The QSsl namespace declares enums common to all SSL classes in QtNetwork for Embedded Linux.

The QtConcurrent namespace provides high-level APIs that make it possible to write multi-threaded programs without using low-level threading primitives for Linux.

The QTest namespace contains all the functions and declarations that are related to the QTestLib tool for Linux. -The QTest namespace contains all the functions and declarations that are related to the QTestLib tool for Linux.