DD::Image::OpTree Class Reference

Public Member Functions
	OpTree (Op *lpRoot=nullptr)
void	abort ()
void	cancel ()
void	clearAbortedFlag ()
void	clearCancelledFlag ()
bool	wasAborted () const
bool	wasCancelled () const
void	setExecuting (bool lExecuting)
bool	isExecuting () const
bool	addMessageOp (Op *lpOp)
	Called when an op in the tree enters an error state; returns true iff not in the set.
bool	removeMessageOp (Op *lpOp)
	Called when an op in the tree has its error cleared; returns true iff in the set.
bool	hasMessage () const
	Returns true if any op in this tree has a message set.
bool	hasError () const
	Returns true if any op in this tree has an error set.
Op *	getFirstOpWithMessage () const
	Returns the first op in the tree with a message set, or NULL if none do.
Op *	getFirstOpWithError () const
	Returns the first op in the tree with an error set, or NULL if none do.
void	setNewRoot (Op *lpRoot)
Op *	getRoot () const
int	getDebugIndex () const
	Information about an individual tree for debugging purposes.
void	setDebugLabel (const std::string &lrLabel)
const std::string &	getDebugLabel () const
int	getNumMessageOps () const

Detailed Description

This class encapsulates a tree of ops to process, and associated states for that processing. It also manages a list of observers to notify when ops' error states change.

Member Function Documentation

void OpTree::setNewRoot

(

Op *

lpRoot

)

Changes the tree root to a different op, updating references appropriately; not thread safe. Also clears aborted and cancelled flags.

References DD::Image::GetAllConnectedOps(), DD::Image::GetOpText(), and DD::Image::GetOpTreeText().