namespace gfx {
static StaticRefPtr<VRManagerChild> sVRManagerChildSingleton;
static StaticRefPtr<VRManagerParent> sVRManagerParentSingleton;
void ReleaseVRManagerParentSingleton() {
sVRManagerParentSingleton = nullptr;
}
VRManagerChild::VRManagerChild()
: mInputFrameID(-1)
{
MOZ_COUNT_CTOR(VRManagerChild);
MOZ_ASSERT(NS_IsMainThread());
}
VRManagerChild::~VRManagerChild()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_COUNT_DTOR(VRManagerChild);
Transport* trans = GetTransport();
if (trans) {
MOZ_ASSERT(XRE_GetIOMessageLoop());
RefPtr<DeleteTask<Transport>> task = new DeleteTask<Transport>(trans);
XRE_GetIOMessageLoop()->PostTask(task.forget());
}
}
/*static*/ VRManagerChild*
VRManagerChild::Get()
{
MOZ_ASSERT(sVRManagerChildSingleton);
return sVRManagerChildSingleton;
}
/*static*/ VRManagerChild*
VRManagerChild::StartUpInChildProcess(Transport* aTransport, ProcessId aOtherPid)
{
MOZ_ASSERT(NS_IsMainThread());
// There's only one VRManager per child process.
MOZ_ASSERT(!sVRManagerChildSingleton);
RefPtr<VRManagerChild> child(new VRManagerChild());
if (!child->Open(aTransport, aOtherPid, XRE_GetIOMessageLoop(), ipc::ChildSide)) {
NS_RUNTIMEABORT("Couldn't Open() Compositor channel.");
return nullptr;
}
sVRManagerChildSingleton = child;
return sVRManagerChildSingleton;
}
/*static*/ void
VRManagerChild::StartUpSameProcess()
{
NS_ASSERTION(NS_IsMainThread(), "Should be on the main Thread!");
if (sVRManagerChildSingleton == nullptr) {
sVRManagerChildSingleton = new VRManagerChild();
sVRManagerParentSingleton = VRManagerParent::CreateSameProcess();
sVRManagerChildSingleton->Open(sVRManagerParentSingleton->GetIPCChannel(),
mozilla::layers::CompositorThreadHolder::Loop(),
mozilla::ipc::ChildSide);
}
}
/*static*/ void
VRManagerChild::ShutDown()
{
MOZ_ASSERT(NS_IsMainThread());
if (sVRManagerChildSingleton) {
sVRManagerChildSingleton->Destroy();
sVRManagerChildSingleton = nullptr;
}
}
/*static*/ void
VRManagerChild::DeferredDestroy(RefPtr<VRManagerChild> aVRManagerChild)
{
aVRManagerChild->Close();
}
void
VRManagerChild::Destroy()
{
// This must not be called from the destructor!
MOZ_ASSERT(mRefCnt != 0);
// Keep ourselves alive until everything has been shut down
RefPtr<VRManagerChild> selfRef = this;
// The DeferredDestroyVRManager task takes ownership of
// the VRManagerChild and will release it when it runs.
MessageLoop::current()->PostTask(
NewRunnableFunction(DeferredDestroy, selfRef));
}
bool
VRManagerChild::RecvUpdateDeviceInfo(nsTArray<VRDeviceUpdate>&& aDeviceUpdates)
{
// mDevices could be a hashed container for more scalability, but not worth
// it now as we expect < 10 entries.
nsTArray<RefPtr<VRDeviceProxy> > devices;
for (auto& deviceUpdate: aDeviceUpdates) {
bool isNewDevice = true;
for (auto& device: mDevices) {
if (device->GetDeviceInfo().GetDeviceID() == deviceUpdate.mDeviceInfo.GetDeviceID()) {
device->UpdateDeviceInfo(deviceUpdate);
devices.AppendElement(device);
isNewDevice = false;
break;
}
}
if (isNewDevice) {
if (deviceUpdate.mDeviceInfo.GetUseMainThreadOrientation()) {
devices.AppendElement(new VRDeviceProxyOrientationFallBack(deviceUpdate));
} else {
devices.AppendElement(new VRDeviceProxy(deviceUpdate));
}
}
}
mDevices = devices;
for (auto& nav: mNavigatorCallbacks) {
nav->NotifyVRDevicesUpdated();
}
mNavigatorCallbacks.Clear();
return true;
}
bool
VRManagerChild::RecvUpdateDeviceSensors(nsTArray<VRSensorUpdate>&& aDeviceSensorUpdates)
{
// mDevices could be a hashed container for more scalability, but not worth
// it now as we expect < 10 entries.
for (auto& sensorUpdate: aDeviceSensorUpdates) {
for (auto& device: mDevices) {
if (device->GetDeviceInfo().GetDeviceID() == sensorUpdate.mDeviceID) {
device->UpdateSensorState(sensorUpdate.mSensorState);
mInputFrameID = sensorUpdate.mSensorState.inputFrameID;
break;
}
}
}
return true;
}
bool
VRManagerChild::GetVRDevices(nsTArray<RefPtr<VRDeviceProxy> >& aDevices)
{
aDevices = mDevices;
return true;
}
bool
VRManagerChild::RefreshVRDevicesWithCallback(dom::Navigator* aNavigator)
{
bool success = SendRefreshDevices();
if (success) {
mNavigatorCallbacks.AppendElement(aNavigator);
}
return success;
}
int
VRManagerChild::GetInputFrameID()
{
return mInputFrameID;
}
} // namespace gfx
namespace layers {
StaticRefPtr<VideoBridgeChild> sVideoBridgeChildSingleton;
/* static */ void
VideoBridgeChild::Startup()
{
sVideoBridgeChildSingleton = new VideoBridgeChild();
RefPtr<VideoBridgeParent> parent = new VideoBridgeParent();
MessageLoop* loop = CompositorThreadHolder::Loop();
sVideoBridgeChildSingleton->Open(parent->GetIPCChannel(),
loop,
ipc::ChildSide);
parent->SetOtherProcessId(base::GetCurrentProcId());
}
/* static */ void
VideoBridgeChild::Shutdown()
{
sVideoBridgeChildSingleton = nullptr;
}
VideoBridgeChild::VideoBridgeChild()
: mMessageLoop(MessageLoop::current())
{
sVideoBridgeChildSingleton = this;
}
VideoBridgeChild::~VideoBridgeChild()
{
}
VideoBridgeChild*
VideoBridgeChild::GetSingleton()
{
return sVideoBridgeChildSingleton;
}
bool
VideoBridgeChild::AllocUnsafeShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
return PVideoBridgeChild::AllocUnsafeShmem(aSize, aType, aShmem);
}
bool
VideoBridgeChild::AllocShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
MOZ_ASSERT(CanSend());
return PVideoBridgeChild::AllocShmem(aSize, aType, aShmem);
}
bool
VideoBridgeChild::DeallocShmem(ipc::Shmem& aShmem)
{
return PVideoBridgeChild::DeallocShmem(aShmem);
}
PTextureChild*
VideoBridgeChild::AllocPTextureChild(const SurfaceDescriptor&,
const LayersBackend&,
const TextureFlags&,
const uint64_t& aSerial)
{
MOZ_ASSERT(CanSend());
return TextureClient::CreateIPDLActor();
}
bool
VideoBridgeChild::DeallocPTextureChild(PTextureChild* actor)
{
return TextureClient::DestroyIPDLActor(actor);
}
PTextureChild*
VideoBridgeChild::CreateTexture(const SurfaceDescriptor& aSharedData,
LayersBackend aLayersBackend,
TextureFlags aFlags,
uint64_t aSerial)
{
MOZ_ASSERT(CanSend());
return SendPTextureConstructor(aSharedData, aLayersBackend, aFlags, aSerial);
}
bool VideoBridgeChild::IsSameProcess() const
{
return OtherPid() == base::GetCurrentProcId();
}
} // namespace layers
// static
void ImageBridgeChild::DispatchReleaseTextureClient(TextureClient* aClient)
{
sImageBridgeChildSingleton->GetMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(&ReleaseTextureClientNow, aClient));
}
namespace system {
class AutoMounter;
/**************************************************************************
*
* Some helper functions for reading/writing files in /sys
*
**************************************************************************/
bool
ReadSysFile(const char* aFilename, char* aBuf, size_t aBufSize)
{
int fd = open(aFilename, O_RDONLY);
if (fd < 0) {
ERR("Unable to open file '%s' for reading", aFilename);
return false;
}
ScopedClose autoClose(fd);
ssize_t bytesRead = read(fd, aBuf, aBufSize - 1);
if (bytesRead < 0) {
ERR("Unable to read from file '%s'", aFilename);
return false;
}
if (aBuf[bytesRead - 1] == '\n') {
bytesRead--;
}
aBuf[bytesRead] = '\0';
return true;
}
static bool
ReadSysFile(const char* aFilename, bool* aVal)
{
char valBuf[20];
if (!ReadSysFile(aFilename, valBuf, sizeof(valBuf))) {
return false;
}
int intVal;
if (sscanf(valBuf, "%d", &intVal) != 1) {
return false;
}
*aVal = (intVal != 0);
return true;
}
/***************************************************************************/
inline const char* SwitchStateStr(const SwitchEvent& aEvent)
{
return aEvent.status() == SWITCH_STATE_ON ? "plugged" : "unplugged";
}
/***************************************************************************/
static bool
IsUsbCablePluggedIn()
{
#if 0
// Use this code when bug 745078 gets fixed (or use whatever the
// appropriate method is)
return GetCurrentSwitchEvent(SWITCH_USB) == SWITCH_STATE_ON;
#else
// Until then, just go read the file directly
if (access(ICS_SYS_USB_STATE, F_OK) == 0) {
char usbState[20];
return ReadSysFile(ICS_SYS_USB_STATE,
usbState, sizeof(usbState)) &&
(strcmp(usbState, "CONFIGURED") == 0);
}
bool configured;
return ReadSysFile(GB_SYS_USB_CONFIGURED, &configured) &&
configured;
#endif
}
/***************************************************************************/
// The AutoVolumeManagerStateObserver allows the AutoMounter to know when
// the volume manager changes state (i.e. it has finished initialization)
class AutoVolumeManagerStateObserver : public VolumeManager::StateObserver
{
public:
virtual void Notify(const VolumeManager::StateChangedEvent& aEvent);
};
// The AutoVolumeEventObserver allows the AutoMounter to know about card
// insertion and removal, as well as state changes in the volume.
