I've quickly thrown together the script below; it's probably the most contrary POC example I can build.

The first time I run it it's perfect; it loads the program defined on the command line converts it to C and runs the function created.

The second time it doesn't run the function I ask for; instead it runs the function that I requested the first time. It looks like you're not hashing the C source to get the name of the shared object.

BTW: Moving the body of the code into the prefix successfully works around the problem in this case, but I have to leave a stub bfprog function in the main builder call.

NOTE: On a related note, what do you thing __DATE__ and __TIME__ should do?

#!/usr/bin/ruby
require "inline"
class BFCode
    inline do |builder|

        h = Hash.new{|_, k|
            (k[0] == "+") ? "m[p]+="+k.length.to_s+";\n" :
            (k[0] == "-") ? "m[p]-="+k.length.to_s+";\n" :
            (k[0] == ">") ? "p+="+k.length.to_s+";\n" :
            (k[0] == "<") ? "p-="+k.length.to_s+";\n" :
            (k[0..3] == "[-]+") ? "m[p]="+(k.length-3).to_s+";\n" :
            "#{k}\n" };
        h['[-]'] = "m[p]=0;\n";
        h['>'] = "p+=1;\n";
        h['<'] = "p-=1;\n";
        h['+'] = "m[p]+=1;\n";
        h['-'] = "m[p]-=1;\n";
        h['['] = "while(m[p]!=0){\n";
        h[']'] = "}\n";
        h['.'] = "putchar(m[p]);\n";
        h[','] = "m[p]=getchar();\n";

        bfcode= "void bfprog() {\n" +
                "static unsigned char m[100000]; register int p=0;\n" +
                ARGF.read.
                gsub(/[^\[\]+,-.<>]/,'').
                gsub(/\[\-\]\+*|\++|-+|>+|<+|./,h) +
                "}\n";

        builder.include "<stdio.h>"
        builder.c bfcode
    end
end

BFCode.new().bfprog();

I am trying to use inline with rails! I added a method on array class but when I passed my parameters in my action in my controller I got this error

http://pastie.org/2487427

do you know how can I use inline from a outside file and load it in my controller? I didnt find any example on the internet!

thanks

It would be nice if ZenTest were registered as a development dependency. ZenTest 4.9.0 can only be installed under the latest rubygems version. See seattlerb/zentest#38.

That means in order to use rubyinline on a production server, you have to push that server to the latest rubygems. This is a pretty onerous requirement for a testing dependency.

(crossposted from http://rubyforge.org/tracker/index.php?func=detail&aid=28657&group_id=440&atid=1774, I hope that's not a problem?)

RubyInline defines 'attr_reader :options' on the core Module object. This causes Sass to break (see below if you want
to know the details*)

Would it be possible to not patch core classes in this way? Or if that's absolutely necessary, at least rename it to, say, :rubyinline_options.

* it has a Sass::Plugin module which uses method_missing to forward methods to a compiler object. One of those methods was 'options', but once RubyInline is required, Sass::Plugin.options just returns nil)

After a recent update to a Rails app I'm working on, I found that I cannot load ZenTest and Celluloid together. Still tracking this down more specifically, but here's my initial backtrace:

vendor/bundle/ruby/2.0.0/gems/celluloid-0.15.2/lib/celluloid/actor.rb:55:in `name': not in actor scope (Celluloid::NotActorError)
    from vendor/bundle/ruby/2.0.0/gems/ZenTest-4.9.5/lib/ZenTest.rb:13:in `block in <top (required)>'
    from vendor/bundle/ruby/2.0.0/gems/ZenTest-4.9.5/lib/ZenTest.rb:12:in `each_object'
    from vendor/bundle/ruby/2.0.0/gems/ZenTest-4.9.5/lib/ZenTest.rb:12:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from config/application.rb:7:in `<top (required)>'
    from config/environment.rb:2:in `require'
    from config/environment.rb:2:in `<top (required)>'
    from config.ru:3:in `require'
    from config.ru:3:in `block in <main>'
    from vendor/bundle/ruby/2.0.0/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
    from vendor/bundle/ruby/2.0.0/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
    from config.ru:1:in `new'
    from config.ru:1:in `<main>'

I have an inline C method that's called from a rails page. When I load the page the first time after starting the rails server, it works fine. If I reload the page in the browser, I then get :

LoadError (require on C:/Users/abc def/.ruby_inline/ruby-1.8/Inline__cb89593d1f9fe3ecdb2178215eee80ae.so failed):

The files mentioned does exist. Any ideas ? Is ti due to the space in the windows user name in the path ?

