walletdb: improve block connection.
This commit is contained in:
Christopher Jeffrey
parent
0ead568225
commit
282a8f7bb4
@ -1062,6 +1062,12 @@ ChainDB.prototype.scan = co(function* scan(start, filter, iter) {
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entry = yield this.getEntry(start);
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if (!entry)
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return;
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if (!(yield entry.isMainChain()))
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throw new Error('Cannot rescan an alternate chain.');
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while (entry) {
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block = yield this.getFullBlock(entry.hash);
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total++;
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@ -865,13 +865,13 @@ TXDB.prototype.isSpent = co(function* isSpent(hash, index) {
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* @returns {Promise}
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*/
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TXDB.prototype.add = co(function* add(tx) {
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TXDB.prototype.add = co(function* add(tx, block) {
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var result;
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this.start();
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try {
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result = yield this._add(tx);
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result = yield this._add(tx, block);
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} catch (e) {
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this.drop();
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throw e;
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@ -889,7 +889,7 @@ TXDB.prototype.add = co(function* add(tx) {
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* @returns {Promise}
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*/
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TXDB.prototype._add = co(function* add(tx) {
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TXDB.prototype._add = co(function* add(tx, block) {
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var hash = tx.hash('hex');
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var existing = yield this.getTX(hash);
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@ -909,7 +909,7 @@ TXDB.prototype._add = co(function* add(tx) {
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tx.ps = existing.ps;
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// Confirm transaction.
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return yield this.confirm(tx);
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return yield this.confirm(tx, block);
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}
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if (tx.height === -1) {
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@ -935,7 +935,7 @@ TXDB.prototype._add = co(function* add(tx) {
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}
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// Finally we can do a regular insertion.
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return yield this.insert(tx);
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return yield this.insert(tx, block);
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});
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/**
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@ -945,9 +945,10 @@ TXDB.prototype._add = co(function* add(tx) {
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* @returns {Promise}
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*/
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TXDB.prototype.insert = co(function* insert(tx) {
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TXDB.prototype.insert = co(function* insert(tx, block) {
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var hash = tx.hash('hex');
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var details = new Details(this, tx);
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var height = block ? block.height : this.walletdb.height;
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var details = new Details(this, tx, height);
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var updated = false;
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var i, input, output, coin;
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var prevout, credit, path, account;
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@ -1082,6 +1083,11 @@ TXDB.prototype.insert = co(function* insert(tx) {
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this.put(layout.H(account, tx.height, hash), DUMMY);
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}
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yield this.addTXRecord(tx);
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if (block)
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yield this.addBlockRecord(tx, block);
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// Update the transaction counter and
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// commit the new state. This state will
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// only overwrite the best state once
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@ -1104,6 +1110,88 @@ TXDB.prototype.insert = co(function* insert(tx) {
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return details;
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});
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TXDB.prototype.addTXRecord = co(function* addTXRecord(tx) {
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var hash = tx.hash('hex');
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var wids = yield this.walletdb.getWalletsByTX(hash);
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var result;
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if (!wids)
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wids = [];
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result = utils.binaryInsert(wids, this.wallet.wid, cmp, true);
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if (result === -1)
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return;
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this.walletdb.writeTX(this.wallet, hash, wids);
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});
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TXDB.prototype.addBlockRecord = co(function* addBlockRecord(tx, record) {
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var hash = tx.hash('hex');
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var block = yield this.walletdb.getBlock(record.hash);
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if (!block)
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block = record.clone();
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if (block.hashes.indexOf(hash) !== -1)
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return;
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block.hashes.push(hash);
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this.walletdb.writeBlock(this.wallet, block);
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});
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TXDB.prototype.removeTXRecord = co(function* removeTXRecord(tx) {
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var hash = tx.hash('hex');
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var wids = yield this.walletdb.getWalletsByTX(hash);
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var result;
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if (!wids)
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return true;
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result = utils.binaryRemove(wids, this.wallet.wid, cmp);
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if (!result)
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return false;
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if (wids.length > 0) {
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this.walletdb.writeTX(this.wallet, hash, wids);
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return false;
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}
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this.walletdb.removeTX(this.wallet, hash);
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return true;
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});
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TXDB.prototype.removeBlockRecord = co(function* removeBlockRecord(tx, blk) {
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var hash = tx.hash('hex');
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var block = yield this.walletdb.getBlock(blk);
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var index;
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if (!block)
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return;
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index = block.hashes.indexOf(hash);
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if (index === -1)
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return;
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block.hashes.splice(index, 1);
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if (block.hashes.length > 0) {
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this.walletdb.writeBlock(this.wallet, block);
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return;
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}
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this.walletdb.removeBlock(this.wallet, block);
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});
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function cmp(a, b) {
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return a - b;
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}
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/**
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* Attempt to confirm a transaction.
