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conditional_replace_with_hook

harn_vm::conditional_replace

Function conditional_replace_with_hook 

Source 
pub fn conditional_replace_with_hook<F>(
    path: &Path,
    contents: &[u8],
    options: &ConditionalReplaceOptions,
    before_write: F,
) -> Result<ConditionalReplaceReceipt>
where
    F: FnOnce(),
Expand description

Variant used by hosts that must snapshot the pre-image immediately before mutation while the replacement lock is still held.