panama-foreign VS 2014-slides

Going to copy my Reddit comment over to HN because I think it's valuable:

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One of the coolest things that's been worked on (by this same author, no less!) isn't even in the article!

Per has written a pretty-printer for MemorySegments and ByteBuffers that can hex-dump memory or render memory/buffers as their "struct" representations given some MemoryLayout.

You can also customize it with your own printers, it's wicked cool and helps so much to debug buffers when working with them.

https://github.com/openjdk/panama-foreign/pull/695

What do I mean by that? Have a look at this comment for an image of a raw memory structure layout I represented with MemoryLayout, and the pretty-print rendering of it:

https://github.com/openjdk/panama-foreign/pull/695#issuecomm...

[Here's the project github](https://github.com/openjdk/panama-foreign)

I am not using any special flag (is there one?) but the overhead seems quite high, especially considering the explanation on how these methods are compiled https://github.com/openjdk/panama-foreign/blob/foreign-jextract/doc/panama_ffi.md

https://github.com/openjdk/panama-foreign/blob/foreign-jextract/doc/panama_jextract.md ..look at these examples

I found the full context for the change written up here https://github.com/openjdk/panama-foreign/pull/554

Incentive for JVM devs? We know that C interoperability, malloc, free, structs are already supported on JVM natively since Java 14 with project panama's foreign-memory-api without JNI. I've been using sun.misc.Unsafe since Java8 and also LWJGL's C API.

Speaking of air gaps, here's David Beazley's wonderful classic talk about using Python as a secret weapon while locked in a vault:

>So, what happens when you lock a Python programmer in a secret vault containing 1.5 TBytes of C++ source code and no internet connection? Find out as I describe how I used Python as a secret weapon of "discovery" in an epic legal battle.

>Slides can be found at: https://speakerdeck.com/pycon2014 and https://github.com/PyCon/2014-slides

https://www.youtube.com/watch?v=RZ4Sn-Y7AP8

https://en.wikipedia.org/wiki/SWIG

>Initial release February 1996; 25 years ago

http://www.swig.org/history.html

>July, 1995. Dave develops SWIG while working in the Theoretical Physics Division at Los Alamos National Laboratory. Originally, it was conceived as an extension building tool for a customized scripting language that had been created for the Connection Machine 5.

David Beazley, the author of SWIG, is a brilliant programmer, and excellent presenter.

https://en.wikipedia.org/wiki/David_M._Beazley

Check out his many talks about programming, especially his PyCon 2014 talk on his work as an expert on a patent infringement case.

https://www.youtube.com/watch?v=RZ4Sn-Y7AP8

>David Beazley: Discovering Python - PyCon 2014

>So, what happens when you lock a Python programmer in a secret vault containing 1.5 TBytes of C++ source code and no internet connection? Find out as I describe how I used Python as a secret weapon of "discovery" in an epic legal battle.

>Slides can be found at: https://speakerdeck.com/pycon2014 and https://github.com/PyCon/2014-slides

https://www.reddit.com/r/programming/comments/25svd1/the_epi...

>YellowSharkMT 7y

>So much dry, geeky wit... Beazley should be a stand-up comic. This is probably the most entertaining talk from the entire 2014 PyCon.

>"This is my attempt to come up with the most boring talk title at the Pycon... that was actually one of the review in the submission..."

>"These are usually like the people at the law firm who haven't made partner yet, their job's probably on the line..."

>"You're gonna get all sorts of fun reading assignments...you read that, and it's just like your head explodes" (slide image shows dude from Scanners)

>"And the provided tools were Windows XP - awesome. The Windows command prompt - awesome. The Search Mutt - (audience erupts in laughter) [...] pretty awesome. Notepad [...] and then b/c they were feeling generous, they had Visual Studio on there."

>"By good fortune, I actually wrote the Python book, and I was allowed to bring books into the vault, so I was like OK, I'll be right back, I'm gonna go get my book..."

>His tutorial on generators was also really excellent. Lots of respect for him, he's really skilled at presenting technical concepts in an entertaining and engaging way.

https://www.youtube.com/watch?v=D1twn9kLmYg&ab_channel=PyCon...