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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DOM_INDEXEDDB_FILEINFOIMPL_H_
#define DOM_INDEXEDDB_FILEINFOIMPL_H_
#include "FileInfo.h"
#include "mozilla/Mutex.h"
#include "mozilla/dom/QMResult.h"
#include "mozilla/dom/quota/QuotaCommon.h"
#include "mozilla/dom/quota/ResultExtensions.h"
#include "nsIFile.h"
namespace mozilla::dom::indexedDB {
template <typename FileManager>
FileInfo<FileManager>::FileInfo(
const typename FileManager::FileInfoManagerGuard& aGuard,
SafeRefPtr<FileManager> aFileManager, const int64_t aFileId,
const nsrefcnt aInitialDBRefCnt)
: FileInfoBase{aFileId},
mDBRefCnt(aInitialDBRefCnt),
mFileManager(std::move(aFileManager)) {
MOZ_ASSERT(mFileManager);
}
template <typename FileManager>
void FileInfo<FileManager>::AddRef() {
AutoLockType lock(FileManager::Mutex());
LockedAddRef();
}
template <typename FileManager>
void FileInfo<FileManager>::Release(const bool aSyncDeleteFile) {
UpdateReferences(mRefCnt, -1, aSyncDeleteFile);
}
template <typename FileManager>
void FileInfo<FileManager>::UpdateDBRefs(int32_t aDelta) {
UpdateReferences(mDBRefCnt, aDelta);
}
template <typename FileManager>
void FileInfo<FileManager>::GetReferences(int32_t* const aRefCnt,
int32_t* const aDBRefCnt) {
AutoLockType lock(FileManager::Mutex());
if (aRefCnt) {
*aRefCnt = mRefCnt;
}
if (aDBRefCnt) {
*aDBRefCnt = mDBRefCnt;
}
}
template <typename FileManager>
FileManager& FileInfo<FileManager>::Manager() const {
return *mFileManager;
}
template <typename FileManager>
void FileInfo<FileManager>::UpdateReferences(ThreadSafeAutoRefCnt& aRefCount,
const int32_t aDelta,
const bool aSyncDeleteFile) {
bool needsCleanup;
{
AutoLockType lock(FileManager::Mutex());
aRefCount = aRefCount + aDelta;
if (mRefCnt + mDBRefCnt > 0) {
return;
}
mFileManager->RemoveFileInfo(Id(), lock);
// If the FileManager was already invalidated, we don't need to do any
// cleanup anymore. In that case, the entire origin directory has already
// been deleted by the quota manager, and we don't need to delete individual
// files.
needsCleanup = !mFileManager->Invalidated();
}
if (needsCleanup) {
if (aSyncDeleteFile) {
QM_WARNONLY_TRY(QM_TO_RESULT(mFileManager->SyncDeleteFile(Id())));
} else {
Cleanup();
}
}
delete this;
}
template <typename FileManager>
void FileInfo<FileManager>::LockedAddRef() {
FileManager::Mutex().AssertCurrentThreadOwns();
++mRefCnt;
}
template <typename FileManager>
bool FileInfo<FileManager>::LockedClearDBRefs(
const typename FileManager::FileInfoManagerGuard&) {
FileManager::Mutex().AssertCurrentThreadOwns();
mDBRefCnt = 0;
if (mRefCnt) {
return true;
}
// In this case, we are not responsible for removing the FileInfo from the
// hashtable. It's up to FileManager which is the only caller of this method.
MOZ_ASSERT(mFileManager->Invalidated());
delete this;
return false;
}
template <typename FileManager>
void FileInfo<FileManager>::Cleanup() {
QM_WARNONLY_TRY(QM_TO_RESULT(mFileManager->AsyncDeleteFile(Id())));
}
template <typename FileManager>
nsCOMPtr<nsIFile> FileInfo<FileManager>::GetFileForFileInfo() const {
const nsCOMPtr<nsIFile> directory = Manager().GetDirectory();
if (NS_WARN_IF(!directory)) {
return nullptr;
}
nsCOMPtr<nsIFile> file = FileManager::GetFileForId(directory, Id());
if (NS_WARN_IF(!file)) {
return nullptr;
}
return file;
}
} // namespace mozilla::dom::indexedDB
#endif // DOM_INDEXEDDB_FILEINFOIMPL_H_
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