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debug && docs

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This commit is contained in:
Vitor Santos Costa 2017-10-27 13:50:40 +01:00
parent a83d97f998
commit e3ade13cfe
30 changed files with 394 additions and 337 deletions
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5
pl/attributes.yap
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@ -1,4 +1,4 @@
p/*************************************************************************
/*************************************************************************
* *
* YAP Prolog *
* *
@ -19,9 +19,10 @@ p/*************************************************************************
@file attributes.yap
@defgroup New_Style_Attribute_Declarations SWI Compatible attributes
@{
@ingroup attributes
@{
*/
:- system_module( attributes, [delayed_goals/4,

12
pl/boot.yap
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@ -16,11 +16,11 @@
*************************************************************************/
/**
@file boot.yap
@brief YAP bootstrap
@defgroup YAPControl Control Predicates
@file boot.yap
@brief YAP bootstrap
@defgroup YAPControl Control Predicates
@ingroup builtins
@{
@ -523,8 +523,7 @@ initialize_prolog :-
'$read_toplevel'(Command,Varnames),
nb_setval('$spy_gn',1),
% stop at spy-points if debugging is on.
nb_setval('$debug_run',off),
nb_setval('$debug_jump',off),
nb_setval('$debug_state', state(creep,0,stop)),
'$command'(Command,Varnames,_Pos,top),
current_prolog_flag(break_level, BreakLevel),
(
@ -1120,6 +1119,7 @@ incore(G) :- '$execute'(G).
'$enable_debugging':-
current_prolog_flag(debug, false), !.
'$enable_debugging' :-
'__NB_setval__'('$debug_status', state(creep, 0, stop)),
'$trace_on', !,
'$creep'.
'$enable_debugging'.

7
pl/bootutils.yap
View File

@ -1,3 +1,10 @@
/**
@file bootutils.c
@short utilities
@addtogroup Internal_Database
*/
/** @pred recordaifnot(+ _K_, _T_,- _R_)

8
pl/callcount.yap
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@ -17,8 +17,12 @@
%% @{
/** @defgroup Profiling Profiling Prolog Programs
@ingroup extensions
/**
@file callcount.yap
@short support call counting.
@defgroup Profiling Profiling Prolog Programs
@ingroup extensions
YAP includes two profilers. The count profiler keeps information on the
number of times a predicate was called. This information can be used to

42
pl/control.yap
View File

@ -546,29 +546,30 @@ b_getval(GlobalVariable, Val) :-
it saves the importante data about current streams and
debugger state */
'$debug_state'(state(Trace, Debug, Jump, Run, SPY_GN, GList)) :-
'$debug_state'(state(Trace, Debug, State, SPY_GN, GList, GDList)) :-
'$init_debugger',
nb_getval('$trace',Trace),
nb_getval('$debug_jump',Jump),
nb_getval('$debug_run',Run),
nb_getval('$debug_state',State),
current_prolog_flag(debug, Debug),
nb_getval('$spy_gn',SPY_GN),
b_getval('$spy_glist',GList).
b_getval('$spy_glist',GList),
b_getval('$spy_depth',GDList).
'$debug_stop'( State ) :-
'$debug_state'( State ),
'$debug_stop' :-
nb_setval('$debug_state', state(creep,0,stop)),
b_setval('$trace',off),
% set_prolog_flag(debug, false),
set_prolog_flag(debug, false),
b_setval('$spy_glist',[]),
b_setval('$spy_gdlist',[]),
'$disable_debugging'.
'$debug_restart'(state(Trace, Debug, Jump, Run, SPY_GN, GList)) :-
'$debug_restart'(state(Trace, Debug, State, SPY_GN, GList, GDList)) :-
b_setval('$spy_glist',GList),
b_setval('$spy_gdlist',GDList),
b_setval('$spy_gn',SPY_GN),
set_prolog_flag(debug, Debug),
b_setval('$debug_jump',Jump),
b_setval('$debug_run',Run),
nb_setval('$debug_state',State),
b_setval('$trace',Trace),
'$enable_debugging'.
@ -589,33 +590,20 @@ debugging.
*/
break :-
'$init_debugger',
nb_getval('$trace',Trace),
nb_setval('$trace',off),
nb_getval('$debug_jump',Jump),
nb_getval('$debug_run',Run),
current_prolog_flag(debug, Debug),
set_prolog_flag(debug, false),
'$debug_state'(DState),
'$debug_start',
'$break'( true ),
nb_getval('$spy_gn',SPY_GN),
b_getval('$spy_glist',GList),
b_setval('$spy_glist',[]),
current_output(OutStream), current_input(InpStream),
current_prolog_flag(break_level, BL ),
NBL is BL+1,
NBL is BL+1,
set_prolog_flag(break_level, NBL ),
format(user_error, '% Break (level ~w)~n', [NBL]),
'$do_live',
!,
set_value('$live','$true'),
b_setval('$spy_glist',GList),
nb_setval('$spy_gn',SPY_GN),
'$debug_restore'(DState),
set_input(InpStream),
set_output(OutStream),
set_prolog_flag(debug, Debug),
nb_setval('$debug_jump',Jump),
nb_setval('$debug_run',Run),
nb_setval('$trace',Trace),
set_prolog_flag(break_level, BL ),
'$break'( false ).

