C++ nsCOMPtr::Dispatch方法代码示例

bool
GMPRemoveTest::CreateVideoDecoder(nsCString aNodeId)
{
  GMPVideoHost* host;
  GMPVideoDecoderProxy* decoder = nullptr;

  mGMPThread->Dispatch(NewNonOwningRunnableMethod<nsCString,
                                                  GMPVideoDecoderProxy**,
                                                  GMPVideoHost**>(
                         "GMPRemoveTest::gmp_GetVideoDecoder",
                         this,
                         &GMPRemoveTest::gmp_GetVideoDecoder,
                         aNodeId,
                         &decoder,
                         &host),
                       NS_DISPATCH_NORMAL);

  mTestMonitor.AwaitFinished();

  if (!decoder) {
    return false;
  }

  GMPVideoCodec codec;
  memset(&codec, 0, sizeof(codec));
  codec.mGMPApiVersion = 33;

  nsTArray<uint8_t> empty;
  mGMPThread->Dispatch(
    NewNonOwningRunnableMethod<const GMPVideoCodec&,
                               const nsTArray<uint8_t>&,
                               GMPVideoDecoderCallbackProxy*,
                               int32_t>("GMPVideoDecoderProxy::InitDecode",
                                        decoder,
                                        &GMPVideoDecoderProxy::InitDecode,
                                        codec,
                                        empty,
                                        this,
                                        1 /* core count */),
    NS_DISPATCH_SYNC);

  if (mDecoder) {
    CloseVideoDecoder();
  }

  mDecoder = decoder;
  mHost = host;

  return true;
}

void AudioSendAndReceive::Start()
 {
    
    eventStartCapture = new AudioStartCaptureEvent(this);
    mAudioCaptureThread->Dispatch(eventStartCapture,0);

    eventStartRender = new AudioStartRenderEvent(this);
    mAudioRenderThread->Dispatch(eventStartRender,0);

    //let's wait till test ends
    while(!amIDone)
    {
      std::cout << " Waating for the events to end " << std::endl;
      sleep(2);
    }
 }

    void Dispatch()
    {
        MOZ_ASSERT(NS_IsMainThread());

        mEventTarget = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
        NS_ENSURE_TRUE_VOID(mEventTarget);

        nsresult rv = mEventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
        NS_ENSURE_SUCCESS_VOID(rv);
    }

GMPErr
GMPRemoveTest::Decode()
{
  mGMPThread->Dispatch(
    NS_NewNonOwningRunnableMethod(this, &GMPRemoveTest::gmp_Decode),
    NS_DISPATCH_NORMAL);

  mTestMonitor.AwaitFinished();
  return mDecodeResult;
}

void
nsFileCopyEvent::DoCopy()
{
  // We'll copy in chunks this large by default.  This size affects how
  // frequently we'll check for interrupts.
  const int32_t chunk = nsIOService::gDefaultSegmentSize * nsIOService::gDefaultSegmentCount;

  nsresult rv = NS_OK;

  int64_t len = mLen, progress = 0;
  while (len) {
    // If we've been interrupted, then stop copying.
    rv = mInterruptStatus;
    if (NS_FAILED(rv))
      break;

    int32_t num = std::min((int32_t) len, chunk);

    uint32_t result;
    rv = mSource->ReadSegments(NS_CopySegmentToStream, mDest, num, &result);
    if (NS_FAILED(rv))
      break;
    if (result != (uint32_t) num) {
      rv = NS_ERROR_FILE_DISK_FULL;  // stopped prematurely (out of disk space)
      break;
    }

    // Dispatch progress notification
    if (mSink) {
      progress += num;
      mSink->OnTransportStatus(nullptr, NS_NET_STATUS_WRITING, progress,
                               mLen);
    }
                               
    len -= num;
  }

  if (NS_FAILED(rv))
    mStatus = rv;

  // Close the output stream before notifying our callback so that others may
  // freely "play" with the file.
  mDest->Close();

  // Notify completion
  if (mCallback) {
    mCallbackTarget->Dispatch(mCallback, NS_DISPATCH_NORMAL);

    // Release the callback on the target thread to avoid destroying stuff on
    // the wrong thread.
    nsIRunnable *doomed = nullptr;
    mCallback.swap(doomed);
    NS_ProxyRelease(mCallbackTarget, doomed);
  }
}

static void
PipelineDetachTransport_s(RefPtr<MediaPipeline> pipeline,
                          nsCOMPtr<nsIThread> mainThread)
{
  pipeline->DetachTransport_s();
  mainThread->Dispatch(
      // Make sure we let go of our reference before dispatching
      // If the dispatch fails, well, we're hosed anyway.
      WrapRunnableNM(PipelineReleaseRef_m, pipeline.forget()),
      NS_DISPATCH_NORMAL);
}

