зеркало из https://github.com/mozilla/pjs.git
75 строки
2.6 KiB
C++
75 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* 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 nsIByteBuffer_h___
|
|
#define nsIByteBuffer_h___
|
|
|
|
#include "nscore.h"
|
|
#include "nsISupports.h"
|
|
|
|
class nsIInputStream;
|
|
|
|
#define NS_IBYTE_BUFFER_IID \
|
|
{ 0xe4a6e4b0, 0x93b4, 0x11d1, \
|
|
{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
|
|
#define NS_IBYTEBUFFER_IID \
|
|
{ 0xe4a6e4b0, 0x93b4, 0x11d1, \
|
|
{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
|
|
#define NS_BYTEBUFFER_PROGID "component://netscape/byte-buffer"
|
|
#define NS_BYTEBUFFER_CLASSNAME "Byte Buffer"
|
|
|
|
/** Interface to a buffer that holds bytes */
|
|
class nsIByteBuffer : public nsISupports {
|
|
public:
|
|
NS_IMETHOD Init(PRUint32 aBufferSize) = 0;
|
|
|
|
/** @return length of buffer, i.e. how many bytes are currently in it. */
|
|
NS_IMETHOD_(PRUint32) GetLength(void) const = 0;
|
|
|
|
/** @return number of bytes allocated in the buffer */
|
|
NS_IMETHOD_(PRUint32) GetBufferSize(void) const = 0;
|
|
|
|
/** @return the buffer */
|
|
NS_IMETHOD_(char*) GetBuffer(void) const = 0;
|
|
|
|
/** Grow buffer to aNewSize bytes. */
|
|
NS_IMETHOD_(PRBool) Grow(PRUint32 aNewSize) = 0;
|
|
|
|
/** Fill the buffer with data from aStream. Don't grow the buffer, only
|
|
* read until length of buffer equals buffer size. */
|
|
NS_IMETHOD_(PRInt32) Fill(nsresult* aErrorCode, nsIInputStream* aStream,
|
|
PRUint32 aKeep) = 0;
|
|
};
|
|
|
|
#define NS_BYTEBUFFER_CID \
|
|
{ /* a49d5280-0d6b-11d3-9331-00104ba0fd40 */ \
|
|
0xa49d5280, \
|
|
0x0d6b, \
|
|
0x11d3, \
|
|
{0x93, 0x31, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
|
|
}
|
|
|
|
/** Create a new byte buffer using the given buffer size. */
|
|
extern NS_COM nsresult
|
|
NS_NewByteBuffer(nsIByteBuffer** aInstancePtrResult,
|
|
nsISupports* aOuter,
|
|
PRUint32 aBufferSize = 0);
|
|
|
|
#endif /* nsIByteBuffer_h___ */
|
|
|