mirror of
https://we.phorge.it/source/phorge.git
synced 2024-11-25 16:22:43 +01:00
866 lines
24 KiB
PHP
866 lines
24 KiB
PHP
<?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.
|
|
//
|
|
|
|
//
|
|
// This file contains various XHProf library (utility) functions.
|
|
// Do not add any display specific code here.
|
|
//
|
|
|
|
function xhprof_error($message) {
|
|
error_log($message);
|
|
}
|
|
|
|
/*
|
|
* The list of possible metrics collected as part of XHProf that
|
|
* require inclusive/exclusive handling while reporting.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_possible_metrics() {
|
|
static $possible_metrics =
|
|
array("wt" => array("Wall", "microsecs", "walltime" ),
|
|
"ut" => array("User", "microsecs", "user cpu time" ),
|
|
"st" => array("Sys", "microsecs", "system cpu time"),
|
|
"cpu" => array("Cpu", "microsecs", "cpu time"),
|
|
"mu" => array("MUse", "bytes", "memory usage"),
|
|
"pmu" => array("PMUse", "bytes", "peak memory usage"),
|
|
"samples" => array("Samples", "samples", "cpu time"));
|
|
return $possible_metrics;
|
|
}
|
|
|
|
/*
|
|
* Get the list of metrics present in $xhprof_data as an array.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_metrics($xhprof_data) {
|
|
|
|
// get list of valid metrics
|
|
$possible_metrics = xhprof_get_possible_metrics();
|
|
|
|
// return those that are present in the raw data.
|
|
// We'll just look at the root of the subtree for this.
|
|
$metrics = array();
|
|
foreach ($possible_metrics as $metric => $desc) {
|
|
if (isset($xhprof_data["main()"][$metric])) {
|
|
$metrics[] = $metric;
|
|
}
|
|
}
|
|
|
|
return $metrics;
|
|
}
|
|
|
|
/**
|
|
* Takes a parent/child function name encoded as
|
|
* "a==>b" and returns array("a", "b").
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_parse_parent_child($parent_child) {
|
|
$ret = explode("==>", $parent_child);
|
|
|
|
// Return if both parent and child are set
|
|
if (isset($ret[1])) {
|
|
return $ret;
|
|
}
|
|
|
|
return array(null, $ret[0]);
|
|
}
|
|
|
|
/**
|
|
* Given parent & child function name, composes the key
|
|
* in the format present in the raw data.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_build_parent_child_key($parent, $child) {
|
|
if ($parent) {
|
|
return $parent . "==>" . $child;
|
|
} else {
|
|
return $child;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Checks if XHProf raw data appears to be valid and not corrupted.
|
|
*
|
|
* @param int $run_id Run id of run to be pruned.
|
|
* [Used only for reporting errors.]
|
|
* @param array $raw_data XHProf raw data to be pruned
|
|
* & validated.
|
|
*
|
|
* @return bool true on success, false on failure
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_valid_run($run_id, $raw_data) {
|
|
|
|
$main_info = $raw_data["main()"];
|
|
if (empty($main_info)) {
|
|
xhprof_error("XHProf: main() missing in raw data for Run ID: $run_id");
|
|
return false;
|
|
}
|
|
|
|
// raw data should contain either wall time or samples information...
|
|
if (isset($main_info["wt"])) {
|
|
$metric = "wt";
|
|
} else if (isset($main_info["samples"])) {
|
|
$metric = "samples";
|
|
} else {
|
|
xhprof_error("XHProf: Wall Time information missing from Run ID: $run_id");
|
|
return false;
|
|
}
|
|
|
|
foreach ($raw_data as $info) {
|
|
$val = $info[$metric];
|
|
|
|
// basic sanity checks...
|
|
if ($val < 0) {
|
|
xhprof_error("XHProf: $metric should not be negative: Run ID $run_id"
|
|
. serialize($info));
|
|
return false;
|
|
}
|
|
if ($val > (86400000000)) {
|
|
xhprof_error("XHProf: $metric > 1 day found in Run ID: $run_id "
|
|
. serialize($info));
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Return a trimmed version of the XHProf raw data. Note that the raw
|
|
* data contains one entry for each unique parent/child function
|
|
* combination.The trimmed version of raw data will only contain
|
|
* entries where either the parent or child function is in the list
|
|
* of $functions_to_keep.
