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<?php
// Copyright (c) 2009 Facebook
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
*
* A callgraph generator for XHProf.
*
* * This file is part of the UI/reporting component,
* used for viewing results of XHProf runs from a
* browser.
*
* Modification History:
* 02/15/2008 - cjiang - The first version of callgraph visualizer
* based on Graphviz's DOT tool.
*
* @author Changhao Jiang (cjiang@facebook.com)
*/
// by default assume that xhprof_html & xhprof_lib directories
// are at the same level.
$GLOBALS['XHPROF_LIB_ROOT'] = dirname(__FILE__) . '/../xhprof_lib';
require_once $GLOBALS['XHPROF_LIB_ROOT'].'/display/xhprof.php';
ini_set('max_execution_time', 100);
$params = array(// run id param
'run' => array(XHPROF_STRING_PARAM, ''),
// source/namespace/type of run
'source' => array(XHPROF_STRING_PARAM, 'xhprof'),
// the focus function, if it is set, only directly
// parents/children functions of it will be shown.
'func' => array(XHPROF_STRING_PARAM, ''),
// image type, can be 'jpg', 'gif', 'ps', 'png'
'type' => array(XHPROF_STRING_PARAM, 'png'),
// only functions whose exclusive time over the total time
// is larger than this threshold will be shown.
// default is 0.01.
'threshold' => array(XHPROF_FLOAT_PARAM, 0.01),
// whether to show critical_path
'critical' => array(XHPROF_BOOL_PARAM, true),
// first run in diff mode.
'run1' => array(XHPROF_STRING_PARAM, ''),
// second run in diff mode.
'run2' => array(XHPROF_STRING_PARAM, '')
);
// pull values of these params, and create named globals for each param
xhprof_param_init($params);
// if invalid value specified for threshold, then use the default
if ($threshold < 0 || $threshold > 1) {
$threshold = $params['threshold'][1];
}
// if invalid value specified for type, use the default
if (!array_key_exists($type, $xhprof_legal_image_types)) {
$type = $params['type'][1]; // default image type.
}
$xhprof_runs_impl = new XHProfRuns_Default();
if (!empty($run)) {
// single run call graph image generation
xhprof_render_image($xhprof_runs_impl, $run, $type,
$threshold, $func, $source, $critical);
} else {
// diff report call graph image generation
xhprof_render_diff_image($xhprof_runs_impl, $run1, $run2,
$type, $threshold, $source);
}
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