gecko-dev/dom/indexedDB/FileInfo.cpp
Andrew Sutherland f9c6c42306 Bug 932162 - dispatch IndexedDB FileInfo releases to the main thread. r=khuey
Try runs:
Green run prior to b2g mochitest fix and assertion changes:
https://tbpl.mozilla.org/?tree=Try&rev=b071f8ef9617
green runs with assertion changes, not b2g disabling:
https://tbpl.mozilla.org/?tree=Try&rev=b071f8ef9617
green b2g run:
https://tbpl.mozilla.org/?tree=Try&rev=67510897d368
2013-11-19 06:00:20 -05:00

155 lines
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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/. */
#include "FileInfo.h"
#include "nsThreadUtils.h"
#include "mozilla/dom/quota/QuotaManager.h"
USING_INDEXEDDB_NAMESPACE
namespace {
class CleanupFileRunnable MOZ_FINAL : public nsIRunnable
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIRUNNABLE
CleanupFileRunnable(FileManager* aFileManager, int64_t aFileId);
private:
nsRefPtr<FileManager> mFileManager;
int64_t mFileId;
};
} // anonymous namespace
// static
FileInfo*
FileInfo::Create(FileManager* aFileManager, int64_t aId)
{
MOZ_ASSERT(aId > 0, "Wrong id!");
if (aId <= INT16_MAX) {
return new FileInfo16(aFileManager, aId);
}
if (aId <= INT32_MAX) {
return new FileInfo32(aFileManager, aId);
}
return new FileInfo64(aFileManager, aId);
}
void
FileInfo::GetReferences(int32_t* aRefCnt, int32_t* aDBRefCnt,
int32_t* aSliceRefCnt)
{
if (IndexedDatabaseManager::IsClosed()) {
NS_ERROR("Shouldn't be called after shutdown!");
if (aRefCnt) {
*aRefCnt = -1;
}
if (aDBRefCnt) {
*aDBRefCnt = -1;
}
if (aSliceRefCnt) {
*aSliceRefCnt = -1;
}
return;
}
MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
if (aRefCnt) {
*aRefCnt = mRefCnt;
}
if (aDBRefCnt) {
*aDBRefCnt = mDBRefCnt;
}
if (aSliceRefCnt) {
*aSliceRefCnt = mSliceRefCnt;
}
}
void
FileInfo::UpdateReferences(mozilla::ThreadSafeAutoRefCnt& aRefCount,
int32_t aDelta, bool aClear)
{
if (IndexedDatabaseManager::IsClosed()) {
NS_ERROR("Shouldn't be called after shutdown!");
return;
}
bool needsCleanup;
{
MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
aRefCount = aClear ? 0 : aRefCount + aDelta;
if (mRefCnt + mDBRefCnt + mSliceRefCnt > 0) {
return;
}
mFileManager->mFileInfos.Remove(Id());
needsCleanup = !mFileManager->Invalidated();
}
if (needsCleanup) {
Cleanup();
}
delete this;
}
void
FileInfo::Cleanup()
{
nsRefPtr<CleanupFileRunnable> cleaner =
new CleanupFileRunnable(mFileManager, Id());
// IndexedDatabaseManager is main-thread only.
if (!NS_IsMainThread()) {
NS_DispatchToMainThread(cleaner);
return;
}
cleaner->Run();
}
CleanupFileRunnable::CleanupFileRunnable(FileManager* aFileManager,
int64_t aFileId)
: mFileManager(aFileManager), mFileId(aFileId)
{
}
NS_IMPL_ISUPPORTS1(CleanupFileRunnable,
nsIRunnable)
NS_IMETHODIMP
CleanupFileRunnable::Run()
{
if (mozilla::dom::quota::QuotaManager::IsShuttingDown()) {
return NS_OK;
}
nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
MOZ_ASSERT(mgr);
if (NS_FAILED(mgr->AsyncDeleteFile(mFileManager, mFileId))) {
NS_WARNING("Failed to delete file asynchronously!");
}
return NS_OK;
}