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* @private
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@ -1111,9 +1199,10 @@ TXDB.prototype.insert = co(function* insert(tx) {
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* @returns {Promise}
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*/
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TXDB.prototype.confirm = co(function* confirm(tx) {
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TXDB.prototype.confirm = co(function* confirm(tx, block) {
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var hash = tx.hash('hex');
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var details = new Details(this, tx);
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var height = block ? block.height : this.walletdb.height;
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var details = new Details(this, tx, height);
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var i, account, output, coin, input, prevout;
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var path, credit, credits;
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@ -1209,6 +1298,11 @@ TXDB.prototype.confirm = co(function* confirm(tx) {
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this.put(layout.H(account, tx.height, hash), DUMMY);
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}
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yield this.addTXRecord(tx);
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if (block)
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yield this.addBlockRecord(tx, block);
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// Commit the new state. The balance has updated.
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this.put(layout.R, this.pending.commit());
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@ -1246,7 +1340,7 @@ TXDB.prototype.remove = co(function* remove(hash) {
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TXDB.prototype.erase = co(function* erase(tx) {
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var hash = tx.hash('hex');
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var details = new Details(this, tx);
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var details = new Details(this, tx, this.walletdb.height);
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var i, path, account, credits;
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var input, output, coin, credit;
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@ -1333,6 +1427,11 @@ TXDB.prototype.erase = co(function* erase(tx) {
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this.del(layout.H(account, tx.height, hash));
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}
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if (yield this.removeTXRecord(tx)) {
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if (tx.block)
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yield this.removeBlockRecord(tx, tx.block);
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}
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// Update the transaction counter
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// and commit new state due to
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// balance change.
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@ -1389,13 +1488,13 @@ TXDB.prototype.removeRecursive = co(function* removeRecursive(tx) {
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* @returns {Promise}
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*/
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TXDB.prototype.unconfirm = co(function* unconfirm(hash) {
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TXDB.prototype.unconfirm = co(function* unconfirm(hash, block) {
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var details;
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this.start();
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try {
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details = yield this._unconfirm(hash);
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details = yield this._unconfirm(hash, block);
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} catch (e) {
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this.drop();
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throw e;
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@ -1413,13 +1512,13 @@ TXDB.prototype.unconfirm = co(function* unconfirm(hash) {
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* @returns {Promise}
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*/
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TXDB.prototype._unconfirm = co(function* unconfirm(hash) {
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TXDB.prototype._unconfirm = co(function* unconfirm(hash, block) {
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var tx = yield this.getTX(hash);
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if (!tx)
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return;
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return yield this.disconnect(tx);
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return yield this.disconnect(tx, block);
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});
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/**
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@ -1428,9 +1527,9 @@ TXDB.prototype._unconfirm = co(function* unconfirm(hash) {
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* @returns {Promise}
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*/
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TXDB.prototype.disconnect = co(function* disconnect(tx) {
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TXDB.prototype.disconnect = co(function* disconnect(tx, block) {
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var hash = tx.hash('hex');
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var details = new Details(this, tx);
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var details = new Details(this, tx, block.height - 1);
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var height = tx.height;
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var i, account, output, coin, credits;
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var input, path, credit;
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@ -2338,7 +2437,7 @@ TXDB.prototype.toDetails = co(function* toDetails(txs) {
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*/
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TXDB.prototype._toDetails = co(function* _toDetails(tx) {
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var details = new Details(this, tx);
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var details = new Details(this, tx, this.walletdb.height);
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var coins = yield this.fillHistory(tx);
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var i, coin, path, output;
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@ -2887,14 +2986,14 @@ Credit.fromTX = function fromTX(tx, index) {
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* @param {TX} tx
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*/
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function Details(txdb, tx) {
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function Details(txdb, tx, height) {
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if (!(this instanceof Details))
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return new Details(txdb, tx);
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return new Details(txdb, tx, height);
