在Go中，我们可以使用每个键的锁定来同步地图的每个键吗？

Question

In Go, can we synchronize each key of a map using a lock per key? Is map level global lock always required? The documentation says that any access to map is not thread safe. But if a key exists, then can it be locked individually?

Answer 1

Not exactly, but if you are only reading pointers off a map and modifying the referents, then you aren't modifying the map itself.