fatal error:all goroutines are asleep-deadlock!goroutine1[semacquire]:sync.runtime_Semacquire(0xc000108040?)// ❯ go vet .# noCopy./main.go:9:24:worker passes lock by value:sync.WaitGroup contains sync.noCopy./main.go:21:16:callofworker copies lock value:sync.WaitGroup contains sync.no...
./main.go:12:9: Lock passes lock by value: noCopy.T contains sync.Mutex ./main.go:15:9: Unlock passes lock by value: noCopy.T contains sync.Mutex Copy 错误原因是Lock和Unlock方法使用了值接收器t,在调用方法时会创建T的副本,这意味着Unlock中的锁实例与Lock中的锁实例不匹配。 为了解决这个问...
noCopy介绍 在测试上面的错误使用示例的时候,会发现IDE在关键词sync.WaitGroup上显示高亮,并提示“'doSomething' passes lock by value: type 'sync.WaitGroup' contains 'interface{}' which is 'sync.Locker' ”,也就是说IDE其实提示了使用不正确。 仔细看sync.WaitGroup实现,会发现其中封装了一个noCopy对象 1 ...
./main.go:12:9: Lock passes lock by value: noCopy.T contains sync.Mutex ./main.go:15:9: Unlock passes lock by value: noCopy.T contains sync.Mutex Copy 错误原因是Lock和Unlock方法使用了值接收器t,在调用方法时会创建T的副本,这意味着Unlock中的锁实例与Lock中的锁实例不匹配。 为了解决这个问...
phonegap1001楼•4 个月前
Lock() } t.lock.Unlock() 实际上是由 lock 的副本调用的。在锁传值使用了值传递 需要修改,否则出现死锁。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 go vet main.go # command-line-arguments ./main.go:15:9: Unlock passes lock by value: command-line-arguments.Foo 本文参与 腾讯云自媒体...
$go vet main.go# command-line-arguments./main.go:16:Copypasseslockbyvalue:main.Democontains main.noCopy./main.go:17:call ofCopyTwicecopieslockvalue:main.Democontains main.noCopy./main.go:19:CopyTwicepasseslockbyvalue:main.Democontains main.noCopy./main.go:23:call of fmt.Printfcopieslockvalu...
command-line-arguments ./main.go:17:10: A passes lock by value: command-line-arguments.item contains command-line-arguments.noCopy ./main.go:18:14: call of fmt.Println copies lock value: command-line-arguments.item contains command-line-arguments.noCopy ./main.go:23:4: call of A copies...
The “govet” command has more accurate analysis in its-copylockand-printfchecks, and a new-testscheck that checks the name and signature of likely test functions. To avoid confusion with the new-testscheck, the old, unadvertised-testoption has been removed; it was equivalent to-all-shadow....
respLock sync.Mutex// protects freeRespfreeResp*Response} 其次是包含了注册服务信息的service结构体实现: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 type service struct{name string// 服务名rcvr reflect.Value// 服务实现类typ reflect.Type// 服务实现类类型method map[string]*methodType// 当前服...