|
|
*
|
|
* Note: Function main() is also always kept so that overall totals
|
|
* can still be obtained from the trimmed version.
|
|
*
|
|
* @param array XHProf raw data
|
|
* @param array array of function names
|
|
*
|
|
* @return array Trimmed XHProf Report
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_trim_run($raw_data, $functions_to_keep) {
|
|
|
|
// convert list of functions to a hash with function as the key
|
|
$function_map = array_fill_keys($functions_to_keep, 1);
|
|
|
|
// always keep main() as well so that overall totals can still
|
|
// be computed if need be.
|
|
$function_map['main()'] = 1;
|
|
|
|
$new_raw_data = array();
|
|
foreach ($raw_data as $parent_child => $info) {
|
|
list($parent, $child) = xhprof_parse_parent_child($parent_child);
|
|
|
|
if (isset($function_map[$parent]) || isset($function_map[$child])) {
|
|
$new_raw_data[$parent_child] = $info;
|
|
}
|
|
}
|
|
|
|
return $new_raw_data;
|
|
}
|
|
|
|
/**
|
|
* Takes raw XHProf data that was aggregated over "$num_runs" number
|
|
* of runs averages/nomalizes the data. Essentially the various metrics
|
|
* collected are divided by $num_runs.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_normalize_metrics($raw_data, $num_runs) {
|
|
|
|
if (empty($raw_data) || ($num_runs == 0)) {
|
|
return $raw_data;
|
|
}
|
|
|
|
$raw_data_total = array();
|
|
|
|
if (isset($raw_data["==>main()"]) && isset($raw_data["main()"])) {
|
|
xhprof_error("XHProf Error: both ==>main() and main() set in raw data...");
|
|
}
|
|
|
|
foreach ($raw_data as $parent_child => $info) {
|
|
foreach ($info as $metric => $value) {
|
|
$raw_data_total[$parent_child][$metric] = ($value / $num_runs);
|
|
}
|
|
}
|
|
|
|
return $raw_data_total;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get raw data corresponding to specified array of runs
|
|
* aggregated by certain weightage.
|
|
*
|
|
* Suppose you have run:5 corresponding to page1.php,
|
|
* run:6 corresponding to page2.php,
|
|
* and run:7 corresponding to page3.php
|
|
*
|
|
* and you want to accumulate these runs in a 2:4:1 ratio. You
|
|
* can do so by calling:
|
|
*
|
|
* xhprof_aggregate_runs(array(5, 6, 7), array(2, 4, 1));
|
|
*
|
|
* The above will return raw data for the runs aggregated
|
|
* in 2:4:1 ratio.
|
|
*
|
|
* @param object $xhprof_runs_impl An object that implements
|
|
* the iXHProfRuns interface
|
|
* @param array $runs run ids of the XHProf runs..
|
|
* @param array $wts integral (ideally) weights for $runs
|
|
* @param string $source source to fetch raw data for run from
|
|
* @param bool $use_script_name If true, a fake edge from main() to
|
|
* to __script::<scriptname> is introduced
|
|
* in the raw data so that after aggregations
|
|
* the script name is still preserved.
|
|
*
|
|
* @return array Return aggregated raw data
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_aggregate_runs($xhprof_runs_impl, $runs,
|
|
$wts, $source="phprof",
|
|
$use_script_name=false) {
|
|
|
|
$raw_data_total = null;
|
|
$raw_data = null;
|
|
$metrics = array();
|
|
|
|
$run_count = count($runs);
|
|
$wts_count = count($wts);
|
|
|
|
if (($run_count == 0) ||
|
|
(($wts_count > 0) && ($run_count != $wts_count))) {
|
|
return array('description' => 'Invalid input..',
|
|
'raw' => null);
|
|
}
|
|
|
|
$bad_runs = array();
|
|
foreach($runs as $idx => $run_id) {
|
|
|
|
$raw_data = $xhprof_runs_impl->get_run($run_id, $source, '?');
|
|
|
|
// use the first run to derive what metrics to aggregate on.
