/**
         
 * Warranty & Liability
         
 * To the extent permitted by applicable law and unless explicitly
         
 * otherwise agreed upon, XLOG Technologies AG makes no warranties
         
 * regarding the provided information. XLOG Technologies AG assumes
         
 * no liability that any problems might be solved with the information
         
 * provided by XLOG Technologies AG.
         
 *
         
 * Rights & License
         
 * All industrial property rights regarding the information - copyright
         
 * and patent rights in particular - are the sole property of XLOG
         
 * Technologies AG. If the company was not the originator of some
         
 * excerpts, XLOG Technologies AG has at least obtained the right to
         
 * reproduce, change and translate the information.
         
 *
         
 * Reproduction is restricted to the whole unaltered document. Reproduction
         
 * of the information is only allowed for non-commercial uses. Selling,
         
 * giving away or letting of the execution of the library is prohibited.
         
 * The library can be distributed as part of your applications and libraries
         
 * for execution provided this comment remains unchanged.
         
 *
         
 * Restrictions
         
 * Only to be distributed with programs that add significant and primary
         
 * functionality to the library. Not to be distributed with additional
         
 * software intended to replace any components of the library.
         
 *
         
 * Trademarks
         
 * Jekejeke is a registered trademark of XLOG Technologies AG.
         
 */
         

         
runner_file(extra, exec, 'XLOG 3.1 async').
         

         
/****************************************************************/
         
/* kernel.p extras                                              */
         
/****************************************************************/
         

         
/* shield(X) */
         

         
runner_pred(shield,1, extra, exec, 'XLOG 3.1.2').
         
runner_case(shield,1, extra, exec, 'XLOG 3.1.2, XLOG 1') :-
         
   current_prolog_flag(async_mode, X),
         
   X == on.
         
runner_case(shield,1, extra, exec, 'XLOG 3.1.2, XLOG 2') :-
         
   shield(current_prolog_flag(async_mode, X)),
         
   X == off.
         
runner_case(shield,1, extra, exec, 'XLOG 3.1.2, XLOG 3') :-
         
   catch(shield(throw(foo)), E, true),
         
   E == foo.
         
runner_case(shield,1, extra, exec, 'XLOG 3.1.2, XLOG 4') :-
         
   \+ shield(fail).
         

         
/* unshield(X) */
         

         
runner_pred(unshield,1, extra, exec, 'XLOG 3.1.3').
         
runner_case(unshield,1, extra, exec, 'XLOG 3.1.3, XLOG 1') :-
         
   shield(unshield(current_prolog_flag(async_mode, X))),
         
   X == on.
         
runner_case(unshield,1, extra, exec, 'XLOG 3.1.3, XLOG 2') :-
         
   unshield((X=1;X=2)),
         
   X == 1.
         
runner_case(unshield,1, extra, exec, 'XLOG 3.1.3, XLOG 3') :-
         
   findall(X,unshield((X=1;X=2)),[_,X|_]),
         
   X == 2.
         

         
/* once_cleanup(X, Y) */
         

         
runner_pred(once_cleanup,2, extra, exec, 'XLOG 3.1.4').
         
runner_case(once_cleanup,2, extra, exec, 'XLOG 3.1.4, XLOG 1') :-
         
   once_cleanup(true, current_prolog_flag(async_mode, X)),
         
   X == off.
         
runner_case(once_cleanup,2, extra, exec, 'XLOG 3.1.4, XLOG 2') :-
         
   catch(once_cleanup(throw(foo), true), E, true),
         
   E == foo.
         
runner_case(once_cleanup,2, extra, exec, 'XLOG 3.1.4, XLOG 3') :-
         
   \+ once_cleanup(fail, true).
         

         
/* setup_once_cleanup(X, Y, Z) */
         

         
runner_pred(setup_once_cleanup,3, extra, exec, 'XLOG 3.1.5').
         
runner_case(setup_once_cleanup,3, extra, exec, 'XLOG 3.1.5, XLOG 1') :-
         
   setup_once_cleanup(true, current_prolog_flag(async_mode, X), true),
         
   X == on.
         
runner_case(setup_once_cleanup,3, extra, exec, 'XLOG 3.1.5, XLOG 2') :-
         
   setup_once_cleanup(true, (X=1;X=2), true),
         
   X == 1.
         
runner_case(setup_once_cleanup,3, extra, exec, 'XLOG 3.1.5, XLOG 3') :-
         
   \+ findall(X,setup_once_cleanup(true, (X=1;X=2), true),[_,X|_]).
         

         
/****************************************************************/
         
/* kernel.p extras                                              */
         
/****************************************************************/
         

         
% time_once(+Term, -Integer)
         
time_once(G, C) :-
         
   statistics(time, A),
         
   G,
         
   statistics(time, B),
         
   C is B-A.
         

         
% time_out_trap(+Term, +Integer, -Term)
         
time_out_trap(G, C, E) :-
         
   sys_trap(time_out(G,C), error(E,_), true).
         

         
/* sleep(X) */
         

         
runner_pred(sleep,1, extra, exec, 'XLOG 3.1.6').
         
runner_case(sleep,1, extra, exec, 'XLOG 3.1.6, XLOG 1') :-
         
   \+ current_prolog_flag(dialect, gprolog),
         
   time_once(sleep(1000), X),
         
   X > 750.
         
runner_case(sleep,1, extra, exec, 'XLOG 3.1.6, XLOG 2') :-
         
   \+ current_prolog_flag(dialect, gprolog),
         
   time_once(time_out_trap(sleep(1000),500,E), X),
         
   E == system_error(timelimit_exceeded), X < 750.
         
runner_case(sleep,1, extra, exec, 'XLOG 3.1.6, XLOG 3') :-
         
   \+ current_prolog_flag(dialect, gprolog),
         
   catch(sleep(-1), error(E,_), true),
         
   E == domain_error(not_less_than_zero, -1).