omni::graph::exec::unstable::GraphT
Defined in omni/graph/exec/unstable/Graph.h
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template<typename ...Bases>
class GraphT : public omni::graph::exec::unstable::Implements<Bases...> Top-level container for storing the Execution Framework’s graph of graphs.
omni::graph::exec::unstable::IGraph is the top-level container used to store the graph of graphs. This top-level container is referred to as the execution graph.
omni::graph::exec::unstable::IGraph’s responsibilities include:
Tracking if the graph is currently being constructed. See omni::graph::exec::unstable::IGraph::inBuild().
Tracking gross changes to the topologies of graphs within the execution graph. This is done with the global topology stamp (see omni::graph::exec::unstable::IGraph::getGlobalTopologyStamp()). Each time a topology is invalidated, the global topology stamp is incremented. Consumers of the execution graph can use this stamp to detect changes in the graph. See Graph Invalidation for details.
Owning and providing access to the top level graph definition (see omni::graph::exec::unstable::IGraph::getNodeGraphDef()). The root node of the top-level graph definition is the root of execution graph. omni::graph::exec::unstable::IGraph is the only container, other than omni::graph::exec::unstable::INode, that attaches to definitions.
See Graph Concepts for more information on how omni::graph::exec::unstable::IGraph fits into the Execution Framework.
See omni::graph::exec::unstable::Graph for a concrete implementation of this interface.
Public Functions
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inline void acquire() noexcept
Increments the object’s reference count.
Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().
Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.
- Thread Safety
This method is thread safe.
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inline void release() noexcept
Decrements the objects reference count.
Most implementations will destroy the object if the reference count reaches 0 (though this is not a requirement).
Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().
Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.
- Thread Safety
This method is thread safe.
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inline uint32_t getUseCount() noexcept
Returns the number of different instances (this included) referencing the current object.
- Thread Safety
This method is thread safe.
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inline void *castWithoutAcquire(omni::core::TypeId id) noexcept
See omni::graph::exec::unstable::IBase_abi::castWithoutAcquire_abi.
Public Static Functions
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static inline omni::core::ObjectPtr<GraphT> create(const carb::cpp::string_view &name) noexcept
Construct a graph with default executor attached to an empty node graph.
name
is the name of the graph and must not benullptr
.A valid pointer is always returned.
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static inline omni::core::ObjectPtr<GraphT> create(const ExecutorFactory &executorFactory, const carb::cpp::string_view &name) noexcept
Construct a graph with a given executor and an empty node graph.
executorFactory
is a factory to create a user defined executor to execute the graph.name
is the name of the graph and must not benullptr
.A valid pointer is always returned.
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template<typename Fn>
static inline omni::core::ObjectPtr<GraphT> create(const carb::cpp::string_view &name, Fn &&nodeGraphDefFactory) noexcept Construct a graph with the given node graph.
nodeGraphDefFactory
will be used to create the graph’s top-level graph definition.The signature of
nodeGraphDefFactory
must be equivalent toNodeGraphDefPtr(IGraph*)
.A valid pointer is always returned.
Protected Functions
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inline INodeGraphDef *getNodeGraphDef_abi() noexcept override
Access the top-level node graph definition.
The returned omni::graph::exec::unstable::INodeGraphDef will not have omni::core::IObject::acquire() called before being returned.
This method always returns a valid pointer.
- Thread Safety
This method is thread safe. The returned pointer will be valid for the lifetime of this omni::graph::exec::unstable::IGraph.
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inline const ConstName *getName_abi() noexcept override
Name set on the graph during construction.
This method always returns a valid pointer.
- Thread Safety
This method is thread safe. The returned pointer will be valid for the lifetime of this omni::graph::exec::unstable::IGraph.
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inline Stamp *getGlobalTopologyStamp_abi() noexcept override
Return global topology of the graph. Useful when detecting that graph transformation pipeline needs to run.
See Graph Invalidation to understand how this stamp is used to detect changes in the graph.
This method always returns a valid pointer.
- Thread Safety
This method is thread safe. The returned pointer will be valid for the lifetime of this omni::graph::exec::unstable::IGraph. It is up to the caller to mutate the stamp in a thread safe manner.
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inline virtual bool inBuild_abi() noexcept override
Return
true
if a omni::graph::exec::unstable::IGraphBuilder is currently building a part of this graph.- Thread Safety
This method is thread safe.
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inline virtual void _setInBuild_abi(bool inBuild) noexcept override
Mark that an omni::graph::exec::unstable::IGraphBuilder is currently building a part of this graph.
Each builder should call
_setInBuild(true)
followed by_setInBuild(false)
once building is complete. Since multiple builders can be active at a time, it is safe for this method to be called multiple times.This method should only be called by omni::graph::exec::unstable::IGraphBuilder.
- Thread Safety
This method is thread safe.
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inline GraphT(const carb::cpp::string_view &name) noexcept
Construct with a default top level graph definition.
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inline GraphT(const ExecutorFactory &executorFactory, const carb::cpp::string_view &name) noexcept
Construct with a custom executor for a top level graph definition.
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template<typename Fn>
inline GraphT(const carb::cpp::string_view &name, Fn &&nodeGraphDefFactory) noexcept Construct with a custom top level graph factory.
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inline void acquire_abi() noexcept override
Increments the object’s reference count.
Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().
Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.
- Thread Safety
This method is thread safe.
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inline void release_abi() noexcept override
Decrements the objects reference count.
Most implementations will destroy the object if the reference count reaches 0 (though this is not a requirement).
Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().
Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.
- Thread Safety
This method is thread safe.
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inline uint32_t getUseCount_abi() noexcept override
Returns the number of different instances (this included) referencing the current object.
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inline void *cast_abi(omni::core::TypeId id) noexcept override
Returns a pointer to the interface defined by the given type id if this object implements the type id’s interface.
Objects can support multiple interfaces, even interfaces that are in different inheritance chains.
The returned object will have omni::core::IObject::acquire() called on it before it is returned, meaning it is up to the caller to call omni::core::IObject::release() on the returned pointer.
The returned pointer can be safely
reinterpret_cast<>
to the type id’s C++ class. For example, “omni.windowing.IWindow” can be cast toomni::windowing::IWindow
.Do not directly use this method, rather use a wrapper function like omni::core::cast() or omni::core::ObjectPtr::as().
- Thread Safety
This method is thread safe.
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inline void *castWithoutAcquire_abi(omni::core::TypeId id) noexcept override
Casts this object to the type described the the given id.
Returns
nullptr
if the cast was not successful.Unlike omni::core::IObject::cast(), this casting method does not call omni::core::IObject::acquire().
- Thread Safety
This method is thread safe.