18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 20bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch * Copyright (C) 2007, 2009 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * its contributors may be used to endorse or promote products derived 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * from this software without specific prior written permission. 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark#ifndef WorkQueue_h 30563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark#define WorkQueue_h 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32563af33bc48281d19dce701398dbb88cb54fd7ecCary Clarkclass WorkQueueItem; 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34563af33bc48281d19dce701398dbb88cb54fd7ecCary Clarkclass WorkQueue { 35563af33bc48281d19dce701398dbb88cb54fd7ecCary Clarkpublic: 36563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark static WorkQueue* shared(); 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark void queue(WorkQueueItem*); 39563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark WorkQueueItem* dequeue(); 40563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark void clear(); 41563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark unsigned count(); 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark void setFrozen(bool b) { m_frozen = b; } 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 450bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch bool processWork(); // Returns true if all work is done, false if we started a load. 460bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 47563af33bc48281d19dce701398dbb88cb54fd7ecCary Clarkprivate: 48563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark WorkQueue(); 49563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark 50563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark bool m_frozen; 51563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark}; 52563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark 53563af33bc48281d19dce701398dbb88cb54fd7ecCary Clark#endif // !defined(WorkQueue_h) 54