This article will explain what are synchronizations and list the synchronization techniques supported by Go.
Concurrency synchronizations means how to control concurrent computations (a.k.a., goroutines in Go)
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to avoid data races between them,
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to avoid them consuming CPU resources when they have nothing to do.
The article
channels in Go has shown that we can use channels to do synchronizations. Besides using channels, Go also supports several other common synchronization techniques, such as mutex and atomic operations. Please read the following articles to get how to do synchronizations with all kinds of techniques in Go:
We can also do synchronizations by making use of network and file IO. But such techniques are very inefficient within a single program process. Generally, they are used for inter-process and distributed synchronizations. Go 101 will not cover such techniques.
The data synchronization techniques in Go will not prevent programmers from writing
improper concurrent code. However these techniques can help programmers write correct concurrent code easily. And the unique channel related features make concurrent programming flexible and enjoyable.