7767 2009-09-29 16:47:15 +0000 Atomic update of application cache is not well-defined 2010-10-04 14:47:06 +0000 1 1 1 Unclassified HTML WG pre-LC1 HTML5 spec (editor: Ian Hickson) unspecified PC All VERIFIED WORKSFORME http://dev.w3.org/html5/spec/Overview.html#updating-an-application-cache NE P2 normal --- 1 nikunj.mehta ian ian mike public-html-admin public-html-wg-issue-tracking public-html-bugzilla oldest_to_newest 27882 0 nikunj.mehta 2009-09-29 16:47:15 +0000 [[ Atomically, so as to avoid race conditions, perform the following substeps: If the status of the cache group is either checking or downloading, then abort this instance of the update process, as an update is already in progress for them. ]] Atomically is not well defined here. 1. What happens if the state of the cache group changes mid-stream of this algorithm? 2. If the algorithm is already running when another instance is started, does the latter instance stay blocked? 27915 1 ian 2009-09-30 10:12:06 +0000 "Atomically" is a well-understood term in computer science. For your questions, it's not clear if by "algorithm" you mean the whole algorithm, or just the substep that is run atomically. Can you elaborate? 27956 2 nikunj.mehta 2009-09-30 16:50:04 +0000 (In reply to comment #1) > "Atomically" is a well-understood term in computer science. > > For your questions, it's not clear if by "algorithm" you mean the whole > algorithm, or just the substep that is run atomically. Can you elaborate? > In 2.3, list of pending master entries is being modified. Should this be isolated from 7.4? In 2.4, 2.5, and 2.6, the status of a cache group is being inspected and in 2.7, the same is being modified. Should these be isolated from 5.6, 7.6, 10, 28, and failure step 6? 28448 3 ian 2009-10-18 10:41:17 +0000 > In 2.3, list of pending master entries is being modified. Should this be > isolated from 7.4? > > In 2.4, 2.5, and 2.6, the status of a cache group is being inspected and in > 2.7, the same is being modified. Should these be isolated from 5.6, 7.6, 10, > 28, and failure step 6? Everything in step 2 runs atomically, so it's isolated from everything.