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58 lines
1.2 KiB
58 lines
1.2 KiB
class MessageReader {
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constructor(data) {
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this.raw = data;
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this.data = new DataView(data);
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this.pos = 0;
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this.decoder = new TextDecoder('utf-8');
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}
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read_u8() {
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const result = this.data.getUint8(this.pos);
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this.pos++;
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return result;
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}
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read_bool() {
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return this.read_u8() == 1;
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}
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read_u32() {
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const result = this.data.getUint32(this.pos);
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this.pos += 4;
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return result;
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}
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read_u64() {
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const result = this.data.getBigUint64(this.pos);
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this.pos += 8;
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return Number(result);
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}
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read_str() {
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const length = this.read_u32();
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if (length > 0) {
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const view = new Uint8Array(this.raw, this.pos, length);
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this.pos += length;
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return this.decoder.decode(view);
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}
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else {
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return "";
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}
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}
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read_bytes() {
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const length = this.read_u32();
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if (length > 0) {
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const view = new Uint8Array(this.raw, this.pos, length);
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this.pos += length;
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return view;
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}
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else {
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return [];
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}
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}
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}
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export { MessageReader } |