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Moving "after" from Tk to Tcl
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S.C. Chang
Apr 27, 1995, 3:00:00 AM4/27/95
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I hope it's not too late to make this suggestion. I have found recently
that I needed to use "after", together with the CREAT|EXCL option in the
file "open" command, to prevent the file locking semaphore I implemented
using Tcl becoming a CPU hog. However, "after" was the only command I
needed from Tk, it seemed such a waste to bring in the etire Tk windowing
code just for that one command. Also, "after" is really a generic
function, which should not be just tied to the Tk windowing functions.
that I needed to use "after", together with the CREAT|EXCL option in the
file "open" command, to prevent the file locking semaphore I implemented
using Tcl becoming a CPU hog. However, "after" was the only command I
needed from Tk, it seemed such a waste to bring in the etire Tk windowing
code just for that one command. Also, "after" is really a generic
function, which should not be just tied to the Tk windowing functions.
Therefore, its seems to be a reasonable thing to suggest moving "after"
from Tk to Tcl. Is there any possibility this will happen in
Tcl7.4/Tk4.0? Or is there any reason against doing so?
S.C. Chang
GTE Labs
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