1
pl/dbload.yap
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@ -29,6 +29,7 @@
%%
% @defgroup YAPBigLoad Loading Large Tables
% @ingroup YAPConsulting
%
% @brief Fast and Exo Loading
%

17
pl/dialect.yap
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@ -1,3 +1,17 @@
/**
* @file dialect.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 10:50:33 2017
*
* @brief support Prolog dialects
*
* @defgroup Dialects
* @ingroup builtins
*
*/
:- module(dialect,
[
exists_source/1,
@ -6,6 +20,9 @@
:- use_system_module( '$_errors', ['$do_error'/2]).
%
%%
% @pred expects_dialect(+Dialect)
%
% True if YAP can enable support for a different Prolog dialect.

13
pl/directives.yap
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@ -15,6 +15,19 @@
* *
*************************************************************************/
/**
* @file directives.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 11:47:38 2017
*
* @brief Control File Loading
%
% @defgroup Directives
@ @ingroup consult
*
*
*/
:- system_module( '$_directives', [user_defined_directive/2], ['$all_directives'/1,
'$exec_directives'/5]).

12
pl/eam.yap
View File

@ -16,6 +16,18 @@
* *
*************************************************************************/
/**
* @file eam.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 11:50:05 2017
*
* @brief Extended Abstract Machine
* @defgroup EAM Extended Abstract Machine
* @ingroup extensions
*
*
*/
:- system_module( '$_eam', [eamconsult/1,
eamtrans/2], []).

4
pl/errors.yap
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@ -16,9 +16,9 @@
*************************************************************************/
/** @defgroup YAPError Error Handling
/** @defgroup YAPErrorHandler Error Handling
@ingroup YAPControl
@ingroup YAPErrors
The error handler is called when there is an execution error or a
warning needs to be displayed. The handlers include a number of hooks

12
pl/eval.yap
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@ -15,6 +15,18 @@
* *
*************************************************************************/
/**
* @file eval.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 11:52:48 2017
*
* @brief compiling expressions
*
* @defgroup CompiledExpressions
* @ingroup drectives
*
*
*/
:- system_module( '$_eval', [], ['$full_clause_optimisation'/4]).
:- use_system_module( terms, [new_variables_in_term/3,

11
pl/ground.yap
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@ -15,6 +15,17 @@
* *
*************************************************************************/
/**
* @file ground.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:01:27 2017
*
* @brief term operations
*
* @addtogroup YAPTypes
*
*
*/
/*
% grounds all free variables
% as terms of the form '$VAR'(N)

15
pl/hacks.yap
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@ -16,6 +16,17 @@
* *
*************************************************************************/
/**
* @file hacks.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:02:56 2017
*
* @brief Low-level access
*
* @defgroup Hacks Low-level access
* @ingroup builtins
*
*/
%% @file pl/hacks.yap
@ -207,10 +218,6 @@ beautify_hidden_goal('$continue_with_command'(top,V,P,G,_),prolog) -->
['Query'(G,V,P)].
beautify_hidden_goal('$continue_with_command'(Command,V,P,G,Source),prolog) -->
['TopLevel'(Command,G,V,P,Source)].
beautify_hidden_goal('$spycall'(G,M,InControl,Redo),prolog) -->
['DebuggerCall'(M:G, InControl, Redo)].
beautify_hidden_goal('$spycall'(Goal, Mod, _CP, Expanded),prolog) -->
['DebuggerCall'(Mod:Goal, Expanded)].
beautify_hidden_goal('$system_catch'(G,Mod,Exc,Handler),prolog) -->
[catch(Mod:G, Exc, Handler)].
beautify_hidden_goal('$catch'(G,Exc,Handler),prolog) -->

12
pl/listing.yap
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@ -15,6 +15,18 @@
* *
*************************************************************************/
/**
* @file listing.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:05:19 2017
*
* @brief list predicates in a module
*
* @defgroup Listing list predicates in a module
* @ingroup builtins
*
*/
:- system_module( '$_listing', [listing/0,
listing/1,
portray_clause/1,

10
pl/messages.yap
View File

@ -212,20 +212,22 @@ compose_message( loaded(included,AbsFileName,Mod,Time,Space), _Level) --> !,
compose_message( loaded(What,AbsoluteFileName,Mod,Time,Space), _Level) --> !,
[ '~a ~a in module ~a, ~d msec ~d bytes' -
[What, AbsoluteFileName,Mod,Time,Space] ].
compose_message(trace_command(-1), _Leve) -->
[ 'EOF is not a valid debugger command.' ].
compose_message(trace_command(C), _Leve) -->
[ '~c is not a valid debugger command.' - [C] ].
!,
[ '~a is not a valid debugger command.' - [C] ].
compose_message(trace_help, _Leve) -->
!,
[ ' Please enter a valid debugger command (h for help).' ].
compose_message(version(Version), _Leve) -->
!,
[ '~a' - [Version] ].
compose_message(myddas_version(Version), _Leve) -->
!,
[ 'MYDDAS version ~a' - [Version] ].
compose_message(yes, _Level) --> !,
[ 'yes'- [] ].
compose_message(Term, Level) -->
{ '$show_consult_level'(LC) },
{ '$show_consult_level'(LC) },
location(Term, Level, LC),
main_message( Term, Level, LC ),
c_goal( Term, Level ),

