createTimeoutSignal

function createTimeoutSignal(
   callerSignal,
   timeoutMs,
   label): {
  cleanup: () => void;
  signal: AbortSignal;
};

Defined in: packages/engine/src/utilities/TimeoutSignal.ts:13

Multiplex an optional caller AbortSignal with a hard timeout into a single AbortSignal suitable for fetch().

Implemented manually rather than with AbortSignal.any()/AbortSignal.timeout() (Chrome 116+) to stay compatible with the TypeScript lib targets used by this project.

Handles the already-aborted caller: addEventListener(“abort”, …) on a signal that has already fired never invokes the listener, so without the upfront aborted check the fetch would proceed even though the caller cancelled.

Parameters

Parameter	Type
callerSignal	AbortSignal | undefined
timeoutMs	number
label	string

Returns

{
  cleanup: () => void;
  signal: AbortSignal;
}

cleanup

cleanup: () => void;

Returns

void

signal

signal: AbortSignal;