SWI-Prolog -- sig_remove/2

Documentation
- Reference manual
  - Multithreaded applications
    - Thread communication
      - Signalling threads
        
        thread_signal/2
        
        sig_pending/1
        
        sig_remove/2
        
        sig_block/1
        
        sig_unblock/1
        
        sig_atomic/1
- Packages

Availability:built-in

[det]sig_remove(:Pattern, -List)

Remove all signals that unify with Pattern from the signal queue and make the removed signals available in List