|
|
if ($idx == 0) {
|
|
foreach ($raw_data["main()"] as $metric => $val) {
|
|
if ($metric != "pmu") {
|
|
// for now, just to keep data size small, skip "peak" memory usage
|
|
// data while aggregating.
|
|
// The "regular" memory usage data will still be tracked.
|
|
if (isset($val)) {
|
|
$metrics[] = $metric;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!xhprof_valid_run($run_id, $raw_data)) {
|
|
$bad_runs[] = $run_id;
|
|
continue;
|
|
}
|
|
|
|
if ($use_script_name) {
|
|
$page = '?';
|
|
|
|
// create a fake function '__script::$page', and have and edge from
|
|
// main() to '__script::$page'. We will also need edges to transfer
|
|
// all edges originating from main() to now originate from
|
|
// '__script::$page' to all function called from main().
|
|
//
|
|
// We also weight main() ever so slightly higher so that
|
|
// it shows up above the new entry in reports sorted by
|
|
// inclusive metrics or call counts.
|
|
if ($page) {
|
|
foreach($raw_data["main()"] as $metric => $val) {
|
|
$fake_edge[$metric] = $val;
|
|
$new_main[$metric] = $val + 0.00001;
|
|
}
|
|
$raw_data["main()"] = $new_main;
|
|
$raw_data[xhprof_build_parent_child_key("main()",
|
|
"__script::$page")]
|
|
= $fake_edge;
|
|
} else {
|
|
$use_script_name = false;
|
|
}
|
|
}
|
|
|
|
// if no weights specified, use 1 as the default weightage..
|
|
$wt = ($wts_count == 0) ? 1 : $wts[$idx];
|
|
|
|
// aggregate $raw_data into $raw_data_total with appropriate weight ($wt)
|
|
foreach ($raw_data as $parent_child => $info) {
|
|
if ($use_script_name) {
|
|
// if this is an old edge originating from main(), it now
|
|
// needs to be from '__script::$page'
|
|
if (substr($parent_child, 0, 9) == "main()==>") {
|
|
$child =substr($parent_child, 9);
|
|
// ignore the newly added edge from main()
|
|
if (substr($child, 0, 10) != "__script::") {
|
|
$parent_child = xhprof_build_parent_child_key("__script::$page",
|
|
$child);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!isset($raw_data_total[$parent_child])) {
|
|
foreach ($metrics as $metric) {
|
|
$raw_data_total[$parent_child][$metric] = ($wt * $info[$metric]);
|
|
}
|
|
} else {
|
|
foreach ($metrics as $metric) {
|
|
$raw_data_total[$parent_child][$metric] += ($wt * $info[$metric]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$runs_string = implode(",", $runs);
|
|
|
|
if (isset($wts)) {
|
|
$wts_string = "in the ratio (" . implode(":", $wts) . ")";
|
|
$normalization_count = array_sum($wts);
|
|
} else {
|
|
$wts_string = "";
|
|
$normalization_count = $run_count;
|
|
}
|
|
|
|
$run_count = $run_count - count($bad_runs);
|
|
|
|
$data['description'] = "Aggregated Report for $run_count runs: ".
|
|
"$runs_string $wts_string\n";
|
|
$data['raw'] = xhprof_normalize_metrics($raw_data_total,
|
|
$normalization_count);
|
|
$data['bad_runs'] = $bad_runs;
|
|
|
|
return $data;
|
|
}
|
|
|
|
|
|
/**
|
|
* Analyze hierarchical raw data, and compute per-function (flat)
|
|
* inclusive and exclusive metrics.
|
|
*
|
|
* Also, store overall totals in the 2nd argument.
|
|
*
|
|
* @param array $raw_data XHProf format raw profiler data.
