#include "tensorstore/util/future.h"
template <typename Callback, typename... Futures>
static PromiseFuturePair
tensorstore::PromiseFuturePair<T>::Link(Callback&& callback,
                                        Futures&&... future);
template <typename ResultInit, typename Callback, typename... Futures>
  requires std::is_constructible_v<Result<T>, ResultInit>
static PromiseFuturePair
tensorstore::PromiseFuturePair<T>::Link(ResultInit&& result_init,
                                        Callback&& callback,
                                        Futures&&... future);

Creates a new PromiseFuturePair and links the newly created promise with the specified future objects as if by calling tensorstore::Link.

Equivalent to:

auto pair = PromiseFuturePair<T>::Make();
tensorstore::Link(callback, pair.promise, future...);
return pair;

except that only a single allocation is used for both the promise/future pair and the link.

Parameters:
Callback &&callback

The callback to be invoked with the newly created promise and the specified future objects once they become ready.

Futures&&... future

The future objects to link.

Returns:

The promise/future pair.