зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.8 KiB
C++
115 строки
3.8 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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#ifndef mozilla_dom_quota_filestreams_h__
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#define mozilla_dom_quota_filestreams_h__
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#include "QuotaCommon.h"
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#include "nsFileStreams.h"
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#include "PersistenceType.h"
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#include "QuotaObject.h"
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BEGIN_QUOTA_NAMESPACE
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template <class FileStreamBase>
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class FileQuotaStream : public FileStreamBase {
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public:
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// nsFileStreamBase override
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NS_IMETHOD
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SetEOF() override;
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NS_IMETHOD
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Close() override;
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protected:
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FileQuotaStream(PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin)
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: mPersistenceType(aPersistenceType), mGroup(aGroup), mOrigin(aOrigin) {}
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// nsFileStreamBase override
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virtual nsresult DoOpen() override;
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PersistenceType mPersistenceType;
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nsCString mGroup;
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nsCString mOrigin;
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RefPtr<QuotaObject> mQuotaObject;
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};
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template <class FileStreamBase>
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class FileQuotaStreamWithWrite : public FileQuotaStream<FileStreamBase> {
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public:
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// nsFileStreamBase override
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NS_IMETHOD
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Write(const char* aBuf, uint32_t aCount, uint32_t* _retval) override;
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protected:
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FileQuotaStreamWithWrite(PersistenceType aPersistenceType,
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const nsACString& aGroup, const nsACString& aOrigin)
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: FileQuotaStream<FileStreamBase>(aPersistenceType, aGroup, aOrigin) {}
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};
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class FileInputStream : public FileQuotaStream<nsFileInputStream> {
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public:
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NS_INLINE_DECL_REFCOUNTING_INHERITED(FileInputStream,
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FileQuotaStream<nsFileInputStream>)
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FileInputStream(PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin)
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: FileQuotaStream<nsFileInputStream>(aPersistenceType, aGroup, aOrigin) {}
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private:
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virtual ~FileInputStream() { Close(); }
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};
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class FileOutputStream : public FileQuotaStreamWithWrite<nsFileOutputStream> {
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public:
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NS_INLINE_DECL_REFCOUNTING_INHERITED(
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FileOutputStream, FileQuotaStreamWithWrite<nsFileOutputStream>);
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FileOutputStream(PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin)
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: FileQuotaStreamWithWrite<nsFileOutputStream>(aPersistenceType, aGroup,
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aOrigin) {}
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private:
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virtual ~FileOutputStream() { Close(); }
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};
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class FileStream : public FileQuotaStreamWithWrite<nsFileStream> {
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public:
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NS_INLINE_DECL_REFCOUNTING_INHERITED(FileStream,
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FileQuotaStreamWithWrite<nsFileStream>)
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FileStream(PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin)
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: FileQuotaStreamWithWrite<nsFileStream>(aPersistenceType, aGroup,
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aOrigin) {}
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private:
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virtual ~FileStream() { Close(); }
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};
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already_AddRefed<FileInputStream> CreateFileInputStream(
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PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin, nsIFile* aFile, int32_t aIOFlags = -1,
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int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
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already_AddRefed<FileOutputStream> CreateFileOutputStream(
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PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin, nsIFile* aFile, int32_t aIOFlags = -1,
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int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
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already_AddRefed<FileStream> CreateFileStream(
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PersistenceType aPersistenceType, const nsACString& aGroup,
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const nsACString& aOrigin, nsIFile* aFile, int32_t aIOFlags = -1,
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int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
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END_QUOTA_NAMESPACE
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#endif /* mozilla_dom_quota_filestreams_h__ */
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