|
|
* @param array &$overall_totals OUT argument for returning
|
|
* overall totals for various
|
|
* metrics.
|
|
* @return array Returns a map from function name to its
|
|
* call count and inclusive & exclusive metrics
|
|
* (such as wall time, etc.).
|
|
*
|
|
* @author Kannan Muthukkaruppan
|
|
*/
|
|
function xhprof_compute_flat_info($raw_data, &$overall_totals) {
|
|
|
|
global $display_calls;
|
|
|
|
$metrics = xhprof_get_metrics($raw_data);
|
|
|
|
$overall_totals = array( "ct" => 0,
|
|
"wt" => 0,
|
|
"ut" => 0,
|
|
"st" => 0,
|
|
"cpu" => 0,
|
|
"mu" => 0,
|
|
"pmu" => 0,
|
|
"samples" => 0
|
|
);
|
|
|
|
// compute inclusive times for each function
|
|
$symbol_tab = xhprof_compute_inclusive_times($raw_data);
|
|
|
|
/* total metric value is the metric value for "main()" */
|
|
foreach ($metrics as $metric) {
|
|
$overall_totals[$metric] = $symbol_tab["main()"][$metric];
|
|
}
|
|
|
|
/*
|
|
* initialize exclusive (self) metric value to inclusive metric value
|
|
* to start with.
|
|
* In the same pass, also add up the total number of function calls.
|
|
*/
|
|
foreach ($symbol_tab as $symbol => $info) {
|
|
foreach ($metrics as $metric) {
|
|
$symbol_tab[$symbol]["excl_" . $metric] = $symbol_tab[$symbol][$metric];
|
|
}
|
|
if ($display_calls) {
|
|
/* keep track of total number of calls */
|
|
$overall_totals["ct"] += $info["ct"];
|
|
}
|
|
}
|
|
|
|
/* adjust exclusive times by deducting inclusive time of children */
|
|
foreach ($raw_data as $parent_child => $info) {
|
|
list($parent, $child) = xhprof_parse_parent_child($parent_child);
|
|
|
|
if ($parent) {
|
|
foreach ($metrics as $metric) {
|
|
// make sure the parent exists hasn't been pruned.
|
|
if (isset($symbol_tab[$parent])) {
|
|
$symbol_tab[$parent]["excl_" . $metric] -= $info[$metric];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $symbol_tab;
|
|
}
|
|
|
|
/**
|
|
* Hierarchical diff:
|
|
* Compute and return difference of two call graphs: Run2 - Run1.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_compute_diff($xhprof_data1, $xhprof_data2) {
|
|
global $display_calls;
|
|
|
|
// use the second run to decide what metrics we will do the diff on
|
|
$metrics = xhprof_get_metrics($xhprof_data2);
|
|
|
|
$xhprof_delta = $xhprof_data2;
|
|
|
|
foreach ($xhprof_data1 as $parent_child => $info) {
|
|
|
|
if (!isset($xhprof_delta[$parent_child])) {
|
|
|
|
// this pc combination was not present in run1;
|
|
// initialize all values to zero.
|
|
if ($display_calls) {
|
|
$xhprof_delta[$parent_child] = array("ct" => 0);
|
|
} else {
|
|
$xhprof_delta[$parent_child] = array();
|
|
}
|
|
foreach ($metrics as $metric) {
|
|
$xhprof_delta[$parent_child][$metric] = 0;
|
|
}
|
|
}
|
|
|
|
if ($display_calls) {
|
|
$xhprof_delta[$parent_child]["ct"] -= $info["ct"];
|
|
}
|
|
|
|
foreach ($metrics as $metric) {
|
|
$xhprof_delta[$parent_child][$metric] -= $info[$metric];
|
|
}
|
|
}
|
|
|
|
return $xhprof_delta;
|
|
}
|
|
|
|
|
|
/**
|
|
* Compute inclusive metrics for function. This code was factored out
|
|
* of xhprof_compute_flat_info().
