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#!/usr/bin/guile \
-e main -s
!#
;; -*-scheme-*-
;;
;; Copyright 2007 Free Software Foundation, Inc.
;;
;; This file is part of GNU Radio
;;
;; GNU Radio is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;;
;; GNU Radio is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License along
;; with this program; if not, write to the Free Software Foundation, Inc.,
;; 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
;;
;; usage: compile-mbh <input-file> <output-file>
(use-modules (ice-9 getopt-long))
(use-modules (ice-9 format))
(use-modules (ice-9 pretty-print))
;(use-modules (ice-9 slib))
(use-modules (gnuradio pmt-serialize))
(use-modules (gnuradio macros-etc))
(debug-enable 'backtrace)
;; ----------------------------------------------------------------
(define (main args)
(define (usage)
(format 0 "usage: ~a input-file output-file~%" (car args)))
(when (not (= (length args) 3))
(usage)
(exit 1))
(let ((input-filename (cadr args))
(output-filename (caddr args)))
(if (compile-mbh-file input-filename output-filename)
(exit 0)
(exit 1))))
;; ----------------------------------------------------------------
;; constructor and accessors for protocol-class
(define %protocol-class-tag (string->symbol "[PROTOCOL-CLASS-TAG]"))
(define (make-protocol-class name incoming outgoing)
(vector %protocol-class-tag name incoming outgoing))
(define (protocol-class? obj)
(and (vector? obj) (eq? %protocol-class-tag (vector-ref obj 0))))
(define (protocol-class-name pc)
(vector-ref pc 1))
(define (protocol-class-incoming pc)
(vector-ref pc 2))
(define (protocol-class-outgoing pc)
(vector-ref pc 3))
;; ----------------------------------------------------------------
(define (syntax-error msg e)
(throw 'syntax-error msg e))
(define (unrecognized-form form)
(syntax-error "Unrecognized form" form))
(define (mbh-chk-length= e y n)
(cond ((and (null? y)(zero? n))
#f)
((null? y)
(syntax-error "Expression has too few subexpressions" e))
((atom? y)
(syntax-error (if (atom? e)
"List expected"
"Expression ends with `dotted' atom")
e))
((zero? n)
(syntax-error "Expression has too many subexpressions" e))
(else
(mbh-chk-length= e (cdr y) (- n 1)))))
(define (mbh-chk-length>= e y n)
(cond ((and (null? y)(< n 1))
#f)
((atom? y)
(mbh-chk-length= e y -1))
(else
(mbh-chk-length>= e (cdr y) (- n 1)))))
(define (compile-mbh-file input-filename output-filename)
(let ((i-port (open-input-file input-filename))
(o-port (open-output-file output-filename)))
(letrec
((protocol-classes '()) ; alist
(lookup-protocol-class ; returns protocol-class or #f
(lambda (name)
(cond ((assq name protocol-classes) => cdr)
(else #f))))
(register-protocol-class
(lambda (pc)
(set! protocol-classes (acons (protocol-class-name pc)
pc protocol-classes))
pc))
(parse-top-level-form
(lambda (form)
(mbh-chk-length>= form form 1)
(case (car form)
((define-protocol-class) (parse-define-protocol-class form))
(else (syntax-error form)))))
(parse-define-protocol-class
(lambda (form)
(mbh-chk-length>= form form 2)
;; form => (define-protocol-class name
;; (:include protocol-class-name)
;; (:incoming list-of-msgs)
;; (:outgoing list-of-msgs))
(let ((name (cadr form))
(incoming '())
(outgoing '()))
(if (lookup-protocol-class name)
(syntax-error "Duplicate protocol-class name" name))
(for-each
(lambda (sub-form)
(mbh-chk-length>= sub-form sub-form 1)
(case (car sub-form)
((:include)
(mbh-chk-length>= sub-form sub-form 2)
(cond ((lookup-protocol-class (cadr sub-form)) =>
(lambda (pc)
(set! incoming (append incoming (protocol-class-incoming pc)))
(set! outgoing (append outgoing (protocol-class-outgoing pc)))))
(else
(syntax-error "Unknown protocol-class-name" (cadr sub-form)))))
((:incoming)
(set! incoming (append incoming (cdr sub-form))))
((:outgoing)
(set! outgoing (append outgoing (cdr sub-form))))
(else
(unrecognized-form (car sub-form)))))
(cddr form))
(register-protocol-class (make-protocol-class name incoming outgoing)))))
) ; end of bindings
(for-each-in-file i-port parse-top-level-form)
;; generate the output here...
(letrec ((classes (map cdr protocol-classes))
(so-stream (make-serial-output-stream))
(format-output-for-c++
(lambda (output)
(format o-port "//~%")
(format o-port "// Machine generated by compile-mbh from ~a~%" input-filename)
(format o-port "//~%")
(format o-port "// protocol-classes: ~{~a ~}~%" (map car protocol-classes))
(format o-port "//~%")
(format o-port "#include <mb_protocol_class.h>~%")
(format o-port "#include <unistd.h>~%")
(format o-port
"static const char~%protocol_class_init_data[~d] = {~% "
(length output))
(do ((lst output (cdr lst))
(i 0 (+ i 1)))
((null? lst) #t)
(format o-port "~a, " (car lst))
(when (= 15 (modulo i 16))
(format o-port "~% ")))
(format o-port "~&};~%")
(format o-port "static mb_protocol_class_init _init_(protocol_class_init_data, sizeof(protocol_class_init_data));~%")
)))
(map (lambda (pc)
(let ((obj-to-dump
(list (protocol-class-name pc) ; class name
(map car (protocol-class-incoming pc)) ; incoming msg names
(map car (protocol-class-outgoing pc)) ; outgoing msg names
;;(protocol-class-incoming pc) ; full incoming msg descriptions
;;(protocol-class-outgoing pc) ; full outgoing msg descriptions
)))
;;(pretty-print obj-to-dump)
(pmt-serialize obj-to-dump (so-stream 'put-byte))))
classes)
(format-output-for-c++ ((so-stream 'get-output)))
#t))))
(define (make-serial-output-stream)
(letrec ((output '())
(put-byte
(lambda (byte)
(set! output (cons byte output))))
(get-output
(lambda ()
(reverse output))))
(lambda (key)
(case key
((put-byte) put-byte)
((get-output) get-output)
(else (error "Unknown key" key))))))
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