PHP profiling_is_running函数代码示例

    /**
     * The standard tags (typically performance information and validation links,
     * if we are in developer debug mode) that should be output in the footer area
     * of the page. Designed to be called in theme layout.php files.
     *
     * @return string HTML fragment.
     */
    public function standard_footer_html() {
        global $CFG, $SCRIPT;

        if (during_initial_install()) {
            // Debugging info can not work before install is finished,
            // in any case we do not want any links during installation!
            return '';
        }

        // This function is normally called from a layout.php file in {@link core_renderer::header()}
        // but some of the content won't be known until later, so we return a placeholder
        // for now. This will be replaced with the real content in {@link core_renderer::footer()}.
        $output = $this->unique_performance_info_token;
        if ($this->page->devicetypeinuse == 'legacy') {
            // The legacy theme is in use print the notification
            $output .= html_writer::tag('div', get_string('legacythemeinuse'), array('class'=>'legacythemeinuse'));
        }

        // Get links to switch device types (only shown for users not on a default device)
        $output .= $this->theme_switch_links();

        if (!empty($CFG->debugpageinfo)) {
            $output .= '<div class="performanceinfo pageinfo">This page is: ' . $this->page->debug_summary() . '</div>';
        }
        if (debugging(null, DEBUG_DEVELOPER) and has_capability('moodle/site:config', context_system::instance())) {  // Only in developer mode
            // Add link to profiling report if necessary
            if (function_exists('profiling_is_running') && profiling_is_running()) {
                $txt = get_string('profiledscript', 'admin');
                $title = get_string('profiledscriptview', 'admin');
                $url = $CFG->wwwroot . '/admin/tool/profiling/index.php?script=' . urlencode($SCRIPT);
                $link= '<a title="' . $title . '" href="' . $url . '">' . $txt . '</a>';
                $output .= '<div class="profilingfooter">' . $link . '</div>';
            }
            $purgeurl = new moodle_url('/admin/purgecaches.php', array('confirm' => 1,
                'sesskey' => sesskey(), 'returnurl' => $this->page->url->out_as_local_url(false)));
            $output .= '<div class="purgecaches">' .
                    html_writer::link($purgeurl, get_string('purgecaches', 'admin')) . '</div>';
        }
        if (!empty($CFG->debugvalidators)) {
            // NOTE: this is not a nice hack, $PAGE->url is not always accurate and $FULLME neither, it is not a bug if it fails. --skodak
            $output .= '<div class="validators"><ul>
              <li><a href="http://validator.w3.org/check?verbose=1&amp;ss=1&amp;uri=' . urlencode(qualified_me()) . '">Validate HTML</a></li>
              <li><a href="http://www.contentquality.com/mynewtester/cynthia.exe?rptmode=-1&amp;url1=' . urlencode(qualified_me()) . '">Section 508 Check</a></li>
              <li><a href="http://www.contentquality.com/mynewtester/cynthia.exe?rptmode=0&amp;warnp2n3e=1&amp;url1=' . urlencode(qualified_me()) . '">WCAG 1 (2,3) Check</a></li>
            </ul></div>';
        }
        return $output;
    }

