380 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Scheme
		
	
	
	
			
		
		
	
	
			380 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Scheme
		
	
	
	
(define pffi-init (lambda () #t))
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(define pffi-type->native-type
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  (lambda (type)
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    (cond ((equal? type 'int8) int)
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          ((equal? type 'uint8) int)
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          ((equal? type 'int16) int)
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          ((equal? type 'uint16) int)
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          ((equal? type 'int32) int)
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          ((equal? type 'uint32) int)
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          ((equal? type 'int64) int)
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          ((equal? type 'uint64) int)
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          ((equal? type 'char) char)
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          ((equal? type 'unsigned-char) char)
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          ((equal? type 'short) int)
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          ((equal? type 'unsigned-short) int)
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          ((equal? type 'int) int)
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          ((equal? type 'unsigned-int) int)
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          ((equal? type 'long) int)
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          ((equal? type 'unsigned-long) int)
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          ((equal? type 'float) float)
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          ((equal? type 'double) double)
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          ((equal? type 'pointer) opaque)
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          ((equal? type 'void) c-void)
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          (else (error "pffi-type->native-type -- No such pffi type" type)))))
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(define pffi-pointer?
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  (lambda (object)
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    (opaque? object)))
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(define-syntax pffi-define
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  (er-macro-transformer
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    (lambda (expr rename compare)
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      (let* ((pffi-type->native-type
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               (lambda (type)
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                 (cond ((equal? type 'int8) 'byte)
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                       ((equal? type 'uint8) 'unsigned-byte)
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                       ((equal? type 'int16) 'int16_t)
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                       ((equal? type 'uint16) 'uint16_t)
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                       ((equal? type 'int32) 'int32)
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                       ((equal? type 'uint32) 'unsigned-int32)
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                       ((equal? type 'int64) 'integer-64)
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                       ((equal? type 'uint64) 'unsigned-integer64)
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                       ((equal? type 'char) 'char)
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                       ((equal? type 'unsigned-char) 'unsigned-char)
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                       ((equal? type 'short) 'short)
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                       ((equal? type 'unsigned-short) 'unsigned-short)
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                       ((equal? type 'int) 'int)
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                       ((equal? type 'unsigned-int) 'unsigned-int)
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                       ((equal? type 'long) 'long)
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                       ((equal? type 'unsigned-long) 'unsigned-long)
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                       ((equal? type 'float) 'float)
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                       ((equal? type 'double) 'double)
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                       ((equal? type 'pointer) 'c-pointer)
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                       ((equal? type 'void) 'void)
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                       (else (error "pffi-type->native-type -- No such pffi type" type)))))
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             (scheme-name (car (cdr expr)))
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             (c-name (symbol->string (car (cdr (car (cdr (cdr (cdr expr))))))))
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             (return-type (pffi-type->native-type (car (cdr (car (cdr (cdr (cdr (cdr expr)))))))))
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             (argument-types
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               (let ((types (cdr (car (cdr (cdr (cdr (cdr (cdr expr)))))))))
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                 (if (null? types)
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                   '()
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                   (map pffi-type->native-type (map car (map cdr types)))))))
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        (if (null? argument-types)
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          `(c-define ,scheme-name ,return-type ,c-name)
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          `(c-define ,scheme-name
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                     ,return-type ,c-name ,@ argument-types))))))
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(define pffi-define-callback
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  (lambda (scheme-name return-type argument-types procedure)
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    (error "pffi-define-callback not yet implemented on Cyclone")))
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(define pffi-size-of
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  (lambda (type)
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    (cond ((equal? type 'int8) (c-value "sizeof(int8_t)" int))
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          ((equal? type 'uint8) (c-value "sizeof(uint8_t)" int))
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          ((equal? type 'int16) (c-value "sizeof(int16_t)" int))
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          ((equal? type 'uint16) (c-value "sizeof(uint16_t)" int))
