142 lines
5.1 KiB
Scheme
142 lines
5.1 KiB
Scheme
(require 'std-ffi)
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;(require "Standard/foreign-stdlib")
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;(require "Lib/Common/system-interface")
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;; FIXME
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(define size-of-type
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(lambda (type)
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(cond ((eq? type 'int8) 1)
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((eq? type 'uint8) 1)
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((eq? type 'int16) 2)
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((eq? type 'uint16) 2)
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((eq? type 'int32) 4)
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((eq? type 'uint32) 4)
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((eq? type 'int64) 8)
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((eq? type 'uint64) 8)
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((eq? type 'char) 1)
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((eq? type 'unsigned-char) 1)
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((eq? type 'short) 2)
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((eq? type 'unsigned-short) 2)
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((eq? type 'int) 4)
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((eq? type 'unsigned-int) 4)
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((eq? type 'long) 4)
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((eq? type 'unsigned-long) 4)
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((eq? type 'float) 4)
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((eq? type 'double) 8)
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((eq? type 'pointer) 4)
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((eq? type 'void) 0)
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((eq? type 'callback) 4)
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(else (error "Can not get size of unknown type" type)))))
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(define c-malloc (foreign-procedure "malloc" '(int) 'void*))
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;(define c-malloc (stdlib/malloc rtd-void*))
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#;(define pffi-pointer-allocate
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(lambda (size)
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(c-malloc size)))
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#;(define c-free (foreign-procedure "free" '(void*) 'int))
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;(define c-malloc (stdlib/malloc rtd-void*))
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#;(define pffi-pointer-free
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(lambda (pointer)
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(c-free pointer)))
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(define pffi-pointer-null (lambda () 0))
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(define pffi-pointer-null?
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(lambda (object)
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(and (number? object)
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(= object 0))))
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(define pffi-pointer?
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(lambda (object)
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;(void*? object)
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(number? object)
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))
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(define pffi-pointer-address
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(lambda (pointer)
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;(void*->address pointer)
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pointer
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))
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(define pffi-pointer->string
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(lambda (pointer)
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;(char*->string pointer)
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pointer
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))
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(define pffi-string->pointer
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(lambda (string-content)
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;(string->char* string-content)
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string-content
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))
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(define pffi-shared-object-load
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(lambda (headers path . options)
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(foreign-file path)))
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(define pffi-pointer-set!
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(lambda (pointer type offset value)
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0
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#;(cond ((equal? type 'int8) (%poke8 (+ pointer offset) value))
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((equal? type 'uint8) (%poke8u (+ pointer offset) value))
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((equal? type 'int16) (%poke16 (+ pointer offset) value))
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((equal? type 'uint16) (%poke16u (+ pointer offset) value))
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((equal? type 'int32) (%poke32 (+ pointer offset) value))
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((equal? type 'uint32) (%poke32u (+ pointer offset) value))
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;((equal? type 'int64) (%poke64 (+ pointer offset) value))
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;((equal? type 'uint64) (%poke64u (+ pointer offset) value))
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((equal? type 'char) (%poke8 (+ pointer offset) value))
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((equal? type 'short) (%poke-short (+ pointer offset) value))
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((equal? type 'unsigned-short) (%poke-ushort (+ pointer offset) value))
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((equal? type 'int) (%poke-int (+ pointer offset) value))
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((equal? type 'unsigned-int) (%poke-uint (+ pointer offset) value))
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((equal? type 'long) (%poke-long (+ pointer offset) value))
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((equal? type 'unsigned-long) (%poke-ulong (+ pointer offset) value))
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;((equal? type 'float) (%poke-ulong (+ pointer offset) value))
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;((equal? type 'double) (pointer-set-c-double! pointer offset value))
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((equal? type 'void) (%poke-pointer (+ pointer offset) value))
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((equal? type 'pointer) (%poke-pointer (+ pointer offset) value)))))
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(define pffi-pointer-get
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(lambda (pointer type offset)
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0
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#;(cond ((equal? type 'int8) (%peek8 (+ pointer offset)))
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((equal? type 'uint8) (%peek8u (+ pointer offset)))
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((equal? type 'int16) (%peek16 (+ pointer offset)))
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((equal? type 'uint16) (%peek16u (+ pointer offset)))
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((equal? type 'int32) (%peek32 (+ pointer offset)))
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((equal? type 'uint32) (%peek32u (+ pointer offset)))
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;((equal? type 'int64) (%peek64 (+ pointer offset)))
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;((equal? type 'uint64) (%peek64u (+ pointer offset)))
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((equal? type 'char) (%peek8 (+ pointer offset)))
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((equal? type 'short) (%peek-short (+ pointer offset)))
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((equal? type 'unsigned-short) (%peek-ushort (+ pointer offset)))
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((equal? type 'int) (%peek-int (+ pointer offset)))
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((equal? type 'unsigned-int) (%peek-uint (+ pointer offset)))
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((equal? type 'long) (%peek-long (+ pointer offset)))
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((equal? type 'unsigned-long) (%peek-ulong (+ pointer offset)))
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;((equal? type 'float) (%peek-ulong (+ pointer offset)))
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;((equal? type 'double) (pointer-set-c-double! pointer offset))
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((equal? type 'void) (%peek-pointer (+ pointer offset)))
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((equal? type 'pointer) (%peek-pointer (+ pointer offset))))))
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(define-syntax pffi-define
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(syntax-rules ()
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((pffi-define scheme-name shared-object c-name return-type argument-types)
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(define scheme-name
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0
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#;(make-c-function shared-object
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(symbol->string c-name)
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return-type
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argument-types)))))
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(define-syntax pffi-define-callback
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(syntax-rules ()
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((pffi-define scheme-name return-type argument-types procedure)
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(define scheme-name
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0
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#;(make-c-callback return-type argument-types procedure)))))
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