зеркало из https://github.com/mozilla/gecko-dev.git
128 строки
3.5 KiB
C++
128 строки
3.5 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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{
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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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{ }
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// nsFileStreamBase override
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virtual nsresult
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DoOpen() override;
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PersistenceType mPersistenceType;
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nsCString mGroup;
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nsCString mOrigin;
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nsRefPtr<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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{
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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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};
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class FileInputStream : public FileQuotaStream<nsFileInputStream>
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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static already_AddRefed<FileInputStream>
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Create(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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private:
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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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{ }
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virtual ~FileInputStream() {
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Close();
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}
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};
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class FileOutputStream : public FileQuotaStreamWithWrite<nsFileOutputStream>
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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static already_AddRefed<FileOutputStream>
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Create(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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private:
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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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{ }
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virtual ~FileOutputStream() {
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Close();
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}
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};
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class FileStream : public FileQuotaStreamWithWrite<nsFileStream>
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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static already_AddRefed<FileStream>
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Create(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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private:
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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, aOrigin)
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{ }
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virtual ~FileStream() {
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Close();
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}
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};
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END_QUOTA_NAMESPACE
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#endif /* mozilla_dom_quota_filestreams_h__ */
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