Cross-Platform Multi-Threading Made Simple

The straightforward mechanisms for threaded programming in Qt have been tested and improved in real-world applications for over 6 years. Thread support was introduced in Qt 2.2 in 2000, and the majority of Qt customers already use Qt threading classes to build high-performance, cross-platform multi-threaded applications.

Qt provides the following features to enable the development of threaded applications:

• Thread Management: Classes for creating, synchronizing and terminating threads.
  

• Data Management: Qt provides data types that can be used for low-overhead thread sharing, and mutexes to protect data that needs to be modified by multiple threads are also provided.
• Object Management: Qt also provides the possibility of starting separate per-thread event loops.  This allows event driven objects, such as timers and sockets, to be used in any thread.
  
• Inter-Thread Communication: Straightforward facilities for communicating between threads, using the Qt Signals and Slots mechanism.

Get more technical details on Qt's multi-threading support

Even Easier Parallel Programming with Qt Concurrent

The QtConcurrent framework provides high-level APIs that make it possible to write multi-threaded programs without using low-level threading primitives. Building on Qt's threading features, QtConcurrent makes it easier to write certain kinds of multi-threaded application by integrating implementations of the well-known map-reduce and filter-reduce algorithms with Qt's container classes and object model.

Get more technical details on Qt Concurrent