_message.
To send data continuously, you can mix that with a chunked response.
soup_message_headers_set_encoding (msg, SOUP_ENCODING_CHUNKED);
soup_server_pause_message (msg);
g_thread_pool_push (pool, msg, NULL);
In the thread pool (or asynchronously via the GMainLoop):
soup_message_body_append_take (data, data_len);
soup_server_unpause_message (msg); // deliver the chunk
// later when done
soup_message_complete (msg);
soup_server_unpause_message (msg);
Best Regards,
Biz
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--
Guillaume Poirier-Morency <guillaumepoiriermorency gmail com>
Étudiant à la maîtrise en informatique à l'Université de Montréal
Chercheur à l'IRIC
Mon blog: https://arteymix.github.io/
Clé PGP: B1AD6EA5
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