July 2019
Intermediate to advanced
458 pages
12h 12m
English
Content preview from Hands-On System Programming with Go
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Waiting receiver
Most of the examples we saw in the previous section had the sending operations done in a goroutine, and had the receiving operations done in the main goroutine. It could be the case that all operations are handled by goroutines, so do we synchronize the main one with the others?
A typical technique is the use of another channel used for the sole purpose of signaling that a goroutine has finished its job. The receiving goroutine knows that there are no more messages to get with the closure of the communication channel and it closes another channel that is shared with the main goroutine after finishing its operation. The main function can wait for the closure of the channel before exiting.
The typical channel that is used ...
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