зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
3.2 KiB
C++
113 строки
3.2 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/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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MOZ_DIAGNOSTIC_ASSERT(aBodyDir);
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nsresult rv;
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#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
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nsCOMPtr<nsIFile> parentFile;
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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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#endif
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nsCOMPtr<nsIDirectoryEnumerator> entries;
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rv = aBodyDir->GetDirectoryEntries(getter_AddRefs(entries));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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bool isEmpty = true;
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nsCOMPtr<nsIFile> file;
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while (NS_SUCCEEDED(rv = entries->GetNextFile(getter_AddRefs(file))) &&
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file) {
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bool isDir = false;
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rv = file->IsDirectory(&isDir);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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// If it's a directory somehow, try to remove it and move on
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if (NS_WARN_IF(isDir)) {
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DebugOnly<nsresult> result =
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RemoveNsIFileRecursively(aQuotaInfo, file, /* aTrackQuota */ false);
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MOZ_ASSERT(NS_SUCCEEDED(result));
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continue;
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}
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nsAutoCString leafName;
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rv = file->GetNativeLeafName(leafName);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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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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continue;
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}
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} else if (NS_WARN_IF(!StringEndsWith(leafName, ".final"_ns))) {
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// Otherwise, it must be a .final file. If its not, then try to remove it
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// and move on
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DebugOnly<nsresult> result =
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RemoveNsIFile(aQuotaInfo, file, /* aTrackQuota */ false);
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MOZ_ASSERT(NS_SUCCEEDED(result));
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continue;
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}
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bool fileDeleted;
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rv = aHandleFileFunc(file, leafName, fileDeleted);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (fileDeleted) {
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continue;
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}
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isEmpty = false;
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}
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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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 rv;
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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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