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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/. */
#include "FileStreams.h"
// Local includes
#include "QuotaCommon.h"
#include "QuotaManager.h"
#include "QuotaObject.h"
// Global includes
#include <utility>
#include "mozilla/Assertions.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/Result.h"
#include "nsDebug.h"
#include "prio.h"
namespace mozilla::dom::quota {
template <class FileStreamBase>
NS_IMETHODIMP FileQuotaStream<FileStreamBase>::SetEOF() {
QM_TRY(FileStreamBase::SetEOF());
if (mQuotaObject) {
int64_t offset;
QM_TRY(FileStreamBase::Tell(&offset));
DebugOnly<bool> res =
mQuotaObject->MaybeUpdateSize(offset, /* aTruncate */ true);
MOZ_ASSERT(res);
}
return NS_OK;
}
template <class FileStreamBase>
NS_IMETHODIMP FileQuotaStream<FileStreamBase>::Close() {
QM_TRY(FileStreamBase::Close());
mQuotaObject = nullptr;
return NS_OK;
}
template <class FileStreamBase>
nsresult FileQuotaStream<FileStreamBase>::DoOpen() {
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "Shouldn't be null!");
NS_ASSERTION(!mQuotaObject, "Creating quota object more than once?");
mQuotaObject = quotaManager->GetQuotaObject(
mPersistenceType, mGroupAndOrigin, mClientType,
FileStreamBase::mOpenParams.localFile);
QM_TRY(FileStreamBase::DoOpen());
if (mQuotaObject && (FileStreamBase::mOpenParams.ioFlags & PR_TRUNCATE)) {
DebugOnly<bool> res =
mQuotaObject->MaybeUpdateSize(0, /* aTruncate */ true);
MOZ_ASSERT(res);
}
return NS_OK;
}
template <class FileStreamBase>
NS_IMETHODIMP FileQuotaStreamWithWrite<FileStreamBase>::Write(
const char* aBuf, uint32_t aCount, uint32_t* _retval) {
if (FileQuotaStreamWithWrite::mQuotaObject) {
int64_t offset;
QM_TRY(FileStreamBase::Tell(&offset));
MOZ_ASSERT(INT64_MAX - offset >= int64_t(aCount));
if (!FileQuotaStreamWithWrite::mQuotaObject->MaybeUpdateSize(
offset + int64_t(aCount),
/* aTruncate */ false)) {
return NS_ERROR_FILE_NO_DEVICE_SPACE;
}
}
QM_TRY(FileStreamBase::Write(aBuf, aCount, _retval));
return NS_OK;
}
already_AddRefed<FileInputStream> CreateFileInputStream(
PersistenceType aPersistenceType, const GroupAndOrigin& aGroupAndOrigin,
Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
int32_t aBehaviorFlags) {
RefPtr<FileInputStream> stream =
new FileInputStream(aPersistenceType, aGroupAndOrigin, aClientType);
QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags), nullptr);
return stream.forget();
}
already_AddRefed<FileOutputStream> CreateFileOutputStream(
PersistenceType aPersistenceType, const GroupAndOrigin& aGroupAndOrigin,
Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
int32_t aBehaviorFlags) {
RefPtr<FileOutputStream> stream =
new FileOutputStream(aPersistenceType, aGroupAndOrigin, aClientType);
QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags), nullptr);
return stream.forget();
}
already_AddRefed<FileStream> CreateFileStream(
PersistenceType aPersistenceType, const GroupAndOrigin& aGroupAndOrigin,
Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
int32_t aBehaviorFlags) {
RefPtr<FileStream> stream =
new FileStream(aPersistenceType, aGroupAndOrigin, aClientType);
QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags), nullptr);
return stream.forget();
}
} // namespace mozilla::dom::quota
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