blob: 69d4da06c970a2c9b249add59787e5d98aae2c9b [file] [log] [blame]
// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <lib/fit/sequencer.h>
namespace fit {
sequencer::sequencer() {
// Capture a new consumer and intentionally abandon its associated
// completer so that a promise chained onto the consumer using
// |promise_or()| will become immediately runnable.
fit::bridge<> bridge;
prior_ = std::move(bridge.consumer);
sequencer::~sequencer() = default;
fit::consumer<> sequencer::swap_prior(fit::consumer<> new_prior) {
std::lock_guard<std::mutex> lock(mutex_);
fit::consumer<> old_prior = std::move(prior_);
prior_ = std::move(new_prior);
return old_prior;
} // namespace fit