Maurizio, thanks for pointing the bug out - however I don't think I was impacted by it.
I agree with you that a more complex examples might distract the audience from the main presentation points. As mentioned in one of my previous email, I finalized some examples myself: 1. One example for memory layouts creates a structure where we associate the SSN (social security number) to a credit score. The main point here is to make a mix between char arrays and integers. Code is here: https://github.com/knowledge-base-and-tutorials/java14-features/blob/master/src/main/java/com/github/kbnt/java14/fma/ForeignMemoryAccessExamples.java (method called example03SSNToCreditScore) Presentation of the case is here: https://www.youtube.com/watch?v=NwXzT8T6mb8&list=PLGDP1Irs2PmWNwAwMPdyOxCqkFqB6gtp9&index=7&t=1287s 2. A more complex example (in memory off-heap analytics and memory mapped files) is the sleep analytics: Code is here: https://github.com/knowledge-base-and-tutorials/java14-features/blob/master/src/main/java/com/github/kbnt/java14/fma/SleepAnalytics.java (the class' javadoc should describe it) Presentation of the case is here: https://www.youtube.com/watch?v=NwXzT8T6mb8&list=PLGDP1Irs2PmWNwAwMPdyOxCqkFqB6gtp9&index=7&t=1734s If you find anything useful in those and want to use but the license (Apache 2.0 for the code and CC-BY-SA for the videos) is in the way, let me know and I can change them to something friendlier (where e.g. no attribution is needed). Cheers! Chris T On Fri, Feb 14, 2020 at 6:26 PM Maurizio Cimadamore < maurizio.cimadam...@oracle.com> wrote: > > On 13/02/2020 03:39, Chris T wrote: > > No problem! Nice talk at FOSDEM, Maurizio ;-)! > > One suggestion, for future talks - when it comes to memory layouts please > construct an example that is a little bit more complex (by end of the > upcoming weekend I will publish one that can be used). I had trouble with > bit alignment when working on mine, but I will come back with the details > (no bug or anything but more clarity would be beneficial in the docs). In > your example (the Point one) the alignment is 32 but that is now always the > case... The reason I mention this as an issue is that the Java development > community is more "high-level". Believe it or not, bit alignment is not > anymore "a thing" with most of us ;-)... > > Hey Chris - on alignment there was an issue that was uncovered on > panama-dev - I think this fix should probably be ported to mainline: > > https://bugs.openjdk.java.net/browse/JDK-8238320 > > This might make working with layout with padding a bit more tedious than > intended, although this is probably not what you ran into. > > Re: talk suggestion - yes, more realistic examples would probably be > better - but it's always hard to strike the right balance; if the example > is more realistic it can be harder to follow, which might not be good when > you are showing new concepts. But I'll keep that in mind for the future - > after all this is a new API, and, as it's always the case, the more you > think about how to explain these concepts and the more you do it, the more > ways you find to get the message across in an optimal way. > > Thanks! > Maurizio > > > > I will also think about some API enhancements I would like to see as a > developer... > > Thanks! > Chris T > > On Tue, Feb 11, 2020 at 4:07 AM Maurizio Cimadamore < > maurizio.cimadam...@oracle.com> wrote: > >> Thanks Paul! >> >> Maurizio >> >> On 10/02/2020 17:58, Paul Sandoz wrote: >> > I modified the JEP with updated code snippets that compile against the >> latest API in JDK 14 [*]. >> >
