Function construct_mortal_era

Source
pub fn construct_mortal_era(period: u64, current: u64) -> Era
Expand description

Mortal Era generation, from period and block number. From sp_runtime::generic::Era, verbatim.

Create a new era based on a period (which should be a power of two between 4 and 65536 inclusive) and a block number on which it should start (or, for long periods, be shortly after the start).

If using Era in the context of FRAME runtime, make sure that period does not exceed BlockHashCount parameter passed to system module, since that prunes old blocks and renders transactions immediately invalid.