SO 5.7 InDepth Custom Worker Threads

What Is It?

Until v.5.7.3 there wasn't a possibility to specify a custom thread to be used by SObjectizer dispatchers. But sometimes such a feature could be useful. For example, a specific thread stack size has to be set by pthread_attr_setstacksize in POSIX Thread, or some signal handlers have to be set for a new worker thread on Unix. But SObjectizer created worked thread by itself by using std::thread and didn't provide a way to tune new worker threads.

Since v.5.7.3 it is possible to instruct SObjectizer to use custom worker threads. This feature is based on two interfaces added in v.5.7.3: so_5::disp::abstract_work_thread_t and so_5::disp::abstract_work_thread_factory_t.

Since v.5.7.3 a user can define his/her own worker thread type by implementing so_5::disp::abstract_work_thread_t interface. The user also has to define own thread factory by implementing so_5::disp::abstract_work_thread_factory_t interface. An instance of such a factory has to be created and specified in the params to a SObjectizer dispatcher or to the whole SObjectizer Environment.