зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
3.1 KiB
C++
88 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsBuffer_h___
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#define nsBuffer_h___
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#include "nsIBuffer.h"
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#include "nscore.h"
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#include "prclist.h"
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#include "nsIAllocator.h"
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class nsBuffer : public nsIBuffer {
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public:
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NS_DECL_ISUPPORTS
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static NS_METHOD
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Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
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// nsIBuffer methods:
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NS_IMETHOD Init(PRUint32 growBySize, PRUint32 maxSize,
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nsIBufferObserver* observer, nsIAllocator* allocator);
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NS_IMETHOD Read(char* toBuf, PRUint32 bufLen, PRUint32 *readCount);
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NS_IMETHOD ReadSegments(nsWriteSegmentFun writer, void* closure, PRUint32 count,
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PRUint32 *readCount);
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NS_IMETHOD GetReadSegment(PRUint32 segmentLogicalOffset,
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const char* *resultSegment,
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PRUint32 *resultSegmentLen);
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NS_IMETHOD GetReadableAmount(PRUint32 *amount);
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NS_IMETHOD Search(const char* forString, PRBool ignoreCase,
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PRBool *found, PRUint32 *offsetSearchedTo);
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NS_IMETHOD ReaderClosed(void);
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NS_IMETHOD GetCondition(nsresult *result);
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NS_IMETHOD Write(const char* fromBuf, PRUint32 bufLen, PRUint32 *writeCount);
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NS_IMETHOD WriteFrom(nsIInputStream* fromStream, PRUint32 count, PRUint32 *writeCount);
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NS_IMETHOD WriteSegments(nsReadSegmentFun reader, void* closure, PRUint32 count,
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PRUint32 *writeCount);
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NS_IMETHOD GetWriteSegment(char* *resultSegment,
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PRUint32 *resultSegmentLen);
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NS_IMETHOD GetWritableAmount(PRUint32 *amount);
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NS_IMETHOD GetReaderClosed(PRBool *result);
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NS_IMETHOD SetCondition(nsresult condition);
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// nsBuffer methods:
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nsBuffer();
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virtual ~nsBuffer();
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nsresult PushWriteSegment();
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nsresult PopReadSegment();
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protected:
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PRUint32 mGrowBySize;
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PRUint32 mMaxSize;
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nsIAllocator* mAllocator;
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nsIBufferObserver* mObserver;
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PRCList mSegments;
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PRUint32 mBufferSize;
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PRCList* mReadSegment;
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char* mReadSegmentEnd;
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char* mReadCursor;
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PRCList* mWriteSegment;
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char* mWriteSegmentEnd;
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char* mWriteCursor;
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PRBool mReaderClosed;
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nsresult mCondition;
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};
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#endif // nsBuffer_h___
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