Re: Where do I learn how to program Nim without a GC?
Compile with `--gc:stack` var rx: Region withRegion rx: ... json code here ... You're right though that it needs documentation. I don't even know if it's in 0.14.
Re: Send data structures between threads?
> How do I avoid accidentally trashing the refcounts? protect and dispose only give you a `pointer` that you can cast to `ptr JsonObj` and so RCs are not affected. > But as you mentioned before, I can force it with a cast. Is that part of the > solution you're suggesting? Well yes. But you really need to be careful and even then it doesn't support multiple threads creating data and adding it to an existing datastructure wihout copies, so Boehm may indeed be what you want.
GD Designs Rochdale Reviews (16)
GD Designs Rochdale Reviews (16) . Looks fab and was half price of other companies. Barry Fairhurst
Re: asynchttpserver and big request body
@vega I think it is different between io of httpserver and stand stream. readChar readData ... are not useful. I think we need apis like recvOnClientError recvOnAChunk recvOn100Continue recvOnTimeout etc.
Re: Send data structures between threads?
Say, I never did get an answer to either of the questions above. I'm still curious: 1\. If the json is stored in a thread-local heap, then I let other threads reference the json, those other threads are going to tend to touch the refcounts. But the refcounts, presumably, aren't atomic ints. How do I avoid accidentally trashing the refcounts? 2\. The compiler is trying very hard to prevent me from passing a ref to the json from the thread that created it to any other thread. (That's what gc-safe is all about). But as you mentioned before, I can force it with a cast. Is that part of the solution you're suggesting?
Re: Where do I learn how to program Nim without a GC?
Yeah, but he needs information on how to cause an normally garbage-collected library (for example, the JSON library) to allocate out of a memory region, without changing the code for the library. I think the real answer is: I don't think memory regions are implemented yet, I don't think anyone's really ironed out the details.
Re: Where do I learn how to program Nim without a GC?
> I mean somehow I have to tell Nim when to free memory right? Yeah sure, you just use these: [alloc](http://forum.nim-lang.org///nim-lang.org/docs/system.html#alloc,Natural), [dealloc](http://forum.nim-lang.org///nim-lang.org/docs/system.html#dealloc,pointer), [allocShared](http://forum.nim-lang.org///nim-lang.org/docs/system.html#allocShared,Natural), [deallocShared](http://forum.nim-lang.org///nim-lang.org/docs/system.html#deallocShared,pointer). You can cast the `pointer` from and to [ptr](http://forum.nim-lang.org///nim-lang.org/docs/system.html#ptr) types and then you have your manually managed heap memory. (This is a general answer to how to use non-GC'd memory and has nothing to do with memory regions)
Re: Where do I learn how to program Nim without a GC?
Araq, I dont understand. I'm just now looking into Nimlang. How would I have to change the programming style to program with memory regions in Nim? It can't just be a flag to the compiler, I mean somehow I have to tell Nim when to free memory right?
Re: asynchttpserver and big request body
WIP is here: [https://github.com/vegansk/asyncstreams](https://github.com/vegansk/asyncstreams)
Re: httpclient extraHeaders not working
@dom96: That reminds me that I was going to submit a PR for that...
Re: Concept[T] design question
Hi @boia01, It will be possible to create concepts based on type lists, but I don't consider this a feature of the concepts per se, but rather a general support for variadic generics. You can take a look at this github issue: [https://github.com/nim-lang/Nim/issues/1019](https://github.com/nim-lang/Nim/issues/1019) As explained in the issue, type lists can be emulated right now with a single parameter, expecting a tuple type. Then within the concept, you can have a `static:` block containing arbitrary code for the actual checks. I tried to put something together quickly as an example, but I ran into several issues, so this explanation will have to do for now, sorry.
Re: asynchttpserver and big request body
> Thats why I want to write asyncstreams module for the standard library. What > do you think about it? Sounds like a good idea :)
Re: Nim in Action is now available!
Last chance to get 50% off Nim in Action! Use code `pbbutcherlt`: [https://manning.com/books/nim-in-action?a_aid=niminaction&a_bid=78a27e81](https://manning.com/books/nim-in-action?a_aid=niminaction&a_bid=78a27e81)
Re: Nim in Action is now available!
> Hi @dom96! > Just ordered the book. Thank you for the discount! Thank you for ordering it! > Because now to understand which methods for example the seq type supports the > fastest is to use Internet search. setLen is in system, some others are in > sequtils and etc.etc. Keep reading, i'm pretty sure I talk about seq in that level of detail somewhere. In fact it might even be in the second chapter.
Re: asynchttpserver and big request body
I created the fork of asynchttpserver for the test: [https://github.com/vegansk/asynchttpserver2](https://github.com/vegansk/asynchttpserver2) where you can read entire body using `request.body.readAll`, get the length of the request without reading it via `request.body.len`. And the main feature - you can read it via stream: `request.body.getStream`. And the latter method is bothering me. asynchttpserver is async, standard streams are not. Thats why I want to write asyncstreams module for the standard library. What do you think about it?
Re: asynchttpserver and big request body
Suggest to export the data received at each time, so that users can use this api to customize how their datas are stored (copy to their buffer or disk files).
