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check freeze before updating slot_hashes (#4448) 

* check freeze before updating slot_hashes

* fixup
This commit is contained in:
Rob Walker 2019-05-28 12:25:55 -07:00 committed by GitHub
parent ff31ffbd54
commit 441fed7a5b
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1 changed files with 7 additions and 3 deletions
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10
runtime/src/bank.rs
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@ -215,18 +215,22 @@ impl Bank {
self.store(&slot_hashes::id(), &account);
}
fn set_hash(&self) {
fn set_hash(&self) -> bool {
let mut hash = self.hash.write().unwrap();
if *hash == Hash::default() {
// freeze is a one-way trip, idempotent
*hash = self.hash_internal_state();
true
} else {
false
}
}
pub fn freeze(&self) {
self.set_hash();
self.update_slot_hashes();
if self.set_hash() {
self.update_slot_hashes();
}
}
pub fn epoch_schedule(&self) -> &EpochSchedule {