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this.db = txdb.walletdb;
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this.network = this.db.network;
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this.wid = txdb.wallet.wid;
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this.id = txdb.wallet.id;
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this.wallet = txdb.wallet;
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this.network = this.wallet.network;
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this.wid = this.wallet.wid;
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this.id = this.wallet.id;
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this.hash = tx.hash('hex');
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this.tx = tx;
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@ -2903,7 +3002,7 @@ function Details(txdb, tx) {
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this.height = tx.height;
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this.ts = tx.ts;
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this.index = tx.index;
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this.confirmations = tx.getConfirmations(this.db.height);
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this.confirmations = tx.getConfirmations(height);
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this.ps = tx.ps;
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@ -1813,10 +1813,10 @@ Wallet.prototype.getTX = function getTX(hash) {
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* @returns {Promise}
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*/
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Wallet.prototype.add = co(function* add(tx) {
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Wallet.prototype.add = co(function* add(tx, block) {
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var unlock = yield this.writeLock.lock();
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try {
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return yield this._add(tx);
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return yield this._add(tx, block);
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} finally {
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unlock();
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}
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@ -1830,8 +1830,8 @@ Wallet.prototype.add = co(function* add(tx) {
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* @returns {Promise}
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*/
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Wallet.prototype._add = co(function* add(tx) {
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var resolved = yield this.txdb.resolve(tx);
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Wallet.prototype._add = co(function* add(tx, block) {
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var resolved = yield this.txdb.resolve(tx, block);
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var result = false;
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var i;
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@ -1839,7 +1839,7 @@ Wallet.prototype._add = co(function* add(tx) {
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return true;
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for (i = 0; i < resolved.length; i++) {
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if (yield this._insert(resolved[i]))
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if (yield this._insert(resolved[i], block))
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result = true;
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}
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@ -1853,13 +1853,13 @@ Wallet.prototype._add = co(function* add(tx) {
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* @returns {Promise}
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*/
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Wallet.prototype._insert = co(function* insert(tx) {
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Wallet.prototype._insert = co(function* insert(tx, block) {
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var details, derived;
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this.txdb.start();
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try {
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details = yield this.txdb._add(tx);
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details = yield this.txdb._add(tx, block);
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derived = yield this.syncOutputDepth(details);
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} catch (e) {
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this.txdb.drop();
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@ -1882,10 +1882,10 @@ Wallet.prototype._insert = co(function* insert(tx) {
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* @returns {Promise}
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*/
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Wallet.prototype.unconfirm = co(function* unconfirm(hash) {
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Wallet.prototype.unconfirm = co(function* unconfirm(hash, block) {
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var unlock = yield this.writeLock.lock();
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try {
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return yield this.txdb.unconfirm(hash);
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return yield this.txdb.unconfirm(hash, block);
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} finally {
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unlock();
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}
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@ -1343,40 +1343,43 @@ WalletDB.prototype.setTip = co(function* setTip(hash, height) {
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* @returns {Promise}
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*/
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WalletDB.prototype.writeBlock = function writeBlock(block, matches) {
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var batch = this.db.batch();
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var i, hash, wids;
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batch.put(layout.R, block.toTip());
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if (block.hashes.length === 0)
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return batch.write();
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WalletDB.prototype.writeBlock = function writeBlock(wallet, block) {
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var batch = this.batch(wallet);
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batch.put(layout.b(block.hash), block.toRaw());
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for (i = 0; i < block.hashes.length; i++) {
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hash = block.hashes[i];
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wids = matches[i];
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batch.put(layout.e(hash), serializeWallets(wids));
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}
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return batch.write();
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};
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/**
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* Disconnect a block.
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* Connect a transaction.
