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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#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_CONTRACTID "@mozilla.org/byte-buffer;1"
#define NS_BYTEBUFFER_CLASSNAME "Byte Buffer"
/** Interface to a buffer that holds bytes */
class nsIByteBuffer : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IBYTEBUFFER_IID)
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___ */
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