std::lock_guard

scope

{
   std::lock_guard<std::mutex> lock(mutex_var);
} // scope of lock_guard

• lock_guard unlock

• https://stackoverflow.com/questions/47704306/is-unlocking-a-lock-guard-manually-undefined-bad-design

• c++ lock_guard scope

• https://stackoverflow.com/questions/39330745/scope-of-stdlock-guard-inside-if-block

• lock_guard

• https://en.cppreference.com/w/cpp/thread/lock_guard

• lock_guard unlock mutual

• https://blog.csdn.net/qq_37233607/article/details/79827466