Re: Process wakeups when idle and power consumption - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: Process wakeups when idle and power consumption
Date
Msg-id BANLkTikTaYEn8stT_89Z0P6HAB_QZL0bCA@mail.gmail.com
Whole thread Raw
In response to Re: Process wakeups when idle and power consumption  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Responses Re: Process wakeups when idle and power consumption  (Fujii Masao <masao.fujii@gmail.com>)
List pgsql-hackers
On 9 May 2011 11:19, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.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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