The project wants to provide a portable TCP/IP and UDP/IP socket
interface for as many Common Lisp implementations as possible,
while keeping the abstraction and portability layer as thin as
possible. IPv6 support is partially available for LispWorks,
SBCL and CCL, etc.
Because trivial-sockets
has been declared dead and its author has said he will declare
usocket its successor if there is a zero effort path of migration,
I'm also working on trivial-usocket which is
supposed to be a sub-optimal, but zero effort migration from
trivial-sockets.
If your lisp isn't mentioned in the list below, please feel free
to submit a request for it at the mailing list mentioned below.
Comparison to other socket libraries
Since usocket is effectively the successor to trivial-sockets,
see the feature comparison
with trivial-sockets in order to find out which one you should
use.
After starting the project, many others turned out to have worked
on something alike, many times as part of a broader project or
library. Some of them were known at the start of this project,
others have been conceived after the usocket project already
started. Not all of them have exactly the same portability goal.
See the Implementation
comparison page for a comparison of the portability of other
libraries and how that relates to usocket.
This project has started January 2006. There isn't much of a
community yet, though I'd like there to be one. So, you're invited
to join the mailing list, announce yourself and even join the
effort!
Development will at least follow the steps outlined below. Yet
to be determined is whether the currently mentioned steps will
be enough to release version 1.0. Possibly, UDP sockets remain
to be addressed before doing 1.0; that will depend on your
reactions :-)
The targeted implementations listed in the status table below
are not a final list: others can be added if/when the need or
interest arises.
Please send patches, bug reports and suggestions to the
development mailing list address given above. The table below
indicates the current state of development.
The interfaces currently published in the :export part of the
package definition are guaranteed to stay compatible for the
entire 0.x lifecycle. Extention in a backward compatible way is of
course valid, as is the addition of new interface functions.
New API: SOCKET-OPTION; Add support
for ECL DFFI mode; bugfix for LispWorks, CLISP, ABCL, ECL.
Feb 27, 2012
0.5.5
LispWorks 6.1 compatibility;
SOCKET-CONNECT argument :nodelay can now set to
:if-supported
Oct 1, 2011
0.5.4
Minor fixes for ECL, Allegro
CL modern mode, and SBCL.
Aug 13, 2011
0.5.3
Fixed "SBCL data flush
problem"; Important fixes for MCL and LispWorks (delivery
mode).
May 11, 2011
0.5.2
Fixed WAIT-FOR-INPUT for
CLISP which made Hunchentoot working; Lots of bugfix for
SBCL, ECL, ABCL and LispWorks.
Apr 2, 2011
0.5.1
Improved CLISP support using FFI; Lots of
bugfix for CMUCL, SBCL, LispWorks, etc.
Mar 12, 2011
0.5.0
UDP support; Lots of bugfixes since 0.4.1; support
for WAIT-FOR-INPUT for SBCL and ECL on Win32; new platform
added: Macintosh Common Lisp (5.0 and up)
Dec 27, 2008
0.4.1
fixes for ECL, LispWorks, SBCL, SCL
Oct 28, 2008
0.4.0
select()-like api: make a single thread wait for
multiple sockets. various socket options for socket-creation with
SOCKET-CONNECT.
Jun 21, 2008
0.3.6
Code fixups based on advice from the ECL and OpenMCL
maintainers. New exported symbols: WITH-MAPPED-CONDITIONS,
NS-CONDITION, NS-ERROR, NS-UNKNOWN-ERROR and
NS-UNKNOWN-CONDITION.
Jul 25, 2007
0.3.4
Fix clisp get-host-name, multiple ECL fixes.
Jun 05, 2007
0.3.3
Fix where host resolution routine was unable to resolve
would return NIL instead of erroring.
Mar 04, 2007
0.3.2
Fixes for many backends related to closing sockets.
LispWorks fix for broken server sockets. API guarantee
adjustments in preparation of porting Drakma.
Feb 28, 2007
0.3.1
fixed with-server-socket; prevent creation of invalid
sockets; 2 more convenience macros.
Feb 26, 2007
re-release
Re-release of 0.2.3, 0.2.4, 0.2.5 and 0.3.0 tarballs
because the originals included Subversion administration
areas.
Jan 21, 2007
0.3.0
Server sockets
Jan 19, 2007
0.2.5
Allegro compilation fix.
Jan 17, 2007
0.2.4
Various fixes for CMUCL, OpenMCL, Allegro and LispWorks.
Jan 04, 2007
0.2.3
Add :element-type support to support stacking
flexi-streams on socket streams for portable
:external-format support.
Jan 03, 2007
0.2.2
Add ECL support and a small SBCL bugfix.
Dec 21, 2006
0.2.1
Remove 'open-stream' interface which is supposed to be
provided by the 'trivial-usocket' package.
Dec 18, 2006
0.2.0
Add support for Scieneer
Common Lisp, fix issue
#6 and API preparation for server side sockets (not in
this release)
Long ago the project was conceived and started by Erik Enge in an
attempt to factor out all implementation specific sockets code
from cl-irc. This 'long ago' must
have been way before 2003 when I entered the cl-irc project.
In January 2006, Erik Huelsmann found Erik Enge willing to donate
the code he had still laying around to restart the project. The
restart took place at the 27th of January when the old code was
imported into the public repository.
Starting from 2008, Chun Tian (binghe) joined into usocket
development team with his UDP/IP code base.
With 0.6.0 release, this project, "where it started as an
intersection of the functionality available on different
platforms, now slowly moving to the union of all functionality
available on all different implementations" (Erik Huelsmann).
With 0.6.2 release, Hans Huebner added basic IPv6 support for
SBCL and Clozure CL, based on the IPv6 feature provided in new
versions of SBCL/CCL and LispWorks.
