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more efficient way to detect added and removed mounts 

Signed-off-by: Robin Appelman <robin@icewind.nl>
This commit is contained in:
Robin Appelman 2018-08-16 19:56:49 +02:00
parent 3155c1bd9a
commit c300516e51
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GPG Key ID: 42B69D8A64526EFB
1 changed files with 22 additions and 8 deletions
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30
lib/private/Files/Config/UserMountCache.php
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@ -101,17 +101,31 @@ class UserMountCache implements IUserMountCache {
}
}, $mounts);
$newMounts = array_values(array_filter($newMounts));
$newMountRootIds = array_map(function (ICachedMountInfo $mount) {
return $mount->getRootId();
}, $newMounts);
$newMounts = array_combine($newMountRootIds, $newMounts);
$cachedMounts = $this->getMountsForUser($user);
$mountDiff = function (ICachedMountInfo $mount1, ICachedMountInfo $mount2) {
// since we are only looking for mounts for a specific user comparing on root id is enough
return $mount1->getRootId() - $mount2->getRootId();
};
$cachedMountRootIds = array_map(function (ICachedMountInfo $mount) {
return $mount->getRootId();
}, $cachedMounts);
$cachedMounts = array_combine($cachedMountRootIds, $cachedMounts);
/** @var ICachedMountInfo[] $addedMounts */
$addedMounts = array_udiff($newMounts, $cachedMounts, $mountDiff);
/** @var ICachedMountInfo[] $removedMounts */
$removedMounts = array_udiff($cachedMounts, $newMounts, $mountDiff);
$addedMounts = [];
$removedMounts = [];
foreach ($newMounts as $rootId => $newMount) {
if (!isset($cachedMounts[$rootId])) {
$addedMounts[] = $newMount;
}
}
foreach ($cachedMounts as $rootId => $cachedMount) {
if (!isset($newMounts[$rootId])) {
$removedMounts[] = $cachedMount;
}
}
$changedMounts = $this->findChangedMounts($newMounts, $cachedMounts);