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3.x: Add onDropped callbacks to operators #7458

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6 tasks done
akarnokd opened this issue Aug 8, 2022 · 8 comments
Closed
6 tasks done

3.x: Add onDropped callbacks to operators #7458

akarnokd opened this issue Aug 8, 2022 · 8 comments

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@akarnokd
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akarnokd commented Aug 8, 2022

Add onDropped callback overloads to most operators that drop items that can't be recovered by other means.

  • throttleLatest PR #7457
  • throttleFirst PR #7482
  • throttleLast / sample PR #7488
  • throttleWithTimeout / debounce PR #7510
  • onBackpressureLatest (PR #7458)
  • onBackpressureBuffer (PR #7567)
    • 📓 The current overloads with Action are somewhat unhelpful, however, we'll have to add overloads in a way that avoids lambda ambiguity.
@akarnokd akarnokd added this to the 3.2 milestone Aug 8, 2022
@Desislav-Petrov
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Hi - do you need any help with some of these?

@akarnokd
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@Desislav-Petrov you can have a stab at them. I won't have the time for weeks although there is no rush either.

@Desislav-Petrov
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Desislav-Petrov commented Oct 18, 2022

Thanks, starting this week and will follow your PR per method strategy - I've started with throttleFirst

@Desislav-Petrov
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hi @akarnokd - i'm looking at throttleLast. From what I see, we should change the public void onNext(T t) method in the *SampleTimed class. More precisely, when we do the lazySet() we should check if a value exists there - if so we need to call the onDropped with this value as this is what we're dropping.
Does this make sense?

@Desislav-Petrov
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Thx - leave this with me, will do a PR shortly.

@Desislav-Petrov
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taking a look at throttleWithTimeout / debounce next

@Desislav-Petrov
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Looking at onBackpressureLatest next

akarnokd added a commit that referenced this issue May 23, 2023
* 3.x: Add onDropped callback to onBackpressureBuffer

Related #7458

* MBE is expected

* Annotate with experimental
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