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| author | Steve Bennett <steveb@workware.net.au> | 2016-10-20 15:06:09 +1000 |
|---|---|---|
| committer | Steve Bennett <steveb@workware.net.au> | 2016-10-26 19:44:15 +1000 |
| commit | 4bf945c9e873434f84fa55721cfaad76b11b2356 (patch) | |
| tree | e4c172da62a9a268508cf72e6e0343b27fafc67d | |
| parent | b464e52b99e0a44d8a0fae616b193bd2250e209b (diff) | |
| download | jimtcl-4bf945c9e873434f84fa55721cfaad76b11b2356.zip jimtcl-4bf945c9e873434f84fa55721cfaad76b11b2356.tar.gz jimtcl-4bf945c9e873434f84fa55721cfaad76b11b2356.tar.bz2 | |
examples/tip.tcl: Gracefully handle serial port being removed
e.g. a usb-serial port
Signed-off-by: Steve Bennett <steveb@workware.net.au>
| -rwxr-xr-x | examples/tip.tcl | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/examples/tip.tcl b/examples/tip.tcl index 3de25e3..61ae2cc 100755 --- a/examples/tip.tcl +++ b/examples/tip.tcl @@ -105,13 +105,20 @@ stdin ndelay 1 stdout tty output raw stdout buffering none +set status "" + # I/O loop set tilde 0 $f readable { set c [$f read] - stdout puts -nonewline $c + if {[$f eof]} { + set status "$device: disconnected" + incr done + } else { + stdout puts -nonewline $c + } } proc tilde_timeout {} { @@ -150,4 +157,4 @@ vwait done stdin tty {*}$stdin_save stdout tty {*}$stdout_save -puts "" +puts $status |