00001 /* 00002 * Copyright (C) 2003 Apple Computer, Inc. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions 00006 * are met: 00007 * 1. Redistributions of source code must retain the above copyright 00008 * notice, this list of conditions and the following disclaimer. 00009 * 2. Redistributions in binary form must reproduce the above copyright 00010 * notice, this list of conditions and the following disclaimer in the 00011 * documentation and/or other materials provided with the distribution. 00012 * 00013 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 00014 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00015 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00016 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 00017 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00018 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00019 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00020 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 00021 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00022 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00023 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00024 */ 00025 00026 #ifndef DeprecatedPtrQueue_h 00027 #define DeprecatedPtrQueue_h 00028 00029 #include "DeprecatedPtrList.h" 00030 00031 namespace WebCore { 00032 00033 template<class T> class DeprecatedPtrQueue 00034 { 00035 public: 00036 bool isEmpty() const { return list.isEmpty(); } 00037 T *dequeue() { T *tmp = list.getFirst(); list.removeFirst(); return tmp; } 00038 void enqueue(const T *item) { list.append (item); } 00039 unsigned count() const { return list.count(); } 00040 T *head() const { return list.getFirst(); } 00041 DeprecatedPtrQueue<T> &operator=(const DeprecatedPtrQueue<T> &q) { list = q.list; return *this; } 00042 00043 private: 00044 DeprecatedPtrList<T> list; 00045 }; 00046 00047 } 00048 00049 #endif /* DeprecatedPtrQueue_h */