+;; System initialization
+
+(define (system-beh self . message)
+ (match message
+
+ (('shutdown)
+ (print "## System actor received shutdown message.")
+ (exit 0)
+ 'done)
+
+ (('print strings ...)
+ (apply print strings)
+ 'sleep)
+
+ (('read reader)
+ (mutex-lock! reader-queue-mutex)
+ (fifo-push reader-queue reader)
+ (mutex-unlock! reader-available-mutex)
+ (mutex-unlock! reader-queue-mutex)
+ 'sleep)))
+
+(define (boot-sam)
+ (start-console)
+ (start-network-listener)
+ (send-message (make-actor main-beh) (make-actor system-beh))
+ (start-scheduler))
+
+(define (print-usage)
+ (print "Simple Actor Machine v" sam-version "\n"
+ "\n"
+ "Usage: sam -h|--help\n"
+ " sam [-n hostname] [-p port] source-file-1 [source-file-2 [...]] "))
+
+
+(let loop ((args (cdr (argv))))
+ (match args
+ (((or "-h" "--help"))
+ (print-usage))
+ (((or "-p" "--port") pstr rest ...)
+ (set! sam-port (string->number pstr))
+ (loop rest))
+ (((or "-n" "--hostname") hstr rest ...)
+ (set! sam-host hstr)
+ (loop rest)
+ (((? file-exists? filename) rest ...))
+ (print* "Loading " filename "...")
+ (load filename)
+ (print " done.")
+ (loop rest))
+ (()
+ (boot-sam host port main-beh))
+ (else
+ (print "Unrecognised argument '" (car args) "'.\n")
+ (print-usage))))