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getheaders. better pow test.

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This commit is contained in:
Christopher Jeffrey 2016-02-23 04:37:13 -08:00
parent a3b2149c1f
commit 95a5d2c47b
3 changed files with 13 additions and 14 deletions
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5
lib/bcoin/peer.js
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@ -601,12 +601,11 @@ Peer.prototype._handleInv = function handleInv(items) {
};
Peer.prototype._handleHeaders = function handleHeaders(headers) {
var self = this;
headers = headers.map(function(header) {
header._hash = utils.dsha256(header._raw);
header.hash = utils.toHex(header._hash);
header.prevBlock = utils.toHex(header.prevBlock);
header.merkleRoot = utils.toHex(header.merkleRoot);
header.hash = utils.toHex(utils.dsha256(header._raw));
return header;
});

18
lib/bcoin/pool.js
View File

@ -63,7 +63,7 @@ function Pool(options) {
options.headers = true;
} else {
if (options.headers == null)
options.headers = false;
options.headers = true;
}
this.syncing = false;
@ -534,18 +534,20 @@ Pool.prototype._handleHeaders = function _handleHeaders(headers, peer) {
this.chain.onFlush(function() {
for (i = 0; i < headers.length; i++) {
block = bcoin.block(headers[i], 'header');
header = headers[i];
if (last && block.prevBlock !== last.hash('hex'))
if (last && header.prevBlock !== last.hash)
break;
if (!block.verify())
if (!utils.testTarget(header.bits, header._hash)) {
utils.debug('Header failed POW test.');
break;
}
if (!self.chain.has(block))
self.getData(peer, self.block.type, block.hash('hex'));
if (!self.chain.has(header.hash))
self.getData(peer, self.block.type, header.hash);
last = block;
last = header;
}
// Restart the getheaders process
@ -556,7 +558,7 @@ Pool.prototype._handleHeaders = function _handleHeaders(headers, peer) {
// simply tries to find the latest block in
// the peer's chain.
if (last && headers.length === 2000)
self.getHeaders(peer, last, null);
self.getHeaders(peer, last.hash, null);
});
// Reset interval to avoid calling getheaders unnecessarily

4
lib/bcoin/utils.js
View File

@ -876,9 +876,7 @@ utils.testTarget = function testTarget(target, hash) {
if (typeof hash === 'string')
hash = new Buffer(hash, 'hex');
hash = Array.prototype.slice.call(hash);
return new bn(hash.slice().reverse()).cmp(target) < 0;
return new bn(hash, 'le').cmp(target) < 0;
};
utils.now = function now() {