1. Define a function that represents the worker. This function should receive tasks from a channel and process them.
  2. Create a buffered channel to hold the tasks that need to be executed.
  3. Launch a fixed number of goroutines (workers) that will listen for tasks on the channel and execute them.
  4. Send tasks to the channel for the workers to process.
  5. Use synchronization mechanisms, such as sync.WaitGroup, to ensure that all tasks are completed before the program exits.

Worker Pools

func worker(id int, jobs <-chan int, results chan<- int) {
    for j := range jobs {
        fmt.Println("worker", id, "started  job", j)
        fmt.Println("worker", id, "finished job", j)
        results <- j * 2