From 212c469ebfbbd2d38981eef123b75cb7e4159cc5 Mon Sep 17 00:00:00 2001 From: Nicolas Grekas Date: Sun, 22 Apr 2018 21:20:57 +0200 Subject: [PATCH] [Cache] TagAwareAdapterInterface::invalidateTags() should commit deferred items --- .../Cache/Adapter/TagAwareAdapter.php | 123 ++++++++++++------ .../Tests/Adapter/TagAwareAdapterTest.php | 16 +++ 2 files changed, 97 insertions(+), 42 deletions(-) diff --git a/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php b/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php index a71b903d734f6..67f9477ae3632 100644 --- a/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php +++ b/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php @@ -33,11 +33,14 @@ class TagAwareAdapter implements TagAwareAdapterInterface, PruneableInterface, R private $getTagsByKey; private $invalidateTags; private $tags; + private $knownTagVersions = array(); + private $knownTagVersionsTtl; - public function __construct(AdapterInterface $itemsPool, AdapterInterface $tagsPool = null) + public function __construct(AdapterInterface $itemsPool, AdapterInterface $tagsPool = null, $knownTagVersionsTtl = 0.15) { $this->pool = $itemsPool; $this->tags = $tagsPool ?: $itemsPool; + $this->knownTagVersionsTtl = $knownTagVersionsTtl; $this->createCacheItem = \Closure::bind( function ($key, $value, CacheItem $protoItem) { $item = new CacheItem(); @@ -87,8 +90,7 @@ function ($deferred) { ); $this->invalidateTags = \Closure::bind( function (AdapterInterface $tagsAdapter, array $tags) { - foreach ($tagsAdapter->getItems($tags) as $v) { - $v->set(1 + (int) $v->get()); + foreach ($tags as $v) { $v->defaultLifetime = 0; $v->expiry = null; $tagsAdapter->saveDeferred($v); @@ -106,14 +108,42 @@ function (AdapterInterface $tagsAdapter, array $tags) { */ public function invalidateTags(array $tags) { - foreach ($tags as $k => $tag) { - if ('' !== $tag && \is_string($tag)) { - $tags[$k] = $tag.static::TAGS_PREFIX; + $ok = true; + $tagsByKey = array(); + $invalidatedTags = array(); + foreach ($tags as $tag) { + CacheItem::validateKey($tag); + $invalidatedTags[$tag] = 0; + } + + if ($this->deferred) { + $items = $this->deferred; + foreach ($items as $key => $item) { + if (!$this->pool->saveDeferred($item)) { + unset($this->deferred[$key]); + $ok = false; + } } + + $f = $this->getTagsByKey; + $tagsByKey = $f($items); + $this->deferred = array(); + } + + $tagVersions = $this->getTagVersions($tagsByKey, $invalidatedTags); + $f = $this->createCacheItem; + + foreach ($tagsByKey as $key => $tags) { + $this->pool->saveDeferred($f(static::TAGS_PREFIX.$key, array_intersect_key($tagVersions, $tags), $items[$key])); + } + $ok = $this->pool->commit() && $ok; + + if ($invalidatedTags) { + $f = $this->invalidateTags; + $ok = $f($this->tags, $invalidatedTags) && $ok; } - $f = $this->invalidateTags; - return $f($this->tags, $tags); + return $ok; } /** @@ -132,7 +162,7 @@ public function hasItem($key) } foreach ($this->getTagVersions(array($itemTags)) as $tag => $version) { - if ($itemTags[$tag] !== $version) { + if ($itemTags[$tag] !== $version && 1 !== $itemTags[$tag] - $version) { return false; } } @@ -241,29 +271,7 @@ public function saveDeferred(CacheItemInterface $item) */ public function commit() { - $ok = true; - - if ($this->deferred) { - $items = $this->deferred; - foreach ($items as $key => $item) { - if (!