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Cannot work in a worker thread... please save me #2748

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61go opened this issue Feb 27, 2024 · 1 comment
Open

Cannot work in a worker thread... please save me #2748

61go opened this issue Feb 27, 2024 · 1 comment

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@61go
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61go commented Feb 27, 2024

SerialPort Version

12+

Node Version

v20

Electron Version

No response

Platform

No response

Architecture

64

Hardware or chipset of serialport

No response

What steps will reproduce the bug?

`

// main.ts

import { Worker } from 'worker_threads';

if (require.main === module) {
const worker = new Worker('./dist/serialWorker.js');

worker.on('message', (message) => {
console.log('Received message from worker:', message);
});

worker.postMessage({ type: 'START_SERIAL_PORT', port: '/dev/ttyUSB0', baudRate: 9600 });
}`

`// serialWorker.ts

import { parentPort } from 'worker_threads';
import { SerialPort, SerialPortOpenOptions } from 'serialport';

if (parentPort) {
parentPort.on('message', (message) => {
if (message.type === 'START_SERIAL_PORT') {
// const { port, baudRate } = message;

  const portOptions: SerialPortOpenOptions<any> = {
    path: 'COM4',
    baudRate: 921600,
    dataBits: 8,
    parity: 'none',
    stopBits: 1,
    autoOpen: false,
  };
//   if (!port) {
    let  port = new SerialPort(portOptions , () => {
      console.log('serial port opened');
    });
//   }
  port.open(() => {
      port.on("data", (data: Buffer) => {
        console.log(data.toString());
      });
    });

  parentPort.postMessage({ type: 'SERIAL_PORT_STARTED' });
}

});
}

`

What happens?

when i use seriaport in worker thread, it error:

D:\codes\desktop-mmb>node dist/index.js Received message from worker: { type: 'SERIAL_PORT_STARTED' } FATAL ERROR: HandleScope::HandleScope Entering the V8 API without proper locking in place 1: 00007FF6A8D7436F node::SetCppgcReference+15695 2: 00007FF6A8CEC686 EVP_MD_meth_get_input_blocksize+76102 3: 00007FF6A8CEE57C node::OnFatalError+252 4: 00007FF6A974F549 v8::HandleScope::Initialize+137 5: 00007FF6A97376FE v8::HandleScope::HandleScope+14 6: 00007FF6A8D3FD8A napi_open_handle_scope+154 7: 00007FFE7CD0AFEA 8: 00007FF6A8DD8A6B uv_update_time+491 9: 00007FF6A8DD85E4 uv_run+900 10: 00007FF6A8DA94D2 node::SpinEventLoop+402 11: 00007FF6A8C9CAB3 DH_get0_priv_key+151875 12: 00007FF6A8D2E925 node::Start+3989 13: 00007FF6A8D2D9C0 node::Start+48 14: 00007FF6A8B0D76C AES_cbc_encrypt+150940 15: 00007FF6A9F3BCDC inflateValidate+17308 16: 00007FFE9AF2257D BaseThreadInitThunk+29 17: 00007FFE9B7CAA58 RtlUserThreadStart+40

What should have happened?

when i use it in mainthread, it works.
but i really need to use it in worker thread....

Additional information

aaaa

@jsharf
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jsharf commented Mar 12, 2024

Looks related to #1938.

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