On Tue, Oct 21, 2008 at 1:24 PM, Chun Tian (binghe) <[EMAIL PROTECTED]> wrote: > Hi, usocket-devel > > (testing 0.4 branch) > > In LispWorks Professional and Enterprise Edition, user can save a > image without thread support. When such a lispworks image started, all > function in MP package is there but no thread running: > > [EMAIL PROTECTED]:~$ lispworks-cli > LispWorks(R): The Common Lisp Programming Environment > Copyright (C) 1987-2008 LispWorks Ltd. All rights reserved. > Version 5.1.1 > Saved by binghe as lispworks-5-1-1-64-bit-cli, at 12 Jun 2008 14:50 > User binghe on binghe-debian.local > > CL-USER 1 > (mp:list-all-processes) > NIL > > CL-USER 3 > mp:*current-process* > NIL > > When there's no thread support in LispWorks, USOCKET:WAIT-FOR-INPUT > cannot be used (on non-win32 platform) because it calls MP:PROCESS- > WAIT on current thread, that will cause a UNKNOWN-ERROR:
Nice catch! > USOCKET 9 > (wait-for-input x) > > Error: The condition #<UNKNOWN-ERROR 405008A5B0> occurred > 1 (abort) Return to level 0. > 2 Restart top-level loop. > > Type :b for backtrace, :c <option number> to proceed, or :? for other > options > > USOCKET 10 : 1 > :b > Call to ERROR > Call to RAISE-USOCK-ERR > Call to SIGNAL > Call to ERROR > Call to MP::WITHOUT-PREEMPTION-ERROR > Call to MP:PROCESS-WAIT > Call to WAIT-FOR-INPUT-INTERNAL > Call to WAIT-FOR-INPUT > Call to WAIT-FOR-INPUT > Call to EVAL > > I think may be there're some way not use MP-related function to > achieve the same effect, i.e. direct call select() or turn to use > LispWorks' SYS:WAIT-FOR-INPUT-STREAMS [1] instead (which works on all > platform include win32 but just for stream usocket). Well, that would severely limit the usability of WAIT-FOR-INPUT, because it wouldn't be usable with listening sockets or udp sockets. Could we just error out when someone tries to use WAIT-FOR-INPUT without MP support? I mean... Are there any problems with requiring the apps be built with mp support? (licensing from LW, for example) Bye, Erik. _______________________________________________ usocket-devel mailing list usocket-devel@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/usocket-devel
