Re: Interruptible sleeps (was Re: CommitFest 2009-07: Yay, Kevin! Thanks, reviewers!)

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

To: Fujii Masao <masao.fujii@gmail.com>

Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org

Date: 2010-09-02T18:30:59Z

Lists: pgsql-hackers

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latch-3.patch (text/x-diff) patch

On 02/09/10 06:46, Fujii Masao wrote:
> On Wed, Sep 1, 2010 at 4:11 PM, Heikki Linnakangas
> <heikki.linnakangas@enterprisedb.com>  wrote:
>> The obvious next question is how to wait for multiple sockets and a latch at
>> the same time? Perhaps we should have a select()-like interface where you
>> can pass multiple file descriptors. Then again, looking at the current
>> callers of select() in the backend, apart from postmaster they all wait for
>> only one fd.
>
> Currently backends have not waited for multiple sockets, so I don't think that
> interface is required for now. Similarly, we don't need to wait for the socket
> to be ready to *write* because there is no use case for now.

Ok, here's an updated patch with WaitLatchOrSocket that let's you do that.

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com