7
pl/meta.yap
View File

@ -366,8 +366,9 @@ o:p(B) :- n:g, X is 2+3, call(B).
'$yap_strip_module'( BM:G0, M0N, G0N),
'$user_expansion'(M0N:G0N, M1:G1),
'$import_expansion'(M1:G1, M2:G2),
'$meta_expansion'(M2:G2, M1, HVars, M2:B1F),
'$end_goal_expansion'(B1F, G1F, GOF, HM, SM, M2, H).
'$meta_expansion'(M2:G2, M1, HVars, M2B1F),
'$yap_strip_module'(M2B1F, M3, B1F),
'$end_goal_expansion'(B1F, G1F, GOF, HM, SM, M3, H).
'$end_goal_expansion'(G, G1F, GOF, HM, SM, BM, H) :-
'$match_mod'(G, HM, SM, BM, G1F),
@ -390,7 +391,7 @@ o:p(B) :- n:g, X is 2+3, call(B).
(
% \+ '$is_multifile'(G1,M),
%->
'$is_system_predicate'(G,prolog)
'$is_system_predicate'(G,M)
->
O = G
;

60
pl/modules.yap
View File

@ -21,6 +21,7 @@
@defgroup ModuleBuiltins Module Support
@ingroup YAPModules
@{
**/
@ -82,8 +83,8 @@
%
/**
\pred use_module( +Files ) is directive
@load a module file
@pred use_module( +Files ) is directive
@brief load a module file
This predicate loads the file specified by _Files_, importing all
their public predicates into the current type-in module. It is
@ -193,7 +194,7 @@ X = 2 ? ;
ERROR!!
EXISTENCE ERROR- procedure c/1 is undefined, called from context prolog:$user_call/2
Goal was c:c(_131290)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vv~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The state of the module system after this error is undefined.
@ -322,10 +323,9 @@ system_module(Mod) :-
'$is_system_module'(Mod).
'$trace_module'(X) :-
telling(F),
tell('P0:debug'),
write(X),nl,
tell(F), fail.
open('P0:debug', append, S),
fornat(S, '~w~n', [X]),
close(S).
'$trace_module'(_).
'$trace_module'(X,Y) :- X==Y, !.
@ -338,19 +338,23 @@ system_module(Mod) :-
tell(F),fail.
'$trace_module'(_,_).
/**
*
* @pred '$continue_imported'(+ModIn, +ModOut, +PredIn ,+PredOut)
*
* @return
*/
'$continue_imported'(Mod,Mod,Pred,Pred) :-
'$pred_exists'(Pred, Mod),
!.
'$continue_imported'(FM,Mod,FPred,Pred) :-
recorded('$import','$import'(IM,Mod,IPred,Pred,_,_),_),
recorded('$import','$import'(IM,Mod,IPred,Pred,_,_),_),
'$continue_imported'(FM, IM, FPred, IPred), !.
'$continue_imported'(FM,Mod,FPred,Pred) :-
prolog:'$parent_module'(Mod,IM),
'$continue_imported'(FM, IM, FPred, Pred).
% be careful here not to generate an undefined exception.
'$imported_predicate'(G, _ImportingMod, G, prolog) :-
nonvar(G), '$is_system_predicate'(G, prolog), !.
@ -359,19 +363,22 @@ system_module(Mod) :-
var(ImportingMod) -> true ;
'$undefined'(G, ImportingMod)
),
'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod),
ExportingMod \= ImportingMod,
!.
'$get_undefined_predicates'(G, ImportingMod, G0, ExportingMod),
ExportingMod \= ImportingMod.
'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod) :-
recorded('$import','$import'(ExportingModI,ImportingMod,G0I,G,_,_),_),
'$continue_imported'(ExportingMod, ExportingModI, G0, G0I),
'$get_undefined_predicates'(G, ImportingMod, G0, ExportingMod),
!.
'$get_undefined_predicates'(G, ImportingMod, G0, ExportingMod) :-
recorded('$import','$import'(ExportingModI,ImportingMod,G0I,G,_,_),_),
'$continue_imported'(ExportingMod, ExportingModI, G0, G0I).
% SWI builtin
'$get_undefined_pred'(G, _ImportingMod, G, user) :-
'$get_undefined_predicates'(G, _ImportingMod, G, user) :-
nonvar(G),
'$pred_exists'(G, user), !.
'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod) :-
'$pred_exists'(G, user).
% autoload
'$get_undefined_predicates'(G, ImportingMod, G0, ExportingMod) :-
recorded('$dialect',swi,_),
prolog_flag(autoload, true),
prolog_flag(unknown, OldUnk, fail),
@ -384,10 +391,8 @@ system_module(Mod) :-
fail
),
'$continue_imported'(ExportingMod, ExportingModI, G0, G).
% autoload
% parent module mechanism
'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod) :-
'$get_undefined_predicates'(G, ImportingMod, G0, ExportingMod) :-
'$parent_module'(ImportingMod,ExportingModI),
'$continue_imported'(ExportingMod, ExportingModI, G0, G).
@ -428,7 +433,7 @@ be associated to a new file.
\param[in] _Module_ is the name of the module to declare
\param[in] _MSuper_ is the name of the context module. Use `prolog`or `system`
if you do not need a context.
\param[in] _File_ is the canonical name of the file from which the module is loaded
\param[in] _File_ is the canonical name of the file from which the modulvvvvve is loaded
\param[in] Line is the line-number of the :- module/2 directive.
\param[in] If _Redefine_ `true`, allow associating the module to a new file
*/
@ -437,7 +442,7 @@ be associated to a new file.
add_import_module(Name, Context, start).
/**
\pred abolish_module( + Mod) is det
@pred abolish_module( + Mod) is det
get rid of a module and of all predicates included in the module.
*/
abolish_module(Mod) :-
@ -578,9 +583,10 @@ export_list(Module, List) :-
(C == y -> true; C == n).
/**
@pred set_base_module( +ExportingModule ) is det
All exported predicates from _ExportingModule_ are automatically available to the
current source module.
@pred set_base_module( +ExportingModule ) is det
@brief All
predicates exported from _ExportingModule_ are automatically available to the
other source modules.
This built-in was introduced by SWI-Prolog. In YAP, by default, modules only
inherit from `prolog`. This extension allows predicates in the current
@ -789,4 +795,4 @@ module_state :-
fail.
module_state.
%% @}
%% @}