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          ((equal? type 'int32) (c-value "sizeof(int32_t)" int))
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          ((equal? type 'uint32) (c-value "sizeof(uint32_t)" int))
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          ((equal? type 'int64) (c-value "sizeof(int64_t)" int))
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          ((equal? type 'uint64) (c-value "sizeof(uint64_t)" int))
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          ((equal? type 'char) (c-value "sizeof(char)" int))
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          ((equal? type 'unsigned-char) (c-value "sizeof(unsigned char)" int))
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          ((equal? type 'short) (c-value "sizeof(short)" int))
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          ((equal? type 'unsigned-short) (c-value "sizeof(unsigned short)" int))
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          ((equal? type 'int) (c-value "sizeof(int)" int))
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          ((equal? type 'unsigned-int) (c-value "sizeof(unsigned int)" int))
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          ((equal? type 'long) (c-value "sizeof(long)" int))
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          ((equal? type 'unsigned-long) (c-value "sizeof(unsigned long)" int))
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          ((equal? type 'float) (c-value "sizeof(float)" int))
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          ((equal? type 'double) (c-value "sizeof(double)" int))
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          ((equal? type 'pointer) (c-value "sizeof(void*)" int))
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          (else (error "pffi-size-of -- No such pffi type" type)))))
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(define-c pffi-pointer-allocate
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          "(void *data, int argc, closure _, object k, object size)"
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          "make_c_opaque(opq, malloc(obj_obj2int(size)));
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          return_closcall1(data, k, &opq);")
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(define pffi-pointer-null
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  (lambda ()
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    (make-opaque)))
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(define-c pffi-string->pointer
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          "(void *data, int argc, closure _, object k, object s)"
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          "make_c_opaque(opq, string_str(s));
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          return_closcall1(data, k, &opq);")
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(define-c pffi-pointer->string
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          "(void *data, int argc, closure _, object k, object p)"
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          "make_string(s, opaque_ptr(p));
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          return_closcall1(data, k, &s);")
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(define-syntax pffi-shared-object-load
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  (er-macro-transformer
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    (lambda (expr rename compare)
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      `(begin
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         ,@ (map
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              (lambda (header)
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                `(include-c-header ,(string-append "<" header ">")))
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              (cdr (car (cdr expr))))))))
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(define-c pffi-pointer-free
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          "(void *data, int argc, closure _, object k, object pointer)"
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          "free(opaque_ptr(pointer));
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define pffi-pointer-null?
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  (lambda (pointer)
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    (and (opaque? pointer)
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         (opaque-null? pointer))))
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(define-c pffi-pointer-int8-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "int8_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-uint8-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "uint8_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-int16-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "int16_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-uint16-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "uint16_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-int32-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "int32_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-uint32-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "uint32_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-int64-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "int64_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-uint64-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "uint64_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-char-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "char* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2char(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-short-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "short* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-unsigned-short-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "unsigned short* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-int-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "int* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-unsigned-int-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "unsigned int* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-long-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "long* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-unsigned-long-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "unsigned long* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = obj_obj2int(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-float-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "float* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = double_value(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-double-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "double* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = double_value(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c pffi-pointer-pointer-set!
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          "(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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          "char* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          *p = &opaque_ptr(value);
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          return_closcall1(data, k, make_boolean(boolean_t));")
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(define pffi-pointer-set!
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  (lambda (pointer type offset value)
