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Groups > comp.lang.c++ > #83847
| From | Muttley@dastardlyhq.com |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: "Performance of C++20's Ranges" |
| Date | 2022-04-28 15:57 +0000 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <t4edgo$12a8$1@gioia.aioe.org> (permalink) |
| References | (9 earlier) <t4dsot$78j$1@dont-email.me> <t4ebl5$323$1@gioia.aioe.org> <t4ebu5$1o7$1@dont-email.me> <t4ecq9$mmp$1@gioia.aioe.org> <t4ed7o$vm6$1@dont-email.me> |
On Thu, 28 Apr 2022 17:52:47 +0200 Bonita Montero <Bonita.Montero@gmail.com> wrote: >Am 28.04.2022 um 17:45 schrieb Muttley@dastardlyhq.com: >> On Thu, 28 Apr 2022 17:30:37 +0200 >> Bonita Montero <Bonita.Montero@gmail.com> wrote: >>>> So what does your code do if there are still threads reading the data and >>>> another wants to write? Suddenly block the read threads and revoke their >>> locks? >>>> Otherwise how do you solve the "all readers have relinquished ownership" >>>> problem? >>> >>> It behaves exactly like other shared locks, but once a writer has >>> registered as wanting to have write-access all further readers are >>> enqueued. >> >> Write locks should always take priority. I'd be surprised if shared_lock >> doesn't behave like that. > >That's impossible, readers can hold the lock in read-state as long Well yes, if they're currently reading. What would you suggest happens, the writer is allowed to write while the readers are reading and so you end up with a load of dirty reads? Not clever. >as they want. The only way to give writers priority is to enqueue >further readers. Errr yeees. If a write lock is requested it should get priority over any read locks currently requested. >>> No, working elegant code. >> >> For which definition of "elegant"? > >You're don't understand it so you can't say it's not elegant. Working and elegant are not the same thing.
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"Performance of C++20's Ranges" Cholo Lennon <chololennon@hotmail.com> - 2022-04-26 01:13 -0300
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-26 09:15 +0000
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-26 09:27 +0000
Re: "Performance of C++20's Ranges" Manfred <noname@add.invalid> - 2022-04-26 16:29 +0200
Re: "Performance of C++20's Ranges" "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-05-01 18:45 -0700
Re: "Performance of C++20's Ranges" "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-04-26 11:42 +0200
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-26 11:11 +0000
Re: "Performance of C++20's Ranges" "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-04-26 13:31 +0200
Re: "Performance of C++20's Ranges" Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-04-26 06:46 -0700
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-27 08:20 +0000
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-27 08:40 +0000
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-27 15:12 +0000
Re: "Performance of C++20's Ranges" scott@slp53.sl.home (Scott Lurndal) - 2022-04-27 16:09 +0000
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-27 16:21 +0000
Re: "Performance of C++20's Ranges" Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-04-29 16:15 -0700
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-30 16:00 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-27 19:03 +0200
Re: "Performance of C++20's Ranges" James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-04-27 11:12 -0400
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-28 06:45 +0000
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-27 06:30 +0000
Re: "Performance of C++20's Ranges" Manfred <noname@add.invalid> - 2022-04-28 23:57 +0200
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-29 06:07 +0000
Re: "Performance of C++20's Ranges" Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-04-29 16:28 -0700
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-05-02 05:01 +0000
Re: "Performance of C++20's Ranges" Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-05-10 07:36 -0700
Re: "Performance of C++20's Ranges" James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-04-26 11:28 -0400
Re: "Performance of C++20's Ranges" Manfred <noname@add.invalid> - 2022-04-26 18:13 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-26 16:24 +0000
Re: "Performance of C++20's Ranges" James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-04-26 12:48 -0400
Re: "Performance of C++20's Ranges" Cholo Lennon <chololennon@hotmail.com> - 2022-04-26 20:20 -0300
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-27 08:30 +0000
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-27 08:50 +0000
Re: "Performance of C++20's Ranges" Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-04-27 05:12 -0700
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-27 15:18 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-27 18:56 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 08:40 +0000
Re: "Performance of C++20's Ranges" Paavo Helde <eesnimi@osa.pri.ee> - 2022-04-28 13:54 +0300
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 13:11 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:25 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 17:30 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:45 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 17:52 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:57 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 18:01 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 16:06 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 18:09 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 16:14 +0000
Re: "Performance of C++20's Ranges" "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-04-28 16:11 -0700
Re: "Performance of C++20's Ranges" "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-04-28 16:20 -0700
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-29 09:31 +0000
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:15 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 13:07 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:17 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 17:31 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:50 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 17:55 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:59 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 18:02 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 16:13 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 18:20 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-29 09:27 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-29 20:48 +0200
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-30 07:34 +0200
Re: "Performance of C++20's Ranges" scott@slp53.sl.home (Scott Lurndal) - 2022-04-30 17:31 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-30 20:30 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-05-01 15:20 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-01 18:18 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-05-01 16:25 +0000
Re: "Performance of C++20's Ranges" scott@slp53.sl.home (Scott Lurndal) - 2022-05-01 23:14 +0000
Re: "Performance of C++20's Ranges" "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-05-01 18:52 -0700
Re: "Performance of C++20's Ranges" scott@slp53.sl.home (Scott Lurndal) - 2022-04-28 18:21 +0000
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-29 09:29 +0000
Re: "Performance of C++20's Ranges" scott@slp53.sl.home (Scott Lurndal) - 2022-04-28 18:19 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-28 21:01 +0200
Re: "Performance of C++20's Ranges" "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-04-28 16:07 -0700
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:22 +0000
Re: "Performance of C++20's Ranges" Juha Nieminen <nospam@thanks.invalid> - 2022-04-28 10:57 +0000
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-28 15:27 +0000
Re: "Performance of C++20's Ranges" red floyd <no.spam.here@its.invalid> - 2022-04-28 09:26 -0700
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-27 17:07 +0200
Re: "Performance of C++20's Ranges" Muttley@dastardlyhq.com - 2022-04-27 15:54 +0000
Re: "Performance of C++20's Ranges" Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-27 18:35 +0200
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