Author: psmith Date: Fri Jan 12 01:44:39 2007 New Revision: 33

Added: branches/home/psmith/restructure/src/protocol/yarpc/yarpc-packet-factory.lisp Modified: branches/home/psmith/restructure/run-yarpc.lisp branches/home/psmith/restructure/src/buffer/buffer.lisp branches/home/psmith/restructure/src/buffer/nio-buffer-package.lisp branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc-package.lisp branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc.asd branches/home/psmith/restructure/src/protocol/yarpc/yarpc-state-machine.lisp branches/home/psmith/restructure/src/statemachine/nio-sm-package.lisp branches/home/psmith/restructure/src/statemachine/state-machine.lisp Log: yarpc progress...

Modified: branches/home/psmith/restructure/run-yarpc.lisp ============================================================================== --- branches/home/psmith/restructure/run-yarpc.lisp (original) +++ branches/home/psmith/restructure/run-yarpc.lisp Fri Jan 12 01:44:39 2007 @@ -1,4 +1,5 @@ (push :nio-debug *features*) (require :asdf) (require :nio-yarpc) + (nio:start-server 'identity 'identity 'nio-yarpc:yarpc-state-machine :host "127.0.0.1")

Modified: branches/home/psmith/restructure/src/buffer/buffer.lisp ============================================================================== --- branches/home/psmith/restructure/src/buffer/buffer.lisp (original) +++ branches/home/psmith/restructure/src/buffer/buffer.lisp Fri Jan 12 01:44:39 2007 @@ -118,33 +118,37 @@ (setf position 0) byte-buffer))

+;reads bytes from byte-buffer and returns a vector (unsigned-byte 8) +(defmethod bytebuffer-read-vector((bb byte-buffer) &optional (num-bytes-to-read (remaining bb))) + (let ((vec (make-uint8-seq num-bytes-to-read))) + (with-slots (buf) bb + (inc-position bb (cffi:mem-read-vector vec (buffer-buf bb) :unsigned-char num-bytes-to-read))) + vec)) + +; Read bytes from bytebuffer abd return a string using the supplied decoding +;TODO move octets-to-string into nio-compat +(defmethod bytebuffer-read-string((bb byte-buffer) &optional (num-bytes-to-read (remaining bb)) (external-format :ascii)) + (sb-ext:octets-to-string (bytebuffer-read-vector bb num-bytes-to-read) :external-format external-format))

-(defmethod get-string((byte-buffer byte-buffer)) - (flip byte-buffer) - (with-slots (position limit buf) byte-buffer - (let ((tmp (make-uint8-seq (remaining byte-buffer)))) - (inc-position byte-buffer (cffi:mem-read-vector tmp buf :unsigned-char limit)) - (format t " read: ~A~%" (sb-ext:octets-to-string tmp :external-format :ascii)) - tmp))) - -;;TODO -;;mem-write-vector (vector ptr type &optional (count (length vector)) (offset 0)) -(defmethod bytebuffer-write-string((byte-buffer byte-buffer) str &optional (index 0) (external-format :ascii)) - :documentation "Returns number of bytes written to bytebuffer" - (bytebuffer-write-vector byte-buffer (sb-ext:string-to-octets str :external-format external-format)))

-;;TODO rename -(defmethod bytebuffer-write-vector((byte-buffer byte-buffer) vec &optional (index 0)) +;; Write bytes from vector vec to bytebuffer +(defmethod bytebuffer-write-vector((bb byte-buffer) vec) :documentation "Returns number of bytes written to bytebuffer" - (if (> (remaining byte-buffer) 0) + (if (> (remaining bb) 0) 0 (progn - (clear byte-buffer) - (let ((bytes-written (cffi:mem-write-vector vec (buffer-buf byte-buffer) :unsigned-char))) + (clear bb) + (let ((bytes-written (cffi:mem-write-vector vec (buffer-buf bb) :unsigned-char))) (format t "bytebuffer-write-vector - byteswritten: ~A" bytes-written) - (inc-position byte-buffer bytes-written) + (inc-position bb bytes-written) bytes-written))))

+;; Writes data from string str to bytebuffer using specified encoding +;TODO move string-to-octets into nio-compat +(defmethod bytebuffer-write-string((bb byte-buffer) str &optional (external-format :ascii)) + :documentation "Returns number of bytes written to bytebuffer" + (bytebuffer-write-vector bb (sb-ext:string-to-octets str :external-format external-format))) +

