#!/usr/bin/python2

MAX_LOCKED_MEMSIZE = 1024 * 1024 * 1024  # 1 GB
SHMMAX = 1024 * 1024 * 1024   # 1 GB

SLICE = "princeton_vcoblitz"

import os
import sys
import resource

if __name__ == "__main__":

   # expand lockable memory
   resource.setrlimit( resource.RLIMIT_MEMLOCK, (MAX_LOCKED_MEMSIZE, MAX_LOCKED_MEMSIZE) )
  
   # ensure that shmmax is big enough.
   os.system( "vspace -e " + SLICE + " --ipc sysctl -w kernel.shmmax=" + str(SHMMAX) )
   
   # we'll echo argv into the prox pipe
   args = sys.stdin.read().split()

   print "args = " + str(args)

   pid = os.fork()
   if pid == 0:
      # child
      print "child forked"

      os.execv( args[0], args )
      #os.execve( args[0], args, {'LD_LIBRARY_PATH': "/vservers/" + SLICE + "/lib:/vservers/" + SLICE + "/lib64:/vservers/" + SLICE + "/usr/lib:/vservers/" + SLICE + "/usr/lib64"} )

   else:
      # parent
      print "pid = " + str(pid)
      os.wait()
      sys.exit(0)