5
pl/newmod.yap
View File

@ -1,4 +1,9 @@
/**
@file newmod.yap
@short support for creating a new module.
@ingroup ModuleBuiltins
@pred module(+M) is det
set the type-in module

71
pl/pl
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@ -1,71 +0,0 @@
/Users/vsc/git/yap-6.3/pl:
total used in directory 1768 available 23068011
-rw-r--r-- 1 vsc staff 13038 Apr 26 05:19 ##a##
-rw-r--r-- 1 vsc staff 6533 Apr 26 05:02 #a#
-rw-r--r-- 1 vsc staff 10769 Dec 22 00:56 #arith.yap#
-rw-r--r-- 1 vsc staff 38238 Nov 30 2014 #threads.yap#
drwxr-xr-x@ 69 vsc staff 2346 Jun 20 02:56 .
lrwxr-xr-x 1 vsc staff 36 Apr 26 05:15 .##a# -> vsc@VITORs-MacBook-Pro-2.local.13727
lrwxr-xr-x 1 vsc staff 36 Apr 26 04:54 .#a -> vsc@VITORs-MacBook-Pro-2.local.11698
drwxr-xr-x@ 130 vsc staff 4420 Jun 20 22:22 ..
-rw-r--r-- 1 vsc staff 1205 Jun 20 22:22 CMakeLists.txt
-rw-r--r-- 1 vsc staff 1183 Dec 10 2014 CMakeLists.txt~
-rw-r--r-- 1 vsc staff 6262 Apr 19 09:31 Makefile
-rw-r--r-- 1 vsc staff 6534 Apr 26 04:54 a
-rwxr-xr-x 1 vsc staff 23142 Jun 20 22:22 absf.yap
-rw-r--r-- 1 vsc staff 10776 Jan 4 23:42 arith.yap
-rw-r--r-- 1 vsc staff 3455 Jan 4 23:42 arithpreds.yap
-rw-r--r-- 1 vsc staff 2791 Jun 20 22:22 arrays.yap
-rw-r--r-- 1 vsc staff 6414 Apr 21 19:02 atoms.yap
-rw-r--r-- 1 vsc staff 16735 Jun 20 22:22 attributes.yap
-rw-r--r-- 1 vsc staff 34460 May 27 2014 b.yap~
-rw-r--r-- 1 vsc staff 38891 Jun 20 02:56 boot.yap
-rw-r--r-- 1 vsc staff 4347 Jan 4 23:42 callcount.yap
-rw-r--r-- 1 vsc staff 6778 Jan 4 23:42 checker.yap
-rw-r--r-- 1 vsc staff 3874 Jan 4 23:42 chtypes.yap
-rw-r--r--@ 1 vsc staff 51193 Jun 20 22:22 consult.yap
-rw-r--r-- 1 vsc staff 18465 May 3 18:46 control.yap
-rw-r--r-- 1 vsc staff 18089 Jan 4 23:42 corout.yap
-rw-r--r-- 1 vsc staff 4322 Jan 4 23:42 dbload.yap
-rw-r--r-- 1 vsc staff 38783 Jun 8 15:38 debug.yap
-rw-r--r-- 1 vsc staff 966 Jun 20 22:22 depth_bound.yap
-rw-r--r-- 1 vsc staff 2458 Jun 20 22:22 dialect.yap
-rw-r--r--@ 1 vsc staff 7586 Jun 20 22:22 directives.yap
-rwxr--r-- 1 vsc staff 2326 Jan 4 23:42 eam.yap
-rw-r--r-- 1 vsc staff 11527 Jun 6 08:02 errors.yap
-rw-r--r-- 1 vsc staff 4055 May 18 23:28 eval.yap
-rw-r--r-- 1 vsc staff 2885 Jun 5 07:42 flags.yap
-rw-r--r-- 1 vsc staff 6596 Jan 4 23:42 grammar.yap
-rw-r--r-- 1 vsc staff 1573 Jan 4 23:42 ground.yap
-rw-r--r-- 1 vsc staff 7876 Feb 20 08:18 hacks.yap
-rw-r--r--@ 1 vsc staff 8559 Jan 4 23:42 history.pl
-rw-r--r-- 1 vsc staff 8403 Jun 20 19:28 init.yap
-rw-r--r-- 1 vsc staff 8684 May 26 09:04 listing.yap
-rw-r--r-- 1 vsc staff 2206 May 15 01:12 lists.yap
-rw-r--r-- 1 vsc staff 7261 May 3 18:50 load_foreign.yap
-rw-r--r-- 1 vsc staff 26328 Jun 6 08:31 messages.yap
-rw-r--r--@ 1 vsc staff 55621 Jun 20 22:22 modules.yap
-rw-r--r-- 1 vsc staff 5028 Jan 7 02:21 os.yap
-rw-r--r-- 1 vsc staff 8061 May 26 08:43 preddecls.yap
-rw-r--r-- 1 vsc staff 13022 May 26 08:52 preddyns.yap
-rw-r--r-- 1 vsc staff 6687 May 26 08:37 preddyns.yap~
-rw-r--r-- 1 vsc staff 23891 Jun 20 22:22 preds.yap
-rw-r--r-- 1 vsc staff 7701 Jan 4 23:42 profile.yap
-rwxr-xr-x@ 1 vsc staff 2178 Jun 20 02:26 protect.yap
-rwxr-xr-x 1 vsc staff 25169 Jun 10 20:43 qly.yap
-rw-r--r-- 1 vsc staff 405 Jun 9 2014 rev
-rw-r--r-- 1 vsc staff 2050 Jan 4 23:42 save.yap
-rw-r--r-- 1 vsc staff 7368 Apr 5 22:22 setof.yap
-rw-r--r-- 1 vsc staff 10717 Jan 4 23:42 signals.yap
-rw-r--r-- 1 vsc staff 4761 Apr 5 22:22 sort.yap
-rw-r--r-- 1 vsc staff 12452 Jan 4 23:42 statistics.yap
-rw-r--r-- 1 vsc staff 6781 May 15 00:52 strict_iso.yap
-rw-r--r-- 1 vsc staff 2612 Jan 4 23:42 swi.yap
-rw-r--r-- 1 vsc staff 18915 May 18 23:28 tabling.yap
-rw-r--r-- 1 vsc staff 44648 May 18 23:28 threads.yap
-rw-r--r-- 1 vsc staff 748 Jan 4 23:42 udi.yap
-rw-r--r--@ 1 vsc staff 3753 Jun 8 19:56 undefined.yap
-rw-r--r-- 1 vsc staff 9281 Jan 4 23:42 utils.yap
-rw-r--r-- 1 vsc staff 804 Dec 2 2014 x~
-rw-r--r-- 1 vsc staff 7555 Jan 4 23:42 yapor.yap
-rw-r--r-- 1 vsc staff 9996 Jun 8 08:48 yio.yap

