pub struct Once<T> { /* private fields */ }
Implementations
Tries to get a reference to the value of the Cell.
Returns Err if the cell is uninitialized or in critical section.
Tries to get a reference to the value of the Cell.
Returns Err if the cell is uninitialized.
Notice: Spin
Sets the value of the Cell to the argument value.
Returns Err if the value is initialized or in critical section.
Sets the value of the Cell to the argument value.
Returns Err if the value is initialized.
Notice: Spin
Tries to get a reference to the value of the Cell.
Returns Err if the cell is in critical section.
Tries to get a reference to the value of the Cell.
Notice: Spin