1 /* 2 Open Tracker License 3 4 Terms and Conditions 5 6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy of 9 this software and associated documentation files (the "Software"), to deal in 10 the Software without restriction, including without limitation the rights to 11 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12 of the Software, and to permit persons to whom the Software is furnished to do 13 so, subject to the following conditions: 14 15 The above copyright notice and this permission notice applies to all licensees 16 and shall be included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25 Except as contained in this notice, the name of Be Incorporated shall not be 26 used in advertising or otherwise to promote the sale, use or other dealings in 27 this Software without prior written authorization from Be Incorporated. 28 29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30 of Be Incorporated in the United States and other countries. Other brand product 31 names are registered trademarks or trademarks of their respective holders. 32 All rights reserved. 33 */ 34 35 36 #include "PendingNodeMonitorCache.h" 37 #include "PoseView.h" 38 39 40 const bigtime_t kDelayedNodeMonitorLifetime = 10000000; 41 // after this much the pending node monitor gets discarded as 42 // too old 43 44 45 PendingNodeMonitorEntry::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 55 const BMessage* 56 PendingNodeMonitorEntry::NodeMonitor() const 57 { 58 return &fNodeMonitor; 59 } 60 61 62 bool 63 PendingNodeMonitorEntry::Match(const node_ref* node) const 64 { 65 return fNode == *node; 66 } 67 68 69 bool 70 PendingNodeMonitorEntry::TooOld(bigtime_t now) const 71 { 72 return now > fExpiresAfter; 73 } 74 75 76 PendingNodeMonitorCache::PendingNodeMonitorCache() 77 : 78 fList(10, true) 79 { 80 } 81 82 83 PendingNodeMonitorCache::~PendingNodeMonitorCache() 84 { 85 } 86 87 88 void 89 PendingNodeMonitorCache::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 } 102 103 104 void 105 PendingNodeMonitorCache::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 } 112 113 114 void 115 PendingNodeMonitorCache::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 } 125 126 127 void 128 PendingNodeMonitorCache::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