sync 패키지
[링크 : https://pkg.go.dev/sync]
Mutex.Lock() 은 Mutex.Unlock()으로 풀수 있다.
[링크 : https://pkg.go.dev/sync#Mutex.Lock]
[링크 : https://pkg.go.dev/sync#Mutex]
RWMutex.RLock() / RWMutex.Lock() - RWMutex.RUnlock() / RWMutex.Unlock()
abc 순으로 정렬되어있다보니 보기가 어렵네
아무튼 Lock - Unlock / RLock - RUnlock 으로 pair가 된다.
| func (rw *RWMutex) Lock() Lock locks rw for writing. If the lock is already locked for reading or writing, Lock blocks until the lock is available. func (*RWMutex) Unlock ¶ func (rw *RWMutex) Unlock() Unlock unlocks rw for writing. It is a run-time error if rw is not locked for writing on entry to Unlock. As with Mutexes, a locked RWMutex is not associated with a particular goroutine. One goroutine may RWMutex.RLock (RWMutex.Lock) a RWMutex and then arrange for another goroutine to RWMutex.RUnlock (RWMutex.Unlock) it. func (*RWMutex) RLock ¶ func (rw *RWMutex) RLock() RLock locks rw for reading. It should not be used for recursive read locking; a blocked Lock call excludes new readers from acquiring the lock. See the documentation on the RWMutex type. func (*RWMutex) RUnlock ¶ func (rw *RWMutex) RUnlock() RUnlock undoes a single RWMutex.RLock call; it does not affect other simultaneous readers. It is a run-time error if rw is not locked for reading on entry to RUnlock. |
[링크 : https://pkg.go.dev/sync#RWMutex.Lock]
[링크 : https://pkg.go.dev/sync#RWMutex]
[링크 : https://www.jaenung.net/tree/28536]
[링크 : https://rainbow96bear.tistory.com/entry/Go-고루틴-이해하기-뮤텍스-데드락]
+
2026.08.26
| Usage¶ To help diagnose such bugs, Go includes a built-in data race detector. To use it, add the -race flag to the go command: $ go test -race mypkg // to test the package $ go run -race mysrc.go // to run the source file $ go build -race mycmd // to build the command $ go install -race mypkg // to install the package |
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