I have a method that accepts a string parameter, and the method will be called concurrently. I want to lock between calls that pass in the same string. For example, two threads pass in "abc" to call the method at the same time, then I hope they one by one. At the same time, the call to "xyz" from another thread is not affected. So what should I lock?
void Foo(string s) {
lock(what) {} // ???
}
I am currently locking String.Intern(s), but I understand that this will increase the uncollectable interned string, and this method will be called countless times by passing countless different strings during the app running, so I want to improve it.