Shared Memory and Shared Variables
Explore the use of mutex variables in Go to synchronize goroutines and protect shared memory. Understand critical sections, how to lock and unlock mutexes, and avoid race conditions in concurrent applications.
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Mutex variable
Shared memory and shared variables are huge topics in concurrent programming and the most common ways for UNIX threads to communicate with each other. The same principles apply to Go and goroutines, which is what this lesson is about. A mutex variable, which is an abbreviation of mutual exclusion variable, is mainly used for thread synchronization and for protecting shared data when multiple writes can occur at the same time. A mutex works like a buffered channel with a capacity of one, which allows, at most, one goroutine to access a shared variable at any given time. This means that there is no way for two or more goroutines to be ...