According to the C++ Standard When thread_local is applied to a variable of block scope the storage-class-specifier static is implied if it does not appear explicitly So it means that this definition void f() { thread_local vector<int> V; V.clear(); … // use V as a temporary variable } is equivalent to void f() { static … Read more
Thread local storage is useful for instance if you have a thread worker pool and each thread needs access to its own resource, like a network or database connection. Note that the threading module uses the regular concept of threads (which have access to the process global data), but these are not too useful due … Read more
Thread-local storage duration is a term used to refer to data that is seemingly global or static storage duration (from the viewpoint of the functions using it) but in actual fact, there is one copy per thread. It adds to the current automatic (exists during a block/function), static (exists for the program duration) and dynamic … Read more