FGFS-4.1/OpenSceneGraph
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Refactored the sort of the requestQueue so that there is single code path for doing the sort.

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This commit is contained in:
Robert Osfield 2008-06-27 18:59:27 +00:00
parent 214491dd94
commit a9b05e0815
2 changed files with 31 additions and 16 deletions
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2
include/osgDB/DatabasePager
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@ -349,6 +349,8 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
{
typedef std::list< osg::ref_ptr<DatabaseRequest> > RequestList;
void sort();
RequestList _requestList;
OpenThreads::Mutex _requestMutex;
};

45
src/osgDB/DatabasePager.cpp
View File

@ -83,20 +83,6 @@ RefPtrAdapter<FuncObj> refPtrAdapt(const FuncObj& func)
}
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// SortFileRequestFunctor
//
struct DatabasePager::SortFileRequestFunctor
{
bool operator() (const osg::ref_ptr<DatabasePager::DatabaseRequest>& lhs,const osg::ref_ptr<DatabasePager::DatabaseRequest>& rhs) const
{
if (lhs->_timestampLastRequest>rhs->_timestampLastRequest) return true;
else if (lhs->_timestampLastRequest<rhs->_timestampLastRequest) return false;
else return (lhs->_priorityLastRequest>rhs->_priorityLastRequest);
}
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// FindCompileableGLObjectsVisitor
@ -236,6 +222,31 @@ public:
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// SortFileRequestFunctor
//
struct DatabasePager::SortFileRequestFunctor
{
bool operator() (const osg::ref_ptr<DatabasePager::DatabaseRequest>& lhs,const osg::ref_ptr<DatabasePager::DatabaseRequest>& rhs) const
{
if (lhs->_timestampLastRequest>rhs->_timestampLastRequest) return true;
else if (lhs->_timestampLastRequest<rhs->_timestampLastRequest) return false;
else return (lhs->_priorityLastRequest>rhs->_priorityLastRequest);
}
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// ReadQueue
//
void DatabasePager::RequestQueue::sort()
{
_requestList.sort(SortFileRequestFunctor());
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// ReadQueue
@ -279,7 +290,8 @@ void DatabasePager::ReadQueue::takeFirst(osg::ref_ptr<DatabaseRequest>& database
if (!_requestList.empty())
{
_requestList.sort(SortFileRequestFunctor());
sort();
databaseRequest = _requestList.front();
databaseRequest->_requestQueue = 0;
_requestList.erase(_requestList.begin());
@ -659,7 +671,8 @@ void DatabasePager::DatabaseThread::run()
if (loadedObjectsNeedToBeCompiled)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_pager->_dataToCompileList->_requestMutex);
_pager->_dataToCompileList->_requestList.sort(SortFileRequestFunctor());
_pager->_dataToCompileList->sort();
// Prune all the old entries.
RequestQueue::RequestList::iterator tooOld