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take lock once in get_header_for_output (#2161)

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This commit is contained in:
Antioch Peverell
2018-12-15 20:44:33 +00:00
committed by GitHub
parent d6131f2716
commit 9a4895c86a
1 changed files with 5 additions and 7 deletions
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chain/src/chain.rs
+5 -7
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@@ -1123,11 +1123,9 @@ impl Chain {
&self,
output_ref: &OutputIdentifier,
) -> Result<BlockHeader, Error> {
let pos = {
let txhashset = self.txhashset.read();
let (_, pos) = txhashset.is_unspent(output_ref)?;
pos
};
let txhashset = self.txhashset.read();
let (_, pos) = txhashset.is_unspent(output_ref)?;
let mut min = 1;
let mut max = {
@@ -1137,8 +1135,8 @@ impl Chain {
loop {
let search_height = max - (max - min) / 2;
let h = self.get_header_by_height(search_height)?;
let h_prev = self.get_header_by_height(search_height - 1)?;
let h = txhashset.get_header_by_height(search_height)?;
let h_prev = txhashset.get_header_by_height(search_height - 1)?;
if pos > h.output_mmr_size {
min = search_height;
} else if pos < h_prev.output_mmr_size {