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75 lines
1.7 KiB
75 lines
1.7 KiB
class MessageWriter {
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constructor(message_id, message_type) {
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this.data = [ ]
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this.write_u32(message_id)
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this.write_u8(message_type)
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this.encoder = new TextEncoder("utf-8");
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}
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write_u8(value) {
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this.data.push(value)
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}
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write_u32(value) {
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const buffer = new ArrayBuffer(4);
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const view = new DataView(buffer);
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view.setUint32(0, value);
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const data = new Uint8Array(buffer);
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this.data.push(...data);
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}
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write_i32(value) {
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const buffer = new ArrayBuffer(4);
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const view = new DataView(buffer);
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view.setInt32(0, value);
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const data = new Uint8Array(buffer);
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this.data.push(...data);
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}
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write_u64(value) {
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const buffer = new ArrayBuffer(8);
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const view = new DataView(buffer);
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view.setBigUint64(0, BigInt(value));
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const data = new Uint8Array(buffer);
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this.data.push(...data);
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}
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// value in milliseconds
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write_time(value) {
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const seconds = Math.floor(value / 1000);
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const millis = value % 1000;
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const nanos = millis * 1000 * 1000;
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this.write_u64(seconds);
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this.write_u32(nanos);
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}
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write_str(value) {
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const data = this.encoder.encode(value);
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this.write_u32(data.length);
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this.data.push(...data);
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}
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write_strings(list) {
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this.write_u32(list.length);
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for(const item of list) {
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this.write_str(item);
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}
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}
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write_bytes(value) {
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this.write_u32(value.length);
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this.data.push(...value);
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}
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get_data() {
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return new Uint8Array(this.data);
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}
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}
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export { MessageWriter } |