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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/. */
+
+#ifndef mozilla_dom_quota_filestreams_h__
+#define mozilla_dom_quota_filestreams_h__
+
+// Local includes
+#include "Client.h"
+
+// Global includes
+#include <cstdint>
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/quota/CommonMetadata.h"
+#include "mozilla/dom/quota/PersistenceType.h"
+#include "mozilla/dom/quota/QuotaObject.h"
+#include "nsFileStreams.h"
+#include "nsISupports.h"
+#include "nscore.h"
+
+class nsIFile;
+
+namespace mozilla {
+class Runnable;
+}
+
+namespace mozilla::dom::quota {
+
+class QuotaObject;
+
+template <class FileStreamBase>
+class FileQuotaStream : public FileStreamBase {
+ public:
+ // nsFileStreamBase override
+ NS_IMETHOD
+ SetEOF() override;
+
+ NS_IMETHOD
+ Close() override;
+
+ protected:
+ FileQuotaStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType)
+ : mPersistenceType(aPersistenceType),
+ mOriginMetadata(aOriginMetadata),
+ mClientType(aClientType),
+ mDeserialized(false) {}
+
+ FileQuotaStream()
+ : mPersistenceType(PERSISTENCE_TYPE_INVALID),
+ mClientType(Client::TYPE_MAX),
+ mDeserialized(true) {}
+
+ ~FileQuotaStream() { Close(); }
+
+ // nsFileStreamBase override
+ virtual nsresult DoOpen() override;
+
+ PersistenceType mPersistenceType;
+ OriginMetadata mOriginMetadata;
+ Client::Type mClientType;
+ RefPtr<QuotaObject> mQuotaObject;
+ const bool mDeserialized;
+};
+
+template <class FileStreamBase>
+class FileQuotaStreamWithWrite : public FileQuotaStream<FileStreamBase> {
+ public:
+ // nsFileStreamBase override
+ NS_IMETHOD
+ Write(const char* aBuf, uint32_t aCount, uint32_t* _retval) override;
+
+ protected:
+ FileQuotaStreamWithWrite(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType)
+ : FileQuotaStream<FileStreamBase>(aPersistenceType, aOriginMetadata,
+ aClientType) {}
+
+ FileQuotaStreamWithWrite() = default;
+};
+
+class FileInputStream : public FileQuotaStream<nsFileInputStream> {
+ public:
+ NS_INLINE_DECL_REFCOUNTING_INHERITED(FileInputStream,
+ FileQuotaStream<nsFileInputStream>)
+
+ FileInputStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType)
+ : FileQuotaStream<nsFileInputStream>(aPersistenceType, aOriginMetadata,
+ aClientType) {}
+
+ private:
+ virtual ~FileInputStream() { Close(); }
+};
+
+class FileOutputStream : public FileQuotaStreamWithWrite<nsFileOutputStream> {
+ public:
+ NS_INLINE_DECL_REFCOUNTING_INHERITED(
+ FileOutputStream, FileQuotaStreamWithWrite<nsFileOutputStream>);
+
+ FileOutputStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType)
+ : FileQuotaStreamWithWrite<nsFileOutputStream>(
+ aPersistenceType, aOriginMetadata, aClientType) {}
+
+ private:
+ virtual ~FileOutputStream() { Close(); }
+};
+
+// FileRandomAccessStream type is serializable, but only in a restricted
+// manner. The type is only safe to serialize in the parent process and only
+// when the type hasn't been previously deserialized. So the type can be
+// serialized in the parent process and desrialized in a child process or it
+// can be serialized in the parent process and deserialized in the parent
+// process as well (non-e10s mode). The same type can never be
+// serialized/deserialized more than once.
+class FileRandomAccessStream
+ : public FileQuotaStreamWithWrite<nsFileRandomAccessStream> {
+ public:
+ NS_INLINE_DECL_REFCOUNTING_INHERITED(
+ FileRandomAccessStream,
+ FileQuotaStreamWithWrite<nsFileRandomAccessStream>)
+
+ FileRandomAccessStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType)
+ : FileQuotaStreamWithWrite<nsFileRandomAccessStream>(
+ aPersistenceType, aOriginMetadata, aClientType) {}
+
+ FileRandomAccessStream() = default;
+
+ // nsFileRandomAccessStream override
+
+ // Serialize this FileRandomAccessStream. This method works only in the
+ // parent process and only with streams which haven't been previously
+ // deserialized.
+ mozilla::ipc::RandomAccessStreamParams Serialize(
+ nsIInterfaceRequestor* aCallbacks) override;
+
+ // Deserialize this FileRandomAccessStream. This method works in both the
+ // child and parent.
+ bool Deserialize(mozilla::ipc::RandomAccessStreamParams& aParams) override;
+
+ private:
+ virtual ~FileRandomAccessStream() { Close(); }
+};
+
+Result<MovingNotNull<nsCOMPtr<nsIInputStream>>, nsresult> CreateFileInputStream(
+ PersistenceType aPersistenceType, const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags = -1,
+ int32_t aPerm = -1, int32_t aBehaviorFlags = 0);
+
+Result<MovingNotNull<nsCOMPtr<nsIOutputStream>>, nsresult>
+CreateFileOutputStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType, nsIFile* aFile,
+ int32_t aIOFlags = -1, int32_t aPerm = -1,
+ int32_t aBehaviorFlags = 0);
+
+Result<MovingNotNull<nsCOMPtr<nsIRandomAccessStream>>, nsresult>
+CreateFileRandomAccessStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType, nsIFile* aFile,
+ int32_t aIOFlags = -1, int32_t aPerm = -1,
+ int32_t aBehaviorFlags = 0);
+
+} // namespace mozilla::dom::quota
+
+#endif /* mozilla_dom_quota_filestreams_h__ */