bug #34896 [Cache] fix memory leak when using PhpFilesAdapter (nicolas-grekas)
This PR was merged into the 4.3 branch.
Discussion
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[Cache] fix memory leak when using PhpFilesAdapter
| Q | A
| ------------- | ---
| Branch? | 4.3
| Bug fix? | yes
| New feature? | no
| Deprecations? | no
| Tickets | Fix #34687
| License | MIT
| Doc PR | -
Similar to #34839 but for `PhpFilesAdapter`, as the "appendOnly" mode is a v4-only feature.
Commits
-------
0b46226648
[Cache] fix memory leak when using PhpFilesAdapter
This commit is contained in:
commit
5aff4a66f1
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@ -0,0 +1,31 @@
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Cache\Tests\Adapter;
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use Psr\Cache\CacheItemPoolInterface;
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use Symfony\Component\Cache\Adapter\PhpFilesAdapter;
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/**
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* @group time-sensitive
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*/
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class PhpFilesAdapterAppendOnlyTest extends PhpFilesAdapterTest
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{
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protected $skippedTests = [
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'testDefaultLifeTime' => 'PhpFilesAdapter does not allow configuring a default lifetime.',
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'testExpiration' => 'PhpFilesAdapter in append-only mode does not expiration.',
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];
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public function createCachePool(): CacheItemPoolInterface
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{
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return new PhpFilesAdapter('sf-cache', 0, null, true);
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}
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}
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@ -26,7 +26,7 @@ trait FilesystemCommonTrait
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private function init($namespace, $directory)
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{
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if (!isset($directory[0])) {
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$directory = sys_get_temp_dir().'/symfony-cache';
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$directory = sys_get_temp_dir().\DIRECTORY_SEPARATOR.'symfony-cache';
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} else {
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$directory = realpath($directory) ?: $directory;
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}
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@ -55,8 +55,8 @@ trait FilesystemCommonTrait
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{
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$ok = true;
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foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS)) as $file) {
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$ok = ($file->isDir() || $this->doUnlink($file) || !file_exists($file)) && $ok;
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foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::CURRENT_AS_PATHNAME), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
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$ok = ($this->doUnlink($file) || !file_exists($file)) && $ok;
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}
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return $ok;
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@ -35,12 +35,13 @@ trait PhpFilesTrait
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private $files = [];
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private static $startTime;
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private static $valuesCache = [];
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public static function isSupported()
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{
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self::$startTime = self::$startTime ?? $_SERVER['REQUEST_TIME'] ?? time();
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return \function_exists('opcache_invalidate') && ('cli' !== \PHP_SAPI || filter_var(ini_get('opcache.enable_cli'), FILTER_VALIDATE_BOOLEAN)) && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN);
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return \function_exists('opcache_invalidate') && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN) && (!\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) || filter_var(ini_get('opcache.enable_cli'), FILTER_VALIDATE_BOOLEAN));
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}
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/**
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@ -54,7 +55,7 @@ trait PhpFilesTrait
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set_error_handler($this->includeHandler);
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try {
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foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
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foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::CURRENT_AS_PATHNAME), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
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try {
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if (\is_array($expiresAt = include $file)) {
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$expiresAt = $expiresAt[0];
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@ -100,7 +101,6 @@ trait PhpFilesTrait
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} elseif (!\is_object($value)) {
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$values[$id] = $value;
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} elseif (!$value instanceof LazyValue) {
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// calling a Closure is for @deprecated BC and should be removed in Symfony 5.0
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$values[$id] = $value();
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} elseif (false === $values[$id] = include $value->file) {
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unset($values[$id], $this->values[$id]);
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@ -123,14 +123,20 @@ trait PhpFilesTrait
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try {
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$file = $this->files[$id] ?? $this->files[$id] = $this->getFile($id);
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if (\is_array($expiresAt = include $file)) {
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if (isset(self::$valuesCache[$file])) {
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[$expiresAt, $this->values[$id]] = self::$valuesCache[$file];
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} elseif (\is_array($expiresAt = include $file)) {
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if ($this->appendOnly) {
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self::$valuesCache[$file] = $expiresAt;
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}
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[$expiresAt, $this->values[$id]] = $expiresAt;
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} elseif ($now < $expiresAt) {
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$this->values[$id] = new LazyValue($file);
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}
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if ($now >= $expiresAt) {
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unset($this->values[$id], $missingIds[$k]);
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unset($this->values[$id], $missingIds[$k], self::$valuesCache[$file]);
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}
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} catch (\ErrorException $e) {
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unset($missingIds[$k]);
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@ -159,7 +165,13 @@ trait PhpFilesTrait
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$file = $this->files[$id] ?? $this->files[$id] = $this->getFile($id);
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$getExpiry = true;
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if (\is_array($expiresAt = include $file)) {
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if (isset(self::$valuesCache[$file])) {
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[$expiresAt, $value] = self::$valuesCache[$file];
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} elseif (\is_array($expiresAt = include $file)) {
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if ($this->appendOnly) {
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self::$valuesCache[$file] = $expiresAt;
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}
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[$expiresAt, $value] = $expiresAt;
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} elseif ($this->appendOnly) {
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$value = new LazyValue($file);
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@ -211,12 +223,14 @@ trait PhpFilesTrait
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$value = var_export($value, true);
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}
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if (!$isStaticValue) {
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if ($isStaticValue) {
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$value = "<?php return [{$expiry}, {$value}];\n";
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} elseif ($this->appendOnly) {
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$value = "<?php return [{$expiry}, static function () { return {$value}; }];\n";
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} else {
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// We cannot use a closure here because of https://bugs.php.net/76982
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$value = str_replace('\Symfony\Component\VarExporter\Internal\\', '', $value);
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$value = "<?php\n\nnamespace Symfony\Component\VarExporter\Internal;\n\nreturn \$getExpiry ? {$expiry} : {$value};\n";
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} else {
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$value = "<?php return [{$expiry}, {$value}];\n";
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}
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$file = $this->files[$key] = $this->getFile($key, true);
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@ -227,6 +241,7 @@ trait PhpFilesTrait
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@opcache_invalidate($file, true);
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@opcache_compile_file($file);
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}
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unset(self::$valuesCache[$file]);
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}
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if (!$ok && !is_writable($this->directory)) {
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@ -260,6 +275,8 @@ trait PhpFilesTrait
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protected function doUnlink($file)
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{
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unset(self::$valuesCache[$file]);
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if (self::isSupported()) {
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@opcache_invalidate($file, true);
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}
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