forked from mirrors/gecko-dev
127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=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 "FileStreams.h"
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// Local includes
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#include "QuotaCommon.h"
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#include "QuotaManager.h"
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#include "QuotaObject.h"
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// Global includes
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#include <utility>
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#include "mozilla/Assertions.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/Result.h"
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#include "nsDebug.h"
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#include "prio.h"
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namespace mozilla::dom::quota {
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template <class FileStreamBase>
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NS_IMETHODIMP FileQuotaStream<FileStreamBase>::SetEOF() {
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QM_TRY(FileStreamBase::SetEOF());
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if (mQuotaObject) {
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int64_t offset;
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QM_TRY(FileStreamBase::Tell(&offset));
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DebugOnly<bool> res =
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mQuotaObject->MaybeUpdateSize(offset, /* aTruncate */ true);
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MOZ_ASSERT(res);
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}
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return NS_OK;
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}
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template <class FileStreamBase>
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NS_IMETHODIMP FileQuotaStream<FileStreamBase>::Close() {
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QM_TRY(FileStreamBase::Close());
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mQuotaObject = nullptr;
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return NS_OK;
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}
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template <class FileStreamBase>
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nsresult FileQuotaStream<FileStreamBase>::DoOpen() {
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QuotaManager* quotaManager = QuotaManager::Get();
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NS_ASSERTION(quotaManager, "Shouldn't be null!");
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NS_ASSERTION(!mQuotaObject, "Creating quota object more than once?");
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mQuotaObject = quotaManager->GetQuotaObject(
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mPersistenceType, mOriginMetadata, mClientType,
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FileStreamBase::mOpenParams.localFile);
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QM_TRY(FileStreamBase::DoOpen());
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if (mQuotaObject && (FileStreamBase::mOpenParams.ioFlags & PR_TRUNCATE)) {
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DebugOnly<bool> res =
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mQuotaObject->MaybeUpdateSize(0, /* aTruncate */ true);
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MOZ_ASSERT(res);
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}
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return NS_OK;
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}
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template <class FileStreamBase>
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NS_IMETHODIMP FileQuotaStreamWithWrite<FileStreamBase>::Write(
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const char* aBuf, uint32_t aCount, uint32_t* _retval) {
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if (FileQuotaStreamWithWrite::mQuotaObject) {
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int64_t offset;
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QM_TRY(FileStreamBase::Tell(&offset));
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MOZ_ASSERT(INT64_MAX - offset >= int64_t(aCount));
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if (!FileQuotaStreamWithWrite::mQuotaObject->MaybeUpdateSize(
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offset + int64_t(aCount),
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/* aTruncate */ false)) {
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return NS_ERROR_FILE_NO_DEVICE_SPACE;
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}
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}
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QM_TRY(FileStreamBase::Write(aBuf, aCount, _retval));
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return NS_OK;
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}
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Result<NotNull<RefPtr<FileInputStream>>, nsresult> CreateFileInputStream(
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PersistenceType aPersistenceType, const OriginMetadata& aOriginMetadata,
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Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
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int32_t aBehaviorFlags) {
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const auto stream = MakeNotNull<RefPtr<FileInputStream>>(
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aPersistenceType, aOriginMetadata, aClientType);
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QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags));
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return stream;
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}
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Result<NotNull<RefPtr<FileOutputStream>>, nsresult> CreateFileOutputStream(
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PersistenceType aPersistenceType, const OriginMetadata& aOriginMetadata,
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Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
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int32_t aBehaviorFlags) {
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const auto stream = MakeNotNull<RefPtr<FileOutputStream>>(
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aPersistenceType, aOriginMetadata, aClientType);
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QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags));
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return stream;
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}
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Result<NotNull<RefPtr<FileStream>>, nsresult> CreateFileStream(
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PersistenceType aPersistenceType, const OriginMetadata& aOriginMetadata,
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Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
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int32_t aBehaviorFlags) {
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const auto stream = MakeNotNull<RefPtr<FileStream>>(
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aPersistenceType, aOriginMetadata, aClientType);
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QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags));
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return stream;
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}
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} // namespace mozilla::dom::quota
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