236 lines
10 KiB
Scheme
236 lines
10 KiB
Scheme
(define-module foreign.c.primitives.gauche
|
|
(export size-of-type
|
|
shared-object-load
|
|
c-bytevector-u8-set!
|
|
c-bytevector-u8-ref
|
|
;pointer-null
|
|
;pointer-null?
|
|
;make-c-bytevector
|
|
;pointer-address
|
|
c-bytevector?
|
|
c-free
|
|
;pointer-set!
|
|
;pointer-get
|
|
define-c-procedure
|
|
define-c-callback))
|
|
|
|
(select-module foreign.c.primitives.gauche)
|
|
(dynamic-load "foreign/c/lib/gauche")
|
|
|
|
;; FIXME This is copied from types.scm
|
|
(define type->libffi-type-number
|
|
(lambda (type)
|
|
(cond ((equal? type 'int8) 1)
|
|
((equal? type 'uint8) 2)
|
|
((equal? type 'int16) 3)
|
|
((equal? type 'uint16) 4)
|
|
((equal? type 'int32) 5)
|
|
((equal? type 'uint32) 6)
|
|
((equal? type 'int64) 7)
|
|
((equal? type 'uint64) 8)
|
|
((equal? type 'char) 9)
|
|
((equal? type 'unsigned-char) 10)
|
|
((equal? type 'short) 11)
|
|
((equal? type 'unsigned-short) 12)
|
|
((equal? type 'int) 13)
|
|
((equal? type 'unsigned-int) 14)
|
|
((equal? type 'long) 15)
|
|
((equal? type 'unsigned-long) 16)
|
|
((equal? type 'float) 17)
|
|
((equal? type 'double) 18)
|
|
((equal? type 'void) 19)
|
|
((equal? type 'pointer) 20)
|
|
((equal? type 'pointer-address) 21)
|
|
((equal? type 'callback) 22)
|
|
(else (error "Undefined type" type)))))
|
|
|
|
(define size-of-type
|
|
(lambda (type)
|
|
(cond
|
|
((equal? type 'int8) (size-of-int8))
|
|
((equal? type 'uint8) (size-of-uint8))
|
|
((equal? type 'int16) (size-of-int16))
|
|
((equal? type 'uint16) (size-of-uint16))
|
|
((equal? type 'int32) (size-of-int32))
|
|
((equal? type 'uint32) (size-of-uint32))
|
|
((equal? type 'int64) (size-of-int64))
|
|
((equal? type 'uint64) (size-of-uint64))
|
|
((equal? type 'char) (size-of-char))
|
|
((equal? type 'unsigned-char) (size-of-unsigned-char))
|
|
((equal? type 'short) (size-of-short))
|
|
((equal? type 'unsigned-short) (size-of-unsigned-short))
|
|
((equal? type 'int) (size-of-int))
|
|
((equal? type 'unsigned-int) (size-of-unsigned-int))
|
|
((equal? type 'long) (size-of-long))
|
|
((equal? type 'unsigned-long) (size-of-unsigned-long))
|
|
((equal? type 'float) (size-of-float))
|
|
((equal? type 'double) (size-of-double))
|
|
((equal? type 'string) (size-of-string))
|
|
((equal? type 'pointer) (size-of-pointer))
|
|
((equal? type 'void) (size-of-void)))))
|
|
|
|
#;(define shared-object-load
|
|
(lambda (path options)
|
|
(shared-object-load path)))
|
|
|
|
#;(define make-c-bytevector
|
|
(lambda (size)
|
|
(pointer-allocate size)))
|
|
|
|
(define c-bytevector?
|
|
(lambda (pointer)
|
|
(pointer? pointer)))
|
|
|
|
#;(define c-free
|
|
(lambda (pointer)
|
|
(pointer-free pointer)))
|
|
|
|
(define c-bytevector-u8-set! pointer-set-uint8!)
|
|
(define c-bytevector-u8-ref pointer-get-uint8)
|
|
|
|
(define pointer-set!