class AutoVolumeEventObserver : public Volume::EventObserver
{
public:
virtual void Notify(Volume * const & aEvent);
};
class AutoMounterResponseCallback : public VolumeResponseCallback
{
public:
AutoMounterResponseCallback()
: mErrorCount(0)
{
}
protected:
virtual void ResponseReceived(const VolumeCommand* aCommand);
private:
const static int kMaxErrorCount = 3; // Max number of errors before we give up
int mErrorCount;
};
/***************************************************************************/
class AutoMounter : public RefCounted<AutoMounter>
{
public:
typedef nsTArray<RefPtr<Volume> > VolumeArray;
AutoMounter()
: mResponseCallback(new AutoMounterResponseCallback),
mMode(AUTOMOUNTER_DISABLE)
{
VolumeManager::RegisterStateObserver(&mVolumeManagerStateObserver);
Volume::RegisterObserver(&mVolumeEventObserver);
VolumeManager::VolumeArray::size_type numVolumes = VolumeManager::NumVolumes();
VolumeManager::VolumeArray::index_type i;
for (i = 0; i < numVolumes; i++) {
RefPtr<Volume> vol = VolumeManager::GetVolume(i);
if (vol) {
vol->RegisterObserver(&mVolumeEventObserver);
// We need to pick up the intial value of the
// ums.volume.NAME.enabled setting.
AutoMounterSetting::CheckVolumeSettings(vol->Name());
}
}
DBG("Calling UpdateState from constructor");
UpdateState();
}
~AutoMounter()
{
VolumeManager::VolumeArray::size_type numVolumes = VolumeManager::NumVolumes();
VolumeManager::VolumeArray::index_type volIndex;
for (volIndex = 0; volIndex < numVolumes; volIndex++) {
RefPtr<Volume> vol = VolumeManager::GetVolume(volIndex);
if (vol) {
vol->UnregisterObserver(&mVolumeEventObserver);
}
}
Volume::UnregisterObserver(&mVolumeEventObserver);
VolumeManager::UnregisterStateObserver(&mVolumeManagerStateObserver);
}
void UpdateState();
const char* ModeStr(int32_t aMode)
{
switch (aMode) {
case AUTOMOUNTER_DISABLE: return "Disable";
case AUTOMOUNTER_ENABLE: return "Enable";
case AUTOMOUNTER_DISABLE_WHEN_UNPLUGGED: return "DisableWhenUnplugged";
}
return "??? Unknown ???";
}
void SetMode(int32_t aMode)
{
if ((aMode == AUTOMOUNTER_DISABLE_WHEN_UNPLUGGED) &&
(mMode == AUTOMOUNTER_DISABLE)) {
// If it's already disabled, then leave it as disabled.
// AUTOMOUNTER_DISABLE_WHEN_UNPLUGGED implies "enabled until unplugged"
aMode = AUTOMOUNTER_DISABLE;
}
if ((aMode == AUTOMOUNTER_DISABLE) &&
(mMode == AUTOMOUNTER_ENABLE) && IsUsbCablePluggedIn()) {
// On many devices (esp non-Samsung), we can't force the disable, so we
// need to defer until the USB cable is actually unplugged.
// See bug 777043.
//
// Otherwise our attempt to disable it will fail, and we'll wind up in a bad
// state where the AutoMounter thinks that Sharing has been turned off, but
// the files are actually still being Shared because the attempt to unshare
// failed.
LOG("Attempting to disable UMS. Deferring until USB cable is unplugged.");
aMode = AUTOMOUNTER_DISABLE_WHEN_UNPLUGGED;
}
if (aMode != mMode) {
LOG("Changing mode from '%s' to '%s'", ModeStr(mMode), ModeStr(aMode));
mMode = aMode;
DBG("Calling UpdateState due to mode set to %d", mMode);
UpdateState();
}
}
void SetSharingMode(const nsACString& aVolumeName, bool aAllowSharing)
{
RefPtr<Volume> vol = VolumeManager::FindVolumeByName(aVolumeName);
if (!vol) {
return;
}
if (vol->IsSharingEnabled() == aAllowSharing) {
return;
}
vol->SetSharingEnabled(aAllowSharing);
DBG("Calling UpdateState due to volume %s shareing set to %d",
vol->NameStr(), (int)aAllowSharing);
UpdateState();
}
private:
AutoVolumeEventObserver mVolumeEventObserver;
AutoVolumeManagerStateObserver mVolumeManagerStateObserver;
RefPtr<VolumeResponseCallback> mResponseCallback;
int32_t mMode;
};
static StaticRefPtr<AutoMounter> sAutoMounter;
/***************************************************************************/
void
AutoVolumeManagerStateObserver::Notify(const VolumeManager::StateChangedEvent &)
{
LOG("VolumeManager state changed event: %s", VolumeManager::StateStr());
if (!sAutoMounter) {
return;
}
DBG("Calling UpdateState due to VolumeManagerStateObserver");
sAutoMounter->UpdateState();
}
void
AutoVolumeEventObserver::Notify(Volume * const &)
{
if (!sAutoMounter) {
return;
}
DBG("Calling UpdateState due to VolumeEventStateObserver");
sAutoMounter->UpdateState();
}
void
AutoMounterResponseCallback::ResponseReceived(const VolumeCommand* aCommand)
{
if (WasSuccessful()) {
DBG("Calling UpdateState due to Volume::OnSuccess");
mErrorCount = 0;
sAutoMounter->UpdateState();
return;
}
ERR("Command '%s' failed: %d '%s'",
aCommand->CmdStr(), ResponseCode(), ResponseStr().get());
if (++mErrorCount < kMaxErrorCount) {
DBG("Calling UpdateState due to VolumeResponseCallback::OnError");
sAutoMounter->UpdateState();
}
}
/***************************************************************************/
void
AutoMounter::UpdateState()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
// If the following preconditions are met:
// - UMS is available (i.e. compiled into the kernel)
// - UMS is enabled
// - AutoMounter is enabled
// - USB cable is plugged in
// then we will try to unmount and share
// otherwise we will try to unshare and mount.
if (VolumeManager::State() != VolumeManager::VOLUMES_READY) {
// The volume manager isn't in a ready state, so there
// isn't anything else that we can do.
