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digitalmars.D - Aerospike wrapper/driver for vibe.d ?

reply Rico Decho <rico.decho gmail.com> writes:
I'm new to the D language, but I really enjoy its execution speed 
and ease of programming, and I'd like to implement the web server 
of my next project in D instead of C++ or Go.

Unfortunately my server needs to communicate with an Aerospike 
database (an ultra-fast open-source distributed database).

Aerospike provides a client API for plenty of languages (C, C++, 
Go, JS, Ruby, Python, etc) but unfortunately not for D.

So I'd like to know if anybody has already begun to build a 
wrapper around Aerospike's C API, preferably one that 
automatically converts class fields to record bins (and 
inversely).

I'm trying to implement this by myself, but honestly it's not 
easy for a newcomer like me...

That's really sad, because IMHO, this driver could definitely 
help D in becoming THE mainstream language for high-performance 
web servers, outperforming even C++ and Go, as obviously the 
Dlang/Aerospike combination feels really optimal for this kind of 
development.
Jan 28 2017
next sibling parent reply rikki cattermole <rikki cattermole.co.nz> writes:
On 28/01/2017 10:15 PM, Rico Decho wrote:

 I'm new to the D language, but I really enjoy its execution speed and
 ease of programming, and I'd like to implement the web server of my next
 project in D instead of C++ or Go.

 Unfortunately my server needs to communicate with an Aerospike database
 (an ultra-fast open-source distributed database).

 Aerospike provides a client API for plenty of languages (C, C++, Go, JS,
 Ruby, Python, etc) but unfortunately not for D.

 So I'd like to know if anybody has already begun to build a wrapper
 around Aerospike's C API, preferably one that automatically converts
 class fields to record bins (and inversely).

 I'm trying to implement this by myself, but honestly it's not easy for a
 newcomer like me...

 That's really sad, because IMHO, this driver could definitely help D in
 becoming THE mainstream language for high-performance web servers,
 outperforming even C++ and Go, as obviously the Dlang/Aerospike
 combination feels really optimal for this kind of development.


I wouldn't worry about writing a wrapper just yet.
Get a binding going first.

If you would like some interactive help jump on to #D on Freenode (IRC).
Jan 28 2017
parent reply Rico Decho <rico.decho gmail.com> writes:
I agree, one step at a time...

Anyway, as I've never used D's type introspection and 
compile-time code generation, my options are quite limited at the 
moment :(
Jan 28 2017
next sibling parent Mike Parker <aldacron gmail.com> writes:
On Saturday, 28 January 2017 at 09:59:10 UTC, Rico Decho wrote:

 I agree, one step at a time...

 Anyway, as I've never used D's type introspection and 
 compile-time code generation, my options are quite limited at 
 the moment :(


You shouldn't need any of that to create a binding to a C API. 
You can manually translate the headers or use a tool like DStep 
[1] to get you most of the way there.

[1] https://github.com/jacob-carlborg/dstep
Jan 28 2017
prev sibling parent reply John Colvin <john.loughran.colvin gmail.com> writes:
On Saturday, 28 January 2017 at 09:59:10 UTC, Rico Decho wrote:

 I agree, one step at a time...

 Anyway, as I've never used D's type introspection and 
 compile-time code generation, my options are quite limited at 
 the moment :(


Binding to C is really, really easy for most cases. E.g. for a 
library
called fancyLib with a C header fancyLib.h

// fancyLib.h, just for reference
struct S
{
     int a, b;
}
char const *fancyCFunction(int a, long b, struct S s);

//fancyLib.d
import core.stdc.config : c_long;
struct S
{
     int a, b;
}
extern(C) const(char)* fancyCFunction(int a, c_long b, S s);

//myCode.d
import fancyLib;
void main()
{
     auto res = fancyCFunction(4, 53, S(1, 1));
}

compile with:
dmd fancyLib.d myCode.d -L-lfancyLib
or add fancyLib to "libs" if you use dub.
Jan 28 2017
parent reply Rico Decho <rico.decho gmail.com> writes:
This afternoon I'll first try using dstep to generate the binding 
automatically.

If that doesn't work as expected, I'll try to bind the main 
functions manually as detailed in the "fancylib" example...

In both cases, at least now I'm confident that I know precisely 
how to proceed, so thanks guys for the tips :)
Jan 28 2017
parent reply Mike Parker <aldacron gmail.com> writes:
On Saturday, 28 January 2017 at 12:34:21 UTC, Rico Decho wrote:

 This afternoon I'll first try using dstep to generate the 
 binding automatically.

 If that doesn't work as expected, I'll try to bind the main 
 functions manually as detailed in the "fancylib" example...

 In both cases, at least now I'm confident that I know precisely 
 how to proceed, so thanks guys for the tips :)


Be sure to pay a visit to the Wiki for some help: 
http://wiki.dlang.org/Bind_D_to_C
Jan 28 2017
parent reply Rico Decho <rico.decho gmail.com> writes:
Actually I think that John's explanations are much more concrete 
and useful than what's in the official docs.

Why not integrate it into D's wiki ?
Jan 28 2017
parent reply Mike Parker <aldacron gmail.com> writes:
On Saturday, 28 January 2017 at 15:01:00 UTC, Rico Decho wrote:

 Actually I think that John's explanations are much more 
 concrete and useful than what's in the official docs.

 Why not integrate it into D's wiki ?


Simply because no one has bothered to do it? The Wiki page links 
to some stuff I wrote over at gamedev.net that covers most of the 
common cases and fills in some stuff I didn't. I also devoted an 
entire chapter to it, where I covered more cases, in Learning D.

If anyone wants to take all of that and combine it into a Wiki 
page, it's fine by me.
Jan 28 2017
parent reply Rico Decho <rico.decho gmail.com> writes:
Thanks for proposing it !

I've just added John's sample code to the wiki (hoping that he 
doesn't mind).
Jan 28 2017
parent John Colvin <john.loughran.colvin gmail.com> writes:
On Saturday, 28 January 2017 at 16:52:29 UTC, Rico Decho wrote:

 Thanks for proposing it !

 I've just added John's sample code to the wiki (hoping that he 
 doesn't mind).


that's fine :)
Jan 30 2017
prev sibling parent reply Rico Decho <rico.decho gmail.com> writes:
I've finally stopped working on Aerospike's wrapper.

My company has finally decided to use another database (probably 
CouchBase).

Anyway, I had noticed an obvious lack of interest of Aerospike's 
company for the D language.

It's not even worth any short answer (even negative) to a request 
for a D client API on their forum.

https://discuss.aerospike.com/t/aerospike-d-client-api/3810
Feb 09 2017
parent reply rikki cattermole <rikki cattermole.co.nz> writes:
On 09/02/2017 9:03 PM, Rico Decho wrote:

 I've finally stopped working on Aerospike's wrapper.

 My company has finally decided to use another database (probably
 CouchBase).

 Anyway, I had noticed an obvious lack of interest of Aerospike's company
 for the D language.

 It's not even worth any short answer (even negative) to a request for a
 D client API on their forum.

 https://discuss.aerospike.com/t/aerospike-d-client-api/3810


I had a look at the other posts on that forum, it isn't exactly active 
by the employees.
Feb 09 2017
parent Rico Decho <rico.decho gmail.com> writes:
Indeed.
Feb 09 2017