| From: | Peter Geoghegan <peter(at)2ndquadrant(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Process wakeups when idle and power consumption |
| Date: | 2011-05-09 11:27:41 |
| Message-ID: | BANLkTikTaYEn8stT_89Z0P6HAB_QZL0bCA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 9 May 2011 11:19, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> Can't we use the pipe trick on Windows? The API is different, but we use
> pipes on Windows for other things already. When a process is launched, open
> a pipe between postmaster and the child process. In the child, spawn a
> thread that just calls ReadFile() on the pipe, which blocks. If postmaster
> dies, the ReadFile() call will return with an error.
Alright. I'm currently working on a proof-of-concept implementation of
that. In the meantime, any thoughts on how this should meld with the
existing latch implementation?
--
Peter Geoghegan http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training and Services
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