...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Perform a blocking wait on the object handle.
void wait();
This function is used to wait for the object handle to be set to the signalled state. This function blocks and does not return until the object handle has been set to the signalled state.
Thrown on failure.