EntropyEngine::Core::Concurrency::NodeCancelledEvent

EntropyEngine::Core::Concurrency::NodeCancelledEvent

A node was cancelled due to upstream failure. More…

#include <WorkGraphEvents.h>

Inherits from EntropyEngine::Core::Concurrency::WorkGraphEvent

Public Functions

	Name
	NodeCancelledEvent(const WorkGraph * g, NodeHandle n, NodeHandle parent =NodeHandle())

Public Attributes

	Name
NodeHandle	node The cancelled node.
NodeHandle	failedParent Which parent’s failure caused this (may be invalid).

Additional inherited members

Public Functions inherited from EntropyEngine::Core::Concurrency::WorkGraphEvent

	Name
	WorkGraphEvent(const WorkGraph * g)

Public Attributes inherited from EntropyEngine::Core::Concurrency::WorkGraphEvent

	Name
std::chrono::steady_clock::time_point	timestamp When this event was created.
const WorkGraph *	graph Which graph emitted this event.

Detailed Description

struct EntropyEngine::Core::Concurrency::NodeCancelledEvent;

A node was cancelled due to upstream failure.

When a parent node fails, all its descendants get cancelled since their inputs are invalid. This event tells you which nodes were skipped and why. The failedParent tells you which upstream failure caused this cancellation.

eventBus->subscribe<NodeCancelledEvent>([](const auto& event) {
    LOG_WARN("Node {} cancelled due to failure of {}",
             event.node.getData()->name,
             event.failedParent.valid() ?
                 event.failedParent.getData()->name : "unknown");
});

Public Functions Documentation

function NodeCancelledEvent

inline NodeCancelledEvent(
    const WorkGraph * g,
    NodeHandle n,
    NodeHandle parent =NodeHandle()
)

Public Attributes Documentation

variable node

NodeHandle node;

The cancelled node.

variable failedParent

NodeHandle failedParent;

Which parent’s failure caused this (may be invalid).

---

Updated on 2026-01-26 at 17:14:35 -0500