gecko-dev/xpcom/ds/nsIBuffer.h
1999-04-30 22:55:12 +00:00

84 lines
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsIBuffer_h___
#define nsIBuffer_h___
#include "nsISupports.h"
#include "nscore.h"
class nsIInputStream;
class nsIAllocator;
class nsIInputStream;
class nsIOutputStream;
#define NS_IBUFFER_IID \
{ /* 1eebb300-fb8b-11d2-9324-00104ba0fd40 */ \
0x1eebb300, \
0xfb8b, \
0x11d2, \
{0x93, 0x24, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
}
#define NS_BUFFER_CID \
{ /* 5dbe4de0-fbab-11d2-9324-00104ba0fd40 */ \
0x5dbe4de0, \
0xfbab, \
0x11d2, \
{0x93, 0x24, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
}
class nsIBuffer : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IBUFFER_IID);
NS_IMETHOD Init(PRUint32 growBySize, PRUint32 maxSize,
nsIAllocator* allocator) = 0;
NS_IMETHOD Read(char* toBuf, PRUint32 bufLen, PRUint32 *readCount) = 0;
NS_IMETHOD GetReadBuffer(PRUint32 *readBufferLength, char* *result) = 0;
NS_IMETHOD Write(const char* fromBuf, PRUint32 bufLen, PRUint32 *writeCount) = 0;
NS_IMETHOD Write(nsIInputStream* fromStream, PRUint32 *writeCount) = 0;
NS_IMETHOD GetWriteBuffer(PRUint32 *writeBufferLength, char* *result) = 0;
NS_IMETHOD SetEOF() = 0;
};
extern NS_BASE nsresult
NS_NewBuffer(nsIBuffer* *result,
PRUint32 growBySize, PRUint32 maxSize);
extern NS_BASE nsresult
NS_NewPageBuffer(nsIBuffer* *result,
PRUint32 growBySize, PRUint32 maxSize);
extern NS_BASE nsresult
NS_NewBufferInputStream(nsIInputStream* *result,
nsIBuffer* buffer, PRBool blocking = PR_FALSE);
extern NS_BASE nsresult
NS_NewBufferOutputStream(nsIOutputStream* *result,
nsIBuffer* buffer, PRBool blocking = PR_FALSE);
extern NS_BASE nsresult
NS_NewPipe2(nsIInputStream* *inStrResult,
nsIOutputStream* *outStrResult,
PRUint32 growBySize, PRUint32 maxSize);
#endif // nsIBuffer_h___