Is multiple event loops thread-safe?

[weiwenhao]

I have initialized a uv_loop_t for each thread, and then each thread runs its own uv_run and the events in its own thread. Is this the correct way to operate?

void uv_stop_callback(uv_timer_t* timer) {  
    processor_t* p = timer->data;   
    uv_stop(timer->loop);  
}  

// Each thread calls io_run in a loop
int io_run(processor_t* p, uint64_t timeout_ms) {  
    uv_timer_t timeout_timer;  
    uv_timer_init(p->uv_loop, &timeout_timer);  
    timeout_timer.data = p;  
  
    uv_timer_start(&timeout_timer, uv_stop_callback, timeout_ms, 0);  

    return uv_run(p->uv_loop, UV_RUN_DEFAULT);
}

[zhsnew]

跨线程调用uv_stop是不安全的

可以考虑使用uv_async_t — Async handle
1 在 uv_run之前调用

int uv_async_init(uv_loop_t *loop, uv_async_t *async, uv_async_cb async_cb)

2 跨线程时调用

int uv_async_send(uv_async_t *async)

[RealYukiSan]

Calling uv_stop across threads is unsafe

Consider using uv_async_t - Async handle
1 Called before uv_run

int uv_async_init(uv_loop_t *loop, uv_async_t *async, uv_async_cb async_cb)

2 Called across threads

int uv_async_send(uv_async_t *async)

Translated by DeepL