1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/quota/FileStreams.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,127 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_quota_filestreams_h__
1.11 +#define mozilla_dom_quota_filestreams_h__
1.12 +
1.13 +#include "QuotaCommon.h"
1.14 +
1.15 +#include "nsFileStreams.h"
1.16 +
1.17 +#include "PersistenceType.h"
1.18 +#include "QuotaObject.h"
1.19 +
1.20 +BEGIN_QUOTA_NAMESPACE
1.21 +
1.22 +template <class FileStreamBase>
1.23 +class FileQuotaStream : public FileStreamBase
1.24 +{
1.25 +public:
1.26 + // nsFileStreamBase override
1.27 + NS_IMETHOD
1.28 + SetEOF() MOZ_OVERRIDE;
1.29 +
1.30 + NS_IMETHOD
1.31 + Close() MOZ_OVERRIDE;
1.32 +
1.33 +protected:
1.34 + FileQuotaStream(PersistenceType aPersistenceType, const nsACString& aGroup,
1.35 + const nsACString& aOrigin)
1.36 + : mPersistenceType(aPersistenceType), mGroup(aGroup), mOrigin(aOrigin)
1.37 + { }
1.38 +
1.39 + // nsFileStreamBase override
1.40 + virtual nsresult
1.41 + DoOpen() MOZ_OVERRIDE;
1.42 +
1.43 + PersistenceType mPersistenceType;
1.44 + nsCString mGroup;
1.45 + nsCString mOrigin;
1.46 + nsRefPtr<QuotaObject> mQuotaObject;
1.47 +};
1.48 +
1.49 +template <class FileStreamBase>
1.50 +class FileQuotaStreamWithWrite : public FileQuotaStream<FileStreamBase>
1.51 +{
1.52 +public:
1.53 + // nsFileStreamBase override
1.54 + NS_IMETHOD
1.55 + Write(const char* aBuf, uint32_t aCount, uint32_t* _retval) MOZ_OVERRIDE;
1.56 +
1.57 +protected:
1.58 + FileQuotaStreamWithWrite(PersistenceType aPersistenceType,
1.59 + const nsACString& aGroup, const nsACString& aOrigin)
1.60 + : FileQuotaStream<FileStreamBase>(aPersistenceType, aGroup, aOrigin)
1.61 + { }
1.62 +};
1.63 +
1.64 +class FileInputStream : public FileQuotaStream<nsFileInputStream>
1.65 +{
1.66 +public:
1.67 + NS_DECL_ISUPPORTS_INHERITED
1.68 +
1.69 + static already_AddRefed<FileInputStream>
1.70 + Create(PersistenceType aPersistenceType, const nsACString& aGroup,
1.71 + const nsACString& aOrigin, nsIFile* aFile, int32_t aIOFlags = -1,
1.72 + int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
1.73 +
1.74 +private:
1.75 + FileInputStream(PersistenceType aPersistenceType, const nsACString& aGroup,
1.76 + const nsACString& aOrigin)
1.77 + : FileQuotaStream<nsFileInputStream>(aPersistenceType, aGroup, aOrigin)
1.78 + { }
1.79 +
1.80 + virtual ~FileInputStream() {
1.81 + Close();
1.82 + }
1.83 +};
1.84 +
1.85 +class FileOutputStream : public FileQuotaStreamWithWrite<nsFileOutputStream>
1.86 +{
1.87 +public:
1.88 + NS_DECL_ISUPPORTS_INHERITED
1.89 +
1.90 + static already_AddRefed<FileOutputStream>
1.91 + Create(PersistenceType aPersistenceType, const nsACString& aGroup,
1.92 + const nsACString& aOrigin, nsIFile* aFile, int32_t aIOFlags = -1,
1.93 + int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
1.94 +
1.95 +private:
1.96 + FileOutputStream(PersistenceType aPersistenceType, const nsACString& aGroup,
1.97 + const nsACString& aOrigin)
1.98 + : FileQuotaStreamWithWrite<nsFileOutputStream>(aPersistenceType, aGroup,
1.99 + aOrigin)
1.100 + { }
1.101 +
1.102 + virtual ~FileOutputStream() {
1.103 + Close();
1.104 + }
1.105 +};
1.106 +
1.107 +class FileStream : public FileQuotaStreamWithWrite<nsFileStream>
1.108 +{
1.109 +public:
1.110 + NS_DECL_ISUPPORTS_INHERITED
1.111 +
1.112 + static already_AddRefed<FileStream>
1.113 + Create(PersistenceType aPersistenceType, const nsACString& aGroup,
1.114 + const nsACString& aOrigin, nsIFile* aFile, int32_t aIOFlags = -1,
1.115 + int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
1.116 +
1.117 +private:
1.118 + FileStream(PersistenceType aPersistenceType, const nsACString& aGroup,
1.119 + const nsACString& aOrigin)
1.120 + : FileQuotaStreamWithWrite<nsFileStream>(aPersistenceType, aGroup, aOrigin)
1.121 + { }
1.122 +
1.123 + virtual ~FileStream() {
1.124 + Close();
1.125 + }
1.126 +};
1.127 +
1.128 +END_QUOTA_NAMESPACE
1.129 +
1.130 +#endif /* mozilla_dom_quota_filestreams_h__ */
