From 16f504a9dca3fe3b70568f67b7d41241ae485288 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:49:04 +0200 Subject: Adding upstream version 7.0.6-dfsg. Signed-off-by: Daniel Baumann --- .../ipc/ipcd/util/public/ipcMessageReader.h | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 src/libs/xpcom18a4/ipc/ipcd/util/public/ipcMessageReader.h (limited to 'src/libs/xpcom18a4/ipc/ipcd/util/public/ipcMessageReader.h') diff --git a/src/libs/xpcom18a4/ipc/ipcd/util/public/ipcMessageReader.h b/src/libs/xpcom18a4/ipc/ipcd/util/public/ipcMessageReader.h new file mode 100644 index 00000000..f93bfa20 --- /dev/null +++ b/src/libs/xpcom18a4/ipc/ipcd/util/public/ipcMessageReader.h @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** 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 IPC. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Conrad Carlen + * + * Alternatively, the contents of this file may be used under the terms of + * either 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 ipcMessageReader_h__ +#define ipcMessageReader_h__ + +#include "prtypes.h" + +//***************************************************************************** +// ipcMessageReader +// +// Reads from a const buffer supplied to it. Does not take ownership of the +// buffer. Bytes are read in native endianess, as ipcMessageWriter writes them +// in native endianess. +//***************************************************************************** + +class ipcMessageReader +{ +public: + ipcMessageReader(const PRUint8* inBuffer, PRUint32 bufferSize) : + mBuf(inBuffer), mBufEnd(inBuffer + bufferSize), + mBufPtr(mBuf), + mError(PR_FALSE) + { } + + ~ipcMessageReader() + { } + + // Returns PR_TRUE if an error has occured at any point + // during the lifetime of this object. Any read operation + // will safely return 0 on an error condition. + PRBool HasError() + { return mError; } + + PRUint8 GetInt8(); + PRUint16 GetInt16(); + PRUint32 GetInt32(); + PRInt32 GetBytes(void* destBuffer, PRInt32 n); + + // Returns data at the current read position. + const PRUint8* GetPtr() + { return mBufPtr; } + + // Returns PR_TRUE if the new position is within the buffer. + // Returns PR_FALSE and sets error state if not. + PRBool AdvancePtr(PRInt32 n); + +private: + const PRUint8 *mBuf, *mBufEnd; + const PRUint8 *mBufPtr; + PRBool mError; +}; + +#endif // ipcMessageReader_h__ -- cgit v1.2.3