LOG("UpdateState: VolumeManager not ready yet");
return;
}
if (mResponseCallback->IsPending()) {
// We only deal with one outstanding volume command at a time,
// so we need to wait for it to finish.
return;
}
bool umsAvail = false;
bool umsEnabled = false;
if (access(ICS_SYS_USB_FUNCTIONS, F_OK) == 0) {
umsAvail = (access(ICS_SYS_UMS_DIRECTORY, F_OK) == 0);
char functionsStr[60];
umsEnabled = umsAvail &&
ReadSysFile(ICS_SYS_USB_FUNCTIONS, functionsStr, sizeof(functionsStr)) &&
!!strstr(functionsStr, "mass_storage");
} else {
umsAvail = ReadSysFile(GB_SYS_UMS_ENABLE, &umsEnabled);
}
bool usbCablePluggedIn = IsUsbCablePluggedIn();
bool enabled = (mMode == AUTOMOUNTER_ENABLE);
if (mMode == AUTOMOUNTER_DISABLE_WHEN_UNPLUGGED) {
enabled = usbCablePluggedIn;
if (!usbCablePluggedIn) {
mMode = AUTOMOUNTER_DISABLE;
}
}
bool tryToShare = (umsAvail && umsEnabled && enabled && usbCablePluggedIn);
LOG("UpdateState: umsAvail:%d umsEnabled:%d mode:%d usbCablePluggedIn:%d tryToShare:%d",
umsAvail, umsEnabled, mMode, usbCablePluggedIn, tryToShare);
VolumeArray::index_type volIndex;
VolumeArray::size_type numVolumes = VolumeManager::NumVolumes();
for (volIndex = 0; volIndex < numVolumes; volIndex++) {
RefPtr<Volume> vol = VolumeManager::GetVolume(volIndex);
Volume::STATE volState = vol->State();
if (vol->State() == nsIVolume::STATE_MOUNTED) {
LOG("UpdateState: Volume %s is %s and %s @ %s gen %d locked %d sharing %c",
vol->NameStr(), vol->StateStr(),
vol->MediaPresent() ? "inserted" : "missing",
vol->MountPoint().get(), vol->MountGeneration(),
(int)vol->IsMountLocked(),
vol->CanBeShared() ? (vol->IsSharingEnabled() ? 'y' : 'n') : 'x');
} else {
LOG("UpdateState: Volume %s is %s and %s", vol->NameStr(), vol->StateStr(),
vol->MediaPresent() ? "inserted" : "missing");
}
if (!vol->MediaPresent()) {
// No media - nothing we can do
continue;
}
if (tryToShare && vol->IsSharingEnabled()) {
// We're going to try to unmount and share the volumes
switch (volState) {
case nsIVolume::STATE_MOUNTED: {
if (vol->IsMountLocked()) {
// The volume is currently locked, so leave it in the mounted
// state.
LOGW("UpdateState: Mounted volume %s is locked, not sharing",
vol->NameStr());
break;
}
// Check to see if there are any open files on the volume and
// don't initiate the unmount while there are open files.
OpenFileFinder::Info fileInfo;
OpenFileFinder fileFinder(vol->MountPoint());
if (fileFinder.First(&fileInfo)) {
LOGW("The following files are open under '%s'",
vol->MountPoint().get());
do {
LOGW(" PID: %d file: '%s' app: '%s' comm: '%s' exe: '%s'\n",
fileInfo.mPid,
fileInfo.mFileName.get(),
fileInfo.mAppName.get(),
fileInfo.mComm.get(),
fileInfo.mExe.get());
} while (fileFinder.Next(&fileInfo));
LOGW("UpdateState: Mounted volume %s has open files, not sharing",
vol->NameStr());
// Check again in 5 seconds to see if the files are closed. Since
// we're trying to share the volume, this implies that we're
// plugged into the PC via USB and this in turn implies that the
// battery is charging, so we don't need to be too concerned about
// wasting battery here.
MessageLoopForIO::current()->
PostDelayedTask(FROM_HERE,
NewRunnableMethod(this, &AutoMounter::UpdateState),
5000);
break;
}
// Volume is mounted, we need to unmount before
// we can share.
LOG("UpdateState: Unmounting %s", vol->NameStr());
vol->StartUnmount(mResponseCallback);
return; // UpdateState will be called again when the Unmount command completes
}
case nsIVolume::STATE_IDLE: {
// Volume is unmounted. We can go ahead and share.
LOG("UpdateState: Sharing %s", vol->NameStr());
vol->StartShare(mResponseCallback);
return; // UpdateState will be called again when the Share command completes
}
default: {
// Not in a state that we can do anything about.
break;
}
}
} else {
// We're going to try and unshare and remount the volumes
switch (volState) {
case nsIVolume::STATE_SHARED: {
// Volume is shared. We can go ahead and unshare.
LOG("UpdateState: Unsharing %s", vol->NameStr());
vol->StartUnshare(mResponseCallback);
return; // UpdateState will be called again when the Unshare command completes
}
case nsIVolume::STATE_IDLE: {
// Volume is unmounted, try to mount.
LOG("UpdateState: Mounting %s", vol->NameStr());
vol->StartMount(mResponseCallback);
return; // UpdateState will be called again when Mount command completes
}
default: {
// Not in a state that we can do anything about.
break;
}
}
}
}
}
/***************************************************************************/
static void
InitAutoMounterIOThread()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
MOZ_ASSERT(!sAutoMounter);
sAutoMounter = new AutoMounter();
}
static void
ShutdownAutoMounterIOThread()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
sAutoMounter = NULL;
ShutdownVolumeManager();
}
static void
SetAutoMounterModeIOThread(const int32_t& aMode)
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
MOZ_ASSERT(sAutoMounter);
sAutoMounter->SetMode(aMode);
}
static void
SetAutoMounterSharingModeIOThread(const nsCString& aVolumeName, const bool& aAllowSharing)
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
MOZ_ASSERT(sAutoMounter);
sAutoMounter->SetSharingMode(aVolumeName, aAllowSharing);
}
static void
UsbCableEventIOThread()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
if (!sAutoMounter) {
return;
}
DBG("Calling UpdateState due to USBCableEvent");
sAutoMounter->UpdateState();
}
/**************************************************************************
*
* Public API
*
* Since the AutoMounter runs in IO Thread context, we need to switch
* to IOThread context before we can do anything.
*
**************************************************************************/
class UsbCableObserver : public SwitchObserver,
public RefCounted<UsbCableObserver>
{
public:
UsbCableObserver()
{
RegisterSwitchObserver(SWITCH_USB, this);
}
~UsbCableObserver()
{
UnregisterSwitchObserver(SWITCH_USB, this);
}
virtual void Notify(const SwitchEvent& aEvent)
{
DBG("UsbCable switch device: %d state: %s\n",
aEvent.device(), SwitchStateStr(aEvent));
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(UsbCableEventIOThread));
}
};
static StaticRefPtr<UsbCableObserver> sUsbCableObserver;
static StaticRefPtr<AutoMounterSetting> sAutoMounterSetting;
void
InitAutoMounter()
{
InitVolumeManager();
sAutoMounterSetting = new AutoMounterSetting();
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(InitAutoMounterIOThread));
// Switch Observers need to run on the main thread, so we need to
// start it here and have it send events to the AutoMounter running
// on the IO Thread.
sUsbCableObserver = new UsbCableObserver();
}
void
SetAutoMounterMode(int32_t aMode)
{
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(SetAutoMounterModeIOThread, aMode));
}
void
SetAutoMounterSharingMode(const nsCString& aVolumeName, bool aAllowSharing)
{
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(SetAutoMounterSharingModeIOThread,
aVolumeName, aAllowSharing));
}
void
ShutdownAutoMounter()
{
sAutoMounterSetting = NULL;
sUsbCableObserver = NULL;
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(ShutdownAutoMounterIOThread));
}
} // system
namespace mozilla {
using namespace ipc;
using namespace layers;
using namespace gfx;
// Only modified on the main-thread
StaticRefPtr<nsIThread> sVideoDecoderChildThread;
StaticRefPtr<AbstractThread> sVideoDecoderChildAbstractThread;
// Only accessed from sVideoDecoderChildThread
static StaticRefPtr<VideoDecoderManagerChild> sDecoderManager;
static UniquePtr<nsTArray<RefPtr<Runnable>>> sRecreateTasks;
/* static */
void VideoDecoderManagerChild::InitializeThread() {
MOZ_ASSERT(NS_IsMainThread());
if (!sVideoDecoderChildThread) {
RefPtr<nsIThread> childThread;
nsresult rv = NS_NewNamedThread("VideoChild", getter_AddRefs(childThread));
NS_ENSURE_SUCCESS_VOID(rv);
sVideoDecoderChildThread = childThread;
sVideoDecoderChildAbstractThread =
AbstractThread::CreateXPCOMThreadWrapper(childThread, false);
sRecreateTasks = MakeUnique<nsTArray<RefPtr<Runnable>>>();
}
}
/* static */
void VideoDecoderManagerChild::InitForContent(
Endpoint<PVideoDecoderManagerChild>&& aVideoManager) {
InitializeThread();
sVideoDecoderChildThread->Dispatch(
NewRunnableFunction("InitForContentRunnable", &Open,
std::move(aVideoManager)),
NS_DISPATCH_NORMAL);
}
/* static */
void VideoDecoderManagerChild::Shutdown() {
MOZ_ASSERT(NS_IsMainThread());
if (sVideoDecoderChildThread) {
sVideoDecoderChildThread->Dispatch(
NS_NewRunnableFunction("VideoDecoderManagerChild::Shutdown",
[]() {
if (sDecoderManager &&
sDecoderManager->CanSend()) {
sDecoderManager->Close();
sDecoderManager = nullptr;
}
}),
NS_DISPATCH_NORMAL);
sVideoDecoderChildAbstractThread = nullptr;
sVideoDecoderChildThread->Shutdown();
sVideoDecoderChildThread = nullptr;
sRecreateTasks = nullptr;
}
}
void VideoDecoderManagerChild::RunWhenRecreated(
already_AddRefed<Runnable> aTask) {
MOZ_ASSERT(NS_GetCurrentThread() == GetManagerThread());
// If we've already been recreated, then run the task immediately.
