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yap-6.3/pl/yapor.yap
vsc 82438c1d6f fixes in modules
system support for WIN32 (first try).
small fixes.


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@45 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2001-05-28 19:54:53 +00:00

124 lines
4.3 KiB
Prolog

/*************************************************************************
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: yapor.yap *
* Last rev: 8/2/88 *
* mods: *
* comments: support or-parallelism *
* *
*************************************************************************/
'$parallel_query'(G,[]) :- !, '$start_yapor', '$execute'(G), !, $parallel_yes_answer.
'$parallel_query'(G,V) :- '$start_yapor', '$execute'(G), $parallel_new_answer(V).
% ***************************
% * -------- YAPOR -------- *
% ***************************
default_sequential(X) :-
'$default_sequential'(X), !.
default_sequential(_).
'$sequential' :-
'$default_sequential'(X),
'$initialization'('$default_sequential'(X)),
'$default_sequential'(on).
'$parallel' :-
'$default_sequential'(X),
'$initialization'('$default_sequential'(X)),
'$default_sequential'(off).
'$sequential_directive'(X) :- var(X), !,
write(user_error, '[ Error: argument to sequential/1 should be a predicate ]'),
nl(user_error),
fail.
'$sequential_directive'((A,B)) :- !, sequential(A), sequential(B).
'$sequential_directive'(A/N) :- integer(N), atom(A), !,
functor(T,A,N), '$flags'(T,F,F),
(
X is F /\ 8'000040, X =\= 0, !,
write(user_error, '[ Warning: '),
write(user_error, A/N),
write(user_error, ' is already declared as sequential ]'),
nl(user_error)
;
X is F /\ 8'170000, X =:= 0, !, '$sequential'(T)
;
write(user_error, '[ Error: '),
write(user_error, A/N),
write(user_error, ' cannot be declared as sequential ]'),
nl(user_error),
fail
).
'$sequential_directive'(X) :- write(user_error, '[ Error: '),
write(user_error, X),
write(user_error, ' is an invalid argument to sequential/1 ]'),
nl(user_error),
fail.
parallel(X) :- var(X), !,
write(user_error, '[ Error: argument to parallel/1 should be a predicate ]'),
nl(user_error),
fail.
parallel((A,B)) :- !, parallel(A), parallel(B).
parallel(A/N) :- integer(N), atom(A), !,
functor(T,A,N), '$flags'(T,F,F),
(
NF is F /\ \(8'000040), '$flags'(T,F,NF) ;
write(user_error, '[ Warning: '),
write(user_error, A/N),
write(user_error, ' is already declared as sequential ]'),
nl(user_error)
;
X is F /\ 8'170000, X =:= 0, !, $sequential(T)
;
write(user_error, '[ Error: '),
write(user_error, A/N),
write(user_error, ' cannot be declared as parallel ]'),
nl(user_error),
fail
).
sequential(X) :- write(user_error, '[ Error: '),
write(user_error, X),
write(user_error, ' is an invalid argument to parallel/1 ]'),
nl(user_error),
fail.
%
% do not try to run consult in the parallel system.
%
'$parallelizable'(_) :-
'$get_value'('$consulting_file',S), S\=[], !, fail.
'$parallelizable'((G1,G2)) :- !,
'$parallelizable'(G1),
'$parallelizable'(G2).
'$parallelizable'((G1;G2)) :- !,
'$parallelizable'(G1),
'$parallelizable'(G2).
'$parallelizable'((G1|G2)) :- !,
'$parallelizable'(G1),
'$parallelizable'(G2).
'$parallelizable'((G1->G2)) :- !,
'$parallelizable'(G1),
'$parallelizable'(G2).
'$parallelizable'([]) :- !, fail.
'$parallelizable'([_|_]) :- !, fail.
'$parallelizable'(consult(_)) :- !, fail.
'$parallelizable'(reconsult(_)) :- !, fail.
'$parallelizable'(compile(_)) :- !, fail.
'$parallelizable'(use_module(_)) :- !, fail.
'$parallelizable'(_).