/**
* Do a batch lookup from cache for file stats for all paths
* used in a list of storage paths or FileOp objects.
* This loads the persistent cache values into the process cache.
*
* @param array $items List of storage paths
*/
protected final function primeFileCache(array $items)
{
$ps = $this->scopedProfileSection(__METHOD__ . "-{$this->name}");
$paths = [];
// list of storage paths
$pathNames = [];
// (cache key => storage path)
// Get all the paths/containers from the items...
foreach ($items as $item) {
if (self::isStoragePath($item)) {
$paths[] = FileBackend::normalizeStoragePath($item);
}
}
// Get rid of any paths that failed normalization...
$paths = array_filter($paths, 'strlen');
// remove nulls
// Get all the corresponding cache keys for paths...
foreach ($paths as $path) {
list(, $rel, ) = $this->resolveStoragePath($path);
if ($rel !== null) {
// valid path for this backend
$pathNames[$this->fileCacheKey($path)] = $path;
}
}
// Get all cache entries for these file cache keys...
$values = $this->memCache->getMulti(array_keys($pathNames));
foreach ($values as $cacheKey => $val) {
$path = $pathNames[$cacheKey];
if (is_array($val)) {
$val['latest'] = false;
// never completely trust cache
$this->cheapCache->set($path, 'stat', $val);
if (isset($val['sha1'])) {
// some backends store SHA-1 as metadata
$this->cheapCache->set($path, 'sha1', ['hash' => $val['sha1'], 'latest' => false]);
}
if (isset($val['xattr'])) {
// some backends store headers/metadata
$val['xattr'] = self::normalizeXAttributes($val['xattr']);
$this->cheapCache->set($path, 'xattr', ['map' => $val['xattr'], 'latest' => false]);
}
}
}
}
/**
* @dataProvider provider_normalizeStoragePath
*/
public function testNormalizeStoragePath($path, $res)
{
$this->assertEquals($res, FileBackend::normalizeStoragePath($path), "FileBackend::normalizeStoragePath on path '{$path}'");
}
/**
* Normalize a string if it is a valid storage path
*
* @param $path string
* @return string
*/
protected static function normalizeIfValidStoragePath($path)
{
if (FileBackend::isStoragePath($path)) {
$res = FileBackend::normalizeStoragePath($path);
return $res !== null ? $res : $path;
}
return $path;
}
/**
* Do a batch lookup from cache for file stats for all paths
* used in a list of storage paths or FileOp objects.
* This loads the persistent cache values into the process cache.
*
* @param array $items List of storage paths or FileOps
* @return void
*/
protected final function primeFileCache(array $items)
{
wfProfileIn(__METHOD__);
wfProfileIn(__METHOD__ . '-' . $this->name);
$paths = array();
// list of storage paths
$pathNames = array();
// (cache key => storage path)
// Get all the paths/containers from the items...
foreach ($items as $item) {
if ($item instanceof FileOp) {
$paths = array_merge($paths, $item->storagePathsRead());
$paths = array_merge($paths, $item->storagePathsChanged());
} elseif (self::isStoragePath($item)) {
$paths[] = FileBackend::normalizeStoragePath($item);
}
}
// Get rid of any paths that failed normalization...
$paths = array_filter($paths, 'strlen');
// remove nulls
// Get all the corresponding cache keys for paths...
foreach ($paths as $path) {
list(, $rel, ) = $this->resolveStoragePath($path);
if ($rel !== null) {
// valid path for this backend
$pathNames[$this->fileCacheKey($path)] = $path;
}
}
// Get all cache entries for these container cache keys...
$values = $this->memCache->getMulti(array_keys($pathNames));
foreach ($values as $cacheKey => $val) {
if (is_array($val)) {
$path = $pathNames[$cacheKey];
$this->cheapCache->set($path, 'stat', $val);
if (isset($val['sha1'])) {
// some backends store SHA-1 as metadata
$this->cheapCache->set($path, 'sha1', array('hash' => $val['sha1'], 'latest' => $val['latest']));
}
}
}
wfProfileOut(__METHOD__ . '-' . $this->name);
wfProfileOut(__METHOD__);
}
