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

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This commit is contained in:
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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15
src/osgDB/DatabasePager.cpp
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@@ -19,11 +19,14 @@ DatabasePager::DatabasePager()
{
//osg::notify(osg::INFO)<<"Constructing DatabasePager()"<<std::endl;
_useFrameBlock = false;
_useFrameBlock = false;
_frameNumber = 0;
_frameBlock = new Block;
_fileRequestListEmptyBlock = new Block;
_threadPriorityDuringFrame = PRIORITY_MIN;
_threadPriorityOutwithFrame = PRIORITY_NOMINAL;
_deleteRemovedSubgraphsInDatabaseThread = true;
_expiryDelay = 1.0;
@@ -166,7 +169,7 @@ void DatabasePager::requestNodeFile(const std::string& fileName,osg::Group* grou
{
s_startThreadCalled = true;
osg::notify(osg::DEBUG_INFO)<<"DatabasePager::startThread()"<<std::endl;
setSchedulePriority(PRIORITY_MIN);
setSchedulePriority(_threadPriorityDuringFrame);
startThread();
}
@@ -182,12 +185,20 @@ void DatabasePager::signalBeginFrame(const osg::FrameStamp* framestamp)
} //else osg::notify(osg::INFO) << "signalBeginFrame >>>>>>>>>>>>>>>>"<<std::endl;
_frameBlock->reset();
if (_threadPriorityDuringFrame!=getSchedulePriority())
setSchedulePriority(_threadPriorityDuringFrame);
}
void DatabasePager::signalEndFrame()
{
//osg::notify(osg::INFO) << "signalEndFrame <<<<<<<<<<<<<<<<<<<< "<<std::endl;
_frameBlock->release();
if (_threadPriorityOutwithFrame!=getSchedulePriority())
setSchedulePriority(_threadPriorityOutwithFrame);
}
class FindCompileableGLObjectsVisitor : public osg::NodeVisitor