RanchiMall/fcoin
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

migrate: pertxout migration improvements.

Browse Source
This commit is contained in:
Christopher Jeffrey 2017-07-05 11:41:36 -07:00
parent 5602001348
commit ca81520875
No known key found for this signature in database
GPG Key ID: 8962AB9DE6666BBD
1 changed files with 17 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
migrate/chaindb2to3.js
View File

@ -39,7 +39,7 @@ const STATE_ENTRY = 3;
const STATE_FINAL = 4;
const STATE_DONE = 5;
const heightCache = new Map();
const metaCache = new Map();
function writeJournal(batch, state, hash) {
let data = Buffer.allocUnsafe(34);
@ -166,7 +166,7 @@ async function reserializeUndo(hash) {
data.writeUInt32LE(version, 0, true);
data.writeUInt32LE(height, 4, true);
batch.put(pair(0x01, prevout.hash), data);
heightCache.set(prevout.hash, [version, height]);
metaCache.set(prevout.hash, [version, height]);
}
undo.items.push(item);
@ -175,11 +175,11 @@ async function reserializeUndo(hash) {
batch.put(pair('u', tip.hash), undo.toRaw());
if (++total % 10000 === 0) {
if (++total % 1000 === 0) {
console.log('Reserialized %d undo coins.', total);
writeJournal(batch, STATE_UNDO, tip.prevBlock);
await batch.write();
heightCache.clear();
metaCache.clear();
batch = db.batch();
}
@ -189,7 +189,7 @@ async function reserializeUndo(hash) {
writeJournal(batch, STATE_CLEANUP);
await batch.write();
heightCache.clear();
metaCache.clear();
console.log('Reserialized %d undo coins.', total);
@ -216,7 +216,7 @@ async function cleanupIndex() {
batch.del(item.key);
if (++total % 100000 === 0) {
if (++total % 10000 === 0) {
console.log('Cleaned up %d undo records.', total);
writeJournal(batch, STATE_CLEANUP);
await batch.write();
@ -284,7 +284,7 @@ async function reserializeCoins(hash) {
batch.put(bpair('c', hash, i), item.toRaw());
if (++total % 100000 === 0)
if (++total % 10000 === 0)
update = true;
}
@ -382,7 +382,7 @@ async function getMeta(coin, prevout) {
if (coin.height !== -1)
return [coin.version, coin.height, true];
item = heightCache.get(prevout.hash);
item = metaCache.get(prevout.hash);
if (item) {
let [version, height] = item;
@ -428,6 +428,12 @@ async function isPruned() {
return (data.readUInt32LE(4) & 4) !== 0;
}
async function isSPV() {
let data = await db.get('O');
assert(data);
return (data.readUInt32LE(4) & 1) !== 0;
}
async function isMainChain(entry, tip) {
if (entry.hash === tip)
return true;
@ -506,6 +512,9 @@ function bpair(prefix, hash, index) {
console.log('Opened %s.', file);
if (await isSPV())
throw new Error('Cannot migrate SPV database.');
console.log('Starting migration in 3 seconds...');
console.log('If you crash you can start over.');