FGFS-4.1/OpenSceneGraph
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Added OperationQueue class for future work on support thread pools that share

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a single OpeationQueue.
This commit is contained in:
Robert Osfield 2007-07-09 11:03:33 +00:00
parent e8f8c0c147
commit d70228c98d
1 changed files with 60 additions and 21 deletions
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47
include/osg/GraphicsThread
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@ -35,13 +35,13 @@ class RefBlock: virtual public osg::Referenced, public OpenThreads::Block
}; };
/** Base class for implementing graphics operations.*/ /** Base class for implementing graphics operations.*/
struct Operation : virtual public Referenced class Operation : virtual public Referenced
{ {
public:
Operation(const std::string& name, bool keep): Operation(const std::string& name, bool keep):
_name(name), _name(name),
_keep(keep) {} _keep(keep) {}
virtual ~Operation() {}
/** Set the human readable name of the operation.*/ /** Set the human readable name of the operation.*/
void setName(const std::string& name) { _name = name; } void setName(const std::string& name) { _name = name; }
@ -61,10 +61,49 @@ struct Operation : virtual public Referenced
/** Do the actual task of this operation.*/ /** Do the actual task of this operation.*/
virtual void operator () (Object*) = 0; virtual void operator () (Object*) = 0;
protected:
virtual ~Operation() {}
std::string _name; std::string _name;
bool _keep; bool _keep;
}; };
class OSG_EXPORT OperationQueue : public Referenced
{
public:
OperationQueue();
RefBlock* getOperationsBlock() { return _operationsBlock.get(); }
const RefBlock* getOperationsBlock() const { return _operationsBlock.get(); }
/** Add operation to end of OperationQueue, this will be
* executed by the operation thread once this operation gets to the head of the queue.*/
void add(Operation* operation);
/** Remove operation from OperationQueue.*/
void remove(Operation* operation);
/** Remove named operation from OperationQueue.*/
void remove(const std::string& name);
/** Remove all operations from OperationQueue.*/
void removeAllOperations();
protected:
virtual ~OperationQueue();
typedef std::list< ref_ptr<Operation> > Operations;
OpenThreads::Mutex _operationsMutex;
osg::ref_ptr<osg::RefBlock> _operationsBlock;
Operations _operations;
};
/** GraphicsThread is a helper class for running OpenGL GraphicsOperation within a single thread assigned to a specific GraphicsContext.*/ /** GraphicsThread is a helper class for running OpenGL GraphicsOperation within a single thread assigned to a specific GraphicsContext.*/
class OSG_EXPORT OperationsThread : public Referenced, public OpenThreads::Thread class OSG_EXPORT OperationsThread : public Referenced, public OpenThreads::Thread
{ {
@ -110,13 +149,13 @@ class OSG_EXPORT OperationsThread : public Referenced, public OpenThreads::Threa
observer_ptr<Object> _parent; observer_ptr<Object> _parent;
typedef std::list< ref_ptr<Operation> > OperationQueue; typedef std::list< ref_ptr<Operation> > Operations;
bool _done; bool _done;
OpenThreads::Mutex _operationsMutex; OpenThreads::Mutex _operationsMutex;
osg::ref_ptr<osg::RefBlock> _operationsBlock; osg::ref_ptr<osg::RefBlock> _operationsBlock;
OperationQueue _operations; Operations _operations;
osg::ref_ptr<Operation> _currentOperation; osg::ref_ptr<Operation> _currentOperation;
}; };