if (sDecoderManager && sDecoderManager != this &&
sDecoderManager->CanSend()) {
RefPtr<Runnable> task = aTask;
task->Run();
} else {
sRecreateTasks->AppendElement(aTask);
}
}
/* static */
VideoDecoderManagerChild* VideoDecoderManagerChild::GetSingleton() {
MOZ_ASSERT(NS_GetCurrentThread() == GetManagerThread());
return sDecoderManager;
}
/* static */
nsIThread* VideoDecoderManagerChild::GetManagerThread() {
return sVideoDecoderChildThread;
}
/* static */
AbstractThread* VideoDecoderManagerChild::GetManagerAbstractThread() {
return sVideoDecoderChildAbstractThread;
}
PVideoDecoderChild* VideoDecoderManagerChild::AllocPVideoDecoderChild(
const VideoInfo& aVideoInfo, const float& aFramerate,
const CreateDecoderParams::OptionSet& aOptions,
const layers::TextureFactoryIdentifier& aIdentifier, bool* aSuccess,
nsCString* /* not used */, nsCString* /* not used */,
nsCString* /* not used */) {
return new VideoDecoderChild();
}
bool VideoDecoderManagerChild::DeallocPVideoDecoderChild(
PVideoDecoderChild* actor) {
VideoDecoderChild* child = static_cast<VideoDecoderChild*>(actor);
child->IPDLActorDestroyed();
return true;
}
void VideoDecoderManagerChild::Open(
Endpoint<PVideoDecoderManagerChild>&& aEndpoint) {
// Make sure we always dispatch everything in sRecreateTasks, even if we
// fail since this is as close to being recreated as we will ever be.
sDecoderManager = nullptr;
if (aEndpoint.IsValid()) {
RefPtr<VideoDecoderManagerChild> manager = new VideoDecoderManagerChild();
if (aEndpoint.Bind(manager)) {
sDecoderManager = manager;
manager->InitIPDL();
}
}
for (Runnable* task : *sRecreateTasks) {
task->Run();
}
sRecreateTasks->Clear();
}
void VideoDecoderManagerChild::InitIPDL() {
mCanSend = true;
mIPDLSelfRef = this;
}
void VideoDecoderManagerChild::ActorDestroy(ActorDestroyReason aWhy) {
mCanSend = false;
}
void VideoDecoderManagerChild::DeallocPVideoDecoderManagerChild() {
mIPDLSelfRef = nullptr;
}
bool VideoDecoderManagerChild::CanSend() {
MOZ_ASSERT(NS_GetCurrentThread() == GetManagerThread());
return mCanSend;
}
bool VideoDecoderManagerChild::DeallocShmem(mozilla::ipc::Shmem& aShmem) {
if (NS_GetCurrentThread() != sVideoDecoderChildThread) {
RefPtr<VideoDecoderManagerChild> self = this;
mozilla::ipc::Shmem shmem = aShmem;
sVideoDecoderChildThread->Dispatch(
NS_NewRunnableFunction("VideoDecoderManagerChild::DeallocShmem",
[self, shmem]() {
if (self->CanSend()) {
mozilla::ipc::Shmem shmemCopy = shmem;
self->DeallocShmem(shmemCopy);
}
}),
NS_DISPATCH_NORMAL);
return true;
}
return PVideoDecoderManagerChild::DeallocShmem(aShmem);
}
struct SurfaceDescriptorUserData {
SurfaceDescriptorUserData(VideoDecoderManagerChild* aAllocator,
SurfaceDescriptor& aSD)
: mAllocator(aAllocator), mSD(aSD) {}
~SurfaceDescriptorUserData() { DestroySurfaceDescriptor(mAllocator, &mSD); }
RefPtr<VideoDecoderManagerChild> mAllocator;
SurfaceDescriptor mSD;
};
void DeleteSurfaceDescriptorUserData(void* aClosure) {
SurfaceDescriptorUserData* sd =
reinterpret_cast<SurfaceDescriptorUserData*>(aClosure);
delete sd;
}
already_AddRefed<SourceSurface> VideoDecoderManagerChild::Readback(
const SurfaceDescriptorGPUVideo& aSD) {
// We can't use NS_DISPATCH_SYNC here since that can spin the event
// loop while it waits. This function can be called from JS and we
// don't want that to happen.
SynchronousTask task("Readback sync");
RefPtr<VideoDecoderManagerChild> ref = this;
SurfaceDescriptor sd;
if (NS_FAILED(sVideoDecoderChildThread->Dispatch(
NS_NewRunnableFunction("VideoDecoderManagerChild::Readback",
[&]() {
AutoCompleteTask complete(&task);
if (ref->CanSend()) {
ref->SendReadback(aSD, &sd);
}
}),
NS_DISPATCH_NORMAL))) {
return nullptr;
}
task.Wait();
if (!IsSurfaceDescriptorValid(sd)) {
return nullptr;
}
RefPtr<DataSourceSurface> source = GetSurfaceForDescriptor(sd);
if (!source) {
DestroySurfaceDescriptor(this, &sd);
NS_WARNING("Failed to map SurfaceDescriptor in Readback");
return nullptr;
}
static UserDataKey sSurfaceDescriptor;
source->AddUserData(&sSurfaceDescriptor,
new SurfaceDescriptorUserData(this, sd),
DeleteSurfaceDescriptorUserData);
return source.forget();
}
void VideoDecoderManagerChild::DeallocateSurfaceDescriptorGPUVideo(
const SurfaceDescriptorGPUVideo& aSD) {
RefPtr<VideoDecoderManagerChild> ref = this;
SurfaceDescriptorGPUVideo sd = std::move(aSD);
sVideoDecoderChildThread->Dispatch(
NS_NewRunnableFunction(
"VideoDecoderManagerChild::DeallocateSurfaceDescriptorGPUVideo",
[ref, sd]() {
if (ref->CanSend()) {
ref->SendDeallocateSurfaceDescriptorGPUVideo(sd);
}
}),
NS_DISPATCH_NORMAL);
}
void VideoDecoderManagerChild::HandleFatalError(const char* aMsg) const {
dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aMsg, OtherPid());
}
} // namespace mozilla
namespace system {
static StaticRefPtr<VolumeManager> sVolumeManager;
VolumeManager::STATE VolumeManager::mState = VolumeManager::UNINITIALIZED;
VolumeManager::StateObserverList VolumeManager::mStateObserverList;
/***************************************************************************/
VolumeManager::VolumeManager()
: LineWatcher('\0', kRcvBufSize),
mSocket(-1),
mCommandPending(false)
{
DBG("VolumeManager constructor called");
}
VolumeManager::~VolumeManager()
{
}
//static
void
VolumeManager::Dump(const char* aLabel)
{
if (!sVolumeManager) {
LOG("%s: sVolumeManager == null", aLabel);
return;
}
VolumeArray::size_type numVolumes = NumVolumes();
VolumeArray::index_type volIndex;
for (volIndex = 0; volIndex < numVolumes; volIndex++) {
RefPtr<Volume> vol = GetVolume(volIndex);
vol->Dump(aLabel);
}
}
//static
size_t
VolumeManager::NumVolumes()
{
if (!sVolumeManager) {
return 0;
}
return sVolumeManager->mVolumeArray.Length();
}
//static
TemporaryRef<Volume>
VolumeManager::GetVolume(size_t aIndex)
{
MOZ_ASSERT(aIndex < NumVolumes());
return sVolumeManager->mVolumeArray[aIndex];
}
//static
VolumeManager::STATE
VolumeManager::State()
{
return mState;
}
//static
const char *
VolumeManager::StateStr(VolumeManager::STATE aState)
{
switch (aState) {
case UNINITIALIZED: return "Uninitialized";
case STARTING: return "Starting";
case VOLUMES_READY: return "Volumes Ready";
}
return "???";
}
//static
void
VolumeManager::SetState(STATE aNewState)
{
if (mState != aNewState) {
LOG("changing state from '%s' to '%s'",
StateStr(mState), StateStr(aNewState));
mState = aNewState;
mStateObserverList.Broadcast(StateChangedEvent());
}
}
//static
void
VolumeManager::RegisterStateObserver(StateObserver* aObserver)
{
mStateObserverList.AddObserver(aObserver);
}
//static
void VolumeManager::UnregisterStateObserver(StateObserver* aObserver)
{
mStateObserverList.RemoveObserver(aObserver);
}
//static
TemporaryRef<Volume>
VolumeManager::FindVolumeByName(const nsCSubstring& aName)
{
if (!sVolumeManager) {
return nullptr;
}
VolumeArray::size_type numVolumes = NumVolumes();
VolumeArray::index_type volIndex;
for (volIndex = 0; volIndex < numVolumes; volIndex++) {
RefPtr<Volume> vol = GetVolume(volIndex);
if (vol->Name().Equals(aName)) {
return vol;
}
}
return nullptr;
}
//static
TemporaryRef<Volume>
VolumeManager::FindAddVolumeByName(const nsCSubstring& aName)
{
RefPtr<Volume> vol = FindVolumeByName(aName);
if (vol) {
return vol;
}
// No volume found, create and add a new one.
vol = new Volume(aName);
sVolumeManager->mVolumeArray.AppendElement(vol);
return vol;
}
//static
void VolumeManager::InitConfig()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
// This function uses /system/etc/volume.cfg to add additional volumes
// to the Volume Manager.
