Struct ProgressHandlerGuard 

pub struct ProgressHandlerGuard { /* private fields */ }

Keeps a progress handler installed; returned by set_progress_handler and set_progress_handler_stderr.

Dropping the guard uninstalls its handler: if it was the active one, the handler of the most recent guard still alive (or, if none, the handler that was active before the first guard) is reinstalled. Guards can be dropped in any order, e.g. when kept in a struct or a Vec.

The guard is bound to the thread that created it (it is neither Send nor Sync), like igraph’s handlers.

Trait Implementations

impl Debug for ProgressHandlerGuard

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

Formats the value using the given formatter.

impl Drop for ProgressHandlerGuard

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.