зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.2 KiB
C++
83 строки
2.2 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "VolumeServiceIOThread.h"
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#include "base/message_loop.h"
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#include "nsVolumeService.h"
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#include "nsXULAppAPI.h"
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#include "Volume.h"
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#include "VolumeManager.h"
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namespace mozilla {
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namespace system {
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VolumeServiceIOThread::VolumeServiceIOThread(nsVolumeService* aVolumeService)
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: mVolumeService(aVolumeService)
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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VolumeManager::RegisterStateObserver(this);
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Volume::RegisterObserver(this);
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UpdateAllVolumes();
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}
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VolumeServiceIOThread::~VolumeServiceIOThread()
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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Volume::UnregisterObserver(this);
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VolumeManager::UnregisterStateObserver(this);
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}
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void
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VolumeServiceIOThread::Notify(Volume* const & aVolume)
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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if (VolumeManager::State() != VolumeManager::VOLUMES_READY) {
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return;
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}
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mVolumeService->UpdateVolumeIOThread(aVolume);
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}
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void
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VolumeServiceIOThread::Notify(const VolumeManager::StateChangedEvent& aEvent)
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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UpdateAllVolumes();
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}
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void
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VolumeServiceIOThread::UpdateAllVolumes()
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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if (VolumeManager::State() != VolumeManager::VOLUMES_READY) {
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return;
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}
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VolumeManager::VolumeArray::size_type numVolumes = VolumeManager::NumVolumes();
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VolumeManager::VolumeArray::index_type volIndex;
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for (volIndex = 0; volIndex < numVolumes; volIndex++) {
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RefPtr<Volume> vol = VolumeManager::GetVolume(volIndex);
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mVolumeService->UpdateVolumeIOThread(vol);
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}
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}
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static StaticRefPtr<VolumeServiceIOThread> sVolumeServiceIOThread;
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void
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InitVolumeServiceIOThread(nsVolumeService* const & aVolumeService)
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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sVolumeServiceIOThread = new VolumeServiceIOThread(aVolumeService);
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}
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void
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ShutdownVolumeServiceIOThread()
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{
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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sVolumeServiceIOThread = nullptr;
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}
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} // system
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} // mozilla
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