зеркало из https://github.com/mozilla/gecko-dev.git
108 строки
3.7 KiB
C++
108 строки
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_cache_FileUtilsImpl_h
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#define mozilla_dom_cache_FileUtilsImpl_h
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#include "mozilla/dom/FlippedOnce.h"
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#include "mozilla/dom/cache/FileUtils.h"
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namespace mozilla {
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namespace dom {
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namespace cache {
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template <typename Func>
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nsresult BodyTraverseFiles(const QuotaInfo& aQuotaInfo, nsIFile& aBodyDir,
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const Func& aHandleFileFunc,
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const bool aCanRemoveFiles, const bool aTrackQuota) {
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#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
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{
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nsCOMPtr<nsIFile> parentFile;
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nsresult rv = aBodyDir.GetParent(getter_AddRefs(parentFile));
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MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
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MOZ_DIAGNOSTIC_ASSERT(parentFile);
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nsAutoCString nativeLeafName;
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rv = parentFile->GetNativeLeafName(nativeLeafName);
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MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
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MOZ_DIAGNOSTIC_ASSERT(StringEndsWith(nativeLeafName, "morgue"_ns));
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}
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#endif
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FlippedOnce<true> isEmpty;
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QM_TRY(quota::CollectEachFile(
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aBodyDir,
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[&isEmpty, &aQuotaInfo, aTrackQuota, &aHandleFileFunc,
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aCanRemoveFiles](const nsCOMPtr<nsIFile>& file) -> Result<Ok, nsresult> {
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QM_TRY_INSPECT(const auto& dirEntryKind, quota::GetDirEntryKind(*file));
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switch (dirEntryKind) {
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case quota::nsIFileKind::ExistsAsDirectory: {
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// If it's a directory somehow, try to remove it and move on
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DebugOnly<nsresult> result = RemoveNsIFileRecursively(
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aQuotaInfo, *file, /* aTrackQuota */ false);
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MOZ_ASSERT(NS_SUCCEEDED(result));
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break;
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}
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case quota::nsIFileKind::ExistsAsFile: {
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nsAutoCString leafName;
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QM_TRY(file->GetNativeLeafName(leafName));
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// Delete all tmp files regardless of known bodies. These are all
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// considered orphans.
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if (StringEndsWith(leafName, ".tmp"_ns)) {
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if (aCanRemoveFiles) {
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DebugOnly<nsresult> result =
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RemoveNsIFile(aQuotaInfo, *file, aTrackQuota);
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MOZ_ASSERT(NS_SUCCEEDED(result));
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return Ok{};
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}
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} else {
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QM_TRY(OkIf(StringEndsWith(leafName, ".final"_ns)), Ok{},
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([&aQuotaInfo, &file](const auto&) {
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// Otherwise, it must be a .final file. If its not,
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// then try to remove it and move on
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DebugOnly<nsresult> result = RemoveNsIFile(
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aQuotaInfo, *file, /* aTrackQuota */ false);
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MOZ_ASSERT(NS_SUCCEEDED(result));
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}));
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}
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QM_TRY_INSPECT(const bool& fileDeleted,
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aHandleFileFunc(*file, leafName));
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if (fileDeleted) {
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return Ok{};
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}
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isEmpty.EnsureFlipped();
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break;
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}
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case quota::nsIFileKind::DoesNotExist:
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// Ignore files that got removed externally while iterating.
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break;
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}
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return Ok{};
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}));
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if (isEmpty && aCanRemoveFiles) {
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DebugOnly<nsresult> result =
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RemoveNsIFileRecursively(aQuotaInfo, aBodyDir, /* aTrackQuota */ false);
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MOZ_ASSERT(NS_SUCCEEDED(result));
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}
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return NS_OK;
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}
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} // namespace cache
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_cache_FileUtilsImpl_h
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