[armedbear-ticket] [armedbear] #251: ffi callbacks don't unbox integer values

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armedbear

19 Oct 2012 19 Oct '12

5:35 a.m.

#251: ffi callbacks don't unbox integer values -----------------------+---------------------------------------------------- Reporter: sboukarev | Owner: nobody Type: defect | Status: new Priority: major | Milestone: 1.1.0 Component: java | Version: 1.1.0-dev Keywords: | -----------------------+---------------------------------------------------- It very well may be a cffi issue.

Compile the following C code with gcc -shared test.c -o test.so

{{{ #ifdef WIN32 #define DLLEXPORT __declspec(dllexport) #else #define DLLEXPORT #endif

DLLEXPORT short test(short (*f)(short, short)) { return f(23, 24); } }}}

Then

{{{ (cffi:load-foreign-library "/tmp/test.so")

(cffi:defcfun test :short (function :pointer))

(cffi:defcallback (test-callback) :short ((a :short) (b :short)) (+ a b))

}}}

And finally

{{{ (test (cffi:get-callback 'test-callback)) => The value #<java.lang.Short 23 {5EE76547}> is not of type NUMBER. }}}

That's on 64-bit x86 linux, with OpenJDK 1.6.0_24 and jna downloaded by maven.

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251 armedbear http://common-lisp.net/project/armedbear armedbear

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armedbear

19 Oct 19 Oct

5:35 a.m.

* cc: stassats@… (added)

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:1 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

7:38 a.m.

#251: ffi callbacks don't unbox integer values --------------------------------+------------------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: new Priority: major | Milestone: 1.1.0 Component: libraries | Version: 1.1.0-dev Keywords: quicklisp cffi jna | --------------------------------+------------------------------------------- Changes (by mevenson):

* keywords: => quicklisp cffi jna * owner: nobody => mevenson * component: java => libraries

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:2 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

22 Oct 22 Oct

7:36 p.m.

#251: ffi callbacks don't unbox integer values --------------------------------+------------------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: accepted Priority: critical | Milestone: 1.1.0 Component: libraries | Version: 1.1.0-dev Keywords: quicklisp cffi jna | --------------------------------+------------------------------------------- Changes (by mevenson):

* priority: major => critical * status: new => accepted

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:3 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

10 Nov 10 Nov

10:12 p.m.

#251: ffi callbacks don't unbox integer values --------------------------------------------+------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: accepted Priority: major | Milestone: 1.1.0 Component: libraries | Version: 1.1.0-dev Keywords: hunchentoot quicklisp cffi jna | --------------------------------------------+------------------------------- Changes (by mevenson):

* keywords: quicklisp cffi jna => hunchentoot quicklisp cffi jna * priority: critical => major

Comment:

Need some basic macrology--and a reasonable abstraction of type-- in [ABCL's cffi-sys:convert-args-to-lisp-values][cffi-abcl]

[cffi-abcl]: https://github.com/easye/cffi/commit/c630aaf3b41501d3d2ac60b94461f96627fce62...

No longer critical, as CL+SSL at least sort of loads. Callbacks still fail (sometimes) until the types are properly reasoned about.

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:4 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

10:39 p.m.

New subject: [armedbear-ticket] [armedbear] #251: CFFI callbacks don't unbox integer values (was: ffi callbacks don't unbox integer values)

#251: CFFI callbacks don't unbox integer values --------------------------------------------+------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: accepted Priority: major | Milestone: 1.1.1 Component: libraries | Version: 1.1.0-dev Keywords: hunchentoot quicklisp cffi jna | --------------------------------------------+------------------------------- Changes (by mevenson):

* milestone: 1.1.0 => 1.1.1

Comment:

Problem is with upstream cffi abcl implementation, so does not block abcl-1.1.

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:5 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

9 Dec 9 Dec

1:15 p.m.

New subject: [armedbear-ticket] [armedbear] #251: CFFI callbacks don't unbox integer values

#251: CFFI callbacks don't unbox integer values -------------------------+-------------------------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: closed Priority: major | Milestone: 1.1.0 Component: libraries | Version: 1.1.0-dev Resolution: worksforme | Keywords: hunchentoot quicklisp cffi jna -------------------------+-------------------------------------------------- Changes (by mevenson):

* status: accepted => closed * resolution: => worksforme * milestone: 1.1.1 => 1.1.0

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:6 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

19 Dec 19 Dec

10:27 a.m.

New subject: [armedbear-ticket] [armedbear] #251: CFFI callbacks don't unbox integer values

#251: CFFI callbacks don't unbox integer values -------------------------+-------------------------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: closed Priority: major | Milestone: 1.2.0 Component: libraries | Version: 1.1.0-dev Resolution: worksforme | Keywords: hunchentoot quicklisp cffi jna -------------------------+-------------------------------------------------- Changes (by mevenson):

* milestone: 1.1.0 => 1.2.0

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:7 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

10:27 a.m.

New subject: [armedbear-ticket] [armedbear] #251: CFFI callbacks don't unbox integer values

#251: CFFI callbacks don't unbox integer values ------------------------+--------------------------------------------------- Reporter: sboukarev | Owner: mevenson Type: defect | Status: reopened Priority: major | Milestone: 1.2.0 Component: libraries | Version: 1.1.0-dev Resolution: | Keywords: hunchentoot quicklisp cffi jna ------------------------+--------------------------------------------------- Changes (by mevenson):

* status: closed => reopened * resolution: worksforme =>

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:8 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

10:27 a.m.

New subject: [armedbear-ticket] [armedbear] #251: CFFI callbacks don't unbox integer values

Comment(by mevenson):

pointerp and null-pointer-p don't work on non-pointers

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:9 armedbear http://common-lisp.net/project/armedbear armedbear

armedbear

10:43 a.m.

New subject: [armedbear-ticket] [armedbear] #251: CFFI callbacks don't unbox integer values

Comment(by sboukarev):

pointerp and null-pointer-p are not related. The problem now with the return value from the callback.

JNA: Callback $Proxy2@7dc6a657 threw the following exception: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short

-- Ticket URL: http://trac.common-lisp.net/armedbear/ticket/251#comment:10 armedbear http://common-lisp.net/project/armedbear armedbear

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armedbear