"read" routine!

[dahms@ifk20.mach.uni-karlsruhe.de]

Hi Hasmik, you wrote:

: My application starts a Tcl shell and if I issue a Ctrl-C from
: the debugger it exits the program. I have debugged this to the point
: that I think the "read" routine is not behaving like the "read" on the unix
: system. The "read" on NT system returns a 0 (zero) and the Tcl application
: treats that as the end-of-file and exits the program. Shouldn't the "read"
: routine return some sort of error (EINTR)??

I guess it would, but first the default signal handler terminates it.
You should ignore SIGINT or install a handler, maybe  which writes "ouch!"
to fd 2 (stderr). After ^c, (my) programs by default die under Unix, too,
and so does tclsh. And I'm pretty shure tclsh retries after EINTR.
If (debugger == gdb), then under Unix, it doesn't pass SIGINT to the
debuggee by default. Check output of "info signals" on cygwin32 and Unix...


Bye, Heribert (dahms@ifk20.mach.uni-karlsruhe.de)
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