 /**
  * The standard tags (typically performance information and validation links,
  * if we are in developer debug mode) that should be output in the footer area
  * of the page. Designed to be called in theme layout.php files.
  * @return string HTML fragment.
  */
 public function standard_footer_html()
 {
     global $CFG, $SCRIPT;
     // This function is normally called from a layout.php file in {@link header()}
     // but some of the content won't be known until later, so we return a placeholder
     // for now. This will be replaced with the real content in {@link footer()}.
     $output = self::PERFORMANCE_INFO_TOKEN;
     if ($this->page->legacythemeinuse) {
         // The legacy theme is in use print the notification
         $output .= html_writer::tag('div', get_string('legacythemeinuse'), array('class' => 'legacythemeinuse'));
     }
     if (!empty($CFG->debugpageinfo)) {
         $output .= '<div class="performanceinfo pageinfo">This page is: ' . $this->page->debug_summary() . '</div>';
     }
     if (debugging(null, DEBUG_DEVELOPER) and has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
         // Only in developer mode
         // Add link to profiling report if necessary
         if (function_exists('profiling_is_running') && profiling_is_running()) {
             $txt = get_string('profiledscript', 'admin');
             $title = get_string('profiledscriptview', 'admin');
             $url = $CFG->wwwroot . '/admin/report/profiling/index.php?script=' . urlencode($SCRIPT);
             $link = '<a title="' . $title . '" href="' . $url . '">' . $txt . '</a>';
             $output .= '<div class="profilingfooter">' . $link . '</div>';
         }
         $output .= '<div class="purgecaches"><a href="' . $CFG->wwwroot . '/admin/purgecaches.php?confirm=1&amp;sesskey=' . sesskey() . '">' . get_string('purgecaches', 'admin') . '</a></div>';
     }
     if (!empty($CFG->debugvalidators)) {
         $output .= '<div class="validators"><ul>
           <li><a href="http://validator.w3.org/check?verbose=1&amp;ss=1&amp;uri=' . urlencode(qualified_me()) . '">Validate HTML</a></li>
           <li><a href="http://www.contentquality.com/mynewtester/cynthia.exe?rptmode=-1&amp;url1=' . urlencode(qualified_me()) . '">Section 508 Check</a></li>
           <li><a href="http://www.contentquality.com/mynewtester/cynthia.exe?rptmode=0&amp;warnp2n3e=1&amp;url1=' . urlencode(qualified_me()) . '">WCAG 1 (2,3) Check</a></li>
         </ul></div>';
     }
     if (!empty($CFG->additionalhtmlfooter)) {
         $output .= "\n" . $CFG->additionalhtmlfooter;
     }
     return $output;
 }

 /**
  * @private - do NOT call directly.
  */
 public static function shutdown_handler()
 {
     global $DB;
     // Custom stuff first.
     foreach (self::$callbacks as $data) {
         list($callback, $params) = $data;
         try {
             if (!is_callable($callback)) {
                 error_log('Invalid custom shutdown function detected ' . var_export($callback, true));
                 continue;
             }
             if ($params === null) {
                 call_user_func($callback);
             } else {
                 call_user_func_array($callback, $params);
             }
         } catch (Exception $e) {
             error_log('Exception ignored in shutdown function ' . var_export($callback, true) . ':' . $e->getMessage());
         }
     }
     // Handle DB transactions, session need to be written afterwards
     // in order to maintain consistency in all session handlers.
     if ($DB->is_transaction_started()) {
         if (!defined('PHPUNIT_TEST') or !PHPUNIT_TEST) {
             // This should not happen, it usually indicates wrong catching of exceptions,
             // because all transactions should be finished manually or in default exception handler.
             $backtrace = $DB->get_transaction_start_backtrace();
             error_log('Potential coding error - active database transaction detected during request shutdown:' . "\n" . format_backtrace($backtrace, true));
         }
         $DB->force_transaction_rollback();
     }
     // Close sessions - do it here to make it consistent for all session handlers.
     \core\session\manager::write_close();
     // Other cleanup.
     self::request_shutdown();
     // Stop profiling.
     if (function_exists('profiling_is_running')) {
         if (profiling_is_running()) {
             profiling_stop();
         }
     }
     // NOTE: do not dispose $DB and MUC here, they might be used from legacy shutdown functions.
 }

/**
 * Stop profiling, gathering results and storing them
 */
function profiling_stop()
{
    global $CFG, $DB, $SCRIPT;
    // If profiling isn't available, nothing to stop
    if (!extension_loaded('xhprof') || !function_exists('xhprof_enable')) {
        return false;
    }
    // If profiling isn't enabled, nothing to stop
    if (empty($CFG->profilingenabled) && empty($CFG->earlyprofilingenabled)) {
        return false;
    }
    // If profiling is not running or is already saved, nothing to stop
    if (!profiling_is_running() || profiling_is_saved()) {
        return false;
    }
    // Set script (from global if available, else our own)
    $script = !empty($SCRIPT) ? $SCRIPT : profiling_get_script();
    // Arrived here, profiling is running, stop and save everything
    profiling_is_running(false);
    $data = xhprof_disable();
    // We only save the run after ensuring the DB table exists
    // (this prevents problems with profiling runs enabled in
    // config.php before Moodle is installed. Rare but...
    $tables = $DB->get_tables();
    if (!in_array('profiling', $tables)) {
        return false;
    }
    $run = new moodle_xhprofrun();
    $run->prepare_run($script);
    $runid = $run->save_run($data, null);
    profiling_is_saved(true);
    // Prune old runs
    profiling_prune_old_runs($runid);
    // Finished, return true
    return true;
}

/**
 * Stop profiling, gathering results and storing them
 */
function profiling_stop() {
    global $CFG, $SCRIPT;