nsresult
Logger::Shutdown()
{
  MOZ_ASSERT(NS_IsMainThread());
  nsresult rv = mThread->Dispatch(NewNonOwningRunnableMethod(this,
                                                             &Logger::CloseFile),
                                  NS_DISPATCH_NORMAL);
  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Dispatch failed");

  rv = mThread->Shutdown();
  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Shutdown failed");
  return NS_OK;
}

static void
EncodedCallback(GMPVideoEncoderCallbackProxy* aCallback,
                GMPVideoEncodedFrame* aEncodedFrame,
                nsTArray<uint8_t>* aCodecSpecificInfo,
                nsCOMPtr<nsIThread> aThread)
{
  aCallback->Encoded(aEncodedFrame, *aCodecSpecificInfo);
  delete aCodecSpecificInfo;
  // Ugh.  Must destroy the frame on GMPThread.
  // XXX add locks to the ShmemManager instead?
  aThread->Dispatch(WrapRunnable(aEncodedFrame,
                                &GMPVideoEncodedFrame::Destroy),
                   NS_DISPATCH_NORMAL);
}

nsresult
nsInputStreamTee::TeeSegment(const char* aBuf, uint32_t aCount)
{
  if (!mSink) {
    return NS_OK;  // nothing to do
  }
  if (mLock) { // asynchronous case
    NS_ASSERTION(mEventTarget, "mEventTarget is null, mLock is not null.");
    if (!SinkIsValid()) {
      return NS_OK; // nothing to do
    }
    nsCOMPtr<nsIRunnable> event =
      new nsInputStreamTeeWriteEvent(aBuf, aCount, mSink, this);
    LOG(("nsInputStreamTee::TeeSegment [%p] dispatching write %u bytes\n",
         this, aCount));
    return mEventTarget->Dispatch(event, NS_DISPATCH_NORMAL);
  } else { // synchronous case
    NS_ASSERTION(!mEventTarget, "mEventTarget is not null, mLock is null.");
    nsresult rv;
    uint32_t totalBytesWritten = 0;
    while (aCount) {
      uint32_t bytesWritten = 0;
      rv = mSink->Write(aBuf + totalBytesWritten, aCount, &bytesWritten);
      if (NS_FAILED(rv)) {
        // ok, this is not a fatal error... just drop our reference to mSink
        // and continue on as if nothing happened.
        NS_WARNING("Write failed (non-fatal)");
        // catch possible misuse of the input stream tee
        NS_ASSERTION(rv != NS_BASE_STREAM_WOULD_BLOCK, "sink must be a blocking stream");
        mSink = 0;
        break;
      }
      totalBytesWritten += bytesWritten;
      NS_ASSERTION(bytesWritten <= aCount, "wrote too much");
      aCount -= bytesWritten;
    }
    return NS_OK;
  }
}

void
Logger::LogQI(HRESULT aResult, IUnknown* aTarget, REFIID aIid, IUnknown* aInterface)
{
  if (FAILED(aResult)) {
    return;
  }
  double elapsed = GetElapsedTime();

  nsPrintfCString line("%fus\t0x%0p\tIUnknown::QueryInterface\t([in] ", elapsed,
                       aTarget);

  WCHAR buf[39] = {0};
  if (StringFromGUID2(aIid, buf, mozilla::ArrayLength(buf))) {
    line.AppendPrintf("%S", buf);
  } else {
    line.AppendLiteral("(IID Conversion Failed)");
  }
  line.AppendPrintf(", [out] 0x%p)\t0x%08X\n", aInterface, aResult);

  MutexAutoLock lock(mMutex);
  mEntries.AppendElement(line);
  mThread->Dispatch(NewNonOwningRunnableMethod(this, &Logger::Flush),
                    NS_DISPATCH_NORMAL);
}

NS_IMETHODIMP
nsTransportEventSinkProxy::OnTransportStatus(nsITransport *transport,
                                             nsresult status,
                                             PRUint64 progress,
                                             PRUint64 progressMax)
{
    nsresult rv = NS_OK;
    nsRefPtr<nsTransportStatusEvent> event;
    {
        MutexAutoLock lock(mLock);

        // try to coalesce events! ;-)
        if (mLastEvent && (mCoalesceAll || mLastEvent->mStatus == status)) {
            mLastEvent->mStatus = status;
            mLastEvent->mProgress = progress;
            mLastEvent->mProgressMax = progressMax;
        }
        else {
            event = new nsTransportStatusEvent(this, transport, status,
                                               progress, progressMax);
            if (!event)
                rv = NS_ERROR_OUT_OF_MEMORY;
            mLastEvent = event;  // weak ref
        }
    }
    if (event) {
        rv = mTarget->Dispatch(event, NS_DISPATCH_NORMAL);
        if (NS_FAILED(rv)) {
            NS_WARNING("unable to post transport status event");

            MutexAutoLock lock(mLock); // cleanup.. don't reference anymore!
            mLastEvent = nsnull;
        }
    }
    return rv;
}

NS_IMETHODIMP
ParentRunnable::Run()
{
  nsresult rv;

