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# Example of a unix domain stream server which sends a response
file delete unix.tmp
set s [socket unix.server unix.tmp]
puts "Listening on [$s sockname]"
$s readable {
# Clean up children
wait -nohang 0
set sock [$s accept]
# Make this server forking so we can accept multiple
# simultaneous connections
if {[os.fork] == 0} {
# We don't want the unix domain path to be deleted here
$s close -nodelete
$sock buffering line
# Get the requests, one line at a time an evaluate
while {[$sock gets buf] >= 0} {
set buf [string trim $buf]
if {$buf in {? help}} {
set result "Enter any Tcl command to run in the server"
} else {
try {
set result [eval $buf]
set result [string map [list \\ \\\\ \n \\n \r \\r] $result]
} on error {msg} {
set result "Error: $buf => $msg"
}
}
# Send the result back to where it came from
$sock puts $result
}
}
$sock close
}
# Handle signals so the socket is removed on exit
signal handle SIGINT SIGTERM
catch -signal {
vwait done
}
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