зеркало из https://github.com/mozilla/gecko-dev.git
157 строки
3.1 KiB
C++
157 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=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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#include "FileInfo.h"
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#include "nsThreadUtils.h"
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#include "mozilla/dom/quota/QuotaManager.h"
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USING_INDEXEDDB_NAMESPACE
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namespace {
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class CleanupFileRunnable MOZ_FINAL : public nsIRunnable
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{
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~CleanupFileRunnable() {}
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIRUNNABLE
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CleanupFileRunnable(FileManager* aFileManager, int64_t aFileId);
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private:
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nsRefPtr<FileManager> mFileManager;
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int64_t mFileId;
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};
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} // anonymous namespace
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// static
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FileInfo*
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FileInfo::Create(FileManager* aFileManager, int64_t aId)
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{
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MOZ_ASSERT(aId > 0, "Wrong id!");
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if (aId <= INT16_MAX) {
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return new FileInfo16(aFileManager, aId);
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}
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if (aId <= INT32_MAX) {
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return new FileInfo32(aFileManager, aId);
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}
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return new FileInfo64(aFileManager, aId);
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}
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void
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FileInfo::GetReferences(int32_t* aRefCnt, int32_t* aDBRefCnt,
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int32_t* aSliceRefCnt)
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{
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if (IndexedDatabaseManager::IsClosed()) {
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NS_ERROR("Shouldn't be called after shutdown!");
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if (aRefCnt) {
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*aRefCnt = -1;
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}
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if (aDBRefCnt) {
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*aDBRefCnt = -1;
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}
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if (aSliceRefCnt) {
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*aSliceRefCnt = -1;
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}
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return;
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}
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MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
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if (aRefCnt) {
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*aRefCnt = mRefCnt;
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}
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if (aDBRefCnt) {
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*aDBRefCnt = mDBRefCnt;
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}
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if (aSliceRefCnt) {
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*aSliceRefCnt = mSliceRefCnt;
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}
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}
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void
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FileInfo::UpdateReferences(mozilla::ThreadSafeAutoRefCnt& aRefCount,
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int32_t aDelta, bool aClear)
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{
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if (IndexedDatabaseManager::IsClosed()) {
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NS_ERROR("Shouldn't be called after shutdown!");
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return;
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}
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bool needsCleanup;
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{
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MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
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aRefCount = aClear ? 0 : aRefCount + aDelta;
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if (mRefCnt + mDBRefCnt + mSliceRefCnt > 0) {
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return;
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}
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mFileManager->mFileInfos.Remove(Id());
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needsCleanup = !mFileManager->Invalidated();
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}
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if (needsCleanup) {
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Cleanup();
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}
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delete this;
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}
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void
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FileInfo::Cleanup()
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{
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nsRefPtr<CleanupFileRunnable> cleaner =
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new CleanupFileRunnable(mFileManager, Id());
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// IndexedDatabaseManager is main-thread only.
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if (!NS_IsMainThread()) {
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NS_DispatchToMainThread(cleaner);
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return;
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}
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cleaner->Run();
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}
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CleanupFileRunnable::CleanupFileRunnable(FileManager* aFileManager,
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int64_t aFileId)
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: mFileManager(aFileManager), mFileId(aFileId)
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{
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}
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NS_IMPL_ISUPPORTS(CleanupFileRunnable,
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nsIRunnable)
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NS_IMETHODIMP
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CleanupFileRunnable::Run()
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{
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if (mozilla::dom::quota::QuotaManager::IsShuttingDown()) {
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return NS_OK;
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}
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nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
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MOZ_ASSERT(mgr);
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if (NS_FAILED(mgr->AsyncDeleteFile(mFileManager, mFileId))) {
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NS_WARNING("Failed to delete file asynchronously!");
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}
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return NS_OK;
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}
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