Allows for validating parameters before they are passed to the callback, which can save some checking code in those functions. I don't really like the way a failed validation is handled towards end users right now but that's relatively easily fixable.
Allows for validating parameters before they are passed to the callback, which can save some checking code in those functions. I don't really like the way a failed validation is handled towards end users right now but that's relatively easily fixable.
Signed-off-by: Yoshi2889 rick.2889@gmail.com