How to write the return promise from the read register in the serial server

[Davensi]

SerialPort Version

8.0.16

Node Version

18

Electron Version

No response

Platform

No response

Architecture

No response

Hardware or chipset of serialport

No response

What steps will reproduce the bug?

/* eslint-disable no-console, no-unused-vars, spaced-comment */

// create an empty modbus client
const ModbusRTU = require("modbus-serial");
// 保持寄存器
const holdingRegisters = { 4000: 31, 4001: 32, 4002: 25, 4003: 26, 4004: 27 };
// 线圈
const coils = {};
// 读输入寄存器
const inputRegisters = {};
// 离散输入 开关量输入
const discreteInputs = {};

const vector = {
// 获取单个输入寄存器
getInputRegister: function (addr) {
console.log('[ getInputRegister ] >', addr)
return inputRegisters[addr];
},
// 获取多个寄存器
// 1-That's accurate ？
getMultipleInputRegisters: function (startAddr, length) {
console.count('[ getMultipleInputRegisters ] >', startAddr, length, Date.now())
const values = [];
for (let i = 0; i < length; i++) {
values[i] = inputRegisters[startAddr + i];
}
return new Promise(reslove => reslove(values));
},
// 2-Write /async
// getMultipleInputRegisters: async function (startAddr, length) {

//     const values = [];
//     for (let i = 0; i < length; i++) {
//         values[i] = inputRegisters[startAddr + i];
//     }
//     return values
// },
// I find that neither seems to work
// 获取分离输入
getDiscreteInput: function (addr) {
    console.log('[ getDiscreteInput ] >', addr)
    return discreteInputs[addr];
},
// 获取保持寄存器
getHoldingRegister: function (addr) {
    console.log('[ getHoldingRegister ] >', addr)
    return holdingRegisters[addr];
},
// 设置单个寄存器
setRegister: function (addr, value) {
    console.log('[ 设置寄存器--setRegister ] >', addr)
    holdingRegisters[addr] = value;
    return;
},
// 获取多个保持寄存器
getMultipleHoldingRegisters: async function (startAddr, length, c) {
    const values = [];
    console.log('[ getMultipleHoldingRegisters ] >', startAddr, length, Date.now())
    for (let i = 0; i < length; i++) {
        values[i] = holdingRegisters[startAddr + i];
    }
    console.log('[ alues ] >', values, c)
    return values
},
// 获取一个线圈
getCoil: function (addr) {
    console.log('[ getCoil ] >', addr)
    return coils[addr];
},
// 设置一个线圈
setCoil: function (addr, value) {
    console.log('[ setCoil ] >', addr)
    coils[addr] = value;
    return coils[addr];
},
// 读取设备号
readDeviceIdentification: function () {
    console.log('[ readDeviceIdentification ] >')
    return {
        0x00: "MyVendorName",
        0x01: "MyProductCode",
        0x02: "MyMajorMinorRevision",
        0x05: "MyModelName",
        0x97: "MyExtendedObject1",
        0xab: "MyExtendedObject2"
    };
}

};
const serverTCP = new ModbusRTU.ServerSerial(vector,
{
port: "COM6",
baudRate: 115200,
debug: true,
unitID: 1,
// enron: true,
interval: 10,
// enronTables: {
// booleanRange: [1001, 1999],
// shortRange: [3001, 3999],
// longRange: [5001, 5999],
// floatRange: [7001, 7999]
// }
}
);

What happens?

Returning a promise should be no problem

What should have happened?

It wasn't presented as intended

Additional information

No response

[Davensi]

In source code
getMultipleInputRegisters?: ((addr: number, length: number, unitID: number, cb: FCallbackVal<number[]>) => void) | ((addr: number, length: number, unitID: number) => Promise<number[]>) | ((addr: number, length: number, unitID: number) => number[]);