05794f5cb3
module indexer introduces a extensible architecture for indexing the chain. It provides a base class which handles syncing with the chain, handling re-orgs, interruptions, dynamic toggling, etc. TXIndexer and AddrIndexer are provided for indexing transactions and addresses, using the same flags as before i.e --index-tx and --index-address. Indexes are stored in a different database and can be maintained independently of the chain.
55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
/*!
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* layout.js - blockchain data layout for bcoin
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* Copyright (c) 2014-2017, Christopher Jeffrey (MIT License).
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* https://github.com/bcoin-org/bcoin
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*/
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'use strict';
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const bdb = require('bdb');
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/*
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* Database Layout:
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* V -> db version
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* O -> chain options
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* R -> tip hash
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* D -> versionbits deployments
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* e[hash] -> entry
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* h[hash] -> height
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* H[height] -> hash
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* n[hash] -> next hash
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* p[hash] -> tip index
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* b[hash] -> block (deprecated)
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* t[hash] -> extended tx (deprecated)
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* c[hash] -> coins
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* u[hash] -> undo coins (deprecated)
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* v[bit][hash] -> versionbits state
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* T[addr-hash][hash] -> dummy (tx by address) (deprecated)
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* C[addr-hash][hash][index] -> dummy (coin by address) (deprecated)
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*/
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const layout = {
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V: bdb.key('V'),
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O: bdb.key('O'),
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R: bdb.key('R'),
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D: bdb.key('D'),
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e: bdb.key('e', ['hash256']),
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h: bdb.key('h', ['hash256']),
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H: bdb.key('H', ['uint32']),
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n: bdb.key('n', ['hash256']),
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p: bdb.key('p', ['hash256']),
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b: bdb.key('b', ['hash256']),
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t: bdb.key('t', ['hash256']),
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c: bdb.key('c', ['hash256', 'uint32']),
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u: bdb.key('u', ['hash256']),
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v: bdb.key('v', ['uint8', 'hash256']),
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T: bdb.key('T', ['hash', 'hash256']),
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C: bdb.key('C', ['hash', 'hash256', 'uint32'])
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};
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/*
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* Expose
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*/
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module.exports = layout;
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