|
|
(lambda (pointer type offset value)
|
|
(cond ((equal? type 'int8) (pointer-set-int8! pointer offset value))
|
|
((equal? type 'uint8) (pointer-set-uint8! pointer offset value))
|
|
((equal? type 'int16) (pointer-set-int16! pointer offset value))
|
|
((equal? type 'uint16) (pointer-set-uint16! pointer offset value))
|
|
((equal? type 'int32) (pointer-set-int32! pointer offset value))
|
|
((equal? type 'uint32) (pointer-set-uint32! pointer offset value))
|
|
((equal? type 'int64) (pointer-set-int64! pointer offset value))
|
|
((equal? type 'uint64) (pointer-set-uint64! pointer offset value))
|
|
((equal? type 'char) (pointer-set-char! pointer offset value))
|
|
((equal? type 'short) (pointer-set-short! pointer offset value))
|
|
((equal? type 'unsigned-short) (pointer-set-unsigned-short! pointer offset value))
|
|
((equal? type 'int) (pointer-set-int! pointer offset value))
|
|
((equal? type 'unsigned-int) (pointer-set-unsigned-int! pointer offset value))
|
|
((equal? type 'long) (pointer-set-long! pointer offset value))
|
|
((equal? type 'unsigned-long) (pointer-set-unsigned-long! pointer offset value))
|
|
((equal? type 'float) (pointer-set-float! pointer offset value))
|
|
((equal? type 'double) (pointer-set-double! pointer offset value))
|
|
((equal? type 'void) (pointer-set-pointer! pointer offset value))
|
|
((equal? type 'pointer) (pointer-set-pointer! pointer offset value)))))
|
|
|
|
(define pointer-get
|
|
(lambda (pointer type offset)
|
|
(cond ((equal? type 'int8) (pointer-get-int8 pointer offset))
|
|
((equal? type 'uint8) (pointer-get-uint8 pointer offset))
|
|
((equal? type 'int16) (pointer-get-int16 pointer offset))
|
|
((equal? type 'uint16) (pointer-get-uint16 pointer offset))
|
|
((equal? type 'int32) (pointer-get-int32 pointer offset))
|
|
((equal? type 'uint32) (pointer-get-uint32 pointer offset))
|
|
((equal? type 'int64) (pointer-get-int64 pointer offset))
|
|
((equal? type 'uint64) (pointer-get-uint64 pointer offset))
|
|
((equal? type 'char) (integer->char (pointer-get-char pointer offset)))
|
|
((equal? type 'short) (pointer-get-short pointer offset))
|
|
((equal? type 'unsigned-short) (pointer-get-unsigned-short pointer offset))
|
|
((equal? type 'int) (pointer-get-int pointer offset))
|
|
((equal? type 'unsigned-int) (pointer-get-unsigned-int pointer offset))
|
|
((equal? type 'long) (pointer-get-long pointer offset))
|
|
((equal? type 'unsigned-long) (pointer-get-unsigned-long pointer offset))
|
|
((equal? type 'float) (pointer-get-float pointer offset))
|
|
((equal? type 'double) (pointer-get-double pointer offset))
|
|
((equal? type 'void) (pointer-get-pointer pointer offset))
|
|
((equal? type 'pointer) (pointer-get-pointer pointer offset)))))
|
|
|
|
#;(define type->libffi-type
|
|
(lambda (type)
|
|
(cond ((equal? type 'int8) (get-ffi-type-int8))
|
|
((equal? type 'uint8) (get-ffi-type-uint8))
|
|
((equal? type 'int16) (get-ffi-type-int16))
|
|
((equal? type 'uint16) (get-ffi-type-uint16))
|
|
((equal? type 'int32) (get-ffi-type-int32))
|
|
((equal? type 'uint32) (get-ffi-type-uint32))
|
|
((equal? type 'int64) (get-ffi-type-int64))
|
|
((equal? type 'uint64) (get-ffi-type-uint64))
