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Use header hash for by height index (#761)

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* Use header hash for by height index
* Update semantics of save_header_height
This commit is contained in:
Æde
2018-03-09 19:59:15 +01:00
committed by Ignotus Peverell
parent 5cf780ab98
commit bbbbdc455d
2 changed files with 27 additions and 7 deletions
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chain/src/store.rs
+4 -7
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@@ -146,11 +146,12 @@ impl ChainStore for ChainKVStore {
fn get_header_by_height(&self, height: u64) -> Result<BlockHeader, Error> {
option_to_not_found(self.db.get_ser(&u64_to_key(HEADER_HEIGHT_PREFIX, height)))
.and_then(|hash| self.get_block_header(&hash))
}
fn save_header_height(&self, bh: &BlockHeader) -> Result<(), Error> {
self.db
.put_ser(&u64_to_key(HEADER_HEIGHT_PREFIX, bh.height), bh)
.put_ser(&u64_to_key(HEADER_HEIGHT_PREFIX, bh.height), &bh.hash())
}
fn delete_header_by_height(&self, height: u64) -> Result<(), Error> {
@@ -229,8 +230,7 @@ impl ChainStore for ChainKVStore {
self.delete_header_by_height(n)?;
}
self.db
.put_ser(&u64_to_key(HEADER_HEIGHT_PREFIX, header.height), header)?;
self.save_header_height(&header)?;
if header.height > 0 {
let mut prev_header = self.get_block_header(&header.previous)?;
@@ -238,10 +238,7 @@ impl ChainStore for ChainKVStore {
if let Ok(_) = self.is_on_current_chain(&prev_header) {
break;
}
self.db.put_ser(
&u64_to_key(HEADER_HEIGHT_PREFIX, prev_header.height),
&prev_header,
)?;
self.save_header_height(&prev_header)?;
prev_header = self.get_block_header(&prev_header.previous)?;
}