Re: [w3c/ServiceWorker] Define scope to job queue map struct (#1183)

jakearchibald approved this pull request.



> @@ -2435,7 +2437,9 @@ spec: webappsec-referrer-policy; urlPrefix: https://w3c.github.io/webappsec-refe
     * For *register* and *update* <a>jobs</a>, both their [=job/scope url=] and the [=job/script url=] are the same.
     * For *unregister* <a>jobs</a>, their [=job/scope url=] is the same.
 
-  A <dfn id="dfn-job-queue">job queue</dfn> is a thread safe queue used to synchronize the set of concurrent <a>jobs</a>. The <a>job queue</a> contains <a>jobs</a> as its elements. The <a>job queue</a> *should* satisfy the general properties of FIFO queue. A user agent *must* maintain a separate <a>job queue</a> for each [=/service worker registration=] keyed by its [=service worker registration/scope url=]. A <a>job queue</a> is initially empty. Unless stated otherwise, the <a>job queue</a> referenced from the algorithm steps is a <a>job queue</a> for the <a>job</a>'s [=job/scope url=].
+  A <dfn id="dfn-job-queue">job queue</dfn> is a thread safe [=queue=] used to synchronize the set of concurrent [=jobs=]. The [=job queue=] contains [=jobs=] as its [=queue/items=]. A [=job queue=] is initially empty.

Do we need to define "thread safe" further? I'm not sure. If we do, something like "jobs must run in series"?

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