linux-kernel - Re: [RFC PATCH 4/4] tools/thermal: Add thermal daemon skeleton

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Date:   Tue, 15 Feb 2022 00:43:21 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     srinivas pandruvada <srinivas.pandruvada@...ux.intel.com>,
        rafael@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Sasha Levin <sashal@...nel.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        William Breathitt Gray <vilhelm.gray@...il.com>
Subject: Re: [RFC PATCH 4/4] tools/thermal: Add thermal daemon skeleton


Hi Srinivas,

On 14/02/2022 23:34, srinivas pandruvada wrote:
> On Mon, 2022-02-14 at 22:04 +0100, Daniel Lezcano wrote:
>> This change provides a simple daemon skeleton. It provides an example
>> of how to use the thermal library.
>>
>> The goal of this skeleton is to give a base brick for anyone
>> interested in writing its own thermal engine.
>>
>> In the future, it will evolve with more features.
>>
>  From the code, doesn't seam to have a function to daemonize.

Yes, it does, see below. If the stdout output is set, then it won't 
daemonize.


> So may be not call a daemon if that is true. mainloop() is just an
> infinite loop polling netlink messages.
> 
> Also thermald will confuse with the standard thermald distributed with
> every distro. May be thermal_control_sample as this a sample for future
> development.

Does thermal-engine fine ?

>> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>

[ ... ]

>>   tools/thermal/thermald/thermald.c | 275

[ ... ]

>> +       if (!(options.logopt & TO_STDOUT) && daemon(0, 0))
>> +               return 1;

[ ... ]

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