Struct global::BorrowFail

pub struct BorrowFail;

A failure occured while borrowing a Global<T> value.

This happens when the value is incorrectly borrowed twice within a single thread. While cross-thread locking will simply block until the value is available, within a single thread potential deadlocks are detected. An error can occur in one of three ways:

• Attempting to immutably borrow a value that is already mutably borrowed.
• Attempting to mutably borrow a value that is already mutably borrowed.
• Attempting to mutably borrow a value that is already immutably borrowed.

Note that this error will not be raised in the case of multiple immutable borrows.

Trait Implementations

impl Debug for BorrowFail

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

Formats the value using the given formatter.

impl Display for BorrowFail

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

Formats the value using the given formatter.

impl Error for BorrowFail

fn description(&self) -> &str

This method is soft-deprecated.

fn cause(&self) -> Option<&dyn Error>

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn type_id(&self) -> TypeId where
    Self: 'static, 

Gets the TypeId of self