<div dir="auto">:) define "hard". Because the hard bit is "just" creating a subclass of something or other.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 11 May 2023, 00:36 Ron Pressler, <<a href="mailto:ron.pressler@oracle.com">ron.pressler@oracle.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



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<div>On 10 May 2023, at 17:46, <a href="mailto:forax@univ-mlv.fr" target="_blank" rel="noreferrer">
forax@univ-mlv.fr</a> wrote:</div>
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<span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline!important">Yes,
 but Go channels also do O(N) wakeups in the worst case (sometimes you can pump several results in one wakeup) and nobody complain.</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
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<div>Channels aren’t Go’s structured concurrency construct, errgroups are, and they block once (at least their API suggests that).</div>
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<div><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline!important">What
 i'm proposing is just a glorified blocking queue + a spliterator but it allows to implement any logic more easily.</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
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<div>Channels are something we’re interested in, but as an orthogonal feature to — putting it very simply — solve the “blocking queue closing” problem (and perhaps some others, such as distributed implementation, easy functional transformations).</div>
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<div><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline!important">You're
 aware that I have demonstrated the Java 19 version of STS to numerous conference attendees. However, the requirement to create custom subclasses is often a point of confusion for them. Many existing APIs attempt to separate the concurrency aspect, which is
 managed by the implementation, from the business logic that users should focus on.</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline!important">I
 believe the current incarnation of STS is falling short.</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
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<div>Can you please try to clearly identify the problem you’re trying to solve? E.g. doing X well with STS is hard </div>
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<div>— Ron</div>
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