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    (cond
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      ((equal? type 'int8) (pffi-pointer-int8-set! pointer offset value))
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      ((equal? type 'uint8) (pffi-pointer-uint8-set! pointer offset value))
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      ((equal? type 'int16) (pffi-pointer-int16-set! pointer offset value))
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      ((equal? type 'uint16) (pffi-pointer-uint16-set! pointer offset value))
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      ((equal? type 'int32) (pffi-pointer-int32-set! pointer offset value))
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      ((equal? type 'uint32) (pffi-pointer-uint32-set! pointer offset value))
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      ((equal? type 'int64) (pffi-pointer-int64-set! pointer offset value))
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      ((equal? type 'uint64) (pffi-pointer-uint64-set! pointer offset value))
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      ((equal? type 'char) (pffi-pointer-char-set! pointer offset value))
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      ((equal? type 'short) (pffi-pointer-short-set! pointer offset value))
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      ((equal? type 'unsigned-short) (pffi-pointer-unsigned-short-set! pointer offset value))
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      ((equal? type 'int) (pffi-pointer-int-set! pointer offset value))
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      ((equal? type 'unsigned-int) (pffi-pointer-unsigned-int-set! pointer offset value))
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      ((equal? type 'long) (pffi-pointer-long-set! pointer offset value))
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      ((equal? type 'unsigned-long) (pffi-pointer-unsigned-long-set! pointer offset value))
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      ((equal? type 'float) (pffi-pointer-float-set! pointer offset value))
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      ((equal? type 'double) (pffi-pointer-double-set! pointer offset value))
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      ((equal? type 'pointer) (pffi-pointer-pointer-set! pointer offset value))
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      )))
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(define-c pffi-pointer-int8-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "int8_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-uint8-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "uint8_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-int16-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "int16_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-uint16-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "uint16_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-int32-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "int32_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-uint32-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "uint32_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-int64-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "int64_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-uint64-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "uint64_t* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-char-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "char* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_char2obj(*p));")
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(define-c pffi-pointer-short-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "short* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-unsigned-short-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "unsigned short* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-int-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "int* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-unsigned-int-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "unsigned int* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pffi-pointer-long-get
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          "(void *data, int argc, closure _, object k, object pointer, object offset)"
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          "long* p = opaque_ptr(pointer) + obj_obj2int(offset);
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          return_closcall1(data, k, obj_int2obj(*p));")
 | 
						|
 | 
						|
(define-c pffi-pointer-unsigned-long-get
 | 
						|
          "(void *data, int argc, closure _, object k, object pointer, object offset)"
 | 
						|
          "unsigned long* p = opaque_ptr(pointer) + obj_obj2int(offset);
 | 
						|
          return_closcall1(data, k, obj_int2obj(*p));")
 | 
						|
 | 
						|
(define-c pffi-pointer-float-get
 | 
						|
          "(void *data, int argc, closure _, object k, object pointer, object offset)"
 | 
						|
          "float* p = opaque_ptr(pointer) + obj_obj2int(offset);
 | 
						|
          alloca_double(d, *p);
 | 
						|
          return_closcall1(data, k, d);")
 | 
						|
 | 
						|
(define-c pffi-pointer-double-get
 | 
						|
          "(void *data, int argc, closure _, object k, object pointer, object offset)"
 | 
						|
          "double* p = opaque_ptr(pointer) + obj_obj2int(offset);
 | 
						|
          alloca_double(d, *p);
 | 
						|
          return_closcall1(data, k, d);")
 | 
						|
 | 
						|
(define-c pffi-pointer-pointer-get
 | 
						|
          "(void *data, int argc, closure _, object k, object pointer, object offset)"
 | 
						|
          "make_c_opaque(opq, (void*)opaque_ptr(pointer) + obj_obj2int(offset));
 | 
						|
          return_closcall1(data, k, &opq);")
 | 
						|
 | 
						|
(define pffi-pointer-get
 | 
						|
  (lambda (pointer type offset)
 | 
						|
    (cond
 | 
						|
      ((equal? type 'int8) (pffi-pointer-int8-get pointer offset))
 | 
						|
      ((equal? type 'uint8) (pffi-pointer-uint8-get pointer offset))
 | 
						|
      ((equal? type 'int16) (pffi-pointer-int16-get pointer offset))
 | 
						|
      ((equal? type 'uint16) (pffi-pointer-uint16-get pointer offset))
 | 
						|
      ((equal? type 'int32) (pffi-pointer-int32-get pointer offset))
 | 
						|
      ((equal? type 'uint32) (pffi-pointer-uint32-get pointer offset))
 | 
						|
      ((equal? type 'int64) (pffi-pointer-int64-get pointer offset))
 | 
						|
      ((equal? type 'uint64) (pffi-pointer-uint64-get pointer offset))
 | 
						|
      ((equal? type 'char) (pffi-pointer-char-get pointer offset))
 | 
						|
      ((equal? type 'short) (pffi-pointer-short-get pointer offset))
 | 
						|
      ((equal? type 'unsigned-short) (pffi-pointer-unsigned-short-get pointer offset))
 | 
						|
      ((equal? type 'int) (pffi-pointer-int-get pointer offset))
 | 
						|
      ((equal? type 'unsigned-int) (pffi-pointer-unsigned-int-get pointer offset))
 | 
						|
      ((equal? type 'long) (pffi-pointer-long-get pointer offset))
 | 
						|
      ((equal? type 'unsigned-long) (pffi-pointer-unsigned-long-get pointer offset))
 | 
						|
      ((equal? type 'float) (pffi-pointer-float-get pointer offset))
 | 
						|
      ((equal? type 'double) (pffi-pointer-double-get pointer offset))
 | 
						|
      ((equal? type 'pointer) (pffi-pointer-pointer-get pointer offset))
 | 
						|
    )))
 |