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    <p>Dear Peter,</p>

    <p>as I see it, this code is just an example that shows how to

      initialize a custom process/module</p>

    <p>which adheres to OTP.</p>

    <p>The function do_initialization() is just a placeholder and

      depends on the topic of your module.</p>

    <p>This could be anything from contacting a database to initializing

      an I2C link.</p>

    <p>Here it is only known that it either returns ok or {error,

      Reason}. Based on this, the startup</p>

    <p>either succeeds or fails.</p>

    <p><br>

    </p>

    <p>In general, if you are looking for examples, I suggest to search

      on github or similar, something like</p>

    <p><a class="moz-txt-link-freetext" href="https://github.com/search?q=proc_lib%3Ainit_ack&type=commits">https://github.com/search?q=proc_lib%3Ainit_ack&type=commits</a></p>

    <p><br>

    </p>

    <p><br>

    </p>

    <p>Kind regards,</p>

    <p>Dieter</p>

    <p><br>

    </p>

    <div class="moz-cite-prefix">On 01.01.21 06:32, Peter J Etheridge

      wrote:<br>

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    <blockquote type="cite"

      cite="mid:b1f14326b1901414daa8c815c5fbc0cd2053038a@webmail.iinet.net.au">

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      <div>Dear Fellow Erlangers,</div>

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      </div>

      <div>In proc_lib module this example includes a function in the

        case statement;</div>

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      </div>

      <div>

<pre><span class="hljs-keyword">-module<span class="hljs-params">(my_proc).

<span class="hljs-keyword">-export<span class="hljs-params">([start_link/<span class="hljs-number">0]).

<span class="hljs-keyword">-export<span class="hljs-params">([init/<span class="hljs-number">1]).

<span class="hljs-function"><span class="hljs-title">start_link</span><span class="hljs-params">()</span> -></span>

    proc_lib:start_link(my_proc, init, [self()])

<span class="hljs-function"><span class="hljs-title">init</span><span class="hljs-params">(Parent)</span> -></span>

    <span class="hljs-keyword">case</span> do_initialization() <span class="hljs-keyword">of</span>

        ok ->

            proc_lib:init_ack(Parent, {ok, self()});

        {error, Reason} ->

            exit(Reason)

    <span class="hljs-keyword">end</span>,

    loop().

could someone kindly direct me to an example of a

do_initialization()

function?

thank you in advance,

Peter

</pre>

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