$this->pool->saveDeferred($item)) { - unset($this->deferred[$key]); - $ok = false; - } - } - - $f = $this->getTagsByKey; - $tagsByKey = $f($items); - $this->deferred = array(); - $tagVersions = $this->getTagVersions($tagsByKey); - $f = $this->createCacheItem; - - foreach ($tagsByKey as $key => $tags) { - $this->pool->saveDeferred($f(static::TAGS_PREFIX.$key, array_intersect_key($tagVersions, $tags), $items[$key])); - } - } - - return $this->pool->commit() && $ok; + return $this->invalidateTags(array()); } public function __destruct() @@ -294,7 +302,7 @@ private function generateItems($items, array $tagKeys) foreach ($itemTags as $key => $tags) { foreach ($tags as $tag => $version) { - if ($tagVersions[$tag] !== $version) { + if ($tagVersions[$tag] !== $version && 1 !== $version - $tagVersions[$tag]) { unset($itemTags[$key]); continue 2; } @@ -310,23 +318,54 @@ private function generateItems($items, array $tagKeys) } } - private function getTagVersions(array $tagsByKey) + private function getTagVersions(array $tagsByKey, array &$invalidatedTags = array()) { - $tagVersions = array(); + $tagVersions = $invalidatedTags; foreach ($tagsByKey as $tags) { $tagVersions += $tags; } - if ($tagVersions) { - $tags = array(); - foreach ($tagVersions as $tag => $version) { - $tagVersions[$tag] = $tag.static::TAGS_PREFIX; - $tags[$tag.static::TAGS_PREFIX] = $tag; + if (!$tagVersions) { + return array(); + } + + if (!$fetchTagVersions = 1 !== \func_num_args()) { + foreach ($tagsByKey as $tags) { + foreach ($tags as $tag => $version) { + if ($tagVersions[$tag] > $version) { + $tagVersions[$tag] = $version; + } + } + } + } + + $now = microtime(true); + $tags = array(); + foreach ($tagVersions as $tag => $version) { + $tags[$tag.static::TAGS_PREFIX] = $tag; + if ($fetchTagVersions || !isset($this->knownTagVersions[$tag])) { + continue; + } + $version -= $this->knownTagVersions[$tag][1]; + if ((0 !== $version && 1 !== $version) || $this->knownTagVersionsTtl > $now - $this->knownTagVersions[$tag][0]) { + // reuse previously fetched tag versions up to the ttl, unless we are storing items or a potential miss arises + $fetchTagVersions = true; + } else { + $this->knownTagVersions[$tag][1] += $version; } - foreach ($this->tags->getItems($tagVersions) as $tag => $version) { - $tagVersions[$tags[$tag]] = $version->get() ?: 0; + } + + if (!$fetchTagVersions) { + return $tagVersions; + } + + foreach ($this->tags->getItems(array_keys($tags)) as $tag => $version) { + $tagVersions[$tag = $tags[$tag]] = $version->get() ?: 0; + if (isset($invalidatedTags[$tag])) { + $invalidatedTags[$tag] = $version->set(++$tagVersions[$tag]); } + $this->knownTagVersions[$tag] = array($now, $tagVersions[$tag]); } return $tagVersions; diff --git a/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php b/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php index 0e4e07a16d51b..094fa9558bfd5 100644 --- a/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php +++ b/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php @@ -71,6 +71,22 @@ public function testInvalidateTags() $this->assertTrue($pool->getItem('foo')->isHit()); } + public function testInvalidateCommits() + { + $pool1 = $this->createCachePool(); + + $foo = $pool1->getItem('foo'); + $foo->tag('tag'); + + $pool1->saveDeferred($foo->set('foo')); + $pool1->invalidateTags(array('tag')); + + $pool2 = $this->createCachePool(); + $foo = $pool2->getItem('foo'); + + $this->assertTrue($foo->isHit()); + } + public function testTagsAreCleanedOnSave() { $pool = $this->createCachePool(); pFad - Phonifier reborn

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