Dactyloidae/mailnews/base/util/nsMsgFileStream.h

33 lines
1,019 B
C++

/* 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/. */
#include "mozilla/Attributes.h"
#include "msgCore.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
#include "nsISeekableStream.h"
#include "prio.h"
class nsMsgFileStream final : public nsIInputStream,
public nsIOutputStream,
public nsISeekableStream
{
public:
nsMsgFileStream();
NS_DECL_ISUPPORTS
NS_IMETHOD Available(uint64_t *_retval) override;
NS_IMETHOD Read(char * aBuf, uint32_t aCount, uint32_t *_retval) override;
NS_IMETHOD ReadSegments(nsWriteSegmentFun aWriter, void * aClosure, uint32_t aCount, uint32_t *_retval) override;
NS_DECL_NSIOUTPUTSTREAM
NS_DECL_NSISEEKABLESTREAM
nsresult InitWithFile(nsIFile *localFile);
protected:
~nsMsgFileStream();
PRFileDesc *mFileDesc;
bool mSeekedToEnd;
};