multithreading - Reading values from a different thread

Question

I'm writing software in Go that does a lot of parallel computing. I want to collect data from worker threads and I'm not really sure how to do it in a safe way. I know that I could use channels but in my scenario they make it more complicated since I have to somehow synchronize messages (wait until every thread sent something) in the main thread.

Scenario

The main thread creates n Worker instances and launches their work() method in a goroutine so that the workers each run in their own thread. Every 10 seconds the main thread should collect some simple values (e.g. iteration count) from the workers and print a consolidated statistic.

Question

Is it safe to read values from the workers? The main thread will only read values and each individual thread will write it's own values. It would be ok if the values are a few nanoseconds off while reading.

Any other ideas on how to implement this in an easy way?

Answer 1

Waitting for answers