You can now specify dirty schedulers on a function level. To do so you need to add functions_options to the nifty options:
1> CompileOptions = nifty_utils:add_sources(["long_running.c"], []),
NiftyOptions = [{nifty, [{functions_options, [{"func1", [schedule_dirty_io]},
"func2", [schedule_dirty_cpu]]}]}],
nifty:compile("long_running.h",
long_running,
CompileOptions ++ NiftyOptions).If the global schedule_dirty option is used, then the function options overwrite the global option.