Class Documentation

class ExecutionContext

Class to hold the execution context.

This class provides the execution context for the operator.

Public Functions

inline std::shared_ptr<InputContext> input() const

Get the input context.

inline std::shared_ptr<OutputContext> output() const

Get the output context.

inline void *context() const

Get the context.

virtual expected<cudaStream_t, RuntimeError> allocate_cuda_stream(const std::string &stream_name = "") = 0: allocate a new GXF CudaStream object and return the contained cudaStream_t

virtual void synchronize_streams(const std::vector<std::optional<cudaStream_t>> &cuda_streams, cudaStream_t target_cuda_stream) = 0: synchronize all of the streams in cuda_streams with target_cuda_stream

virtual expected<int, RuntimeError> device_from_stream(cudaStream_t stream) = 0: determine the CUDA device corresponding to the given stream

virtual std::shared_ptr<Operator> find_operator(const std::string &op_name = "") = 0

Find an operator by name.

If the operator name is not provided, the current operator is returned.

Parameters: op_name – The name of the operator.
Returns: A shared pointer to the operator or nullptr if the operator is not found.

virtual expected<holoscan::OperatorStatus, RuntimeError> get_operator_status(const std::string &op_name = "") = 0

Get the status of the operator.

If the operator name is not provided, the status of the current operator is returned.

Parameters: op_name – The name of the operator.
Returns: The status of the operator or an error if the operator is not found.

Protected Attributes

std::shared_ptr<OutputContext> output_context_ = nullptr: The output context.

Class ExecutionContext