114 lines
4.1 KiB
Prolog
114 lines
4.1 KiB
Prolog
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: load_foreign.yap *
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* Last rev: 8/2/88 *
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* mods: *
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* comments: Utility predicates for load_foreign *
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* *
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*************************************************************************/
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load_foreign_files(Objs,Libs,Entry) :-
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'$check_objs_for_load_foreign_files'(Objs,NewObjs,load_foreign_files(Objs,Libs,Entry)),
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'$check_libs_for_load_foreign_files'(Libs,NewLibs,load_foreign_files(Objs,Libs,Entry)),
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'$check_entry_for_load_foreign_files'(Entry,load_foreign_files(Objs,Libs,Entry)),
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'$load_foreign_files'(NewObjs,NewLibs,Entry).
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'$check_objs_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_objs_for_load_foreign_files'([],[],_) :- !.
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'$check_objs_for_load_foreign_files'([Obj|Objs],[NObj|NewObjs],G) :- !,
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'$check_obj_for_load_foreign_files'(Obj,NObj,G),
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'$check_objs_for_load_foreign_files'(Objs,NewObjs,G).
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'$check_objs_for_load_foreign_files'(Objs,_,G) :-
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'$do_error'(type_error(list,Objs),G).
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'$check_obj_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_obj_for_load_foreign_files'(Obj,NewObj,_) :- atom(Obj), !,
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atom_codes(Obj,ObjCodes),
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'$process_obj_suffix'(ObjCodes,NewObjCodes),
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atom_codes(NewObj,NewObjCodes).
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'$check_obj_for_load_foreign_files'(Obj,_,G) :-
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'$do_error'(type_error(atom,Obj),G).
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'$check_libs_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_libs_for_load_foreign_files'([],[],_) :- !.
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'$check_libs_for_load_foreign_files'([Lib|Libs],[NLib|NLibs],G) :- !,
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'$check_lib_for_load_foreign_files'(Lib,NLib,G),
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'$check_libs_for_load_foreign_files'(Libs,NLibs,G).
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'$check_libs_for_load_foreign_files'(Libs,_,G) :-
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'$do_error'(type_error(list,Libs),G).
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'$check_lib_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_lib_for_load_foreign_files'(Lib,NLib,_) :- atom(Lib), !,
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atom_codes(Lib,LibCodes),
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'$process_obj_suffix'(LibCodes,NewLibCodes),
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'$checklib_prefix'(NewLibCodes,FullLibCodes),
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atom_codes(NLib,FullLibCodes).
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'$check_lib_for_load_foreign_files'(Lib,_,G) :-
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'$do_error'(type_error(atom,Lib),G).
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'$process_obj_suffix'(ObjCodes,ObjCodes) :-
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'$obj_suffix'(ObjSuffix),
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lists:append(_,ObjSuffix,ObjCodes), !.
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'$process_obj_suffix'(ObjCodes,NewObjCodes) :-
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'$obj_suffix'(ObjSuffix),
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lists:append(ObjCodes,ObjSuffix,NewObjCodes).
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'$checklib_prefix'(Cs,Cs) :- '$rooted_path'(Cs), !.
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'$checklib_prefix'([0'l,0'i,0'b|NewObjCodes],[0'l,0'i,0'b|NewObjCodes]) :- !.
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'$checklib_prefix'(NewObjCodes,[0'l,0'i,0'b|NewObjCodes]).
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'$rooted_path'([C|_]) :- '$dir_separator'(C), !.
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'$rooted_path'(Cs) :-
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% win32 machine
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'$dir_separator'(0'\\),
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'$get_drive'(Cs).
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'$get_drive'([0':|_]) :- !.
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'$get_drive'([0'\\|_]) :- !, fail.
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'$get_drive'([_|L]) :-
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'$get_drive'(L).
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'$check_entry_for_load_foreign_files'(V,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_entry_for_load_foreign_files'(Entry,_) :- atom(Entry), !.
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'$check_entry_for_load_foreign_files'(Entry,G) :-
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'$do_error'(type_error(atom,Entry),G).
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open_shared_object(File, Handle) :-
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'$open_shared_object'(File, 0, Handle).
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open_shared_object(File, Opts, Handle) :-
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'$open_shared_opts'(Opts, open_shared_object(File, Opts, Handle), OptsI),
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'$open_shared_object'(File, OptsI, Handle).
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'$open_shared_opts'(Opts, G, OptsI) :-
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var(Opts), !,
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'$do_error'(instantiation_error,G).
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'$open_shared_opts'([], _, 0) :- !.
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'$open_shared_opts'(Opt.Opts, G, V) :-
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'$open_shared_opts'(Opts, G, V0),
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'$open_shared_opt'(Opt, G, OptV),
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V0 is V \/ OptV.
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'$open_shared_opt'(Opt, G, _) :-
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var(Opt), !,
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'$do_error'(instantiation_error,G).
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'$open_shared_opt'(now, __, 1) :- !.
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'$open_shared_opt'(global, __, 2) :- !.
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'$open_shared_opt'(Opt, Goal, _) :-
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'$do_error'(domain_error(open_shared_object_option,Opt),Goal).
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