refactor.
This commit is contained in:
Christopher Jeffrey
parent
9d19388162
commit
3e7f1cea42
@ -8,17 +8,19 @@
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/*
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* Database Layout:
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* R -> tip hash
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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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* b/[hash] -> block
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* t/[hash] -> extended tx
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* c/[hash]/[index] -> coin
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* u/[hash] -> undo coins
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* T/[address]/[hash] -> dummy (tx by address)
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* C/[address]/[hash] -> dummy (coin by address)
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* q/[height] -> block hash to be pruned
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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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* b[hash] -> block
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* t[hash] -> extended tx
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* c[hash] -> coins
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* u[hash] -> undo coins
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* T[addr-hash][hash] -> dummy (tx by address)
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* C[addr-hash][hash][index] -> dummy (coin by address)
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* A[witaddr-hash][hash] -> dummy (tx by address)
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* B[witaddr-hash][hash][index] -> dummy (coin by address)
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* q[height] -> block hash to be pruned
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*/
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var bcoin = require('./env');
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@ -35,108 +37,120 @@ var Parser = bcoin.protocol.parser;
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var layout = {
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R: function R() {
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var p = new BufferWriter();
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p.writeU8(0x52); // R
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var key = new BufferWriter();
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key.writeU8(0x52); // R
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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e: function e(hash) {
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var p = new BufferWriter();
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p.writeU8(0x65); // e
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x65); // e
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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h: function h(hash) {
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var p = new BufferWriter();
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p.writeU8(0x68); // h
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x68); // h
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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H: function H(height) {
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var p = new BufferWriter();
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p.writeU8(0x48); // H
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p.writeU32(height);
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var key = new BufferWriter();
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key.writeU8(0x48); // H
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key.writeU32(height);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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n: function n(hash) {
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var p = new BufferWriter();
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p.writeU8(0x6e); // n
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x6e); // n
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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b: function b(hash) {
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var p = new BufferWriter();
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p.writeU8(0x62); // b
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x62); // b
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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t: function t(hash) {
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var p = new BufferWriter();
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p.writeU8(0x74); // t
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x74); // t
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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c: function c(hash) {
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var p = new BufferWriter();
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p.writeU8(0x63); // c
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x63); // c
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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u: function u(hash) {
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var p = new BufferWriter();
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p.writeU8(0x75); // u
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p.writeHash(hash);
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var key = new BufferWriter();
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key.writeU8(0x75); // u
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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q: function q(height) {
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var p = new BufferWriter();
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p.writeU8(0x71); // q
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p.writeU32(height);
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var key = new BufferWriter();
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key.writeU8(0x71); // q
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key.writeU32(height);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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T: function T(address, hash) {
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var p = new BufferWriter();
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var key = new BufferWriter();
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if (address.length === 64)
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p.writeU8(0x41); // A
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key.writeU8(0x41); // A
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else
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p.writeU8(0x54); // T
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p.writeHash(address);
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p.writeHash(hash);
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key.writeU8(0x54); // T
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key.writeHash(address);
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key.writeHash(hash);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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C: function C(address, hash, index) {
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var p = new BufferWriter();
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var key = new BufferWriter();
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if (address.length === 64)
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p.writeU8(0x42); // B
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key.writeU8(0x42); // B
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else
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p.writeU8(0x43); // C
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p.writeHash(address);
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p.writeHash(hash);
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p.writeU32(index);
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key.writeU8(0x43); // C
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key.writeHash(address);
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key.writeHash(hash);
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key.writeU32(index);
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key = key.render();
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if (utils.isBrowser)
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return p.render().toString('hex');
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return p.render();
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key = key.toString('hex');
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return key;
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},
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Cc: function Cc(key) {
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var hash, index;
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@ -1223,7 +1237,7 @@ ChainDB.prototype.getCoinsByAddress = function getCoinsByAddress(addresses, call
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return next();
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self.db.iterate({
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gte: layout.C(address, constants.NULL_HASH, 0),
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gte: layout.C(address, constants.ZERO_HASH, 0),
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lte: layout.C(address, constants.MAX_HASH, 0xffffffff),
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keyAsBuffer: !utils.isBrowser,
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transform: layout.Cc
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@ -1273,7 +1287,7 @@ ChainDB.prototype.getTXByAddress = function getTXByAddress(addresses, callback)
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return next();
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self.db.lookup({
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gte: layout.T(address, constants.NULL_HASH),
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gte: layout.T(address, constants.ZERO_HASH),
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lte: layout.T(address, constants.MAX_HASH),
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keyAsBuffer: !utils.isBrowser,
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transform: function(key) {
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@ -588,6 +588,17 @@ exports.ZERO_HASH = new Buffer(
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'hex'
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);
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/**
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* A hash of all 0xff.
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* @const {Buffer}
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* @default
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*/
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exports.MAX_HASH = new Buffer(
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'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
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'hex'
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);
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/**
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* A hash of all zeroes.
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* @const {String}
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@ -597,15 +608,6 @@ exports.ZERO_HASH = new Buffer(
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exports.NULL_HASH =
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'0000000000000000000000000000000000000000000000000000000000000000';
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/**
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* A hash of all 0xff.
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* @const {String}
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* @default
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*/
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exports.MAX_HASH =
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'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff';
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/**
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* BCoin version.
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* @const {String}
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