From ctian at common-lisp.net  Mon Oct  4 12:04:05 2010
From: ctian at common-lisp.net (Chun Tian (binghe))
Date: Mon, 04 Oct 2010 08:04:05 -0400
Subject: [usocket-cvs] r568 - usocket/trunk
Message-ID: <E1P2jlz-0005wy-VK@common-lisp.net>

Author: ctian
Date: Mon Oct  4 08:04:01 2010
New Revision: 568

Log:
Documentation string of +max-datagram-packet-size+ added.

Modified:
   usocket/trunk/usocket.lisp

Modified: usocket/trunk/usocket.lisp
==============================================================================
--- usocket/trunk/usocket.lisp	(original)
+++ usocket/trunk/usocket.lisp	Mon Oct  4 08:04:01 2010
@@ -11,7 +11,18 @@
 (defparameter *auto-port* 0
   "Port number to pass when an auto-assigned port number is wanted.")
 
-(defconstant +max-datagram-packet-size+ 65507)
+(defconstant +max-datagram-packet-size+ 65507
+  "The theoretical maximum amount of data in a UDP datagram.
+
+The IPv4 UDP packets have a 16-bit length constraint, and IP+UDP header has 28-byte.
+
+IP_MAXPACKET = 65535,       /* netinet/ip.h */
+sizeof(struct ip) = 20,     /* netinet/ip.h */
+sizeof(struct udphdr) = 8,  /* netinet/udp.h */
+
+65535 - 20 - 8 = 65507
+
+(But for UDP broadcast, the maximum message size is limited by the MTU size of the underlying link)")
 
 (defclass usocket ()
   ((socket



From ctian at common-lisp.net  Tue Oct  5 06:20:54 2010
From: ctian at common-lisp.net (Chun Tian (binghe))
Date: Tue, 05 Oct 2010 02:20:54 -0400
Subject: [usocket-cvs] r569 - usocket/trunk
Message-ID: <E1P30tS-0002IU-Qb@common-lisp.net>

Author: ctian
Date: Tue Oct  5 02:20:54 2010
New Revision: 569

Log:
Update TODO

Modified:
   usocket/trunk/TODO   (contents, props changed)

Modified: usocket/trunk/TODO
==============================================================================
--- usocket/trunk/TODO	(original)
+++ usocket/trunk/TODO	Tue Oct  5 02:20:54 2010
@@ -1,4 +1,7 @@
-- Fix condition systems (make all implementation generate same error)
-- Add INET6 support.
-
-For more TODO items, see http://trac.common-lisp.net/usocket/report.
+- Fix condition systems (making all implementation generate same error)
+- Add INET6 support.
+- UDP support for Digitool MCL
+- IOlib backend
+- SOCKET-OPTION (at least :BROADCAST and :READ-TIMEOUT)
+
+For more TODO items, see http://trac.common-lisp.net/usocket/report.