#! /bin/csh -f

#Set the executable name.
set exec = 6dragons

#Set the logfile directory.
set log_dir = log

#Set the port number.
if("$1" != "") then
  set port = $1
else
  set port = 4100
endif

# Change to previous directory.
cd ../

#Set limits.
nohup
nice
unlimit stack
unlimit core
if(-e shutdown.txt) rm -f shutdown.txt

while(1)
    #Check if already running.
    set matches = `netstat -an | grep ".$port " | grep -c LISTEN`
    if($matches >= 1) then
      #Already running
      echo Something is already running on port: $port.
      exit 0
    endif

    #If you want to have logs in a different directory, change the 'set logfile' line to 
    #reflect the directory name.
    set index = 1000
    while (1)
      set logfile = $log_dir/$index.log
      if(! -e $logfile) break
        @ index++
        #Keep the log files from taking up all the space.
        if($index > 1010) then
          rm $log_dir/*.log
          set index = 1000
        endif
    end

    #Record starting time.
    date > $logfile

    #Run program.
    ./$exec $port >&! $logfile

    #Restart, giving old connections a chance to die.
    if(-e system/shutdown.dat) then
      "system/shutdown.dat found exiting startup" >> $logfile
      exit 0
    endif
    sleep 5
end