Jolyon, your bank.go program is broken, it deadlocks: play.golang.org/p/2RE89_ER2N2
The problem is:
go func() { for i := 0; i < 1000; i++ { mu.Lock() defer mu.Unlock() bob -= 1 alice += 1 // mu.Unlock() } }()
defer executes mu.Unlock() when the enclosing function returns. The second loop iteration will deadlock on mu.Lock().
defer
mu.Unlock()
mu.Lock()
Thanks for pointing out!
Just corrected it.
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Jolyon, your bank.go program is broken, it deadlocks: play.golang.org/p/2RE89_ER2N2
The problem is:
deferexecutesmu.Unlock()when the enclosing function returns. The second loop iteration will deadlock onmu.Lock().Thanks for pointing out!
Just corrected it.