added auto-rewind and an no-rewind node for tape-devfs

service/tape-devfs.lua

@@ -3,6 +3,11 @@ local td = {}
 local function addNode(addr)
  devfs.register("tape"..tonumber(counter),function()
   local tape = component.proxy(addr)
+  tape.seek(-math.huge)
+  return tape.read, tape.write, function() end, tape.seek
+ end)
+ devfs.register("tapen"..tonumber(counter),function()
+  local tape = component.proxy(addr)
   return tape.read, tape.write, function() end, tape.seek
  end)
  td[addr] = counter
@@ -14,7 +19,7 @@ end
 while true do
  local tE = {coroutine.yield()}
  if tE[1] == "component_added" and tE[3] == "tape_drive" then
-  addNode[tE[2]]
+  addNode(tE[2])
  elseif tE[1] == "component_removed" and tE[3] == "tape_drive" then
   if td[tE[2]] then
    fs.remove("/dev/tape"..tostring(td[tE[2]]))