    // If profiling isn't available, nothing to stop
    if (!extension_loaded('xhprof') || !function_exists('xhprof_enable')) {
        return false;
    }

    // If profiling isn't enabled, nothing to stop
    if (!$CFG->profilingenabled) {
        return false;
    }

    // If profiling is not running or is already saved, nothing to stop
    if (!profiling_is_running() || profiling_is_saved()) {
        return false;
    }

    // Arrived here, profiling is running, stop and save everything
    profiling_is_running(false);
    $data = xhprof_disable();

    $run = new moodle_xhprofrun();
    $run->prepare_run($SCRIPT);
    $runid = $run->save_run($data, null);
    profiling_is_saved(true);

    // Prune old runs
    profiling_prune_old_runs($runid);
}

 /**
  * The standard tags (typically performance information and validation links,
  * if we are in developer debug mode) that should be output in the footer area
  * of the page. Designed to be called in theme layout.php files.
  *
  * @return string HTML fragment.
  */
 public function standard_footer_html()
 {
     global $CFG, $SCRIPT;
     // This function is normally called from a layout.php file in {@link core_renderer::header()}
     // but some of the content will not be known until later, so we return a placeholder for now.
     // This will be replaced with the real content in {@link core_renderer::footer()}.
     $output = $this->unique_performance_info_token;
     if ($this->page->devicetypeinuse == 'legacy') {
         // The legacy theme is in use print the notification
         $output .= html_writer::tag('div', get_string('legacythemeinuse'), array('class' => 'legacythemeinuse'));
     }
     // Get links to switch device types (only shown for users not on a default device)
     $output .= $this->theme_switch_links();
     if (!empty($CFG->debugpageinfo)) {
         $icon = 'fa fa-cogs';
         $text = 'This page is ';
         $itag = html_writer::tag('i', '', array('class' => $icon));
         $output .= html_writer::tag('div', $itag . $text . $this->page->debug_summary(), array('class' => 'performanceinfo pageinfo well'));
     }
     if (debugging(null, DEBUG_DEVELOPER) and has_capability('moodle/site:config', context_system::instance())) {
         // Only in developer mode
         // Add link to profiling report if necessary
         if (function_exists('profiling_is_running') && profiling_is_running()) {
             $txt = get_string('profiledscript', 'admin');
             $title = get_string('profiledscriptview', 'admin');
             $url = $CFG->wwwroot . '/admin/tool/profiling/index.php?script=' . urlencode($SCRIPT);
             $link = html_writer::link($url, $txt, array('title' => $title));
             $output .= html_writer::tag('div', $link, array('class' => 'profilingfooter'));
         }
         $url = new moodle_url('/' . $CFG->admin . '/purgecaches.php?confirm=1&sesskey=' . sesskey());
         $purgecaches = get_string('purgecaches', 'admin');
         $output .= '<div class="btn btn-default">';
         $output .= '<a href=" ' . $url . ' "><i class="fa fa-trash"></i> ' . $purgecaches . ' </a>';
         $output .= '</div>';
     }
     if (!empty($CFG->debugvalidators)) {
         // NOTE: this is not a nice hack, $PAGE->url is not always accurate and $FULLME neither, it is not a bug if it fails. --skodak
         $output .= '<div class="validators"><ul>
           <li><a class="btn btn-small btn-default" href="http://validator.w3.org/check?verbose=1&amp;ss=1&amp;uri=' . urlencode(qualified_me()) . '"><i class="fa fa-cogs"></i>&nbsp;&nbsp;Validate HTML</a></li>
           <li><a class="btn btn-small btn-default" href="http://www.contentquality.com/mynewtester/cynthia.exe?rptmode=-1&amp;url1=' . urlencode(qualified_me()) . '"><i class="fa fa-cogs"></i>&nbsp;&nbsp;Section 508 Check</a></li>
           <li><a class="btn btn-small btn-default" href="http://www.contentquality.com/mynewtester/cynthia.exe?rptmode=0&amp;warnp2n3e=1&amp;url1=' . urlencode(qualified_me()) . '"><i class="fa fa-cogs"></i>&nbsp;&nbsp;WCAG 1 (2,3) Check</a></li>
         </ul><br /></div>';
     }
     if (!empty($CFG->additionalhtmlfooter)) {
         $output .= "\n" . $CFG->additionalhtmlfooter;
     }
     return $output;
 }