|
|
((equal? type 'char) (get-ffi-type-char))
|
|
((equal? type 'unsigned-char) (get-ffi-type-uchar))
|
|
((equal? type 'bool) (get-ffi-type-int8))
|
|
((equal? type 'short) (get-ffi-type-short))
|
|
((equal? type 'unsigned-short) (get-ffi-type-ushort))
|
|
((equal? type 'int) (get-ffi-type-int))
|
|
((equal? type 'unsigned-int) (get-ffi-type-uint))
|
|
((equal? type 'long) (get-ffi-type-long))
|
|
((equal? type 'unsigned-long) (get-ffi-type-ulong))
|
|
((equal? type 'float) (get-ffi-type-float))
|
|
((equal? type 'double) (get-ffi-type-double))
|
|
((equal? type 'void) (get-ffi-type-void))
|
|
((equal? type 'pointer) (get-ffi-type-pointer))
|
|
((equal? type 'callback) (get-ffi-type-pointer)))))
|
|
|
|
#;(define type->libffi-type
|
|
(lambda (type)
|
|
(cond ((equal? type 'int8) 1)
|
|
((equal? type 'uint8) 2)
|
|
((equal? type 'int16) 3)
|
|
((equal? type 'uint16) 4)
|
|
((equal? type 'int32) 5)
|
|
((equal? type 'uint32) 6)
|
|
((equal? type 'int64) 7)
|
|
((equal? type 'uint64) 8)
|
|
((equal? type 'char) 9)
|
|
((equal? type 'unsigned-char) 10)
|
|
((equal? type 'bool) 11)
|
|
((equal? type 'short) 12)
|
|
((equal? type 'unsigned-short) 13)
|
|
((equal? type 'int) 14)
|
|
((equal? type 'unsigned-int) 15)
|
|
((equal? type 'long) 16)
|
|
((equal? type 'unsigned-long) 17)
|
|
((equal? type 'float) 18)
|
|
((equal? type 'double) 19)
|
|
((equal? type 'void) 20)
|
|
((equal? type 'pointer) 21)
|
|
((equal? type 'callback) 21))))
|
|
|
|
#;(define argument->pointer
|
|
(lambda (value type)
|
|
(cond ((procedure? value) (scheme-procedure-to-pointer value))
|
|
(else (let ((pointer (make-c-bytevector (size-of-type type))))
|
|
(pointer-set! pointer type 0 value)
|
|
pointer)))))
|
|
|
|
(define make-c-function
|
|
(lambda (shared-object c-name return-type argument-types)
|
|
(dlerror) ;; Clean all previous errors
|
|
(let ((c-function (dlsym shared-object c-name))
|
|
(maybe-dlerror (dlerror)))
|
|
(lambda arguments
|
|
(display "Calling: ")
|
|
(write c-name)
|
|
(newline)
|
|
(let ((return-pointer (internal-ffi-call (length argument-types)
|
|
(type->libffi-type-number return-type)
|
|
(map type->libffi-type-number argument-types)
|
|
c-function
|
|
(size-of-type return-type)
|
|
arguments)))
|
|
(cond ((equal? return-type 'pointer)
|
|
(display "SCM return value: ")
|
|
(write return-pointer)
|
|
(newline)
|
|
return-pointer)
|
|
((not (equal? return-type 'void))
|
|
(display "SCM return value: ")
|
|
(write (pointer-get return-pointer return-type 0))
|
|
(newline)
|
|
(pointer-get return-pointer return-type 0))))))))
|
|
|
|
(define-syntax define-c-procedure
|
|
(syntax-rules ()
|
|
((_ scheme-name shared-object c-name return-type argument-types)
|
|
(define scheme-name
|
|
(make-c-function shared-object
|
|
(symbol->string c-name)
|
|
return-type
|
|
argument-types)))))
|
|
|
|
(define make-c-callback
|
|
(lambda (return-type argument-types procedure)
|
|
(scheme-procedure-to-pointer procedure)))
|
|
|
|
(define-syntax define-c-callback
|
|
(syntax-rules ()
|
|
((_ scheme-name return-type argument-types procedure)
|
|
(define scheme-name
|
|
(make-c-callback return-type 'argument-types procedure)))))
|