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 #include "PendingNodeMonitorCache.h" 36 #include "PoseView.h" 37 38 const bigtime_t kDelayedNodeMonitorLifetime = 10000000; 39 // after this much the pending node monitor gets discarded as 40 // too old 41 42 PendingNodeMonitorEntry::PendingNodeMonitorEntry(const node_ref *node, 43 const BMessage *nodeMonitor) 44 : fExpiresAfter(system_time() + kDelayedNodeMonitorLifetime), 45 fNodeMonitor(*nodeMonitor), 46 fNode(*node) 47 { 48 } 49 50 const BMessage * 51 PendingNodeMonitorEntry::NodeMonitor() const 52 { 53 return &fNodeMonitor; 54 } 55 56 bool 57 PendingNodeMonitorEntry::Match(const node_ref *node) const 58 { 59 return fNode == *node; 60 } 61 62 bool 63 PendingNodeMonitorEntry::TooOld(bigtime_t now) const 64 { 65 return now > fExpiresAfter; 66 } 67 68 69 PendingNodeMonitorCache::PendingNodeMonitorCache() 70 : fList(10, true) 71 { 72 } 73 74 75 PendingNodeMonitorCache::~PendingNodeMonitorCache() 76 { 77 } 78 79 void 80 PendingNodeMonitorCache::Add(const BMessage *message) 81 { 82 #if xDEBUG 83 PRINT(("adding pending node monitor\n")); 84 message->PrintToStream(); 85 #endif 86 node_ref node; 87 if (message->FindInt32("device", &node.device) != B_OK 88 || message->FindInt64("node", (int64 *)&node.node) != B_OK) 89 return; 90 91 fList.AddItem(new PendingNodeMonitorEntry(&node, message)); 92 } 93 94 void 95 PendingNodeMonitorCache::RemoveEntries(const node_ref *nodeRef) 96 { 97 int32 count = fList.CountItems(); 98 for (int32 index = count - 1; index >= 0; index--) 99 if (fList.ItemAt(index)->Match(nodeRef)) 100 delete fList.RemoveItemAt(index); 101 } 102 103 void 104 PendingNodeMonitorCache::RemoveOldEntries() 105 { 106 bigtime_t now = system_time(); 107 int32 count = fList.CountItems(); 108 for (int32 index = count - 1; index >= 0; index--) 109 if (fList.ItemAt(index)->TooOld(now)) { 110 PRINT(("removing old entry from pending node monitor cache\n")); 111 delete fList.RemoveItemAt(index); 112 } 113 } 114 115 void 116 PendingNodeMonitorCache::PoseCreatedOrMoved(BPoseView *poseView, const BPose *pose) 117 { 118 bigtime_t now = system_time(); 119 for (int32 index = 0; index < fList.CountItems();) { 120 PendingNodeMonitorEntry *item = fList.ItemAt(index); 121 if (item->TooOld(now)) { 122 PRINT(("removing old entry from pending node monitor cache\n")); 123 delete fList.RemoveItemAt(index); 124 } else if (item->Match(pose->TargetModel()->NodeRef())) { 125 fList.RemoveItemAt(index); 126 #if DEBUG 127 PRINT(("reapplying node monitor for model:\n")); 128 pose->TargetModel()->PrintToStream(); 129 item->NodeMonitor()->PrintToStream(); 130 bool result = 131 #endif 132 poseView->FSNotification(item->NodeMonitor()); 133 ASSERT(result); 134 delete item; 135 } else 136 index++; 137 } 138 } 139 140