src/scripts/cmdcallback.lua

   1 --[[ For now, this sample function will simply record all the commands executed ]]--
   2
   3 function cmd1(name, args)
   4   os.execute('mkdir -p /tmp/debug')
   5   local f = io.open('/tmp/debug/22', 'a')
   6   f:write("Command executed: " .. name)
   7
   8   for i, c in pairs(args) do
   9     f:write(" " .. c)
  10   end
  11
  12   f:write("\n")
  13   f:close()
  14   return 0
  15 end
  16
  17 function cmd2(name, args)
  18     os.execute('mkdir -p /tmp/debug')
  19     local f = io.open('/tmp/debug/11', 'a')
  20     f:write("Command executed: " .. name)
  21
  22     for i, c in pairs(args) do
  23       f:write(" " .. c)
  24     end
  25
  26     f:write("\n")
  27     f:close()
  28     return 0
  29 end
  30
  31 ticket1 = screen.hook("cmdexecuted", cmd1)
  32 ticket2 = screen.hook("cmdexecuted", "cmd2")
  33
  34 function unhook()
  35   if ticket1 ~= nil then
  36     screen.unhook(ticket1, cmd1)
  37     ticket1 = nil
  38   end
  39
  40   if ticket2 ~= nil then
  41     screen.unhook(ticket2, "cmd2")
  42     ticket2 = nil
  43   end
  44 end
  45
  46 --A second unhook should faild
  47 function debug_unhook()
  48   if screen.unhook(ticket1, "cmd1") == false then
  49     error("unhook failed")
  50   end
  51 end
  52
  53 --A second hook should faild
  54 function debug_hook()
  55   ticket1=screen.hook("cmdexecuted", "cmd1")
  56 end
  57