Mercurial > octave-nkf
view scripts/general/profexplore.m @ 17338:1c89599167a6
maint: End m-files with 1 blank line.
Simplifies automated grammarchecking script.
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author | Rik <rik@octave.org> |
---|---|
date | Wed, 28 Aug 2013 08:33:02 -0700 |
parents | bc924baa2c4e |
children | d63878346099 |
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## Copyright (C) 2012 Daniel Kraft ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave 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 ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} profexplore () ## @deftypefnx {Function File} {} profexplore (@var{data}) ## Interactively explore hierarchical profiler output. ## ## Assuming @var{data} is the structure with profile data returned by ## @code{profile (@qcode{"info"})}, this command opens an interactive prompt ## that can be used to explore the call-tree. Type @kbd{help} to get a list ## of possible commands. If @var{data} is omitted, @code{profile ("info")} ## is called and used in its place. ## @seealso{profile, profshow} ## @end deftypefn ## Built-in profiler. ## Author: Daniel Kraft <d@domob.eu> function profexplore (data) if (nargin == 0) data = profile ("info"); elseif (nargin != 1) print_usage (); endif ## The actual work is done by a recursive worker function, since that ## is an easy way to traverse the tree datastructure. Here, we just check ## the arguments (already done) and give over to it. __profexplore_worker (data.FunctionTable, data.Hierarchical, "Top\n", " "); endfunction ## This is the worker function. tree is the current subtree we want to ## display / explore. parents is a string containing the already "rendered" ## data for the parents which is displayed on top of the list of current ## children. prefix is the prefix to add to each line rendered; this ## is just a string of spaces to get indentation right. ## ## Returning 0 indicates that the user requested to totally exit the ## explorer, thus also all higher levels should exit immediately. An integer ## greater zero indicates to exit that many levels since the user wants to go ## up (but not necessarily quit). function rv = __profexplore_worker (fcn_table, tree, parents, prefix) ## Sort children by total time. times = -[ tree.TotalTime ]; [~, p] = sort (times); tree = tree(p); while (true) printf ("\n%s", parents); strings = cell (length (tree), 1); for i = 1 : length (tree) strings{i} = sprintf ("%s: %d calls, %.3f total, %.3f self", ... fcn_table(tree(i).Index).FunctionName, ... tree(i).NumCalls, ... tree(i).TotalTime, tree(i).SelfTime); printf ("%s%d) %s\n", prefix, i, strings{i}); endfor printf ("\n"); cmd = input ("profexplore> ", "s"); option = fix (str2double (cmd)); if (strcmp (cmd, "exit") || strcmp (cmd, "quit")) rv = 0; return; elseif (strcmp (cmd, "help")) printf ("\nCommands for profile explorer:\n\n"); printf ("exit Return to Octave prompt.\n"); printf ("quit Return to Octave prompt.\n"); printf ("help Display this help message.\n"); printf ("up [N] Go up N levels, where N is an integer. Default is 1.\n"); printf ("N Go down a level into option N.\n"); elseif (! isnan (option)) if (option < 1 || option > length (tree)) printf ("The chosen option is out of range!\n"); else newParents = sprintf ("%s%s%s\n", parents, prefix, strings{option}); newPrefix = sprintf ("%s ", prefix); rv = __profexplore_worker (fcn_table, tree(option).Children, ... newParents, newPrefix); if (rv == 0) return; elseif (rv > 1) rv = rv - 1; return; else assert (rv == 1); ## It was requested to return to this level, so just stay. endif endif elseif (length (cmd) >= 2 && strcmp (substr (cmd, 1, 2), "up")) if (length (cmd) == 2) rv = 1; return; endif if (length (cmd) > 3 && cmd(3) == ' ') opt = fix (str2double (substr (cmd, 3))); if (! isnan (opt) && opt > 0) rv = opt; return; endif endif printf ("Invalid 'up' command. Type 'help' for further"); printf (" information.\n"); else printf ("Unrecognized input. Type 'help' to get a list of possible"); printf (" commands.\n"); endif endwhile endfunction