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+ Sat, 02 Jul 2011 07:20:41 -0700 (PDT)\r
+From: Pieter Praet <pieter@praet.org>\r
+To: Austin Clements <amdragon@mit.edu>\r
+Subject: Re: [PATCH 2/2] [RFC] possible solution for "Race condition for '*'\r
+ command"\r
+In-Reply-To:\r
+ <CAH-f9WticM4EN8F1_ik_-mcBcBtrXwSpO+Drbtp7=UN7McECrg@mail.gmail.com>\r
+References:\r
+ <CAH-f9WticM4EN8F1_ik_-mcBcBtrXwSpO+Drbtp7=UN7McECrg@mail.gmail.com>\r
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+Date: Sat, 02 Jul 2011 16:20:39 +0200\r
+Message-ID: <87zkkwydag.fsf@praet.org>\r
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+\r
+On Fri, 1 Jul 2011 12:37:11 -0400, Austin Clements <amdragon@mit.edu> wrote:\r
+Non-text part: multipart/alternative\r
+> On Jul 1, 2011 10:55 AM, "Austin Clements" <amdragon@mit.edu> wrote:\r
+> >\r
+> > On Thu, Jun 30, 2011 at 3:38 PM, Pieter Praet <pieter@praet.org> wrote:\r
+> > > Ok, even though my very first reply [1] may have created the impression\r
+> > > that I understood the issue, I clearly didn't...\r
+> > >\r
+> > > The test [2] needs a more applicable commit message, and the subsequent\r
+> > > patch [3] points more or less in the right direction, but the Message-Id\r
+> > > list should be local to the *search buffer* rather than to the\r
+> > > `notmuch-search-operate-all' function.\r
+> > >\r
+> > > `notmuch-search' could:\r
+> > > - run "notmuch-command search" with the "--output=messages" option\r
+> > > instead of a plain search,\r
+> > > - maintain a buffer-local var with a list of returned Message-Id's,\r
+> > > - ...and populate the buffer based on that list.\r
+> > >\r
+> > > As such we'd have -for each individual search buffer- a canonical list\r
+> > > of Message-Id's (i.e. messages which actually *match* the query AND are\r
+> > > currently visible in the search buffer), to be used by\r
+> > > `notmuch-search-operate-all' et al.\r
+> > >\r
+> > >\r
+> > > Peace\r
+> > >\r
+> > > --\r
+> > > Pieter\r
+> > >\r
+> > > [1] id:"87fwmuxxgd.fsf@praet.org"\r
+> > > [2] id:"1309450108-2793-2-git-send-email-pieter@praet.org"\r
+> > > [3] id:"1309450108-2793-1-git-send-email-pieter@praet.org"\r
+> >\r
+> > Ideally, this wouldn't be per-buffer, but per *line*. This race\r
+> > equally affects adding and removing tags from individual results,\r
+> > since that's done using a thread: query, whose results could have\r
+> > changed since the original search.\r
+> >\r
+> > This almost certainly requires support from the notmuch core. The\r
+> > good news is that the library already provides this information, so\r
+> > there will be virtually no performance hit for outputting it.\r
+> \r
+> Actually, with a smidgeon of library support, you could even use document\r
+> IDs for this, rather than message IDs, which would make the tagging\r
+> operations (even '*') no more expensive than they are now. (Of course, it\r
+> would be good to know just how much overhead going through message IDs\r
+> actually introduces.)\r
+Non-text part: text/html\r
+\r
+\r
+That would be awesome!\r
+\r
+Though I'd rather leave the plumbing to someone sufficiently capable,\r
+so, if leaving libnotmuch hacking out of the equation, how would one go\r
+about doing this?\r
+\r
+I (ignorantly) assume we'd get `notmuch-search-process-filter'\r
+to append each line with an invisible field containing a list\r
+of matching Message-Id's, presumably obtained via\r
+`notmuch_thread_get_matched_messages' (@ lib/thread.cc) ?\r
+\r
+\r
+Peace\r
+\r
+-- \r
+Pieter\r
projects / notmuch-archives.git / commitdiff