From: Stefan Beller <sbeller@google.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: "git@vger.kernel.org" <git@vger.kernel.org>,
Jacob Keller <jacob.keller@gmail.com>, Jeff King <peff@peff.net>,
Jonathan Nieder <jrnieder@gmail.com>,
Johannes Schindelin <johannes.schindelin@gmail.com>,
Jens Lehmann <Jens.Lehmann@web.de>,
Vitali Lovich <vlovich@gmail.com>
Subject: Re: [PATCHv3 06/13] run-command: add an asynchronous parallel child processor
Date: Tue, 22 Sep 2015 14:31:04 -0700 [thread overview]
Message-ID: <CAGZ79kYwMrpU-gW6FsbH1W4TRPisZH9GJoyZ6hoimXdxz4HCYQ@mail.gmail.com> (raw)
In-Reply-To: <xmqqtwqm2puk.fsf@gitster.mtv.corp.google.com>
On Tue, Sep 22, 2015 at 12:53 PM, Junio C Hamano <gitster@pobox.com> wrote:
> Stefan Beller <sbeller@google.com> writes:
>
>> So how would you find out when we are done?
>
> while (1) {
> if (we have available slot)
> ask to start a new one;
> if (nobody is running anymore)
> break;
> collect the output from running ones;
> drain the output from the foreground one;
> cull the finished process;
> }
>
Personally I do not like the break; in the middle of
the loop, but that's personal preference, I'd guess.
I'll also move the condition for (we have available slot)
back inside the called function.
So I am thinking about using this in the reroll instead:
run_processes_parallel_start_as_needed(&pp);
while (pp.nr_processes > 0) {
run_processes_parallel_buffer_stderr(&pp);
run_processes_parallel_output(&pp);
run_processes_parallel_collect_finished(&pp);
run_processes_parallel_start_as_needed(&pp);
}
This eliminates the need for the flag and also exits the loop just
after the possible startup of new processes.
next prev parent reply other threads:[~2015-09-22 21:31 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 22:39 [PATCHv3 00/13] fetch submodules in parallel and a preview on parallel "submodule update" Stefan Beller
2015-09-21 22:39 ` [PATCHv3 01/13] Sending "Fetching submodule <foo>" output to stderr Stefan Beller
2015-09-21 23:47 ` Junio C Hamano
2015-09-21 22:39 ` [PATCHv3 02/13] xread: poll on non blocking fds Stefan Beller
2015-09-21 23:55 ` Junio C Hamano
2015-09-22 4:55 ` Torsten Bögershausen
2015-09-22 6:23 ` Jacob Keller
2015-09-22 18:40 ` Torsten Bögershausen
2015-09-22 19:45 ` Junio C Hamano
2015-09-22 19:49 ` Jeff King
2015-09-22 20:00 ` Junio C Hamano
2015-09-23 0:14 ` Stefan Beller
2015-09-23 0:43 ` Junio C Hamano
2015-09-23 1:51 ` Jeff King
2015-09-21 23:56 ` Eric Sunshine
2015-09-22 15:58 ` Junio C Hamano
2015-09-22 17:38 ` Stefan Beller
2015-09-22 18:21 ` Junio C Hamano
2015-09-22 18:41 ` Stefan Beller
2015-09-21 22:39 ` [PATCHv3 03/13] xread_nonblock: add functionality to read from fds nonblockingly Stefan Beller
2015-09-22 0:02 ` Junio C Hamano
2015-09-22 0:10 ` Junio C Hamano
2015-09-22 6:26 ` Jacob Keller
2015-09-22 6:27 ` Jacob Keller
2015-09-22 15:59 ` Junio C Hamano
2015-09-21 22:39 ` [PATCHv3 04/13] strbuf: add strbuf_read_once to read without blocking Stefan Beller
2015-09-22 0:17 ` Junio C Hamano
2015-09-22 6:29 ` Jacob Keller
2015-09-21 22:39 ` [PATCHv3 05/13] run-command: factor out return value computation Stefan Beller
2015-09-22 0:38 ` Junio C Hamano
2015-09-21 22:39 ` [PATCHv3 06/13] run-command: add an asynchronous parallel child processor Stefan Beller
2015-09-22 1:08 ` Junio C Hamano
2015-09-22 18:28 ` Stefan Beller
2015-09-22 19:53 ` Junio C Hamano
2015-09-22 21:31 ` Stefan Beller [this message]
2015-09-22 21:41 ` Junio C Hamano
2015-09-22 21:54 ` Stefan Beller
2015-09-22 22:23 ` Junio C Hamano
2015-09-21 22:39 ` [PATCHv3 07/13] fetch_populated_submodules: use new parallel job processing Stefan Beller
2015-09-22 16:28 ` Junio C Hamano
2015-09-21 22:39 ` [PATCHv3 08/13] submodules: allow parallel fetching, add tests and documentation Stefan Beller
2015-09-21 22:39 ` [PATCHv3 09/13] submodule config: keep update strategy around Stefan Beller
2015-09-22 0:56 ` Eric Sunshine
2015-09-22 15:50 ` Stefan Beller
2015-09-21 22:39 ` [PATCHv3 10/13] git submodule update: cmd_update_recursive Stefan Beller
2015-09-21 22:39 ` [PATCHv3 11/13] git submodule update: cmd_update_clone Stefan Beller
2015-09-21 22:39 ` [PATCHv3 12/13] git submodule update: cmd_update_fetch Stefan Beller
2015-09-21 22:39 ` [PATCHv3 13/13] Rewrite submodule update in C Stefan Beller
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