[racket-users] RacketCon Sunday Hours?

Like many of you, I’m looking forward to attending RacketCon this year. Before I buy plane tickets, though, I’m wondering if we have some thought about what the hours of Sunday’s “Office Hours” will be. Thoughts? Can’t wait! John -- You received this message because you are subscribed to

Re: [racket-users] Re: Efficient & "nice" communication mechanism between Racket and other languages

For youpatch.com my colleague and I used a "quasi-microservices architecture" to get my Racket, his Python, and our JavaScript to work together, using JSON and HTTP. Starting out with a JSON and HTTP would give you a baseline, and then swapping in other formats and transport mechanisms could

Re: [racket-users] Re: Efficient & "nice" communication mechanism between Racket and other languages

A hot-take brain-dump: Seems like two aspects: What and how. (The serialization format and the communication method.) What: The correct answer is s-expressions. :) Maybe EDN. OK, OK. A more agnostic answer is JSON -- it has flaws, but it's widely supported among languages, and "everything is a

Re: [racket-users] Efficient & "nice" communication mechanism between Racket and other languages

On 09/07/2017 12:11 PM, Brian Adkins wrote: I'm considering having a group of programmers create micro-services in various programming languages to be glued together into a single application. I would like a communication mechanism with the following characteristics: * Already supported by

Re: [racket-users] Turning off the sharing check for printing

One could use a eq hash table (maybe a weak one, or maybe cooperate more with the code that's doing the printing to throw away the table) to avoid doing the sensitive code more than once? Robby On Fri, Sep 8, 2017 at 9:17 AM, Matthew Flatt wrote: > There's not a way to turn

[racket-users] Re: Efficient & "nice" communication mechanism between Racket and other languages

On Thursday, September 7, 2017 at 11:56:37 PM UTC-4, Jack Firth wrote: > On Thursday, September 7, 2017 at 9:11:47 AM UTC-7, Brian Adkins wrote: > > I'm considering having a group of programmers create micro-services in > > various programming languages to be glued together into a single > >

Re: [racket-users] Turning off the sharing check for printing

There's not a way to turn off the sharing check. Did you find a better way to do what you want? I think the problem here is an implicit contract on values that flow to the printer, where the implicit contract constrains a value to be printable more than once. A value's printing function can be

Re: [racket-users] Re: Racket Web servlet performance benchmarked and compared

dbohdan wrote on 09/07/2017 04:52 PM: Last, I ran the benchmark over the Internet with two machines about 1.89×10^-10 light years apart. The applications ran on a very humble VPS. Due to its humbleness I had to reduce the number of concurrent connections to 25. The #/sec for each

Re: [racket-users] BST fold function and finding a node

You may wish to read Chapter 16 in HtDP/2e: http://www.ccs.neu.edu/home/matthias/HtDP2e/part_three.html#%28part._ch~3a3use%29 It teaches how to re-use an existing abstraction, which is what you are having trouble with. To help you along, I have changed your code in a few places: (1) I

[racket-users] BST fold function and finding a node

I am doing an exercise from EDX course based on H2DP book and am having trouble implementing a `find` function using the abstract function fold-elt. The function should find the element and return its data. - #lang htdp/isl (define-struct elt (name data subs)) ;; Element is (make-elt

Re: [racket-users] Re: Racket Web servlet performance benchmarked and compared

Wow! Thanks for all of this work. It is really interesting to see how different the performance is on the Internet workload! On Thu, Sep 7, 2017 at 9:52 PM, dbohdan wrote: > On Tuesday, September 5, 2017 at 12:41:04 PM UTC+3, Jay McCarthy wrote: >> Is the benchmarking