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* @param {WalletBlock} block
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* @returns {Promise}
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*/
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WalletDB.prototype.unwriteBlock = function unwriteBlock(block) {
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var batch = this.db.batch();
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var prev = new WalletBlock(block.prevBlock, block.height - 1);
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WalletDB.prototype.writeTX = function writeTX(wallet, hash, wids) {
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var batch = this.batch(wallet);
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this.addFilter(hash);
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batch.put(layout.e(hash), serializeWallets(wids));
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};
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batch.put(layout.R, prev.toTip());
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/**
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* Connect a block.
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* @param {WalletBlock} block
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* @returns {Promise}
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*/
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WalletDB.prototype.removeBlock = function removeBlock(wallet, block) {
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var batch = this.batch(wallet);
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batch.del(layout.b(block.hash));
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};
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return batch.write();
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/**
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* Connect a transaction.
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* @param {WalletBlock} block
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* @returns {Promise}
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*/
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WalletDB.prototype.removeTX = function removeTX(wallet, hash) {
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var batch = this.batch(wallet);
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batch.del(layout.e(hash));
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};
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/**
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@ -1432,7 +1435,8 @@ WalletDB.prototype.addBlock = co(function* addBlock(entry, txs) {
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*/
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WalletDB.prototype._addBlock = co(function* addBlock(entry, txs) {
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var i, block, matches, hash, tx, wids;
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var total = 0;
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var i, block, tx;
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if (this.options.useCheckpoints) {
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if (entry.height <= this.network.checkpoints.lastHeight) {
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@ -1442,37 +1446,22 @@ WalletDB.prototype._addBlock = co(function* addBlock(entry, txs) {
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}
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block = WalletBlock.fromEntry(entry);
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matches = [];
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// Update these early so transactions
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// get correct confirmation calculations.
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this.tip = block.hash;
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this.height = block.height;
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// Atomicity doesn't matter here. If we crash
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// during this loop, the automatic rescan will get
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// the database back into the correct state.
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for (i = 0; i < txs.length; i++) {
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tx = txs[i];
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wids = yield this._insertTX(tx);
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if (!wids)
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continue;
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hash = tx.hash('hex');
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this.addFilter(hash);
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block.hashes.push(hash);
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matches.push(wids);
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if (yield this._insertTX(tx, block))
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total++;
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}
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if (block.hashes.length > 0) {
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if (total > 0) {
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this.logger.info('Connecting block %s (%d txs).',
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utils.revHex(block.hash), block.hashes.length);
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utils.revHex(block.hash), total);
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}
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yield this.writeBlock(block, matches);
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yield this.setTip(entry.hash, entry.height);
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});
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/**
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@ -1500,15 +1489,8 @@ WalletDB.prototype.removeBlock = co(function* removeBlock(entry) {
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WalletDB.prototype._removeBlock = co(function* removeBlock(entry) {
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var block = WalletBlock.fromEntry(entry);
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var i, data, hash;
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// If we crash during a reorg, there's not much to do.
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// Reorgs cannot be rescanned. The database will be
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// in an odd state, with some txs being confirmed
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// when they shouldn't be. That being said, this
|
||||
// should eventually resolve itself when a new block
|
||||
// comes in.
|
||||
data = yield this.getBlock(block.hash);
|
||||
var data = yield this.getBlock(block.hash);
|
||||
var i, hash;
|
||||
|
||||
if (data)
|
||||
block.hashes = data.hashes;
|
||||
@ -1518,16 +1500,12 @@ WalletDB.prototype._removeBlock = co(function* removeBlock(entry) {
|
||||
utils.revHex(block.hash), block.hashes.length);
|
||||
}
|
||||
|
||||
// Unwrite the tip as fast as we can.
