Constructor. Creates a signal event file descriptor which will be
written to when one of the specified signals fires. The normal signal
handling for the specified signals is optionally masked.
The list of signals handled may be extended after construction by
calling the register() method.
Constructor. Creates a signal event file descriptor which will be written to when one of the specified signals fires. The normal signal handling for the specified signals is optionally masked.
The list of signals handled may be extended after construction by calling the register() method.