cuprate_blockchain::ops::key_image

Function remove_key_image

Source 
pub fn remove_key_image(
    key_image: &KeyImage,
    table_key_images: &mut impl DatabaseRw<KeyImages>,
) -> Result<(), RuntimeError>
Expand description

Remove a KeyImage from the “spent” set in the database.

§⚠️ Invariant ⚠️

This function mainly exists to be used internally by the parent function crate::ops::block::add_block.

add_block() makes sure all data related to the input is mutated, while this function does not, it specifically mutates particular tables.

This is usually undesired - although this function is still available to call directly.

When calling this function, ensure that either:

  1. This effect (incomplete database mutation) is what is desired, or that…
  2. …the other tables will also be mutated to a correct state

§Errors

This function returns RuntimeError::KeyNotFound if the input (if applicable) doesn’t exist or other RuntimeError’s on database errors.