|
|
*
|
|
* The raw data contains inclusive metrics of a function for each
|
|
* unique parent function it is called from. The total inclusive metrics
|
|
* for a function is therefore the sum of inclusive metrics for the
|
|
* function across all parents.
|
|
*
|
|
* @return array Returns a map of function name to total (across all parents)
|
|
* inclusive metrics for the function.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_compute_inclusive_times($raw_data) {
|
|
global $display_calls;
|
|
|
|
$metrics = xhprof_get_metrics($raw_data);
|
|
|
|
$symbol_tab = array();
|
|
|
|
/*
|
|
* First compute inclusive time for each function and total
|
|
* call count for each function across all parents the
|
|
* function is called from.
|
|
*/
|
|
foreach ($raw_data as $parent_child => $info) {
|
|
|
|
list($parent, $child) = xhprof_parse_parent_child($parent_child);
|
|
|
|
if ($parent == $child) {
|
|
/*
|
|
* XHProf PHP extension should never trigger this situation any more.
|
|
* Recursion is handled in the XHProf PHP extension by giving nested
|
|
* calls a unique recursion-depth appended name (for example, foo@1).
|
|
*/
|
|
xhprof_error("Error in Raw Data: parent & child are both: $parent");
|
|
return;
|
|
}
|
|
|
|
if (!isset($symbol_tab[$child])) {
|
|
|
|
if ($display_calls) {
|
|
$symbol_tab[$child] = array("ct" => $info["ct"]);
|
|
} else {
|
|
$symbol_tab[$child] = array();
|
|
}
|
|
foreach ($metrics as $metric) {
|
|
$symbol_tab[$child][$metric] = $info[$metric];
|
|
}
|
|
} else {
|
|
if ($display_calls) {
|
|
/* increment call count for this child */
|
|
$symbol_tab[$child]["ct"] += $info["ct"];
|
|
}
|
|
|
|
/* update inclusive times/metric for this child */
|
|
foreach ($metrics as $metric) {
|
|
$symbol_tab[$child][$metric] += $info[$metric];
|
|
}
|
|
}
|
|
}
|
|
|
|
return $symbol_tab;
|
|
}
|
|
|
|
|
|
/*
|
|
* Prunes XHProf raw data:
|
|
*
|
|
* Any node whose inclusive walltime accounts for less than $prune_percent
|
|
* of total walltime is pruned. [It is possible that a child function isn't
|
|
* pruned, but one or more of its parents get pruned. In such cases, when
|
|
* viewing the child function's hierarchical information, the cost due to
|
|
* the pruned parent(s) will be attributed to a special function/symbol
|
|
* "__pruned__()".]
|
|
*
|
|
* @param array $raw_data XHProf raw data to be pruned & validated.
|
|
* @param double $prune_percent Any edges that account for less than
|
|
* $prune_percent of time will be pruned
|
|
* from the raw data.
|
|
*
|
|
* @return array Returns the pruned raw data.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_prune_run($raw_data, $prune_percent) {
|
|
|
|
$main_info = $raw_data["main()"];
|
|
if (empty($main_info)) {
|
|
xhprof_error("XHProf: main() missing in raw data");
|
|
return false;
|
|
}
|
|
|
|
// raw data should contain either wall time or samples information...
|
|
if (isset($main_info["wt"])) {
|
|
$prune_metric = "wt";
|
|
} else if (isset($main_info["samples"])) {
|
|
$prune_metric = "samples";
|
|
} else {
|
|
xhprof_error("XHProf: for main() we must have either wt "
|
|
."or samples attribute set");
|
|
return false;
|
|
}
|
|
|
|
// determine the metrics present in the raw data..
|
|
$metrics = array();
|
|
foreach ($main_info as $metric => $val) {
|
|
if (isset($val)) {
|
|
$metrics[] = $metric;
|
|
}
|
|
}
|
|
|
|
$prune_threshold = (($main_info[$prune_metric] * $prune_percent) / 100.0);
|
|
|
|
// init_metrics($raw_data, null, null, false);
|
|
$flat_info = xhprof_compute_inclusive_times($raw_data);
|
|
|
|
foreach ($raw_data as $parent_child => $info) {
|
|
|
|
list($parent, $child) = xhprof_parse_parent_child($parent_child);
|
|
|
|
// is this child's overall total from all parents less than threshold?