2
pl/preddyns.yap
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@ -4,7 +4,7 @@
/** @file preddyns.yap */
/**
* @ingroup Database
* @addtogroup Database
* @{
Next follow the main operations on dynamic predicates.

2
pl/protect.yap
View File

@ -19,7 +19,7 @@
/**
* @file protect.yap
* @addgroup ProtectCore Freeze System Configuration
* @ingroup CoreUtilities
* @ingroup YAPControl
*
* This protects current code from further changes
* and also makes it impossible for some predicates to be seen

11
pl/save.yap
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@ -15,6 +15,17 @@
* *
*************************************************************************/
/**
* @file save.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:10:47 2017
*
* @brief Old Style save
*
* @addtòxgroup QLY
*
*/
:- system_module( '$_save', [], []).
%%% Saving and restoring a computation

294
pl/signals.yap
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@ -1,170 +1,170 @@
/*************************************************************************
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: signals.pl *
* Last rev: *
* mods: *
* comments: signal handling in YAP *
* *
*************************************************************************/
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: signals.pl *
* Last rev: *
* mods: *
* comments: signal handling in YAP *
* *
*************************************************************************/
%%! @addtogroup OS
%% @{
:- system_module( '$_signals', [alarm/3,
on_exception/3,
on_signal/3,
raise_exception/1,
read_sig/0], []).
on_exception/3,
on_signal/3,
raise_exception/1,
read_sig/0], []).
:- use_system_module( '$_boot', ['$meta_call'/2]).
:- use_system_module( '$_debug', ['$spycall'/4]).
:- use_system_module( '$_debug', ['$trace'/1]).
:- use_system_module( '$_threads', ['$thread_gfetch'/1]).
/** @pred alarm(+ _Seconds_,+ _Callable_,+ _OldAlarm_)
Arranges for YAP to be interrupted in _Seconds_ seconds, or in
[ _Seconds_| _MicroSeconds_]. When interrupted, YAP will execute
_Callable_ and then return to the previous execution. If
_Seconds_ is `0`, no new alarm is scheduled. In any event,
any previously set alarm is canceled.
Arranges for YAP to be interrupted in _Seconds_ seconds, or in
[ _Seconds_| _MicroSeconds_]. When interrupted, YAP will execute
_Callable_ and then return to the previous execution. If
_Seconds_ is `0`, no new alarm is scheduled. In any event,
any previously set alarm is canceled.
The variable _OldAlarm_ unifies with the number of seconds remaining
until any previously scheduled alarm was due to be delivered, or with
`0` if there was no previously scheduled alarm.
The variable _OldAlarm_ unifies with the number of seconds remaining
until any previously scheduled alarm was due to be delivered, or with
`0` if there was no previously scheduled alarm.
Note that execution of _Callable_ will wait if YAP is
executing built-in predicates, such as Input/Output operations.
Note that execution of _Callable_ will wait if YAP is
executing built-in predicates, such as Input/Output operations.
The next example shows how _alarm/3_ can be used to implement a
simple clock:
The next example shows how _alarm/3_ can be used to implement a
simple clock:
~~~~~
loop :- loop.
~~~~~
loop :- loop.
ticker :- write('.'), flush_output,
get_value(tick, yes),
alarm(1,ticker,_).
ticker :- write('.'), flush_output,
get_value(tick, yes),
alarm(1,ticker,_).
:- set_value(tick, yes), alarm(1,ticker,_), loop.
~~~~~
:- set_value(tick, yes), alarm(1,ticker,_), loop.
~~~~~
The clock, `ticker`, writes a dot and then checks the flag
`tick` to see whether it can continue ticking. If so, it calls
itself again. Note that there is no guarantee that the each dot
corresponds a second: for instance, if the YAP is waiting for
user input, `ticker` will wait until the user types the entry in.
The clock, `ticker`, writes a dot and then checks the flag
`tick` to see whether it can continue ticking. If so, it calls
itself again. Note that there is no guarantee that the each dot
corresponds a second: for instance, if the YAP is waiting for
user input, `ticker` will wait until the user types the entry in.
The next example shows how alarm/3 can be used to guarantee that
a certain procedure does not take longer than a certain amount of time:
The next example shows how alarm/3 can be used to guarantee that
a certain procedure does not take longer than a certain amount of time:
~~~~~
loop :- loop.
~~~~~
loop :- loop.
:- catch((alarm(10, throw(ball), _),loop),
ball,
format('Quota exhausted.~n',[])).
~~~~~
In this case after `10` seconds our `loop` is interrupted,
`ball` is thrown, and the handler writes `Quota exhausted`.
Execution then continues from the handler.
:- catch((alarm(10, throw(ball), _),loop),
ball,
format('Quota exhausted.~n',[])).
