Enum PresentValueAccess 

pub enum PresentValueAccess {
    ReadOnly,
    Writable,
    Commandable,
}

How peers and the local application write a Value object’s Present_Value.

Priority_Array, Relinquish_Default, Current_Command_Priority, Value_Source_Array and Last_Command_Time are present only under Commandable. Value_Source is too, unless the object tracks the source of its noncommandable Present_Value (set_value_source_tracking on each Value object, #1552). Under every access, Out_Of_Service TRUE keeps the local application from changing Present_Value and lets peers write it for testing (Clause 12, Out_Of_Service of each Value object).

Variants

ReadOnly

The application sets Present_Value. Peers write it only while Out_Of_Service is TRUE.

Writable

A peer write replaces Present_Value, and so does the application.

Commandable

Peer writes go through Priority_Array, and the highest occupied priority is Present_Value (Clause 19.2).

Trait Implementations

impl Clone for PresentValueAccess

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PresentValueAccess

impl Debug for PresentValueAccess

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PresentValueAccess

fn default() -> Self

Returns the “default value” for a type.

impl Eq for PresentValueAccess

impl PartialEq for PresentValueAccess

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PresentValueAccess