  // All success/failure paths must eventually call Finish() to avoid leaving
  // the parser hanging.
  switch (mState) {
    case eInitial: {
      MOZ_ASSERT(NS_IsMainThread());

      rv = InitOnMainThread();
      if (NS_FAILED(rv)) {
        FailOnNonOwningThread();
        return NS_OK;
      }

      mState = eWaitingToFinishInit;
      MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));

      return NS_OK;
    }

    case eWaitingToFinishInit: {
      AssertIsOnOwningThread();

      if (QuotaManager::IsShuttingDown()) {
        Fail();
        return NS_OK;
      }

      if (QuotaManager::Get()) {
        OpenDirectory();
        return NS_OK;
      }

      mState = eWaitingToOpenDirectory;
      QuotaManager::GetOrCreate(this);

      return NS_OK;
    }

    case eWaitingToOpenDirectory: {
      AssertIsOnOwningThread();

      if (NS_WARN_IF(!QuotaManager::Get())) {
        Fail();
        return NS_OK;
      }

      OpenDirectory();
      return NS_OK;
    }

    case eReadyToReadMetadata: {
      AssertIsOnIOThread();

      rv = ReadMetadata();
      if (NS_FAILED(rv)) {
        FailOnNonOwningThread();
        return NS_OK;
      }

      if (mOpenMode == eOpenForRead) {
        mState = eSendingMetadataForRead;
        MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));

        return NS_OK;
      }

      rv = OpenCacheFileForWrite();
      if (NS_FAILED(rv)) {
        FailOnNonOwningThread();
        return NS_OK;
      }

      mState = eSendingCacheFile;
      MOZ_ALWAYS_SUCCEEDS(mOwningEventTarget->Dispatch(this, NS_DISPATCH_NORMAL));
      return NS_OK;
    }

    case eSendingMetadataForRead: {
      AssertIsOnOwningThread();
      MOZ_ASSERT(mOpenMode == eOpenForRead);

      mState = eWaitingToOpenCacheFileForRead;

      // Metadata is now open.
      if (!SendOnOpenMetadataForRead(mMetadata)) {
        Fail();
        return NS_OK;
      }

      return NS_OK;
    }

    case eReadyToOpenCacheFileForRead: {
      AssertIsOnIOThread();
      MOZ_ASSERT(mOpenMode == eOpenForRead);

//.........这里部分代码省略.........

/*
 * CallStateChanged will be called whenever call status is changed, and it
 * also means we need to notify HS about the change. For more information, 
 * please refer to 4.13 ~ 4.15 in Bluetooth hands-free profile 1.6.
 */
void
BluetoothHfpManager::CallStateChanged(int aCallIndex, int aCallState,
                                      const char* aNumber, bool aIsActive)
{
  nsRefPtr<nsRunnable> sendRingTask;

  switch (aCallState) {
    case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
      // Send "CallSetup = 1"
      SendLine("+CIEV: 5,1");

      // Start sending RING indicator to HF
      sStopSendingRingFlag = false;
      sendRingTask = new SendRingIndicatorTask();

      if (NS_FAILED(sHfpCommandThread->Dispatch(sendRingTask, NS_DISPATCH_NORMAL))) {
        NS_WARNING("Cannot dispatch ring task!");
        return;
      };
      break;
    case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
      // Send "CallSetup = 2"
      SendLine("+CIEV: 5,2");
      break;
    case nsIRadioInterfaceLayer::CALL_STATE_ALERTING:
      // Send "CallSetup = 3"
      if (mCurrentCallIndex == nsIRadioInterfaceLayer::CALL_STATE_DIALING) {
        SendLine("+CIEV: 5,3");
      } else {
#ifdef DEBUG
        NS_WARNING("Not handling state changed");
#endif
      }
      break;
    case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
      switch (mCurrentCallState) {
        case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
          sStopSendingRingFlag = true;
          // Continue executing, no break
        case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
          // Send "Call = 1, CallSetup = 0"
          SendLine("+CIEV: 4,1");
          SendLine("+CIEV: 5,0");
          break;
        default:
#ifdef DEBUG
          NS_WARNING("Not handling state changed");
#endif
          break;
      }

      break;
    case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED:
      switch (mCurrentCallState) {
        case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
          sStopSendingRingFlag = true;
          // Continue executing, no break
        case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
        case nsIRadioInterfaceLayer::CALL_STATE_ALERTING:
          // Send "CallSetup = 0"
          SendLine("+CIEV: 5,0");
          break;
        case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
          // Send "Call = 0"
          SendLine("+CIEV: 4,0");
          break;
        default:
#ifdef DEBUG
          NS_WARNING("Not handling state changed");
#endif
          break;
      }
      break;

    default:
#ifdef DEBUG
      NS_WARNING("Not handling state changed");
#endif
      break;
  }

  mCurrentCallIndex = aCallIndex;
  mCurrentCallState = aCallState;
}