~~~~~
In this case after `10` seconds our `loop` is interrupted,
`ball` is thrown, and the handler writes `Quota exhausted`.
Execution then continues from the handler.
Note that in this case `loop/0` always executes until the alarm is
sent. Often, the code you are executing succeeds or fails before the
alarm is actually delivered. In this case, you probably want to disable
the alarm when you leave the procedure. The next procedure does exactly so:
Note that in this case `loop/0` always executes until the alarm is
sent. Often, the code you are executing succeeds or fails before the
alarm is actually delivered. In this case, you probably want to disable
the alarm when you leave the procedure. The next procedure does exactly so:
~~~~~
once_with_alarm(Time,Goal,DoOnAlarm) :-
catch(execute_once_with_alarm(Time, Goal), alarm, DoOnAlarm).
~~~~~
once_with_alarm(Time,Goal,DoOnAlarm) :-
catch(execute_once_with_alarm(Time, Goal), alarm, DoOnAlarm).
execute_once_with_alarm(Time, Goal) :-
alarm(Time, alarm, _),
( call(Goal) -> alarm(0, alarm, _) ; alarm(0, alarm, _), fail).
~~~~~
execute_once_with_alarm(Time, Goal) :-
alarm(Time, alarm, _),
( call(Goal) -> alarm(0, alarm, _) ; alarm(0, alarm, _), fail).
~~~~~
The procedure `once_with_alarm/3` has three arguments:
the _Time_ to wait before the alarm is
sent; the _Goal_ to execute; and the goal _DoOnAlarm_ to execute
if the alarm is sent. It uses catch/3 to handle the case the
`alarm` is sent. Then it starts the alarm, calls the goal
_Goal_, and disables the alarm on success or failure.
The procedure `once_with_alarm/3` has three arguments:
the _Time_ to wait before the alarm is
sent; the _Goal_ to execute; and the goal _DoOnAlarm_ to execute
if the alarm is sent. It uses catch/3 to handle the case the
`alarm` is sent. Then it starts the alarm, calls the goal
_Goal_, and disables the alarm on success or failure.
*/
/** @pred on_signal(+ _Signal_,? _OldAction_,+ _Callable_)
Set the interrupt handler for soft interrupt _Signal_ to be
_Callable_. _OldAction_ is unified with the previous handler.
Set the interrupt handler for soft interrupt _Signal_ to be
_Callable_. _OldAction_ is unified with the previous handler.
Only a subset of the software interrupts (signals) can have their
handlers manipulated through on_signal/3.
Their POSIX names, YAP names and default behavior is given below.
The "YAP name" of the signal is the atom that is associated with
each signal, and should be used as the first argument to
on_signal/3. It is chosen so that it matches the signal's POSIX
name.
Only a subset of the software interrupts (signals) can have their
handlers manipulated through on_signal/3.
Their POSIX names, YAP names and default behavior is given below.
The "YAP name" of the signal is the atom that is associated with
each signal, and should be used as the first argument to
on_signal/3. It is chosen so that it matches the signal's POSIX
name.
on_signal/3 succeeds, unless when called with an invalid
signal name or one that is not supported on this platform. No checks
are made on the handler provided by the user.
on_signal/3 succeeds, unless when called with an invalid
signal name or one that is not supported on this platform. No checks
are made on the handler provided by the user.
+ sig_up (Hangup)
SIGHUP in Unix/Linux; Reconsult the initialization files
~/.yaprc, ~/.prologrc and ~/prolog.ini.
+ sig_usr1 and sig_usr2 (User signals)
SIGUSR1 and SIGUSR2 in Unix/Linux; Print a message and halt.
+ sig_up (Hangup)
SIGHUP in Unix/Linux; Reconsult the initialization files
~/.yaprc, ~/.prologrc and ~/prolog.ini.
+ sig_usr1 and sig_usr2 (User signals)
SIGUSR1 and SIGUSR2 in Unix/Linux; Print a message and halt.
A special case is made, where if _Callable_ is bound to
`default`, then the default handler is restored for that signal.
A special case is made, where if _Callable_ is bound to
`default`, then the default handler is restored for that signal.
A call in the form `on_signal( _S_, _H_, _H_)` can be used
to retrieve a signal's current handler without changing it.
A call in the form `on_signal( _S_, _H_, _H_)` can be used
to retrieve a signal's current handler without changing it.
It must be noted that although a signal can be received at all times,
the handler is not executed while YAP is waiting for a query at the
prompt. The signal will be, however, registered and dealt with as soon
as the user makes a query.
It must be noted that although a signal can be received at all times,
the handler is not executed while YAP is waiting for a query at the
prompt. The signal will be, however, registered and dealt with as soon
as the user makes a query.
Please also note, that neither POSIX Operating Systems nor YAP guarantee
that the order of delivery and handling is going to correspond with the
order of dispatch.
