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% -----------------------------------------------------------------------------
% (C) Altran Praxis Limited
% -----------------------------------------------------------------------------
%
% The SPARK toolset is free software; you can redistribute it and/or modify it
% under terms of the GNU General Public License as published by the Free
% Software Foundation; either version 3, or (at your option) any later
% version. The SPARK toolset is distributed in the hope that it will be
% useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
% Public License for more details. You should have received a copy of the GNU
% General Public License distributed with the SPARK toolset; see file
% COPYING3. If not, go to http://www.gnu.org/licenses for a complete copy of
% the license.
%
% =============================================================================
%###############################################################################
% PURPOSE
%-------------------------------------------------------------------------------
% Predicate to support saving, merging and viewing of usage data.
%###############################################################################
%###############################################################################
% MODULE
%###############################################################################
%###############################################################################
% DEPENDENCIES
%###############################################################################
:- use_module(gauge_simplifier,
[view/1]).
:- use_module('data__switches.pro',
[get_switch_usage/1]).
%###############################################################################
% TYPES
%###############################################################################
%###############################################################################
% DATA
%###############################################################################
%
% Predicate used to save all the usage data across across multiple
% executions of the Simplifier.
%
:- dynamic usage_data/3.
%
% Values for selection and resolution used in predicate profile_data.
%
selection([calls, choice_points, instructions]).
resolution([predicate, clause]).
%###############################################################################
% PREDICATES
%###############################################################################
%###############################################################################
% save_usage_data
%-------------------------------------------------------------------------------
% Save usage data. If usage data already exists then load in the data, merge
% and then save it.
%###############################################################################
save_usage_data :-
get_switch_usage(provided_usage_file(Filename)),
save_usage_data_x(Filename),
!.
% File exists.
save_usage_data_x(Filename):-
file_exists(Filename),
!,
load_files(Filename),
process_all_usage_data,
save_predicates([usage_data/3], Filename).
% File does not exist.
save_usage_data_x(Filename):-
!,
process_all_usage_data,
save_predicates([usage_data/3], Filename).
%###############################################################################
% process_all_usage_data
%-------------------------------------------------------------------------------
% Collect new usage data and merge it with saved existing usage data if
% they exist.
%###############################################################################
process_all_usage_data :-
selection(Sel_List),
resolution(Res_List),
process_usage_data_sel_list_res_list(Sel_List, Res_List).
process_usage_data_sel_list_res_list(Sel_List, Res_List):-
member(Selection, Sel_List),
member(Resolution, Res_List),
process_usage_data_sel_res(Selection, Resolution),
fail.
process_usage_data_sel_list_res_list(_Sel_List, _Res_List):-
!.
process_usage_data_sel_res(Selection, Resolution):-
usage_data(Selection, Resolution, ExistingData),
!,
profile_data([_], Selection, Resolution, Data),
retract(usage_data(Selection, Resolution, ExistingData)),
merge_pair_lists(Data, ExistingData, NewData),
assert(usage_data(Selection, Resolution, NewData)).
process_usage_data_sel_res(Selection, Resolution):-
\+ usage_data(Selection, Resolution, _),
!,
profile_data([_], Selection, Resolution, Data),
assert(usage_data(Selection, Resolution, Data)).
%###############################################################################
% merge_pair_lists(+List1, +List2, -ListMerged)
%-------------------------------------------------------------------------------
% Merge two lists containing usage data together. Note that keysort
% does not remove duplicates so no data is lost.
%###############################################################################
merge_pair_lists(List1, List2, MergedList):-
append(List1, List2, TmpList),
keysort(TmpList, SortedList),
process_duplicate_keys(SortedList, MergedList),
!.
%###############################################################################
% process_duplicate_keys(+SortedList, -MergedSortedList[]).
%-------------------------------------------------------------------------------
% Merge two lists containing usage data. Note that keysort (see above)
% does not remove duplicates so no data is lost.
%###############################################################################
process_duplicate_keys([], []) :- !.
process_duplicate_keys([H], [H]) :- !.
% If the two elements at the head of the list have the same key then merge them.
process_duplicate_keys([H1-V1,H1-V2|T], [H1-V_sum|L]) :-
V_sum is V1 + V2,
process_duplicate_keys(T, L),
!.
% Case when two head elements in the list have different keys.
process_duplicate_keys([H1-V1,H2-V2|T], [H1-V1|L]) :-
process_duplicate_keys([H2-V2|T], L),
!.
%###############################################################################
% view_usage.
%
% Predicate for viewing collected usage data through predicates provided
% by the modified gauge_simplifier.
%###############################################################################
view_usage:-
get_switch_usage(provided_usage_file(Filename)),
file_exists(Filename),
load_files(Filename),
view([_]).
%###############################################################################
% END-OF-FILE
|