(cffi:defcfun ("memset" %memset) :pointer (buffer :pointer) @@ -168,7 +172,7 @@

(format t "Remaining ~A~%" (remaining mybuf))

- (format t "mybuf string ~A~%" (get-string mybuf)) + (format t "mybuf string ~A~%" (bytebuffer-read-string mybuf))

(format t "Mybuf (after get-string): ~A~%" mybuf)

Modified: branches/home/psmith/restructure/src/buffer/nio-buffer-package.lisp ============================================================================== --- branches/home/psmith/restructure/src/buffer/nio-buffer-package.lisp (original) +++ branches/home/psmith/restructure/src/buffer/nio-buffer-package.lisp Fri Jan 12 01:44:39 2007 @@ -27,5 +27,5 @@ (defpackage :nio-buffer (:use :cl) (:export - byte-buffer free-buffer remaining inc-position get-string buffer-buf bytebuffer-write-vector bytebuffer-write-string flip + byte-buffer free-buffer remaining inc-position get-string buffer-buf bytebuffer-write-vector bytebuffer-write-string bytebuffer-read-vector bytebuffer-read-string flip ))

Modified: branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc-package.lisp ============================================================================== --- branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc-package.lisp (original) +++ branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc-package.lisp Fri Jan 12 01:44:39 2007 @@ -24,10 +24,10 @@ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |# -(defpackage :nio-yarpc (:use :cl :nio :nio-buffer) +(defpackage :nio-yarpc (:use :cl :nio :nio-sm :nio-buffer) (:export

;; yarpc-state-machine - yarpc-state-machine test-rpc test-rpc-list test-rpc-string + yarpc-state-machine yarpc-state-machine-factory test-rpc test-rpc-list test-rpc-string get-packet-factory ))

Modified: branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc.asd ============================================================================== --- branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc.asd (original) +++ branches/home/psmith/restructure/src/protocol/yarpc/nio-yarpc.asd Fri Jan 12 01:44:39 2007 @@ -5,7 +5,8 @@ (defsystem :nio-yarpc

:components ((:file "nio-yarpc-package") - (:file "yarpc-state-machine" :depends-on ("nio-yarpc-package")) + (:file "yarpc-packet-factory" :depends-on ("nio-yarpc-package")) + (:file "yarpc-state-machine" :depends-on ("yarpc-packet-factory")) )

- :depends-on (:nio)) \ No newline at end of file + :depends-on (:nio :nio-sm)) \ No newline at end of file

Added: branches/home/psmith/restructure/src/protocol/yarpc/yarpc-packet-factory.lisp ============================================================================== --- (empty file) +++ branches/home/psmith/restructure/src/protocol/yarpc/yarpc-packet-factory.lisp Fri Jan 12 01:44:39 2007 @@ -0,0 +1,54 @@ +#| +Copyright (c) 2007 +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +|# +(in-package :nio-yarpc) + +(declaim (optimize (debug 3) (speed 3) (space 0))) + +;; +(defclass yarpc-packet-factory (packet-factory)()) + + +(defun yarpc-packet-factory () + (make-instance 'yarpc-packet-factory)) + +(defconstant CALL-METHOD-PACKET-ID 0) +(defconstant METHOD-RESPONSE-PACKET-ID 1) + +(defmethod get-packet ((pf yarpc-packet-factory) buf) + (nio-buffer:flip buf) +; (format t "get-packet::read string - ~A~%" (bytebuffer-read-string buf (remaining buf))) + (if (>= (remaining buf) 1) ;; First byte denotes packet ID + (ecase (elt (bytebuffer-read-vector buf 1) 0) + (0 (progn (format t "got CALL-METHOD-PACKET-ID~%") (make-instance 'call-method-packet (bytebuffer-read-string buf (remaining buf))))) + (1 (format t "got METHOD-RESPONSE-PACKET-ID~%"))))) + +(defclass call-method-packet (packet)((call-string :initarg :call + :accessor get-call-string))) + +(defclass method-response-packet (packet)()) + +

Modified: branches/home/psmith/restructure/src/protocol/yarpc/yarpc-state-machine.lisp ============================================================================== --- branches/home/psmith/restructure/src/protocol/yarpc/yarpc-state-machine.lisp (original) +++ branches/home/psmith/restructure/src/protocol/yarpc/yarpc-state-machine.lisp Fri Jan 12 01:44:39 2007 @@ -40,8 +40,15 @@ ;; (test-rpc "who" 2 's) ;; response - who 2 'S ;; -(defclass yarpc-state-machine (async-fd)()) +(defclass yarpc-state-machine (state-machine)())