Please also note, that neither POSIX Operating Systems nor YAP guarantee
that the order of delivery and handling is going to correspond with the
order of dispatch.
*/
:- meta_predicate on_signal(+,?,:), alarm(+,:,-).
'$creep'(G) :-
% get the first signal from the mask
% get the first signal from the mask
'$first_signal'(Sig), !,
% process it
% process it
'$do_signal'(Sig, G).
'$creep'([M|G]) :-
% noise, just go on with our life.
% noise, just go on with our life.
'$execute'(M:G).
'$do_signal'(sig_wake_up, G) :-
'$awoken_goals'(LG),
% if more signals alive, set creep flag
% if more signals alive, set creep flag
'$continue_signals',
'$wake_up_goal'(G, LG).
% never creep on entering system mode!!!
% don't creep on meta-call.
% never creep on entering system mode!!!
% don't creep on meta-call.
'$do_signal'(sig_creep, MG) :-
'$disable_debugging',
'$start_creep'(MG, creep).
'$disable_debugging',
'$start_creep'(MG, creep).
'$do_signal'(sig_iti, [M|G]) :-
'$thread_gfetch'(Goal),
% if more signals alive, set creep flag
% if more signals alive, set creep flag
'$continue_signals',
'$current_module'(M0),
'$execute0'(Goal,M0),
@ -177,61 +177,17 @@ order of dispatch.
'$continue_signals',
debug,
'$execute'(M:G).
'$do_signal'(sig_break, [M|G]) :-
'$continue_signals',
break,
'$execute0'(G,M).
'$do_signal'(sig_statistics, [M|G]) :-
'$continue_signals',
statistics,
'$execute0'(G,M).
% the next one should never be called...
'$do_signal'(fail, [_|_]) :-
fail.
'$do_signal'(sig_stack_dump, [M|G]) :-
'$continue_signals',
'$hacks':'$stack_dump',
'$execute0'(G,M).
'$do_signal'(sig_fpe,G) :-
'$signal_handler'(sig_fpe, G).
'$do_signal'(sig_alarm, G) :-
'$signal_handler'(sig_alarm, G).
'$do_signal'(sig_vtalarm, G) :-
'$signal_handler'(sig_vtalarm, G).
'$do_signal'(sig_hup, G) :-
'$signal_handler'(sig_hup, G).
'$do_signal'(sig_usr1, G) :-
'$signal_handler'(sig_usr1, G).
'$do_signal'(sig_usr2, G) :-
'$signal_handler'(sig_usr2, G).
'$do_signal'(sig_pipe, G) :-
'$signal_handler'(sig_pipe, G).
'$signal_handler'(Sig, [M|G]) :-
'$signal_do'(Sig, Goal),
% if more signals alive, set creep flag
'$continue_signals',
'$current_module'(M0),
'$execute0'((Goal,M:G),M0).
% we may be creeping outside and coming back to system mode.
'$start_creep'([_M|G], _) :-
nonvar(G),
G = '$$cut_by'(CP),
!,
'$$cut_by'(CP).
'$start_creep'([Mod|G], _WhereFrom) :-
CP is '$last_choice_pt',
'$spycall'(G, Mod, CP, not_expanded).
'$start_creep'([Mod|G], _WhereFrom) :-
'$trace'([Mod|G]).
'$no_creep_call'('$execute_clause'(G,Mod,Ref,CP),_) :- !,
'$enable_debugging',
'$execute_clause'(G,Mod,Ref,CP).
'$no_creep_call'('$execute_nonstop'(G, M),_) :- !,
'$enable_debugging',
'$enable_debugging',
'$execute_nonstop'(G, M).
'$no_creep_call'(G, M) :-
'$enable_debugging',
'$enable_debugging',
'$execute_nonstop'(G, M).
@ -240,9 +196,9 @@ nonvar(G),
(
'$is_metapredicate'(G, Mod)
->
'$meta_call'(G,Mod)
'$meta_call'(G,Mod)
;
'$execute_nonstop'(G,Mod)
'$execute_nonstop'(G,Mod)
).
@ -251,16 +207,16 @@ nonvar(G),
'$signal_do'(Sig, Goal) :-
'$signal_def'(Sig, Goal).
% reconsult init files.
% reconsult init files. %
'$signal_def'(sig_hup, (( exists('~/.yaprc') -> [-'~/.yaprc'] ; true ),
( exists('~/.prologrc') -> [-'~/.prologrc'] ; true ),
( exists('~/prolog.ini') -> [-'~/prolog.ini'] ; true ))).
% die on signal default.
( exists('~/.prologrc') -> [-'~/.prologrc'] ; true ),
( exists('~/prolog.ini') -> [-'~/prolog.ini'] ; true ))).
% die on signal default. %
'$signal_def'(sig_usr1, throw(error(signal(usr1,[]),true))).
'$signal_def'(sig_usr2, throw(error(signal(usr2,[]),true))).
'$signal_def'(sig_pipe, throw(error(signal(pipe,[]),true))).
'$signal_def'(sig_fpe, throw(error(signal(fpe,[]),true))).
% ignore sig_alarm by default
% ignore sig_alarm by default %
'$signal_def'(sig_alarm, true).
@ -289,10 +245,10 @@ on_signal(Signal,OldAction,Action) :-
Goal = OldAction.
on_signal(Signal,OldAction,Action) :-
'$reset_signal'(Signal, OldAction),
% 13211-2 speaks only about callable
% 13211-2 speaks only about callable %
( Action = M:Goal -> true ; throw(error(type_error(callable,Action),on_signal/3)) ),
% the following disagrees with 13211-2:6.7.1.4 which disagrees with 13211-1:7.12.2a
% but the following agrees with 13211-1:7.12.2a
% the following disagrees with 13211-2:6.7.1.4 which disagrees with 13211-1:7.12.2a %
% but the following agrees with 13211-1:7.12.2a %
( nonvar(M) -> true ; throw(error(instantiation_error,on_signal/3)) ),
( atom(M) -> true ; throw(error(type_error(callable,Action),on_signal/3)) ),
( nonvar(Goal) -> true ; throw(error(instantiation_error,on_signal/3)) ),
@ -336,8 +292,8 @@ read_sig :-
fail.
read_sig.
%
% make thes predicates non-traceable.
% %
% make thes predicates non-traceable. %
:- '$set_no_trace'(current_choicepoint(_DCP), yap_hacks).
:- '$set_no_trace'('$current_choice_point'(_DCP), _).

