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Re: DataChannel: how to know the max size of the sending buffer?

From: Iñaki Baz Castillo <ibc@aliax.net>
Date: Sat, 10 May 2014 15:26:20 +0200
Message-ID: <CALiegfnQEP_nC1qedi4eTXTsqoMUBX3wFTjAaFprvf+wnMaegQ@mail.gmail.com>
To: Wolfgang Beck <wolfgang.beck01@googlemail.com>
Cc: "public-webrtc@w3.org" <public-webrtc@w3.org>
2014-05-10 14:09 GMT+02:00 Wolfgang Beck <wolfgang.beck01@googlemail.com>:
> Inside OS kernels, we have the same problem and have solved it decades
> ago: run the sender when there is space in the queue. Run the receiver
> when there is data available (but don't remove the received data from
> the queue yet, the receiver might not be able to handle when its
> upstream queues are full).
> In Javascript, this would translate into two callbacks:
> onreceivedata() just tells the JS that it can get a message from the
> datachannel now.
> onsendspace() tells the JS that it can send a packet now
> recv() would fail with an exception, when there is no data available,
> send() would fail with an exception, when the JS tried to send without
> waiting for a onsendspace() event.

The problem is that the DataChannel JS API mimics the WebSocket JS API
(it is intentional), which behaves in the same way.

Iñaki Baz Castillo
Received on Saturday, 10 May 2014 13:27:07 UTC

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