297 lines
17 KiB
Scheme
297 lines
17 KiB
Scheme
(define-library
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(foreign c primitives-cyclone)
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(import (scheme base)
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(scheme write)
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(scheme char)
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(scheme file)
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(scheme inexact)
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(scheme process-context)
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(cyclone foreign)
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(scheme cyclone primitives))
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(export size-of-type
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align-of-type
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shared-object-load
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define-c-procedure
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;define-c-callback
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c-bytevector?
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c-bytevector-u8-ref
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c-bytevector-u8-set!
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c-bytevector-pointer-ref
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c-bytevector-pointer-set!)
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(begin
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(define 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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((equal? type 'callback) opaque)
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(else (error "type->native-type -- No such type" type)))))
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(define c-bytevector?
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(lambda (object)
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(opaque? object)))
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(define-syntax define-c-procedure
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(er-macro-transformer
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(lambda (expr rename compare)
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(let* ((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) '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) 'opaque)
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((equal? type 'void) 'c-void)
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((equal? type 'callback) 'opaque)
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(else (error "type->native-type -- No such type" type)))))
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(scheme-name (cadr expr))
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(c-name (symbol->string (car (cdr (car (cdr (cdr (cdr expr))))))))
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(return-type (type->native-type (car (cdr (car (cdr (cdr (cdr (cdr expr)))))))))
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(argument-types
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(let ((types (cadr (car (cdr (cdr (cdr (cdr (cdr expr)))))))))
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(if (null? types)
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'()
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(map type->native-type 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 define-c-callback
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(lambda (scheme-name return-type argument-types procedure)
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(error "define-callback not yet implemented on Cyclone")))
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(define size-of-type
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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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;; FIXME
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(define align-of-type size-of-type)
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(define-c pointer-address
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"(void *data, int argc, closure _, object k, object pointer)"
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"make_c_opaque(opq, &(void*)opaque_ptr(pointer));
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return_closcall1(data, k, &opq);")
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(define pointer-null
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(lambda ()
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(make-opaque)))
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(define-syntax define-c-library
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(syntax-rules ()
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((_ scheme-name headers object-name options)
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(begin
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(define scheme-name #t)
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(shared-object-load headers)))))
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(define-syntax shared-object-load
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(er-macro-transformer
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(lambda (expr rename compare)
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(let* ((headers (cadr (cadr expr)))
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(includes (map
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(lambda (header)
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`(include-c-header ,(string-append "<" header ">")))
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headers)))
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`(,@includes)))))
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(define 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 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2char(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = obj_obj2int(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = double_value(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); *p = double_value(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c c-bytevector-pointer-set!
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"(void *data, int argc, closure _, object k, object pointer, object offset, object value)"
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"uintptr_t* p = opaque_ptr(pointer) + obj_obj2int(offset); *p = (uintptr_t)&opaque_ptr(value); return_closcall1(data, k, make_boolean(boolean_t));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_char2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c 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); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pointer-unsigned-long-get
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"(void *data, int argc, closure _, object k, object pointer, object offset)"
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"unsigned long* p = opaque_ptr(pointer) + obj_obj2int(offset); return_closcall1(data, k, obj_int2obj(*p));")
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(define-c pointer-float-get
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"(void *data, int argc, closure _, object k, object pointer, object offset)"
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"float* p = opaque_ptr(pointer) + obj_obj2int(offset); alloca_double(d, *p); return_closcall1(data, k, d);")
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(define-c pointer-double-get
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"(void *data, int argc, closure _, object k, object pointer, object offset)"
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"double* p = opaque_ptr(pointer) + obj_obj2int(offset); alloca_double(d, *p); return_closcall1(data, k, d);")
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(define-c c-bytevector-pointer-ref
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"(void *data, int argc, closure _, object k, object pointer, object offset)"
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"make_c_opaque(opq, (void*)opaque_ptr(pointer) + obj_obj2int(offset)); return_closcall1(data, k, &opq);")
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(define c-bytevector-u8-set! pointer-uint8-set!)
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(define c-bytevector-u8-ref pointer-uint8-get))))
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