gecko-dev/dom/midi/MIDIManagerChild.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MIDIManagerChild.h"
#include "mozilla/dom/MIDIAccessManager.h"
using namespace mozilla::dom;
MIDIManagerChild::MIDIManagerChild() : mShutdown(false) {}
mozilla::ipc::IPCResult MIDIManagerChild::RecvMIDIPortListUpdate(
const MIDIPortList& aPortList) {
MOZ_ASSERT(NS_IsMainThread());
if (mShutdown) {
return IPC_OK();
}
MOZ_ASSERT(MIDIAccessManager::IsRunning());
MIDIAccessManager::Get()->Update(aPortList);
return IPC_OK();
}
void MIDIManagerChild::SetActorAlive() {
// IPC Channels for MIDIManagers are created and managed by MIDIAccessManager,
// so once the actor is created, we'll need to add a reference to keep it
// alive until BackgroundChildImpl kills it.
AddRef();
}
void MIDIManagerChild::Shutdown() {
MOZ_ASSERT(!mShutdown);
mShutdown = true;
SendShutdown();
}