Hi Michal, After a good night's sleep, I've decided to not fight this battle at the buffer layer.
However, I appreciate (1) the code you've written and (2) the initial suggestion (which got me interested enough to dig into internals of Channels.clj / Mutex.clj / ... ) On Tue, Jan 14, 2014 at 5:31 AM, Alex Miller <a...@puredanger.com> wrote: > From my perspective, a buffer is below the abstraction level of a channel. > If you want a channel with special behavior, it seems like you should > implement a channel. > > > On Monday, January 13, 2014 10:47:22 PM UTC-6, t x wrote: >> >> I am aware of: >> >> DroppingBuffer and SliddingBuffer >> >> I would like to build a channel with different semantics: >> >> When I try to put an item on a full channel: >> >> * DroppingBuffer drops the new item >> * SliddingBuffer evicts the oldest item >> >> * ClosingBuffer should _close the channel_ >> >> (thus, the receiver eventually gets a nil, and realizes "ah, was >> disconnected") >> >> Now, I am looking at the github core.async code: >> >> DroppingBuffer: https://github.com/clojure/core.async/blob/ >> 76317035d386ce2a1d98c2c349da9b898b480c55/src/main/clojure/ >> clojure/core/async/impl/buffers.clj#L33-L45 >> >> ManyToManyChannel: https://github.com/clojure/core.async/blob/ >> 76317035d386ce2a1d98c2c349da9b898b480c55/src/main/clojure/ >> clojure/core/async/impl/channels.clj#L31-L198 >> >> ## Problem: >> >> DroppingBuffer is easy to understand. However, I don't think I can >> implement "ClosingBuffer" as Buffer. >> >> I feel taht "ClosingBuffer" can only be implemneted at the Channel Level. >> >> However, the Channel Code is complicated. >> >> Is there a neat hack / trick to do what I described above? >> >> Thanks! >> > -- > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