|
||||
yield this.unwriteBlock(block);
|
||||
|
||||
for (i = block.hashes.length - 1; i >= 0; i--) {
|
||||
hash = block.hashes[i];
|
||||
yield this._unconfirmTX(hash);
|
||||
yield this._unconfirmTX(hash, block);
|
||||
}
|
||||
|
||||
this.tip = block.hash;
|
||||
this.height = block.height;
|
||||
yield this.setTip(block.prevBlock, block.height - 1);
|
||||
});
|
||||
|
||||
/**
|
||||
@ -1541,7 +1519,7 @@ WalletDB.prototype._removeBlock = co(function* removeBlock(entry) {
|
||||
WalletDB.prototype.addTX = co(function* addTX(tx) {
|
||||
var unlock = yield this.txLock.lock();
|
||||
try {
|
||||
return yield this._addTX(tx);
|
||||
return yield this._insertTX(tx);
|
||||
} finally {
|
||||
unlock();
|
||||
}
|
||||
@ -1554,30 +1532,7 @@ WalletDB.prototype.addTX = co(function* addTX(tx) {
|
||||
* @returns {Promise}
|
||||
*/
|
||||
|
||||
WalletDB.prototype._addTX = co(function* addTX(tx) {
|
||||
var wids = yield this._insertTX(tx);
|
||||
var hash;
|
||||
|
||||
if (!wids)
|
||||
return;
|
||||
|
||||
hash = tx.hash('hex');
|
||||
|
||||
yield this.db.put(layout.e(hash), serializeWallets(wids));
|
||||
|
||||
this.addFilter(hash);
|
||||
|
||||
return wids;
|
||||
});
|
||||
|
||||
/**
|
||||
* Add a transaction to the database without a lock.
|
||||
* @private
|
||||
* @param {TX} tx
|
||||
* @returns {Promise}
|
||||
*/
|
||||
|
||||
WalletDB.prototype._insertTX = co(function* insertTX(tx) {
|
||||
WalletDB.prototype._insertTX = co(function* insertTX(tx, block) {
|
||||
var result = false;
|
||||
var i, wids, wid, wallet;
|
||||
|
||||
@ -1598,7 +1553,7 @@ WalletDB.prototype._insertTX = co(function* insertTX(tx) {
|
||||
|
||||
assert(wallet);
|
||||
|
||||
if (yield wallet.add(tx)) {
|
||||
if (yield wallet.add(tx, block)) {
|
||||
this.logger.debug(
|
||||
'Added transaction to wallet: %s (%d).',
|
||||
wallet.id, wid);
|
||||
@ -1618,10 +1573,10 @@ WalletDB.prototype._insertTX = co(function* insertTX(tx) {
|
||||
* @returns {Promise}
|
||||
*/
|
||||
|
||||
WalletDB.prototype.unconfirmTX = co(function* unconfirmTX(hash) {
|
||||
WalletDB.prototype.unconfirmTX = co(function* unconfirmTX(hash, block) {
|
||||
var unlock = yield this.txLock.lock();
|
||||
try {
|
||||
return yield this._unconfirmTX(hash);
|
||||
return yield this._unconfirmTX(hash, block);
|
||||
} finally {
|
||||
unlock();
|
||||
}
|
||||
@ -1635,7 +1590,7 @@ WalletDB.prototype.unconfirmTX = co(function* unconfirmTX(hash) {
|
||||
* @returns {Promise}
|
||||
*/
|
||||
|
||||
WalletDB.prototype._unconfirmTX = co(function* unconfirmTX(hash) {
|
||||
WalletDB.prototype._unconfirmTX = co(function* unconfirmTX(hash, block) {
|
||||
var wids = yield this.getWalletsByTX(hash);
|
||||
var i, wid, wallet;
|
||||
|
||||
@ -1646,7 +1601,7 @@ WalletDB.prototype._unconfirmTX = co(function* unconfirmTX(hash) {
|
||||
wid = wids[i];
|
||||
wallet = yield this.get(wid);
|
||||
assert(wallet);
|
||||
yield wallet.unconfirm(hash);
|
||||
yield wallet.unconfirm(hash, block);
|
||||
}
|
||||
});
|
||||
|
||||
@ -1701,6 +1656,18 @@ function WalletBlock(hash, height) {
|
||||
this.hashes = [];
|
||||
}
|
||||
|
||||
/**
|
||||
* Clone the block.
|
||||
* @returns {WalletBlock}
|
||||
*/
|
||||
|
||||
WalletBlock.prototype.clone = function clone() {
|
||||
var block = new WalletBlock(this.hash, this.height);
|
||||
block.prevBlock = this.prevBlock;
|
||||
block.hashes = this.hashes.slice();
|
||||
return block;
|
||||
};
|
||||
|
||||
/**
|
||||
* Instantiate wallet block from chain entry.
|
||||
* @private
|
||||
|
||||
Loading…
Reference in New Issue
Block a user