breadcast/breadcast-caststream-sys/vendor/openscreen/util/scoped_wake_lock.h
Breadway 8c745d18e0
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Implement Cast Streaming mirroring, DLNA casting, daemon+GUI, and breadd integration
Builds out the full v1 scope: a vendored+patched openscreen subset for
low-latency Cast Streaming (Mirroring receiver 0F5096E8) alongside the
existing Cast V2/HLS and new DLNA/AVTransport casting paths, breadcastd's
Idle/Casting state machine with a private IPC socket, the breadcast GTK4
popup as a thin IPC client, and bread.cast.*/bread.command.cast.* breadd
integration (device discovery, start/stop, mirroring lifecycle events).
Also adds bakery/systemd/Forgejo CI packaging.

Validated end-to-end against a real Chromecast/Google TV: negotiated
Cast Streaming session, live pipeline playback, and daemon+GUI click-to-cast/
stop through the actual popup.
2026-08-03 09:07:21 +08:00

46 lines
1.5 KiB
C++

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UTIL_SCOPED_WAKE_LOCK_H_
#define UTIL_SCOPED_WAKE_LOCK_H_
#include <memory>
#include "platform/api/task_runner.h"
#include "platform/api/task_runner_deleter.h"
namespace openscreen {
// Ensures that the device does not got to sleep. This is used, for example,
// while Open Screen is communicating with peers over the network for things
// like media streaming.
//
// The wake lock is RAII: It is automatically engaged when the ScopedWakeLock is
// created and released when the ScopedWakeLock is destroyed. Open Screen code
// may sometimes create multiple instances. In that case, the wake lock should
// be engaged upon creating the first instance, and then held until all
// instances have been destroyed.
//
// TODO(issuetracker.google.com/288311411): Implement for Linux.
class ScopedWakeLock;
using ScopedWakeLockPtr = std::unique_ptr<ScopedWakeLock, TaskRunnerDeleter>;
class ScopedWakeLock {
public:
static ScopedWakeLockPtr Create(TaskRunner& task_runner);
// Instances are not copied nor moved.
ScopedWakeLock(const ScopedWakeLock&) = delete;
ScopedWakeLock(ScopedWakeLock&&) noexcept = delete;
ScopedWakeLock& operator=(const ScopedWakeLock&) = delete;
ScopedWakeLock& operator=(ScopedWakeLock&&) noexcept = delete;
ScopedWakeLock();
virtual ~ScopedWakeLock();
};
} // namespace openscreen
#endif // UTIL_SCOPED_WAKE_LOCK_H_