25
pl/spy.yap
View File

@ -67,8 +67,7 @@ mode and the existing spy-points, when the debugger is on.
'__NB_setval__'('$if_skip_mode',no_skip),
'__NB_setval__'('$spy_glist',[]),
'__NB_setval__'('$spy_gn',1),
'__NB_setval__'('$debug_run',off),
'__NB_setval__'('$debug_jump',false).
'__NB_setval__'('$debug_state', state(creep,0,stop)).
% First part : setting and reseting spy points
@ -92,17 +91,9 @@ mode and the existing spy-points, when the debugger is on.
'$suspy_predicates_by_name'(A,S,M) :-
% just check one such predicate exists
(
current_predicate(A,M:_)
->
M = EM,
A = NA
;
recorded('$import','$import'(EM,M,GA,_,A,_),_),
functor(GA,NA,_)
),
current_predicate(A,M:_),
!,
'$do_suspy_predicates_by_name'(NA,S,EM).
'$do_suspy_predicates_by_name'(A,S,M).
'$suspy_predicates_by_name'(A,spy,M) :- !,
print_message(warning,no_match(spy(M:A))).
'$suspy_predicates_by_name'(A,nospy,M) :-
@ -111,10 +102,9 @@ mode and the existing spy-points, when the debugger is on.
'$do_suspy_predicates_by_name'(A,S,M) :-
current_predicate(A,M:T),
functor(T,A,N),
'$do_suspy'(S, A, N, T, M).
'$do_suspy_predicates_by_name'(A, S, M) :-
recorded('$import','$import'(EM,M,_,T,A,N),_),
'$do_suspy'(S, A, N, T, EM).
'$do_suspy'(S, A, N, T, M),
fail.
'$do_suspy_predicates_by_name'(_A, _S, _M).
%
@ -229,8 +219,7 @@ debug :-
;
set_prolog_flag(debug, false)
),
'__NB_setval__'('$debug_run',off),
'__NB_setval__'('$debug_jump',false).
'__NB_setval__'('$debug_state',state(creep,0,stop) ).
nodebug :-
'$init_debugger',

14
pl/statistics.yap
View File

@ -14,6 +14,20 @@
* comments: statistics on Prolog status *
* *
*************************************************************************/
/**
* @file statistics.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:13:51 2017
*
* @brief System Status
*
* @defgroup Statistics System Status
* @ingroup builtins
*
*
*/
:- system_module( '$_statistics', [key_statistics/3,
statistics/0,
statistics/2,

11
pl/strict_iso.yap
View File

@ -1,3 +1,14 @@
/**
* @file strict_iso.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:15:33 2017
*
* @brief StrictISO Mode
*
* @addtogroup YAPCompilerSettings
*
*
*/
:- system_module( '$_strict_iso', [], ['$check_iso_strict_clause'/1,
'$iso_check_goal'/2]).

11
pl/swi.yap
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@ -1,3 +1,14 @@
/**
* @file swi.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:18:05 2017
*
* @brief SWI Emulation support
*
* @ingroup dialects
*
*
*/
:- module('$swi',
[]).

12
pl/udi.yap
View File

@ -14,6 +14,18 @@
* comments: support user defined indexing *
* *
*************************************************************************/
/**
* @file udi.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:19:04 2017
*
* @brief User Defined Extensions
*
* @addgroup UDI User Defined Extensions
* @ingroup extensions
*
*
*/
:- system_module( '$_udi', [udi/1], []).

13
pl/utils.yap
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@ -15,6 +15,19 @@
* *
*************************************************************************/
/**
* @file utils.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:21:01 2017
*
* @brief Utilities
*
* @defgroup MixBag Diverse Utilities
* @ingroup builtin
*
*
*/
:- system_module( '$_utils', [callable/1,
current_op/3,
nb_current/2,

12
pl/yapor.yap
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@ -1,3 +1,15 @@
/**
* @file yapor.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:23:00 2017
*
* @brief Or-Parallelism
*
* @defgroup YapOR Or-Parallelism
@ @ingroup extensions
*
*
*/
:- system_module( '$_utils', [callable/1,
current_op/3,
nb_current/2,