//
// This is useful on devices like the Nexus 4, which have no physical sd card
// or dedicated partition.
//
// The format of the volume.cfg file is as follows:
// create volume-name mount-point
// Blank lines and lines starting with the hash character "#" will be ignored.
ScopedCloseFile fp;
int n = 0;
char line[255];
char *command, *volNamePtr, *mountPointPtr, *save_ptr;
const char *filename = "/system/etc/volume.cfg";
if (!(fp = fopen(filename, "r"))) {
LOG("Unable to open volume configuration file '%s' - ignoring", filename);
return;
}
while(fgets(line, sizeof(line), fp)) {
const char *delim = " \t\n";
n++;
if (line[0] == '#')
continue;
if (!(command = strtok_r(line, delim, &save_ptr))) {
// Blank line - ignore
continue;
}
if (!strcmp(command, "create")) {
if (!(volNamePtr = strtok_r(nullptr, delim, &save_ptr))) {
ERR("No vol_name in %s line %d", filename, n);
continue;
}
if (!(mountPointPtr = strtok_r(nullptr, delim, &save_ptr))) {
ERR("No mount point for volume '%s'. %s line %d", volNamePtr, filename, n);
continue;
}
nsCString mountPoint(mountPointPtr);
nsCString volName(volNamePtr);
RefPtr<Volume> vol = FindAddVolumeByName(volName);
vol->SetFakeVolume(mountPoint);
}
else {
ERR("Unrecognized command: '%s'", command);
}
}
}
class VolumeListCallback : public VolumeResponseCallback
{
virtual void ResponseReceived(const VolumeCommand* aCommand)
{
switch (ResponseCode()) {
case ::ResponseCode::VolumeListResult: {
// Each line will look something like:
//
// sdcard /mnt/sdcard 1
//
// So for each volume that we get back, we update any volumes that
// we have of the same name, or add new ones if they don't exist.
nsCWhitespaceTokenizer tokenizer(ResponseStr());
nsDependentCSubstring volName(tokenizer.nextToken());
RefPtr<Volume> vol = VolumeManager::FindAddVolumeByName(volName);
vol->HandleVoldResponse(ResponseCode(), tokenizer);
break;
}
case ::ResponseCode::CommandOkay: {
// We've received the list of volumes. Now read the Volume.cfg
// file to perform customizations, and then tell everybody
// that we're ready for business.
VolumeManager::InitConfig();
VolumeManager::Dump("READY");
VolumeManager::SetState(VolumeManager::VOLUMES_READY);
break;
}
}
}
};
bool
VolumeManager::OpenSocket()
{
SetState(STARTING);
if ((mSocket.rwget() = socket_local_client("vold",
ANDROID_SOCKET_NAMESPACE_RESERVED,
SOCK_STREAM)) < 0) {
ERR("Error connecting to vold: (%s) - will retry", strerror(errno));
return false;
}
// add FD_CLOEXEC flag
int flags = fcntl(mSocket.get(), F_GETFD);
if (flags == -1) {
return false;
}
flags |= FD_CLOEXEC;
if (fcntl(mSocket.get(), F_SETFD, flags) == -1) {
return false;
}
// set non-blocking
if (fcntl(mSocket.get(), F_SETFL, O_NONBLOCK) == -1) {
return false;
}
if (!MessageLoopForIO::current()->
WatchFileDescriptor(mSocket.get(),
true,
MessageLoopForIO::WATCH_READ,
&mReadWatcher,
this)) {
return false;
}
LOG("Connected to vold");
PostCommand(new VolumeListCommand(new VolumeListCallback));
return true;
}
//static
void
VolumeManager::PostCommand(VolumeCommand* aCommand)
{
if (!sVolumeManager) {
ERR("VolumeManager not initialized. Dropping command '%s'", aCommand->Data());
return;
}
aCommand->SetPending(true);
DBG("Sending command '%s'", aCommand->Data());
// vold can only process one command at a time, so add our command
// to the end of the command queue.
sVolumeManager->mCommands.push(aCommand);
if (!sVolumeManager->mCommandPending) {
// There aren't any commands currently being processed, so go
// ahead and kick this one off.
sVolumeManager->mCommandPending = true;
sVolumeManager->WriteCommandData();
}
}
/***************************************************************************
* The WriteCommandData initiates sending of a command to vold. Since
* we're running on the IOThread and not allowed to block, WriteCommandData
* will write as much data as it can, and if not all of the data can be
* written then it will setup a file descriptor watcher and
* OnFileCanWriteWithoutBlocking will call WriteCommandData to write out
* more of the command data.
*/
void
VolumeManager::WriteCommandData()
{
if (mCommands.size() == 0) {
return;
}
VolumeCommand* cmd = mCommands.front();
if (cmd->BytesRemaining() == 0) {
// All bytes have been written. We're waiting for a response.
return;
}
// There are more bytes left to write. Try to write them all.
ssize_t bytesWritten = write(mSocket.get(), cmd->Data(), cmd->BytesRemaining());
if (bytesWritten < 0) {
ERR("Failed to write %d bytes to vold socket", cmd->BytesRemaining());
Restart();
return;
}
DBG("Wrote %ld bytes (of %d)", bytesWritten, cmd->BytesRemaining());
cmd->ConsumeBytes(bytesWritten);
if (cmd->BytesRemaining() == 0) {
return;
}
// We were unable to write all of the command bytes. Setup a watcher
// so we'll get called again when we can write without blocking.
if (!MessageLoopForIO::current()->
WatchFileDescriptor(mSocket.get(),
false, // one-shot
MessageLoopForIO::WATCH_WRITE,
&mWriteWatcher,
this)) {
ERR("Failed to setup write watcher for vold socket");
Restart();
}
}
void
VolumeManager::OnLineRead(int aFd, nsDependentCSubstring& aMessage)
{
MOZ_ASSERT(aFd == mSocket.get());
char* endPtr;
int responseCode = strtol(aMessage.Data(), &endPtr, 10);
if (*endPtr == ' ') {
endPtr++;
}
// Now fish out the rest of the line after the response code
nsDependentCString responseLine(endPtr, aMessage.Length() - (endPtr - aMessage.Data()));
DBG("Rcvd: %d '%s'", responseCode, responseLine.Data());
if (responseCode >= ::ResponseCode::UnsolicitedInformational) {
// These are unsolicited broadcasts. We intercept these and process
// them ourselves
HandleBroadcast(responseCode, responseLine);
} else {
// Everything else is considered to be part of the command response.
if (mCommands.size() > 0) {
VolumeCommand* cmd = mCommands.front();
cmd->HandleResponse(responseCode, responseLine);
if (responseCode >= ::ResponseCode::CommandOkay) {
// That's a terminating response. We can remove the command.
mCommands.pop();
mCommandPending = false;
// Start the next command, if there is one.
WriteCommandData();
}
} else {
ERR("Response with no command");
}
}
}
void
VolumeManager::OnFileCanWriteWithoutBlocking(int aFd)
{
MOZ_ASSERT(aFd == mSocket.get());
WriteCommandData();
}
void
VolumeManager::HandleBroadcast(int aResponseCode, nsCString& aResponseLine)
{
// Format of the line is something like:
//
// Volume sdcard /mnt/sdcard state changed from 7 (Shared-Unmounted) to 1 (Idle-Unmounted)
//
// So we parse out the volume name and the state after the string " to "
nsCWhitespaceTokenizer tokenizer(aResponseLine);
tokenizer.nextToken(); // The word "Volume"
nsDependentCSubstring volName(tokenizer.nextToken());
RefPtr<Volume> vol = FindVolumeByName(volName);
if (!vol) {
return;
}
vol->HandleVoldResponse(aResponseCode, tokenizer);
}
void
VolumeManager::Restart()
{
mReadWatcher.StopWatchingFileDescriptor();
mWriteWatcher.StopWatchingFileDescriptor();
while (!mCommands.empty()) {
mCommands.pop();
}
mCommandPending = false;
mSocket.dispose();
Start();
}
//static
void
VolumeManager::Start()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
if (!sVolumeManager) {
return;
}
SetState(STARTING);
if (!sVolumeManager->OpenSocket()) {
// Socket open failed, try again in a second.
