1/* 2Open Tracker License 3 4Terms and Conditions 5 6Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8Permission is hereby granted, free of charge, to any person obtaining a copy of 9this software and associated documentation files (the "Software"), to deal in 10the Software without restriction, including without limitation the rights to 11use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12of the Software, and to permit persons to whom the Software is furnished to do 13so, subject to the following conditions: 14 15The above copyright notice and this permission notice applies to all licensees 16and shall be included in all copies or substantial portions of the Software. 17 18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25Except as contained in this notice, the name of Be Incorporated shall not be 26used in advertising or otherwise to promote the sale, use or other dealings in 27this Software without prior written authorization from Be Incorporated. 28 29Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30of Be Incorporated in the United States and other countries. Other brand product 31names are registered trademarks or trademarks of their respective holders. 32All rights reserved. 33*/ 34 35 36#include "PendingNodeMonitorCache.h" 37#include "PoseView.h" 38 39 40const bigtime_t kDelayedNodeMonitorLifetime = 10000000; 41 // after this much the pending node monitor gets discarded as 42 // too old 43 44 45PendingNodeMonitorEntry::PendingNodeMonitorEntry(const node_ref* node, 46 const BMessage* nodeMonitor) 47 : 48 fExpiresAfter(system_time() + kDelayedNodeMonitorLifetime), 49 fNodeMonitor(*nodeMonitor), 50 fNode(*node) 51{ 52} 53 54 55const BMessage* 56PendingNodeMonitorEntry::NodeMonitor() const 57{ 58 return &fNodeMonitor; 59} 60 61 62bool 63PendingNodeMonitorEntry::Match(const node_ref* node) const 64{ 65 return fNode == *node; 66} 67 68 69bool 70PendingNodeMonitorEntry::TooOld(bigtime_t now) const 71{ 72 return now > fExpiresAfter; 73} 74 75 76PendingNodeMonitorCache::PendingNodeMonitorCache() 77 : 78 fList(10, true) 79{ 80} 81 82 83PendingNodeMonitorCache::~PendingNodeMonitorCache() 84{ 85} 86 87 88void 89PendingNodeMonitorCache::Add(const BMessage* message) 90{ 91#if xDEBUG 92 PRINT(("adding pending node monitor\n")); 93 message->PrintToStream(); 94#endif 95 node_ref node; 96 if (message->FindInt32("device", &node.device) != B_OK 97 || message->FindInt64("node", (int64*)&node.node) != B_OK) 98 return; 99 100 fList.AddItem(new PendingNodeMonitorEntry(&node, message)); 101} 102 103 104void 105PendingNodeMonitorCache::RemoveEntries(const node_ref* nodeRef) 106{ 107 int32 count = fList.CountItems(); 108 for (int32 index = count - 1; index >= 0; index--) 109 if (fList.ItemAt(index)->Match(nodeRef)) 110 delete fList.RemoveItemAt(index); 111} 112 113 114void 115PendingNodeMonitorCache::RemoveOldEntries() 116{ 117 bigtime_t now = system_time(); 118 int32 count = fList.CountItems(); 119 for (int32 index = count - 1; index >= 0; index--) 120 if (fList.ItemAt(index)->TooOld(now)) { 121 PRINT(("removing old entry from pending node monitor cache\n")); 122 delete fList.RemoveItemAt(index); 123 } 124} 125 126 127void 128PendingNodeMonitorCache::PoseCreatedOrMoved(BPoseView* poseView, 129 const BPose* pose) 130{ 131 bigtime_t now = system_time(); 132 for (int32 index = 0; index < fList.CountItems();) { 133 PendingNodeMonitorEntry* item = fList.ItemAt(index); 134 if (item->TooOld(now)) { 135 PRINT(("removing old entry from pending node monitor cache\n")); 136 delete fList.RemoveItemAt(index); 137 } else if (item->Match(pose->TargetModel()->NodeRef())) { 138 fList.RemoveItemAt(index); 139#if DEBUG 140 PRINT(("reapplying node monitor for model:\n")); 141 pose->TargetModel()->PrintToStream(); 142 item->NodeMonitor()->PrintToStream(); 143 bool result = 144#endif 145 poseView->FSNotification(item->NodeMonitor()); 146 ASSERT(result); 147 delete item; 148 } else 149 index++; 150 } 151} 152