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Inline DataView reads in rQshift methods

This commit is contained in:
PekingSpades 2025-12-13 11:10:12 +08:00
parent 8f73e2ee17
commit de7723c7a0
1 changed files with 9 additions and 31 deletions
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40
core/websock.js
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@ -105,43 +105,21 @@ export default class Websock {
} }
rQshift8() { rQshift8() {
return this._rQshift(1); const offset = this._rQi;
this._rQi += 1;
return this._rQdv.getUint8(offset);
} }
rQshift16() { rQshift16() {
return this._rQshift(2); const offset = this._rQi;
this._rQi += 2;
return this._rQdv.getUint16(offset, false);
} }
rQshift32() { rQshift32() {
return this._rQshift(4); const offset = this._rQi;
} this._rQi += 4;
return this._rQdv.getUint32(offset, false);
// Use DataView for faster integer reads (with a fallback for uncommon sizes)
_rQshift(bytes) {
if (!this._rQdv && this._rQ) {
this._rQdv = new DataView(this._rQ.buffer);
}
if (this._rQdv && (bytes === 1 || bytes === 2 || bytes === 4)) {
const offset = this._rQi;
this._rQi += bytes;
let res;
if (bytes === 1) {
res = this._rQdv.getUint8(offset);
} else if (bytes === 2) {
res = this._rQdv.getUint16(offset, false);
} else {
res = this._rQdv.getUint32(offset, false);
}
return res >>> 0;
}
let res = 0;
for (let byte = bytes - 1; byte >= 0; byte--) {
res += this._rQ[this._rQi++] << (byte * 8);
}
return res >>> 0;
} }
rQlen() { rQlen() {