|
|
if ($flat_info[$child][$prune_metric] < $prune_threshold) {
|
|
unset($raw_data[$parent_child]); // prune the edge
|
|
} else if ($parent &&
|
|
($parent != "__pruned__()") &&
|
|
($flat_info[$parent][$prune_metric] < $prune_threshold)) {
|
|
|
|
// Parent's overall inclusive metric is less than a threshold.
|
|
// All edges to the parent node will get nuked, and this child will
|
|
// be a dangling child.
|
|
// So instead change its parent to be a special function __pruned__().
|
|
$pruned_edge = xhprof_build_parent_child_key("__pruned__()", $child);
|
|
|
|
if (isset($raw_data[$pruned_edge])) {
|
|
foreach ($metrics as $metric) {
|
|
$raw_data[$pruned_edge][$metric]+=$raw_data[$parent_child][$metric];
|
|
}
|
|
} else {
|
|
$raw_data[$pruned_edge] = $raw_data[$parent_child];
|
|
}
|
|
|
|
unset($raw_data[$parent_child]); // prune the edge
|
|
}
|
|
}
|
|
|
|
return $raw_data;
|
|
}
|
|
|
|
|
|
/**
|
|
* Set one key in an array and return the array
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_array_set($arr, $k, $v) {
|
|
$arr[$k] = $v;
|
|
return $arr;
|
|
}
|
|
|
|
/**
|
|
* Removes/unsets one key in an array and return the array
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_array_unset($arr, $k) {
|
|
unset($arr[$k]);
|
|
return $arr;
|
|
}
|
|
|
|
/**
|
|
* Type definitions for URL params
|
|
*/
|
|
define('XHPROF_STRING_PARAM', 1);
|
|
define('XHPROF_UINT_PARAM', 2);
|
|
define('XHPROF_FLOAT_PARAM', 3);
|
|
define('XHPROF_BOOL_PARAM', 4);
|
|
|
|
|
|
/**
|
|
* Internal helper function used by various
|
|
* xhprof_get_param* flavors for various
|
|
* types of parameters.
|
|
*
|
|
* @param string name of the URL query string param
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_param_helper($param) {
|
|
$val = null;
|
|
if (isset($_GET[$param]))
|
|
$val = $_GET[$param];
|
|
else if (isset($_POST[$param])) {
|
|
$val = $_POST[$param];
|
|
}
|
|
return $val;
|
|
}
|
|
|
|
/**
|
|
* Extracts value for string param $param from query
|
|
* string. If param is not specified, return the
|
|
* $default value.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_string_param($param, $default = '') {
|
|
$val = xhprof_get_param_helper($param);
|
|
|
|
if ($val === null)
|
|
return $default;
|
|
|
|
return $val;
|
|
}
|
|
|
|
/**
|
|
* Extracts value for unsigned integer param $param from
|
|
* query string. If param is not specified, return the
|
|
* $default value.
|
|
*
|
|
* If value is not a valid unsigned integer, logs error
|
|
* and returns null.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_uint_param($param, $default = 0) {
|
|
$val = xhprof_get_param_helper($param);
|
|
|
|
if ($val === null)
|
|
$val = $default;
|
|
|
|
// trim leading/trailing whitespace
|
|
$val = trim($val);
|
|
|
|
// if it only contains digits, then ok..
|
|
if (ctype_digit($val)) {
|
|
return $val;
|
|
}
|
|
|
|
xhprof_error("$param is $val. It must be an unsigned integer.");
|
|
return null;
|
|
}
|
|
|
|
|
|
/**
|
|
* Extracts value for a float param $param from
|
|
* query string. If param is not specified, return
|
|
* the $default value.