MessageLoopForIO::current()->
PostDelayedTask(FROM_HERE,
NewRunnableFunction(VolumeManager::Start),
1000);
}
}
void
VolumeManager::OnError()
{
Restart();
}
/***************************************************************************/
static void
InitVolumeManagerIOThread()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
MOZ_ASSERT(!sVolumeManager);
sVolumeManager = new VolumeManager();
VolumeManager::Start();
InitVolumeServiceTestIOThread();
}
static void
ShutdownVolumeManagerIOThread()
{
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
sVolumeManager = nullptr;
}
/**************************************************************************
*
* Public API
*
* Since the VolumeManager runs in IO Thread context, we need to switch
* to IOThread context before we can do anything.
*
**************************************************************************/
void
InitVolumeManager()
{
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(InitVolumeManagerIOThread));
}
void
ShutdownVolumeManager()
{
ShutdownVolumeServiceTest();
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(ShutdownVolumeManagerIOThread));
}
} // system
namespace gfx {
static StaticRefPtr<VRManagerChild> sVRManagerChildSingleton;
static StaticRefPtr<VRManagerParent> sVRManagerParentSingleton;
void ReleaseVRManagerParentSingleton() {
sVRManagerParentSingleton = nullptr;
}
VRManagerChild::VRManagerChild()
: TextureForwarder()
, mDisplaysInitialized(false)
, mMessageLoop(MessageLoop::current())
, mFrameRequestCallbackCounter(0)
, mBackend(layers::LayersBackend::LAYERS_NONE)
, mPromiseID(0)
, mVRMockDisplay(nullptr)
{
MOZ_ASSERT(NS_IsMainThread());
mStartTimeStamp = TimeStamp::Now();
}
VRManagerChild::~VRManagerChild()
{
MOZ_ASSERT(NS_IsMainThread());
}
/*static*/ void
VRManagerChild::IdentifyTextureHost(const TextureFactoryIdentifier& aIdentifier)
{
if (sVRManagerChildSingleton) {
sVRManagerChildSingleton->mBackend = aIdentifier.mParentBackend;
sVRManagerChildSingleton->mSyncObject =
layers::SyncObjectClient::CreateSyncObjectClient(aIdentifier.mSyncHandle);
}
}
layers::LayersBackend
VRManagerChild::GetBackendType() const
{
return mBackend;
}
/*static*/ VRManagerChild*
VRManagerChild::Get()
{
MOZ_ASSERT(sVRManagerChildSingleton);
return sVRManagerChildSingleton;
}
/* static */ bool
VRManagerChild::IsCreated()
{
return !!sVRManagerChildSingleton;
}
/* static */ bool
VRManagerChild::InitForContent(Endpoint<PVRManagerChild>&& aEndpoint)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!sVRManagerChildSingleton);
RefPtr<VRManagerChild> child(new VRManagerChild());
if (!aEndpoint.Bind(child)) {
NS_RUNTIMEABORT("Couldn't Open() Compositor channel.");
return false;
}
sVRManagerChildSingleton = child;
return true;
}
/* static */ bool
VRManagerChild::ReinitForContent(Endpoint<PVRManagerChild>&& aEndpoint)
{
MOZ_ASSERT(NS_IsMainThread());
ShutDown();
return InitForContent(Move(aEndpoint));
}
/*static*/ void
VRManagerChild::InitSameProcess()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!sVRManagerChildSingleton);
sVRManagerChildSingleton = new VRManagerChild();
sVRManagerParentSingleton = VRManagerParent::CreateSameProcess();
sVRManagerChildSingleton->Open(sVRManagerParentSingleton->GetIPCChannel(),
mozilla::layers::CompositorThreadHolder::Loop(),
mozilla::ipc::ChildSide);
}
/* static */ void
VRManagerChild::InitWithGPUProcess(Endpoint<PVRManagerChild>&& aEndpoint)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!sVRManagerChildSingleton);
sVRManagerChildSingleton = new VRManagerChild();
if (!aEndpoint.Bind(sVRManagerChildSingleton)) {
NS_RUNTIMEABORT("Couldn't Open() Compositor channel.");
return;
}
}
/*static*/ void
VRManagerChild::ShutDown()
{
MOZ_ASSERT(NS_IsMainThread());
if (sVRManagerChildSingleton) {
sVRManagerChildSingleton->Destroy();
sVRManagerChildSingleton = nullptr;
}
}
/*static*/ void
VRManagerChild::DeferredDestroy(RefPtr<VRManagerChild> aVRManagerChild)
{
aVRManagerChild->Close();
}
void
VRManagerChild::Destroy()
{
mTexturesWaitingRecycled.Clear();
// Keep ourselves alive until everything has been shut down
RefPtr<VRManagerChild> selfRef = this;
// The DeferredDestroyVRManager task takes ownership of
// the VRManagerChild and will release it when it runs.
MessageLoop::current()->PostTask(
NewRunnableFunction(DeferredDestroy, selfRef));
}
layers::PTextureChild*
VRManagerChild::AllocPTextureChild(const SurfaceDescriptor&,
const LayersBackend&,
const TextureFlags&,
const uint64_t&)
{
return TextureClient::CreateIPDLActor();
}
bool
VRManagerChild::DeallocPTextureChild(PTextureChild* actor)
{
return TextureClient::DestroyIPDLActor(actor);
}
PVRLayerChild*
VRManagerChild::AllocPVRLayerChild(const uint32_t& aDisplayID,
const float& aLeftEyeX,
const float& aLeftEyeY,
const float& aLeftEyeWidth,
const float& aLeftEyeHeight,
const float& aRightEyeX,
const float& aRightEyeY,
const float& aRightEyeWidth,
const float& aRightEyeHeight,
const uint32_t& aGroup)
{
return VRLayerChild::CreateIPDLActor();
}
bool
VRManagerChild::DeallocPVRLayerChild(PVRLayerChild* actor)
{
return VRLayerChild::DestroyIPDLActor(actor);
}
void
VRManagerChild::UpdateDisplayInfo(nsTArray<VRDisplayInfo>& aDisplayUpdates)
{
nsTArray<uint32_t> disconnectedDisplays;
nsTArray<uint32_t> connectedDisplays;
// Check if any displays have been disconnected
for (auto& display : mDisplays) {
bool found = false;
for (auto& displayUpdate : aDisplayUpdates) {
if (display->GetDisplayInfo().GetDisplayID() == displayUpdate.GetDisplayID()) {
found = true;
break;
}
}
if (!found) {
display->NotifyDisconnected();
disconnectedDisplays.AppendElement(display->GetDisplayInfo().GetDisplayID());
}
}
// mDisplays could be a hashed container for more scalability, but not worth
// it now as we expect < 10 entries.
nsTArray<RefPtr<VRDisplayClient>> displays;
for (VRDisplayInfo& displayUpdate : aDisplayUpdates) {
bool isNewDisplay = true;
for (auto& display : mDisplays) {
const VRDisplayInfo& prevInfo = display->GetDisplayInfo();
if (prevInfo.GetDisplayID() == displayUpdate.GetDisplayID()) {
if (displayUpdate.GetIsConnected() && !prevInfo.GetIsConnected()) {
connectedDisplays.AppendElement(displayUpdate.GetDisplayID());
}
if (!displayUpdate.GetIsConnected() && prevInfo.GetIsConnected()) {
disconnectedDisplays.AppendElement(displayUpdate.GetDisplayID());
}
display->UpdateDisplayInfo(displayUpdate);
displays.AppendElement(display);
isNewDisplay = false;
break;
}
}
if (isNewDisplay) {
displays.AppendElement(new VRDisplayClient(displayUpdate));
connectedDisplays.AppendElement(displayUpdate.GetDisplayID());
}
}
mDisplays = displays;
// We wish to fire the events only after mDisplays is updated
for (uint32_t displayID : disconnectedDisplays) {
FireDOMVRDisplayDisconnectEvent(displayID);
}
for (uint32_t displayID : connectedDisplays) {
FireDOMVRDisplayConnectEvent(displayID);
}
mDisplaysInitialized = true;
}
mozilla::ipc::IPCResult
VRManagerChild::RecvUpdateDisplayInfo(nsTArray<VRDisplayInfo>&& aDisplayUpdates)
{
UpdateDisplayInfo(aDisplayUpdates);
for (auto& windowId : mNavigatorCallbacks) {
/** We must call NotifyVRDisplaysUpdated for every
* window's Navigator in mNavigatorCallbacks to ensure that
* the promise returned by Navigator.GetVRDevices
* can resolve. This must happen even if no changes
* to VRDisplays have been detected here.
