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Diffstat (limited to '')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/ds/nsIByteBuffer.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsIByteBuffer.h b/src/libs/xpcom18a4/xpcom/ds/nsIByteBuffer.h new file mode 100644 index 00000000..5d02c9cb --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/ds/nsIByteBuffer.h @@ -0,0 +1,95 @@ +/* -*- 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___ */ + |