|
|
*
|
|
* If value is not a valid unsigned integer, logs error
|
|
* and returns null.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_float_param($param, $default = 0) {
|
|
$val = xhprof_get_param_helper($param);
|
|
|
|
if ($val === null)
|
|
$val = $default;
|
|
|
|
// trim leading/trailing whitespace
|
|
$val = trim($val);
|
|
|
|
// TBD: confirm the value is indeed a float.
|
|
if (true) // for now..
|
|
return (float)$val;
|
|
|
|
xhprof_error("$param is $val. It must be a float.");
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Extracts value for a boolean param $param from
|
|
* query string. If param is not specified, return
|
|
* the $default value.
|
|
*
|
|
* If value is not a valid unsigned integer, logs error
|
|
* and returns null.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_bool_param($param, $default = false) {
|
|
$val = xhprof_get_param_helper($param);
|
|
|
|
if ($val === null)
|
|
$val = $default;
|
|
|
|
// trim leading/trailing whitespace
|
|
$val = trim($val);
|
|
|
|
switch (strtolower($val)) {
|
|
case '0':
|
|
case '1':
|
|
$val = (bool)$val;
|
|
break;
|
|
case 'true':
|
|
case 'on':
|
|
case 'yes':
|
|
$val = true;
|
|
break;
|
|
case 'false':
|
|
case 'off':
|
|
case 'no':
|
|
$val = false;
|
|
break;
|
|
default:
|
|
xhprof_error("$param is $val. It must be a valid boolean string.");
|
|
return null;
|
|
}
|
|
|
|
return $val;
|
|
|
|
}
|
|
|
|
/**
|
|
* Initialize params from URL query string. The function
|
|
* creates globals variables for each of the params
|
|
* and if the URL query string doesn't specify a particular
|
|
* param initializes them with the corresponding default
|
|
* value specified in the input.
|
|
*
|
|
* @params array $params An array whose keys are the names
|
|
* of URL params who value needs to
|
|
* be retrieved from the URL query
|
|
* string. PHP globals are created
|
|
* with these names. The value is
|
|
* itself an array with 2-elems (the
|
|
* param type, and its default value).
|
|
* If a param is not specified in the
|
|
* query string the default value is
|
|
* used.
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_param_init($params) {
|
|
/* Create variables specified in $params keys, init defaults */
|
|
foreach ($params as $k => $v) {
|
|
switch ($v[0]) {
|
|
case XHPROF_STRING_PARAM:
|
|
$p = xhprof_get_string_param($k, $v[1]);
|
|
break;
|
|
case XHPROF_UINT_PARAM:
|
|
$p = xhprof_get_uint_param($k, $v[1]);
|
|
break;
|
|
case XHPROF_FLOAT_PARAM:
|
|
$p = xhprof_get_float_param($k, $v[1]);
|
|
break;
|
|
case XHPROF_BOOL_PARAM:
|
|
$p = xhprof_get_bool_param($k, $v[1]);
|
|
break;
|
|
default:
|
|
xhprof_error("Invalid param type passed to xhprof_param_init: "
|
|
. $v[0]);
|
|
exit();
|
|
}
|
|
|
|
// create a global variable using the parameter name.
|
|
$GLOBALS[$k] = $p;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Given a partial query string $q return matching function names in
|
|
* specified XHProf run. This is used for the type ahead function
|
|
* selector.
|
|
*
|
|
* @author Kannan
|
|
*/
|
|
function xhprof_get_matching_functions($q, $xhprof_data) {
|
|
|
|
$matches = array();
|
|
|
|
foreach ($xhprof_data as $parent_child => $info) {
|
|
list($parent, $child) = xhprof_parse_parent_child($parent_child);
|
|
if (stripos($parent, $q) !== false) {
|
|
$matches[$parent] = 1;
|
|
}
|
|
if (stripos($child, $q) !== false) {
|
|
$matches[$child] = 1;
|
|
}
|
|
}
|
|
|
|
$res = array_keys($matches);
|
|
|
|
// sort it so the answers are in some reliable order...
|
|
asort($res);
|
|
|
|
return ($res);
|
|
}
|
|
|