libuv的线程池使用代码

以下是使用libuv的线程池的示例代码：

#include <uv.h>
#include <stdio.h>

#define NUM_THREADS 4

void task(void* arg) {
  int* num = (int*)arg;
  printf("Thread %lu: %d\n", uv_thread_self(), *num);
}

int main() {
  uv_thread_t threads[NUM_THREADS];
  uv_threadpool_t pool;

  // Initialize thread pool
  uv_threadpool_create(&pool, NUM_THREADS);

  // Add tasks to thread pool
  for (int i = 0; i < 10; i++) {
    int* num = malloc(sizeof(int));
    *num = i;
    uv_threadpool_work(&pool, task, num);
  }

  // Wait for tasks to complete
  uv_threadpool_wait(&pool);

  // Destroy thread pool
  uv_threadpool_destroy(&pool);

  return 0;
}

该示例创建了一个线程池，添加了10个任务，并等待它们完成。任务函数将打印线程ID和任务参数。