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139 lines
3.6 KiB
C++
139 lines
3.6 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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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Indexed Database.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "IndexedDatabaseManager.h"
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#include "FileInfo.h"
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USING_INDEXEDDB_NAMESPACE
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// static
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FileInfo*
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FileInfo::Create(FileManager* aFileManager, PRInt64 aId)
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{
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NS_ASSERTION(aId > 0, "Wrong id!");
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if (aId <= PR_INT16_MAX) {
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return new FileInfo16(aFileManager, aId);
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}
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if (aId <= PR_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(PRInt32* aRefCnt, PRInt32* aDBRefCnt,
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PRInt32* 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(nsAutoRefCnt& aRefCount, PRInt32 aDelta,
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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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{
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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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}
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Cleanup();
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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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if (IndexedDatabaseManager::IsShuttingDown() ||
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mFileManager->Invalidated()) {
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return;
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}
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nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
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NS_ASSERTION(mgr, "Shouldn't be null!");
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if (NS_FAILED(mgr->AsyncDeleteFile(mFileManager, Id()))) {
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NS_WARNING("Failed to delete file asynchronously!");
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}
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}
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