Trying to execute example2.rb as is and get an error:
http://www.pastie.org/3321211

I think it is pretty nice to let the inline code be indented according to Ruby - when in Ruby:

  inline do |builder|
    builder.prefix %{
      #define MATCH(A,B) ((equal[A] & equal[B]) != 0)
    }
  end

The resulting C code will have a lot of extra white space - that does not affect the code, but properly indented code is nicer when debugging. I am pretty sure there is way to auto-correct the indentation in the C code.

This is due to RArray 'ptr' and 'len' which are removed in Ruby 1.9

Since RubyInline doesn't support Bundler's :git feature (doesn't store the gemspec in repo), it would be nice to release the latest version of the library to rubygems.

Hi folks,

Note: I mistakenly filed this at Rubyforge. This new item is per Ryan's instructions.
Note2: Issue #27: "RubyInstaller compatibility" apparently describes the same problem. I'm not qualified to supply the fix, so I haven't included any of the details asked for in that issue.
Now, on with the show:

I'm attempting to use RubyInLine under windows 7 (64 bit). (Other info below.)

My problem occurs trying to run the example script:

ruby example.rb

I get the following:

ruby example.rb
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in gem_original_require': no such file to load -- c:\Users\bwilfley/.ruby_inline/ruby-1.8/Inline_MyTest_957b1a49e8ad50000ecc5982fd89874a.so (LoadError) from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:inrequire'
from C:/Ruby187/lib/ruby/gems/1.8/gems/RubyInline-3.11.3/lib/inline.rb:519:in load' from C:/Ruby187/lib/ruby/gems/1.8/gems/RubyInline-3.11.3/lib/inline.rb:844:ininline'
from example.rb:18

I look in my ~/.ruby_inline\ruby-1.8 directory and I have:
a.exe
Inline_MyTest_957b1a49e8ad50000ecc5982fd89874a.c

Evidently, the .c file is being generated and then compiled. But the file created by the compilation is a.out, not: Inline_MyTest_957b1a49e8ad50000ecc5982fd89874a.so

Any thoughts??

Thanks for your help,

Brian

My configuration is as follows:
Running Ruby 1.8.7 from the Windows one-click installer:
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

I'm using the "DevKit" from the folks who make the installer. This gives me gcc under the mingw32 environment. Before running these tests I set the DevKit environment with:

devkitvars.bat

Here is the gem environment
RubyGems Environment:

• RUBYGEMS VERSION: 1.8.24
• RUBY VERSION: 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]
• INSTALLATION DIRECTORY: C:/Ruby187/lib/ruby/gems/1.8
• RUBY EXECUTABLE: C:/Ruby187/bin/ruby.exe
• EXECUTABLE DIRECTORY: C:/Ruby187/bin
• RUBYGEMS PLATFORMS:
  • ruby
  • x86-mingw32
• GEM PATHS:
  • C:/Ruby187/lib/ruby/gems/1.8
  • c:/Users/bwilfley/.gem/ruby/1.8
• GEM CONFIGURATION:
  • :update_sources => true
  • :verbose => true
  • :benchmark => false
  • :backtrace => false
  • :bulk_threshold => 1000
• REMOTE SOURCES:
  • http://rubygems.org/

I was trying to use https://github.com/kiyoka/fuzzy-string-match which depends on rubyinline on a project and when i deployed to heroku i found out that i couldn't because zentest requires a more modern versions of rake than heroku supports. This isn't really a bug since i don't see heroku deployment a major interest of a gem like this, but I thought I would put this on your radar since you have at least one project downstream that does.

I am trying to add compiler flags. '-w' is working but '-lsqlite3' is not.
I tried printing builder.flags and it shows both '-w' and '-lsqlite3'.
Note: -lsqlite is working fine when I am using it with gcc only.

Please correct me if I'm wrong, but wouldn't it be possible to remove the dependency on ZenTest, since that isn't necessary to run RubyInline? If possible it would be great if the dependency could be axed.

Besides requiring devkit i had to change at line 583 in inline.rb this "("-L#{RbConfig::CONFIG['libdir']}" if sane)" to that ("-L#{RbConfig::CONFIG['libdir']}"). It kept naming the output file in "...ruby_inline\ruby-1.9.1" "a.exe" (standard output if no output destination is provided) until I did so. Therefore the .so RubyInline looked for wasn't found. I don't know if this is a general solution or if it just works for me. But perhaps someone can look into this. And that devkit should be requiered in combination with RubyInstaller should perhaps also be mentioned somewhere in a faq just for ease.

