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cleanupRegistry.ts

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/**

* Global registry for cleanup functions that should run during graceful shutdown.

* This module is separate from gracefulShutdown.ts to avoid circular dependencies.

*/

// Global registry for cleanup functions

const cleanupFunctions = new Set<() => Promise<void>>()

/**

* Register a cleanup function to run during graceful shutdown.

* @param cleanupFn - Function to run during cleanup (can be sync or async)

* @returns Unregister function that removes the cleanup handler

*/

export function registerCleanup(cleanupFn: () => Promise<void>): () => void {

cleanupFunctions.add(cleanupFn)

return () => cleanupFunctions.delete(cleanupFn) // Return unregister function

}

/**

* Run all registered cleanup functions.

* Used internally by gracefulShutdown.

*/

export async function runCleanupFunctions(): Promise<void> {

await Promise.all(Array.from(cleanupFunctions).map(fn => fn()))

}