27 Sep
2015
27 Sep
'15
9:19 a.m.
On Sat, Sep 26, 2015 at 4:53 AM, Larry McVoy <lm(a)mcvoy.com> wrote:
On Fri, Sep 25, 2015 at 07:16:41PM -0400, Clem Cole
wrote:
Larry:
This is really interesting. The C-like language you are referring to
here is the "L" language?
The introductory paper linked from here: <http://wiki.tcl.tk/17068> is
giving 404. Would you mind fixing the link or pointing me to another
copy of the paper? My google-fu failed to find a copy of the paper
elsewhere.
Ramakrishnan
Sadly I have heard a number of
stories/expereiences like this. That's why
the original Posix.4 specification had a new API: asynchronous system traps
(AST) similar to what most other real time systems have had such as RSX,
VMS or VxWorks for that matter and true async I/O calls.
Tcl (really tk, but tcl implements it) has this. You bind an event to
a subroutine and when the event happens it jumps into that subroutine,
just like an AST (with similar rules about calling context etc).
Mainly used for GUI programming where it fits nicely but one useful thing
is you can post fake events. That makes it possible to write regressions
for gui code which is *awesome*.
--larry "still using tcl/tk after all these years" mcvoy
P.S. We're not crazy, we implemented a C like language that compiles down