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Added controls over the datatbase pager threading priority during and outwith the frame.

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Robert Osfield
2004-01-22 10:42:32 +00:00
parent b604d22982
commit 84737941e1
2 changed files with 29 additions and 2 deletions
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16
include/osgDB/DatabasePager
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@@ -98,6 +98,19 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
/** Get the whether UseFrameBlock is on or off.*/
bool getUseFrameBlock() const { return _useFrameBlock; }
/** Set the priority of the database pager thread during the frame (i.e. while cull and draw are running.)*/
void setThreadPriorityDuringFrame(ThreadPriority duringFrame) { _threadPriorityDuringFrame = duringFrame; }
/** Get the priority of the database pager thread during the frame*/
ThreadPriority getThreadPriorityDuringFrame() const { return _threadPriorityDuringFrame; }
/** Set the priority of the database pager thread when the frame is not being exectuted (i.e. before or after cull and draw have run.)*/
void setThreadPriorityOutwithFrame(ThreadPriority outwithFrame) { _threadPriorityOutwithFrame = outwithFrame; }
/** Get the priority of the database pager thread when the frame is not being exectuted.*/
ThreadPriority getThreadPriorityOutwithFrame() const { return _threadPriorityOutwithFrame; }
/** Signal the database thread that the update, cull and draw has begun for a new frame.
* Note, this is called by the application so that the database pager can go to sleep while the CPU is busy on the main rendering threads. */
@@ -214,6 +227,9 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
osg::ref_ptr<Block> _frameBlock;
int _frameNumber;
ThreadPriority _threadPriorityDuringFrame;
ThreadPriority _threadPriorityOutwithFrame;
DatabaseRequestList _fileRequestList;
OpenThreads::Mutex _fileRequestListMutex;
osg::ref_ptr<Block> _fileRequestListEmptyBlock;