gecko-dev/dom/file/FileStreamWrappers.h

95 строки
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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_file_filestreamwrappers_h__
#define mozilla_dom_file_filestreamwrappers_h__
#include "FileCommon.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
BEGIN_FILE_NAMESPACE
class FileHelper;
class FileStreamWrapper : public nsISupports
{
public:
NS_DECL_ISUPPORTS
FileStreamWrapper(nsISupports* aFileStream,
FileHelper* aFileHelper,
PRUint64 aOffset,
PRUint64 aLimit,
PRUint32 aFlags);
virtual ~FileStreamWrapper();
enum {
NOTIFY_PROGRESS = 1 << 0,
NOTIFY_CLOSE = 1 << 1,
NOTIFY_DESTROY = 1 << 2
};
protected:
nsCOMPtr<nsISupports> mFileStream;
nsRefPtr<FileHelper> mFileHelper;
PRUint64 mOffset;
PRUint64 mLimit;
PRUint32 mFlags;
bool mFirstTime;
};
class FileInputStreamWrapper : public FileStreamWrapper,
public nsIInputStream
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIINPUTSTREAM
FileInputStreamWrapper(nsISupports* aFileStream,
FileHelper* aFileHelper,
PRUint64 aOffset,
PRUint64 aLimit,
PRUint32 aFlags);
protected:
virtual ~FileInputStreamWrapper()
{ }
private:
nsCOMPtr<nsIInputStream> mInputStream;
};
class FileOutputStreamWrapper : public FileStreamWrapper,
public nsIOutputStream
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIOUTPUTSTREAM
FileOutputStreamWrapper(nsISupports* aFileStream,
FileHelper* aFileHelper,
PRUint64 aOffset,
PRUint64 aLimit,
PRUint32 aFlags);
protected:
virtual ~FileOutputStreamWrapper()
{ }
private:
nsCOMPtr<nsIOutputStream> mOutputStream;
#ifdef DEBUG
void* mWriteThread;
#endif
};
END_FILE_NAMESPACE
#endif // mozilla_dom_file_filestreamwrappers_h__