pub fn set_global_default(
dispatcher: Dispatch,
) -> Result<(), SetGlobalDefaultError>Expand description
Sets this dispatch as the global default for the duration of the entire program.
Will be used as a fallback if no thread-local dispatch has been set in a thread
(using with_default.)
Can only be set once; subsequent attempts to set the global default will fail.
Returns Err if the global default has already been set.
Warning: In general, libraries should not call
set_global_default()! Doing so will cause conflicts when
executables that depend on the library try to set the default collector later.