# New proc (savefile)

Source: https://ref.dm-lang.org/savefile/proc/New

### Format
> `New(filename,timeout)`

### Args
- `filename`: name of file or empty for temporary file
- `timeout`: seconds to wait; -1 for no timeout


You call this via new/savefile(filename,timeout). The timeout is used to determine how long to wait if the file is locked. Normally (timeout=0), if the file is locked, the proc crashes with a runtime error. If you specify a timeout, then it will keep trying to open the file and if this fails, it will simply return with savefile.name being empty (ie a false value).

If the first argument is an entry in the world's rsc cache, the data will be copied into a temporary file and accessed from there. Changes to this, and any other temporary file, are not saved. When you close the file, it simply gets deleted.

### See also
- [Lock proc (savefile)](https://ref.dm-lang.org/savefile/proc/Lock.md)
- [Unlock proc (savefile)](https://ref.dm-lang.org/savefile/proc/Unlock.md)