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From: Ian Jackson <ian.jackson@eu.citrix.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Xen-devel <xen-devel@lists.xenproject.org>,
	Wei Liu <wei.liu2@citrix.com>
Subject: Re: [XTF PATCH 3/3] xtf-runner: support two modes for getting output
Date: Thu, 11 Aug 2016 12:08:03 +0100	[thread overview]
Message-ID: <22444.23699.895010.962994@mariner.uk.xensource.com> (raw)
In-Reply-To: <160347d1-355b-2e52-7bb7-2a709f53ebb3@citrix.com>

Andrew Cooper writes ("Re: [XTF PATCH 3/3] xtf-runner: support two modes for getting output"):
> Can't you just open the log file as read, seek to the end, run the test
> and read again from the same FD?  It would be rather more simple than
> marking the logs.

This is a good suggestion, I think.  Much better than mine in my other
email.

> Sadly, whatever method we use here is going to have to be clever enough
> to cope with the log files being rotated, and I can't think of a clever
> way of doing that ATM.

In an automatic test system the logfiles won't get big enough to be
rotated.  In a manual setup this is just a "random hazard" which you
seem to be prepared to accept...

But: it is easy for the runner to see if the logfile was rotated.  It
can open the logfile a second time and check if it has the same inum.

Ian.

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  parent reply	other threads:[~2016-08-11 11:08 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-10 15:07 [XTF PATCH 0/3] Support getting output from either console or log file Wei Liu
2016-08-10 15:07 ` [XTF PATCH 1/3] xtf-runner: introduce get_xen_version Wei Liu
2016-08-11 10:10   ` Andrew Cooper
2016-08-11 10:12     ` Wei Liu
2016-08-11 10:14       ` Andrew Cooper
2016-08-10 15:07 ` [XTF PATCH 2/3] xtf-runner: options for different modes to get output Wei Liu
2016-08-10 15:07 ` [XTF PATCH 3/3] xtf-runner: support two modes for getting output Wei Liu
2016-08-11  8:33   ` Wei Liu
2016-08-11  9:44     ` Wei Liu
2016-08-11  9:56       ` Andrew Cooper
2016-08-11 10:05         ` Wei Liu
2016-08-11 11:08         ` Ian Jackson [this message]
2016-08-11 11:19           ` Wei Liu
2016-08-11 11:41             ` Andrew Cooper
2016-08-11 10:49   ` Ian Jackson
2016-08-11 11:03     ` Wei Liu

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