src/kits/tracker/PendingNodeMonitorCache.h

   1 /*
   2 Open Tracker License
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  33 */
  34
  35 //      PendingNodeMonitorCache is used to store node monitors that
  36 //      cannot be delivered yet because the corresponding model has not yet been
  37 //  added to a PoseView
  38 //
  39 //      The respective node montior messages are stored in a list and applied
  40 //  later, when their target shows up. They get nuked when they become too
  41 //  old.
  42 #ifndef _PENDING_NODE_MONITOR_CACHE_H
  43 #define _PENDING_NODE_MONITOR_CACHE_H
  44
  45
  46 #include <Message.h>
  47 #include <Node.h>
  48 #include <ObjectList.h>
  49
  50
  51 namespace BPrivate {
  52
  53 class BPoseView;
  54 class BPose;
  55
  56 class PendingNodeMonitorEntry {
  57 public:
  58         PendingNodeMonitorEntry(const node_ref* node, const BMessage*);
  59         const BMessage* NodeMonitor() const;
  60         bool Match(const node_ref*) const;
  61         bool TooOld(bigtime_t now) const;
  62
  63 private:
  64         bigtime_t fExpiresAfter;
  65         BMessage fNodeMonitor;
  66         node_ref fNode;
  67 };
  68
  69 class PendingNodeMonitorCache {
  70 public:
  71         PendingNodeMonitorCache();
  72         ~PendingNodeMonitorCache();
  73
  74         void Add(const BMessage*);
  75         void RemoveEntries(const node_ref*);
  76         void RemoveOldEntries();
  77
  78         void PoseCreatedOrMoved(BPoseView*, const BPose*);
  79
  80 private:
  81         BObjectList<PendingNodeMonitorEntry> fList;
  82 };
  83
  84 } // namespace BPrivate
  85
  86 using namespace BPrivate;
  87
  88
  89 #endif  // _PENDING_NODE_MONITOR_CACHE_H