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chaindb: checksum.

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This commit is contained in:
Christopher Jeffrey 2016-01-21 03:39:36 -08:00
parent ef51f4f842
commit b273bec120
1 changed files with 11 additions and 2 deletions
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13
lib/bcoin/chain.js
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@ -191,7 +191,7 @@ Chain.prototype.resetHeight = function resetHeight(height) {
existing = this.db.get(i);
assert(existing);
delete this.heightLookup[existing.hash];
this.db.del(i);
this.db.remove(i);
}
this.tip = this.db.get(height);
@ -690,6 +690,7 @@ Chain.prototype.fromJSON = function fromJSON(json) {
*/
var BLOCK_SIZE = 112;
// var BLOCK_SIZE = 116;
function ChainDB(chain, options) {
if (!(this instanceof ChainDB))
@ -897,7 +898,7 @@ ChainDB.prototype.saveAsync = function save(entry, callback) {
});
};
ChainDB.prototype.del = function del(height) {
ChainDB.prototype.remove = function remove(height) {
assert(height >= 0);
this._write(this._nullBlock, height * BLOCK_SIZE);
@ -908,7 +909,12 @@ ChainDB.prototype.del = function del(height) {
if ((height + 1) * BLOCK_SIZE === this.size) {
while (this.isNull(height))
height--;
if (height < 0)
height = 0;
fs.ftruncateSync(this.fd, (height + 1) * BLOCK_SIZE);
this.size = (height + 1) * BLOCK_SIZE;
this.tip = height;
}
@ -1097,11 +1103,14 @@ ChainBlock.prototype.toRaw = function toRaw() {
utils.writeU32(res, this.bits, 72);
utils.writeU32(res, this.nonce, 76);
utils.copy(this.chainwork.toArray('be', 32), res, 80);
// utils.copy(utils.checksum(res.slice(0, 112)), res, 112);
return res;
};
ChainBlock.fromRaw = function fromRaw(chain, height, p) {
// if (!utils.isEqual(utils.checksum(p.slice(0, 112)), p.slice(112, 116)))
// throw new Error('Bad checksum');
return new ChainBlock(chain, {
height: height,
hash: utils.toHex(utils.dsha256(p.slice(0, 80))),