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