I get the following error when I try to run a test program on windows :

c:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/RubyInline-3.11.0/lib/inline.rb:590:in ``': No such file or directory - gcc -shared -s -Wl,--enable-auto-image-base,--enable-auto-import,--export-all -g -O2 -DFD_SETSIZE=256 -I c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/i386-mingw32 -I c:/RailsInstaller/Ruby1.8.7/include -Lc:/RailsInstaller/Ruby1.8.7/lib -o "C:\Users\zzz/.ruby_inline/ruby-1.8/Inline__cb89593d1f9fe3ecdb2178215eee80ae.so" "C:/Users/zzz/.ruby_inline/ruby-1.8/Inline__cb89593d1f9fe3ecdb2178215eee80ae.c" -Wl,--enable-auto-import -Lc:/RailsInstaller/Ruby1.8.7/lib -lmsvcrt-ruby18 (Errno::ENOENT)
from c:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/RubyInline-3.11.0/lib/inline.rb:590:inbuild' from c:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/RubyInline-3.11.0/lib/inline.rb:826:in inline'
from E:/SR/documents/eclipse/checkup/ruby_trial_code/cinline.rb:13

I've got gcc installed, and the "gcc ..." line above will run with no errors on the command line.

Any ideas ?

Would be nice to be able to use it via bundler + git dependency

I was thinking of trying my hand at building a voxel engine using ruby. I want to build one because I've never done any 3D application building and voxels sound interesting to me.
I want to do it in ruby because well, I like ruby and I understand it.
Thing is ruby is kinda slow so obviously I'd do well to program bits of it in C, so I want to use rubyinline for it.
My question is just, can I use c libraries (like graphic libraries for rendering) within any C inline code, if so how?

My second question is can we access ruby methods from within the C inline code? again, if so how?

I'm mostly just looking for directions to resources that could answer those questions and any others that might spring up.

So far RubyInline uses 4 hex-digits of the hash of the concatenated names of generated routines as a suffix of the c/so file name. I guess this works in 99% of cases, but I have quite uncommon project, which generates the RubyInline code on-the-fly. The problem is that when running tests I have hundreds of RubyInline generated files (one of the routine names if random, to "ensure" that the names of c/so files are different for classes with the same regular routines) and usually I get name collisions, due to the fact that the c/so namespace is too narrow. I guess extending the file name suffix from 4 to 8 hex-digits would solve the issue in 99,99% of cases.
The project is Rod (Ruby Object Database) https://github.com/apohllo/rod

See seattlerb/image_science#15

currently only public function signatures are used for the MD5 calculation. I'm not entirely sure this is necessary, given the amount of logic around rebuilding...

There is a gem named inline, which also defines inline.rb -> its not possile to have both installed.
Rename to e.g. ruby_inline.rb

I find the RubyInline documentation pretty sparse - which is a shame and a hurdle. I suggest augmenting the documentation with this, which has been a great help to me (if one can get around license issues?):

http://www.eqqon.com/index.php/Ruby/Ruby_V1.9_C_Extension

Also, I suggest a cookbook like Perl's:

http://search.cpan.org/~sisyphus/Inline-0.48/C/C-Cookbook.pod

Hello, I dont know how to pass some parameters in rubyinline. I got the code below

inline do |builder|
builder.c_raw '
static VALUE teste(int argc, VALUE argv, VALUE self) {
int w1, w2, w3, w4, w5, w6, cont = 0;
long i, len;
VALUE arr = RARRAY_PTR(self); / vetor */
len = RARRAY_LEN(self); / Tamanho do vetor */

and the call method:

numbers = [1,2,4,3,6,7,8,9,14,17,21,35]

p numbers.teste

teste is the c method that we need to pass some parameters! I really have no idea what I am missing!

could you help me?

thanks

Is the dependency for Zentest of ~> 4.3 correct ? Latest version is 4.6.2.

I've tried to use any builder arguments but I didn't find any argument that works with my typedef. It defines a symbol for true and false in c. it looks like more readable.

typedef int bool;

define TRUE 1

define FALSE 0

do you know if it is possible?

Running rake test on an M1 mac with system ruby reports 6 tests failure, all with the same cause:

TestModule#test_argument_check_more:
LoadError: dlopen([...]/.ruby_inline/ruby-2.6.0/Inline_Foo__Bar_[...].bundle, 0x0009): missing compatible arch in [...]/test_inline.49549/.ruby_inline/ruby-2.6.0/Inline_Foo__Bar_[...].bundle - [...]/test_inline.49549/.ruby_inline/ruby-2.6.0/Inline_Foo__Bar_[...].bundle

I'm extremely new to ruby, but from my understanding the problem is that RbConfig::CONFIG['DLDFLAGS'] contains -arch arm64e, which is an architecture that cannot be used by non-system applications/services at the moment (see here).

Adding -arch arm64 to the cmd inside build fixes the tests. Being a ruby newb, I'm not sure what is the correct way to detect if running on M1. Something like if /arm64/ =~ `arch` should work, but I'm not sure what are the best practices.

Ruby 1.9.3-dev reports Config as deprecated.