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195 lines
4.5 KiB
C++
195 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 net_strm_h___
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#define net_strm_h___
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#include "nspr.h"
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#include "nsIURL.h"
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#include "nsIInputStream.h"
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#include "nsIOutputStream.h"
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#include "nsIStreamListener.h"
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/* Forward declaration... */
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class nsNetlibStream;
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class nsConnectionInfo : public nsISupports
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{
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public:
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NS_DECL_ISUPPORTS
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nsConnectionInfo(nsIURL *aURL,
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nsNetlibStream *aStream,
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nsIStreamListener *aNotify);
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protected:
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virtual ~nsConnectionInfo();
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public:
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nsIURL *pURL;
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nsNetlibStream *pNetStream;
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nsIStreamListener *pConsumer;
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};
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class nsNetlibStream : public nsIInputStream,
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public nsIOutputStream
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{
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public:
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NS_DECL_ISUPPORTS
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nsNetlibStream(void);
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virtual PRInt32 GetAvailableSpace(PRInt32 *aErrorCode) = 0;
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/* From nsIBaseStream interface */
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virtual void Close(void);
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protected:
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virtual ~nsNetlibStream();
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inline void LockStream (void) { if (m_Lock) PR_EnterMonitor(m_Lock); }
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inline void UnlockStream(void) { if (m_Lock) PR_ExitMonitor (m_Lock); }
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protected:
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PRBool m_bIsClosed;
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private:
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PRMonitor *m_Lock;
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};
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/*
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* Variable size, buffered stream...
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*/
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class nsBufferedStream : public nsNetlibStream {
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public:
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nsBufferedStream(void);
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virtual PRInt32 GetAvailableSpace(PRInt32 *aErrorCode);
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/* From nsIBaseStream interface */
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virtual PRInt32 GetLength(void);
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/* nsIInputStream interface */
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virtual PRInt32 Read(PRInt32 *aErrorCode,
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char *aBuf,
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PRInt32 aOffset,
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PRInt32 aCount);
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/* nsIOutputStream interface */
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virtual PRInt32 Write(PRInt32 *aErrorCode,
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const char *aBuf,
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PRInt32 aOffset,
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PRInt32 aLen);
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protected:
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virtual ~nsBufferedStream();
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private:
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char *m_Buffer;
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PRInt32 m_BufferLength;
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PRInt32 m_DataLength;
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PRInt32 m_ReadOffset;
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PRInt32 m_WriteOffset;
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};
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/*
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* Fixed size stream...
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*/
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class nsAsyncStream : public nsNetlibStream {
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public:
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nsAsyncStream(PRInt32 buffer_size);
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virtual PRInt32 GetAvailableSpace(PRInt32 *aErrorCode);
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/* From nsIBaseStream interface */
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virtual PRInt32 GetLength(void);
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/* nsIInputStream interface */
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virtual PRInt32 Read(PRInt32 *aErrorCode,
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char *aBuf,
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PRInt32 aOffset,
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PRInt32 aCount);
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/* nsIOutputStream interface */
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virtual PRInt32 Write(PRInt32 *aErrorCode,
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const char *aBuf,
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PRInt32 aOffset,
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PRInt32 aLen);
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protected:
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virtual ~nsAsyncStream();
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private:
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char *m_Buffer;
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PRInt32 m_BufferLength;
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PRInt32 m_DataLength;
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PRInt32 m_ReadOffset;
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PRInt32 m_WriteOffset;
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};
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/*
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* Fixed size, blocking stream...
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*/
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class nsBlockingStream : public nsNetlibStream {
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public:
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nsBlockingStream(void);
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virtual PRInt32 GetAvailableSpace(PRInt32 *aErrorCode);
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/* From nsIBaseStream interface */
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virtual PRInt32 GetLength(void);
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/* nsIInputStream interface */
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virtual PRInt32 Read(PRInt32 *aErrorCode,
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char *aBuf,
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PRInt32 aOffset,
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PRInt32 aCount);
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/* nsIOutputStream interface */
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virtual PRInt32 Write(PRInt32 *aErrorCode,
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const char *aBuf,
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PRInt32 aOffset,
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PRInt32 aLen);
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protected:
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virtual ~nsBlockingStream();
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PRInt32 ReadBuffer(char *aBuf, PRInt32 aCount);
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private:
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char *m_Buffer;
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PRInt32 m_BufferLength;
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PRInt32 m_DataLength;
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PRInt32 m_ReadOffset;
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PRInt32 m_WriteOffset;
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};
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#endif /* net_strm_h___ */
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