*/
nsGlobalWindow* window = nsGlobalWindow::GetInnerWindowWithId(windowId);
if (!window) {
continue;
}
dom::Navigator* nav = window->Navigator();
if (!nav) {
continue;
}
nav->NotifyVRDisplaysUpdated();
}
mNavigatorCallbacks.Clear();
return IPC_OK();
}
bool
VRManagerChild::GetVRDisplays(nsTArray<RefPtr<VRDisplayClient>>& aDisplays)
{
aDisplays = mDisplays;
return true;
}
bool
VRManagerChild::RefreshVRDisplaysWithCallback(uint64_t aWindowId)
{
bool success = SendRefreshDisplays();
if (success) {
mNavigatorCallbacks.AppendElement(aWindowId);
}
return success;
}
void
VRManagerChild::CreateVRServiceTestDisplay(const nsCString& aID, dom::Promise* aPromise)
{
SendCreateVRServiceTestDisplay(aID, mPromiseID);
mPromiseList.Put(mPromiseID, aPromise);
++mPromiseID;
}
void
VRManagerChild::CreateVRServiceTestController(const nsCString& aID, dom::Promise* aPromise)
{
SendCreateVRServiceTestController(aID, mPromiseID);
mPromiseList.Put(mPromiseID, aPromise);
++mPromiseID;
}
mozilla::ipc::IPCResult
VRManagerChild::RecvParentAsyncMessages(InfallibleTArray<AsyncParentMessageData>&& aMessages)
{
for (InfallibleTArray<AsyncParentMessageData>::index_type i = 0; i < aMessages.Length(); ++i) {
const AsyncParentMessageData& message = aMessages[i];
switch (message.type()) {
case AsyncParentMessageData::TOpNotifyNotUsed: {
const OpNotifyNotUsed& op = message.get_OpNotifyNotUsed();
NotifyNotUsed(op.TextureId(), op.fwdTransactionId());
break;
}
default:
NS_ERROR("unknown AsyncParentMessageData type");
return IPC_FAIL_NO_REASON(this);
}
}
return IPC_OK();
}
PTextureChild*
VRManagerChild::CreateTexture(const SurfaceDescriptor& aSharedData,
LayersBackend aLayersBackend,
TextureFlags aFlags,
uint64_t aSerial,
wr::MaybeExternalImageId& aExternalImageId,
nsIEventTarget* aTarget)
{
return SendPTextureConstructor(aSharedData, aLayersBackend, aFlags, aSerial);
}
void
VRManagerChild::CancelWaitForRecycle(uint64_t aTextureId)
{
RefPtr<TextureClient> client = mTexturesWaitingRecycled.Get(aTextureId);
if (!client) {
return;
}
mTexturesWaitingRecycled.Remove(aTextureId);
}
void
VRManagerChild::NotifyNotUsed(uint64_t aTextureId, uint64_t aFwdTransactionId)
{
RefPtr<TextureClient> client = mTexturesWaitingRecycled.Get(aTextureId);
if (!client) {
return;
}
mTexturesWaitingRecycled.Remove(aTextureId);
}
bool
VRManagerChild::AllocShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
return PVRManagerChild::AllocShmem(aSize, aType, aShmem);
}
bool
VRManagerChild::AllocUnsafeShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
return PVRManagerChild::AllocUnsafeShmem(aSize, aType, aShmem);
}
bool
VRManagerChild::DeallocShmem(ipc::Shmem& aShmem)
{
return PVRManagerChild::DeallocShmem(aShmem);
}
PVRLayerChild*
VRManagerChild::CreateVRLayer(uint32_t aDisplayID,
const Rect& aLeftEyeRect,
const Rect& aRightEyeRect,
nsIEventTarget* aTarget,
uint32_t aGroup)
{
PVRLayerChild* vrLayerChild = AllocPVRLayerChild(aDisplayID, aLeftEyeRect.x,
aLeftEyeRect.y, aLeftEyeRect.width,
aLeftEyeRect.height, aRightEyeRect.x,
aRightEyeRect.y, aRightEyeRect.width,
aRightEyeRect.height,
aGroup);
// Do the DOM labeling.
if (aTarget) {
SetEventTargetForActor(vrLayerChild, aTarget);
MOZ_ASSERT(vrLayerChild->GetActorEventTarget());
}
return SendPVRLayerConstructor(vrLayerChild, aDisplayID, aLeftEyeRect.x,
aLeftEyeRect.y, aLeftEyeRect.width,
aLeftEyeRect.height, aRightEyeRect.x,
aRightEyeRect.y, aRightEyeRect.width,
aRightEyeRect.height,
aGroup);
}
// XXX TODO - VRManagerChild::FrameRequest is the same as nsIDocument::FrameRequest, should we consolodate these?
struct VRManagerChild::FrameRequest
{
FrameRequest(mozilla::dom::FrameRequestCallback& aCallback,
int32_t aHandle) :
mCallback(&aCallback),
mHandle(aHandle)
{}
// Conversion operator so that we can append these to a
// FrameRequestCallbackList
operator const RefPtr<mozilla::dom::FrameRequestCallback>& () const {
return mCallback;
}
// Comparator operators to allow RemoveElementSorted with an
// integer argument on arrays of FrameRequest
bool operator==(int32_t aHandle) const {
return mHandle == aHandle;
}
bool operator<(int32_t aHandle) const {
return mHandle < aHandle;
}
RefPtr<mozilla::dom::FrameRequestCallback> mCallback;
int32_t mHandle;
};
nsresult
VRManagerChild::ScheduleFrameRequestCallback(mozilla::dom::FrameRequestCallback& aCallback,
int32_t *aHandle)
{
if (mFrameRequestCallbackCounter == INT32_MAX) {
// Can't increment without overflowing; bail out
return NS_ERROR_NOT_AVAILABLE;
}
int32_t newHandle = ++mFrameRequestCallbackCounter;
DebugOnly<FrameRequest*> request =
mFrameRequestCallbacks.AppendElement(FrameRequest(aCallback, newHandle));
NS_ASSERTION(request, "This is supposed to be infallible!");
*aHandle = newHandle;
return NS_OK;
}
void
VRManagerChild::CancelFrameRequestCallback(int32_t aHandle)
{
// mFrameRequestCallbacks is stored sorted by handle
mFrameRequestCallbacks.RemoveElementSorted(aHandle);
}
mozilla::ipc::IPCResult
VRManagerChild::RecvGamepadUpdate(const GamepadChangeEvent& aGamepadEvent)
{
// VRManagerChild could be at other processes, but GamepadManager
// only exists at the content process or the same process
// in non-e10s mode.
MOZ_ASSERT(XRE_IsContentProcess() || IsSameProcess());
RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
if (gamepadManager) {
gamepadManager->Update(aGamepadEvent);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
VRManagerChild::RecvReplyCreateVRServiceTestDisplay(const nsCString& aID,
const uint32_t& aPromiseID,
const uint32_t& aDeviceID)
{
RefPtr<dom::Promise> p;
if (!mPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
// We only allow one VRMockDisplay in VR tests.
if (!mVRMockDisplay) {
mVRMockDisplay = new VRMockDisplay(aID, aDeviceID);
}
p->MaybeResolve(mVRMockDisplay);
mPromiseList.Remove(aPromiseID);
return IPC_OK();
}
mozilla::ipc::IPCResult
VRManagerChild::RecvReplyCreateVRServiceTestController(const nsCString& aID,
const uint32_t& aPromiseID,
const uint32_t& aDeviceID)
{
RefPtr<dom::Promise> p;
if (!mPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
p->MaybeResolve(new VRMockController(aID, aDeviceID));
mPromiseList.Remove(aPromiseID);
return IPC_OK();
}
void
VRManagerChild::RunFrameRequestCallbacks()
{
TimeStamp nowTime = TimeStamp::Now();
mozilla::TimeDuration duration = nowTime - mStartTimeStamp;
DOMHighResTimeStamp timeStamp = duration.ToMilliseconds();
nsTArray<FrameRequest> callbacks;
callbacks.AppendElements(mFrameRequestCallbacks);
mFrameRequestCallbacks.Clear();
for (auto& callback : callbacks) {
callback.mCallback->Call(timeStamp);
}
}
void
VRManagerChild::FireDOMVRDisplayMountedEvent(uint32_t aDisplayID)
{
nsContentUtils::AddScriptRunner(NewRunnableMethod<uint32_t>(
"gfx::VRManagerChild::FireDOMVRDisplayMountedEventInternal",
this,
&VRManagerChild::FireDOMVRDisplayMountedEventInternal,
aDisplayID));
}
void
VRManagerChild::FireDOMVRDisplayUnmountedEvent(uint32_t aDisplayID)
{
nsContentUtils::AddScriptRunner(NewRunnableMethod<uint32_t>(
"gfx::VRManagerChild::FireDOMVRDisplayUnmountedEventInternal",
this,
&VRManagerChild::FireDOMVRDisplayUnmountedEventInternal,
aDisplayID));
}
void
VRManagerChild::FireDOMVRDisplayConnectEvent(uint32_t aDisplayID)
{
nsContentUtils::AddScriptRunner(NewRunnableMethod<uint32_t>(
"gfx::VRManagerChild::FireDOMVRDisplayConnectEventInternal",
this,
&VRManagerChild::FireDOMVRDisplayConnectEventInternal,
aDisplayID));
}
void
VRManagerChild::FireDOMVRDisplayDisconnectEvent(uint32_t aDisplayID)
{
nsContentUtils::AddScriptRunner(NewRunnableMethod<uint32_t>(
"gfx::VRManagerChild::FireDOMVRDisplayDisconnectEventInternal",
this,
&VRManagerChild::FireDOMVRDisplayDisconnectEventInternal,
aDisplayID));
}
void
VRManagerChild::FireDOMVRDisplayPresentChangeEvent(uint32_t aDisplayID)
{
nsContentUtils::AddScriptRunner(NewRunnableMethod<uint32_t>(
"gfx::VRManagerChild::FireDOMVRDisplayPresentChangeEventInternal",
this,
&VRManagerChild::FireDOMVRDisplayPresentChangeEventInternal,
aDisplayID));
}
void
VRManagerChild::FireDOMVRDisplayMountedEventInternal(uint32_t aDisplayID)
{
// Iterate over a copy of mListeners, as dispatched events may modify it.