+(defun yarpc-state-machine () + (make-instance 'yarpc-state-machine)) + +(defparameter yarpc-pf (yarpc-packet-factory)) + +(defmethod get-packet-factory((sm yarpc-state-machine)) + yarpc-pf)

;;TODO move somewhere suitable

@@ -74,23 +81,33 @@ (defmethod print-object ((sm yarpc-state-machine) stream) (format stream "#<YARPC-STATE-MACHINE ~A >" (call-next-method sm nil)))

-(defmethod process-read((sm yarpc-state-machine)) - (with-slots (foreign-read-buffer foreign-write-buffer) sm - (let ((fn-result (execute-call (sb-ext:octets-to-string (get-string foreign-read-buffer) :external-format :ascii)))) - (format t "process-read - function result: ~A~%" fn-result) - (nio-buffer:bytebuffer-write-string foreign-write-buffer (write-to-string fn-result) 0 :utf-8) - (close-sm sm)))) +(defconstant STATE-INITIALISED 0) +(defconstant STATE-SEND-RESPONSE 1)

+(defparameter state STATE-INITIALISED)

(define-condition authorization-error (error) ())

-(defun execute-call (call-string) +;Process a call method packet, returns +(defmethod process-packet ((sm yarpc-state-machine) (call call-method-packet)) + ;todo change state, create method-response packet and return it + ;(assert (eql state 0)) (handler-case + (let ((result (execute-call (get-call-string call)))) + (when result + (let ((response-packet (progn + (setf state STATE-SEND-RESPONSE) + (method-response-packet result)))) + (values response-packet t)))) + (reader-error (re) (format t "No such function ~A~%" (get-call-string call))) + (authorization-error (ae) (format t "Function not declared with defremote ~A~%" (get-call-string call))))) + + +(defun execute-call (call-string) (let* ((rpc-call-list (read-from-string call-string )) (fn (member (symbol-function (first rpc-call-list)) *remote-fns* ))) (format t "fn - ~A authorised? : ~A~%" (symbol-function (first rpc-call-list)) fn) (if fn (apply (first rpc-call-list) (rest rpc-call-list)) - (error 'authorization-error))) - (reader-error (re) (format t "No such function ~A~%" call-string)))) + (error 'authorization-error))))

Modified: branches/home/psmith/restructure/src/statemachine/nio-sm-package.lisp ============================================================================== --- branches/home/psmith/restructure/src/statemachine/nio-sm-package.lisp (original) +++ branches/home/psmith/restructure/src/statemachine/nio-sm-package.lisp Fri Jan 12 01:44:39 2007 @@ -29,5 +29,5 @@ (:export

;; state-machine - state-machine + state-machine packet-factory get-packet-factory get-packet ))

Modified: branches/home/psmith/restructure/src/statemachine/state-machine.lisp ============================================================================== --- branches/home/psmith/restructure/src/statemachine/state-machine.lisp (original) +++ branches/home/psmith/restructure/src/statemachine/state-machine.lisp Fri Jan 12 01:44:39 2007 @@ -42,11 +42,30 @@ (defmethod print-object ((sm state-machine) stream) (format stream "#<STATE-MACHINE ~A >" (call-next-method sm nil)))

+(defgeneric process-packet(state-machine packet)) + +(defgeneric get-packet-factory(state-machine)) + (defmethod process-read((sm state-machine)) (with-slots (foreign-read-buffer foreign-write-buffer) sm - (let ((fn-result (execute-call (sb-ext:octets-to-string (get-string foreign-read-buffer) :external-format :ascii)))) - (format t "process-read - function result: ~A~%" fn-result) - (nio-buffer:bytebuffer-write-string foreign-write-buffer (write-to-string fn-result) 0 :utf-8) - (close-sm sm)))) + (let ((incomming-packet (get-packet (get-packet-factory sm) foreign-read-buffer))) + (format t "state-machine::process-read - incomming packet: ~A~%" incomming-packet) + (when incomming-packet + (multiple-value-bind (ret-packet close) (process-packet sm incomming-packet) + (format t "state-machine::process-read - return packet: ~A~%" ret-packet) + (when ret-packet (put-packet ret-packet foreign-write-buffer)) + (if close + (close-sm sm) + )))))) + +

+(defclass packet-factory () + ()) + +; Get the packet in buf using the packet factory +(defgeneric get-packet (packet-factory buf))

+; Write the packet to the buffer +(defun put-packet (packet buf) + (nio-buffer:bytebuffer-write-vector buf (get-bytes packet)))