From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: Two-stage suspend operations Date: Sun, 08 May 2016 20:26:28 +0100 Organization: A noiseless patient Spider Message-ID: References: <9e93195a-eba0-4793-a64c-a24613090b3c@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: mx02.eternal-september.org; posting-host="6e1b8fc3eb07ad055fcf36cde3a9ae8e"; logging-data="25740"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX181LtqzRP+uBrkyABSw+YGk1qCFTHJ1JvY=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (darwin) Cancel-Lock: sha1:zFEc1DUhKgxqtW/JFHj3jOVejuE= sha1:MRDvvR78Wmuzj+0nl/stGGPpvb0= Xref: news.eternal-september.org comp.lang.ada:30356 Date: 2016-05-08T20:26:28+01:00 List-Id: rieachus@comcast.net writes: > On Saturday, May 7, 2016 at 12:13:19 PM UTC-4, Simon Wright wrote: >> >> I've spent some time googling "two-stage suspend operations" and come >> up empty... >> >> Has anyone any other references? > > Try "two phase locking" you should get about a million hits, and the > first few I looked at were all on topic. I don't see the connection; they're all about database locking, e.g "A transaction is said to follow the two-phase locking protocol if all locking operations (read_lock, write_lock) precede the first unlock operation in the transaction. Such a transaction can be divided into two phases:"