nsTArray<RefPtr<dom::VREventObserver>> listeners;
listeners = mListeners;
for (auto& listener : listeners) {
listener->NotifyVRDisplayMounted(aDisplayID);
}
}
void
VRManagerChild::FireDOMVRDisplayUnmountedEventInternal(uint32_t aDisplayID)
{
// Iterate over a copy of mListeners, as dispatched events may modify it.
nsTArray<RefPtr<dom::VREventObserver>> listeners;
listeners = mListeners;
for (auto& listener : listeners) {
listener->NotifyVRDisplayUnmounted(aDisplayID);
}
}
void
VRManagerChild::FireDOMVRDisplayConnectEventInternal(uint32_t aDisplayID)
{
// Iterate over a copy of mListeners, as dispatched events may modify it.
nsTArray<RefPtr<dom::VREventObserver>> listeners;
listeners = mListeners;
for (auto& listener : listeners) {
listener->NotifyVRDisplayConnect(aDisplayID);
}
}
void
VRManagerChild::FireDOMVRDisplayDisconnectEventInternal(uint32_t aDisplayID)
{
// Iterate over a copy of mListeners, as dispatched events may modify it.
nsTArray<RefPtr<dom::VREventObserver>> listeners;
listeners = mListeners;
for (auto& listener : listeners) {
listener->NotifyVRDisplayDisconnect(aDisplayID);
}
}
void
VRManagerChild::FireDOMVRDisplayPresentChangeEventInternal(uint32_t aDisplayID)
{
// Iterate over a copy of mListeners, as dispatched events may modify it.
nsTArray<RefPtr<dom::VREventObserver>> listeners;
listeners = mListeners;
for (auto& listener : listeners) {
listener->NotifyVRDisplayPresentChange(aDisplayID);
}
}
void
VRManagerChild::AddListener(dom::VREventObserver* aObserver)
{
MOZ_ASSERT(aObserver);
if (mListeners.IndexOf(aObserver) != kNoIndex) {
return; // already exists
}
mListeners.AppendElement(aObserver);
if (mListeners.Length() == 1) {
Unused << SendSetHaveEventListener(true);
}
}
void
VRManagerChild::RemoveListener(dom::VREventObserver* aObserver)
{
MOZ_ASSERT(aObserver);
mListeners.RemoveElement(aObserver);
if (mListeners.IsEmpty()) {
Unused << SendSetHaveEventListener(false);
}
}
void
VRManagerChild::HandleFatalError(const char* aName, const char* aMsg) const
{
dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aName, aMsg, OtherPid());
}
void
VRManagerChild::AddPromise(const uint32_t& aID, dom::Promise* aPromise)
{
MOZ_ASSERT(!mGamepadPromiseList.Get(aID, nullptr));
mGamepadPromiseList.Put(aID, aPromise);
}
mozilla::ipc::IPCResult
VRManagerChild::RecvReplyGamepadVibrateHaptic(const uint32_t& aPromiseID)
{
// VRManagerChild could be at other processes, but GamepadManager
// only exists at the content process or the same process
// in non-e10s mode.
MOZ_ASSERT(XRE_IsContentProcess() || IsSameProcess());
RefPtr<dom::Promise> p;
if (!mGamepadPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
p->MaybeResolve(true);
mGamepadPromiseList.Remove(aPromiseID);
return IPC_OK();
}
mozilla::ipc::IPCResult
VRManagerChild::RecvDispatchSubmitFrameResult(const uint32_t& aDisplayID,
const VRSubmitFrameResultInfo& aResult)
{
for (auto& display : mDisplays) {
if (display->GetDisplayInfo().GetDisplayID() == aDisplayID) {
display->UpdateSubmitFrameResult(aResult);
}
}
return IPC_OK();
}
} // namespace gfx
namespace layers {
static StaticRefPtr<CompositorThreadHolder> sCompositorThreadHolder;
static bool sFinishedCompositorShutDown = false;
// See ImageBridgeChild.cpp
void ReleaseImageBridgeParentSingleton();
CompositorThreadHolder* GetCompositorThreadHolder()
{
return sCompositorThreadHolder;
}
base::Thread*
CompositorThread()
{
return sCompositorThreadHolder
? sCompositorThreadHolder->GetCompositorThread()
: nullptr;
}
/* static */ MessageLoop*
CompositorThreadHolder::Loop()
{
return CompositorThread() ? CompositorThread()->message_loop() : nullptr;
}
CompositorThreadHolder*
CompositorThreadHolder::GetSingleton()
{
return sCompositorThreadHolder;
}
CompositorThreadHolder::CompositorThreadHolder()
: mCompositorThread(CreateCompositorThread())
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_COUNT_CTOR(CompositorThreadHolder);
}
CompositorThreadHolder::~CompositorThreadHolder()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_COUNT_DTOR(CompositorThreadHolder);
DestroyCompositorThread(mCompositorThread);
}
/* static */ void
CompositorThreadHolder::DestroyCompositorThread(base::Thread* aCompositorThread)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!sCompositorThreadHolder, "We shouldn't be destroying the compositor thread yet.");
CompositorBridgeParent::Shutdown();
delete aCompositorThread;
sFinishedCompositorShutDown = true;
}
/* static */ base::Thread*
CompositorThreadHolder::CreateCompositorThread()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!sCompositorThreadHolder, "The compositor thread has already been started!");
base::Thread* compositorThread = new base::Thread("Compositor");
base::Thread::Options options;
/* Timeout values are powers-of-two to enable us get better data.
128ms is chosen for transient hangs because 8Hz should be the minimally
acceptable goal for Compositor responsiveness (normal goal is 60Hz). */
options.transient_hang_timeout = 128; // milliseconds
/* 2048ms is chosen for permanent hangs because it's longer than most
* Compositor hangs seen in the wild, but is short enough to not miss getting
* native hang stacks. */
options.permanent_hang_timeout = 2048; // milliseconds
#if defined(_WIN32)
/* With d3d9 the compositor thread creates native ui, see DeviceManagerD3D9. As
* such the thread is a gui thread, and must process a windows message queue or
* risk deadlocks. Chromium message loop TYPE_UI does exactly what we need. */
options.message_loop_type = MessageLoop::TYPE_UI;
#endif
if (!compositorThread->StartWithOptions(options)) {
delete compositorThread;
return nullptr;
}
CompositorBridgeParent::Setup();
return compositorThread;
}
void
CompositorThreadHolder::Start()
{
MOZ_ASSERT(NS_IsMainThread(), "Should be on the main Thread!");
MOZ_ASSERT(!sCompositorThreadHolder, "The compositor thread has already been started!");
sCompositorThreadHolder = new CompositorThreadHolder();
}
void
CompositorThreadHolder::Shutdown()
{
MOZ_ASSERT(NS_IsMainThread(), "Should be on the main Thread!");
MOZ_ASSERT(sCompositorThreadHolder, "The compositor thread has already been shut down!");
ReleaseImageBridgeParentSingleton();
gfx::ReleaseVRManagerParentSingleton();
MediaSystemResourceService::Shutdown();
sCompositorThreadHolder = nullptr;
// No locking is needed around sFinishedCompositorShutDown because it is only
// ever accessed on the main thread.
while (!sFinishedCompositorShutDown) {
NS_ProcessNextEvent(nullptr, true);
}
CompositorBridgeParent::FinishShutdown();
}
/* static */ bool
CompositorThreadHolder::IsInCompositorThread()
{
return CompositorThread() &&
CompositorThread()->thread_id() == PlatformThread::CurrentId();
}
} // namespace mozilla