c('PL_current_engine')

Documentation
- Reference manual
  - Multithreaded applications
    - Multithreaded mixed C and Prolog applications
      - Using Prolog engines from C
        
        PL_current_engine()
        
        PL_create_engine()
        
        PL_destroy_engine()
        
        PL_set_engine()
        
        PL_WITH_ENGINE()
- Packages

Availability:C-language interface function

PL_engine_t PL_current_engine()

Returns the current engine of the calling thread or NULL if the thread has no Prolog engine.