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[mediacapture-main] applyConstraints algorithm threading issues (editorial)

From: Jan-Ivar Bruaroey via GitHub <sysbot+gh@w3.org>
Date: Mon, 27 Aug 2018 14:54:41 +0000
To: public-media-capture-logs@w3.org
Message-ID: <issues.opened-354352932-1535381672-sysbot+gh@w3.org>
jan-ivar has just created a new issue for https://github.com/w3c/mediacapture-main:

== applyConstraints algorithm threading issues (editorial) ==
The [applyConstraints algorithm](https://w3c.github.io/mediacapture-main/getusermedia.html#dfn-applyconstraints-algorithm) is called both from the method of the same name, and *getUserMedia*.

Problem is, it's called from main-thread in the first case, and off-main-thread in the second, and the error handling in the second case is busted:

The algorithm returns a promise which goes unused, which means errors are dropped.

Promises have built-in main-thread semantics we should avoid off-main-thread.

Please view or discuss this issue at https://github.com/w3c/mediacapture-main/issues/530 using your GitHub account
Received on Monday, 27 August 2018 14:54:44 UTC

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