Suppose I have the following bash
chld_handler() {
trap '' CHLD # ignore while we handle
echo "$(date)" # this won't trigger chld now
trap 'chld_handler' CHLD # restore
}
# I want to be notified of the exit of any of these processes
xterm &
xterm &
xterm &
trap 'chld_handler' CHLD # first time setup
What would happen if one of the job processes exits, the chld_handler is invoked and while the handler runs another of the job processes exits? Will the second CHLD signal be queued?
