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Overflow mode #44

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alandiwix opened this issue Jan 20, 2022 · 3 comments · Fixed by #89
Closed

Overflow mode #44

alandiwix opened this issue Jan 20, 2022 · 3 comments · Fixed by #89

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@alandiwix
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Would it be possible to have overflow mode (similar to one in async_broadcast) in this implementation? Would be nice to have this mode for a channel that doesn't require Clone for messages.
@zjijz
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zjijz commented Apr 20, 2022 •
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I also have a use case where I want an async SPSC bounded channel that follows the overflow method of async-broadcast when the channel is filled instead of blocking new sends. I was thinking something that would be inherent to the channel itself, so adding a creation function like async_channel::bounded_circular instead of a mutable overflow mode set.

I can use async-broadcast for my case as well so I'm not blocked.

@taiki-e
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taiki-e commented Jun 7, 2022 •
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This should be possible to do after adding a function similar to crossbeam-rs/crossbeam@bd75c3c to concurrent-queue.

@taiki-e taiki-e mentioned this issue Nov 24, 2023
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notgull added a commit to smol-rs/concurrent-queue that referenced this issue Feb 11, 2024
@notgull
feat: Add an overflow push method
4820cec 
In some cases it is desired to have a "lossy" queue for data. Such as an
event queue where more recent events should be prioritized over older
ones, where infinite storage is impractical. This commit adds a method
called "force_push" which enables this usage.

Bounded queue code is partially derived from the following commit:
crossbeam-rs/crossbeam@bd75c3c

cc smol-rs/async-channel#44

Signed-off-by: John Nunley <dev@notgull.net>
@notgull notgull mentioned this issue Feb 11, 2024
Merged
notgull added a commit to smol-rs/concurrent-queue that referenced this issue Mar 30, 2024
@notgull
feat: Add an overflow push method
c407467 
In some cases it is desired to have a "lossy" queue for data. Such as an
event queue where more recent events should be prioritized over older
ones, where infinite storage is impractical. This commit adds a method
called "force_push" which enables this usage.

Bounded queue code is partially derived from the following commit:
crossbeam-rs/crossbeam@bd75c3c

cc smol-rs/async-channel#44
@notgull
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notgull commented Apr 7, 2024

This function has been added to concurrent-queue. Once it's released we can implement this functionality.

notgull added a commit that referenced this issue May 5, 2024
@notgull
feat: Add a force send function
8a4f54e 
Closes #44 by adding a "force_send" method. This method can replace an
existing element in the list, in which case that element is returned.
This can be used to make "limited capacity" channels.

Signed-off-by: John Nunley <dev@notgull.net>
@notgull notgull mentioned this issue May 5, 2024
Merged
notgull added a commit that referenced this issue May 6, 2024
@notgull
feat: Add a force send function
3fc1130 
Closes #44 by adding a "force_send" method. This method can replace an
existing element in the list, in which case that element is returned.
This can be used to make "limited capacity" channels.

Signed-off-by: John Nunley <dev@notgull.net>
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Add a force send function smol-rs/async-channel
4 participants
@zjijz @notgull @taiki-e @alandiwix