I wrote a pool of workers, where the job is to receive an integer and return that number converted to string. However I faced a fatal error: all goroutines are asleep - deadlock! error. What am I doing wrong and how can I fix it?
I was able to replicate your issue and fix it by using a pointer to master instead of a normal variable.
Basically just change your NewWorker() method to this:
func (m *Master) NewWorker() {
m.Workers = append(m.Workers, Worker{})
}
Here's the output the program prints after the change:
0
1
2
3
4
5
6
7
8
9
10
.
.
.
Everytime you called NewWorker() method, you weren't appending a worker to the same master object. That's why the slice never got populated with 3 workers, as should've been the case.