syncx

Documentation

Index

• func OnceValues[T1, T2 any](fn func(context.Context) (T1, T2)) func(context.Context) (T1, T2)

Functions

func OnceValues

func OnceValues[T1, T2 any](fn func(context.Context) (T1, T2)) func(context.Context) (T1, T2)

OnceValues executes a function at most once and returns the cached result. This function behaves like sync.OnceValues, including caching both return values from the first call, but with a context argument to the function.

Can be used to do lazy database lookups that may be needed by multiple callbacks but should execute at most once.