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1113 discussions

[cffi-devel] "How would you like to have your ad on 2 Million Websites ?"
by Blog＠common-lisp.net 23 May '07

23 May '07

Discover the power of the Blog Blaster! Brandnew software revolutionizes the power of online advertising -never seen before!- BRAND NEW FOR MARCH 2007! How would you like 2 Million Sites linking to your ad ? Weblog or blog population is exploding around the world, resembling the growth of e-mail users in the 1990s. Post your ads where people read them! - What if you could place your ad on all these sites ? Right, that would mean you would have millions of sites linking to your ad - and my idea actually works. I have developed a software that automatically places your ad on millions of blogs. You will receive thousands of targeted hits to your website as Blog Blaster places your ad on blogs that match your ad's category. This method has never been released to the public before. Very few, if anyone has implemented this For full details please read the attached .html file Unsubscibe: Please read the attached .txt file

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[cffi-devel] Non-top level defcallback
by Tomas Melchior 23 May '07

23 May '07

Hi, What exactly is the current state of non-top level callbacks for CFFI? Something like: (let ((x 10)) (defcallback mycallback ....)) What platforms/implementations support this? The manual only says "some Lisps". Also, is there anything analogous to lambda for defcallback? regards, Tomas.

3 2

[cffi-devel] translate-from-foreign
by Luke Crook 23 May '07

23 May '07

I'm trying to use translate-from-foreign on an enum. The enum returns :RM-TRUE which I would like to convert to T, and :RM-FALSE and :RM-WHACKED which I would like to convert to NIL. But CFFI does not seem to support translate-from- foreign for types created with DEFCENUM. Is this observation correct? (defmethod translate-from-foreign (value (type (eql 'rm-enum))) (case value (1 t) ((-1 0) nil) (otherwise (cffi:foreign-enum-keyword 'rm-enum value)))) (cffi:defcenum #.(openrm-lispify "RMenum" 'enumname) (#.(openrm-lispify "RM_WHACKED" 'enumvalue :keyword) -1) (#.(openrm-lispify "RM_FALSE" 'enumvalue :keyword) 0) (#.(openrm-lispify "RM_TRUE" 'enumvalue :keyword) 1) (#.(openrm-lispify "RM_NATIVE_OPENGL" 'enumvalue :keyword) #x010) (#.(openrm-lispify "RM_MESA_OPENGL" 'enumvalue :keyword) #x011) (#.(openrm-lispify "RM_HARDWARE" 'enumvalue :keyword) #x020) (#.(openrm-lispify "RM_SOFTWARE" 'enumvalue :keyword) #x021) ... - Luke

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[cffi-devel] defcenum values not evaluated
by Lawrence Nakamura 22 May '07

22 May '07

Hi cffi-devel, In the defcenum macro, the values don't seem to be evaluated. Is this behavior a bug or a feature? On clisp, [4]> (cffi:defcenum test (:a 1) (:b (* 2 2))) *** - The value of CFFI::VALUE should be of type INTEGER. The value is: (* 2 2) thanks, Lawrence Nakamura

3 2

[cffi-devel] with-foreign-objects change
by Frank Buss 18 May '07

18 May '07

Hi, I think in src/types.lisp the macro should be (defmacro with-foreign-objects (bindings &body body)... instead of (defmacro with-foreign-objects (bindings &rest body)... because this does the right indention of the body, when auto-formatting. Regards, Frank

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[cffi-devel] foreign-alloc and structure size
by Tamas K Papp 17 May '07

17 May '07

How can I query the size of a structure (defined with defcstruct) for foreign-alloc? Tamas

2 1

[cffi-devel] passing a list of numbers to double *
by Tamas K Papp 17 May '07

17 May '07

Hi, I have a function that looks like this: void myfunction(const double *values, int num_values); that expects a C array of doubles along with its length. SWIG generated the CFFI interface (cffi:defcfun ("myfunction" myfunction) :void (values :pointer) (num_values :int)) Imagine that I have a list '(1d0 2d0 3d0). What is the easiest way to call this function with these values? I am reading the CFFI documentation, but could not find this, sorry if this is an obvious question, just please point me in the right direction. Thanks, Tamas

2 1

[cffi-devel] unicode
by Tamas K Papp 16 May '07

16 May '07

Hi, What is the suggested method to pass unicode strings (const char* pointing to an utf8 string) to C functions in CFFI? I am using CMUCL. Thanks, Tamas

2 1

[cffi-devel] getting CFFI function signature
by Tamas K Papp 14 May '07

14 May '07

Hi, I have CFFI bindings generated by SWIG, which look like (cffi:defcfun ("cairo_line_to" cairo_line_to) :void (cr :pointer) (x :double) (y :double)) I would like to generate wrapper functions that would take the first argument from a global variable and apply conversions for the rest. The problem is that there are many functions, and I want to automate this as much as possible. Is there any way to get the signature of a function defined with cffi:defcfun? In this case, I need something like (:void cr :pointer x :double y: double) (of course the syntax and the ordering can vary). With this, I could automate the generation of wrappers. Thanks, Tamas

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[cffi-devel] How to get free quality visitors to your website
by Hit＠common-lisp.net 08 May '07

08 May '07

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