C++ IBackgroundCopyJob::Resume方法代码示例

// @pymethod |PyIBackgroundCopyJob|Resume|Description of Resume.
PyObject *PyIBackgroundCopyJob::Resume(PyObject *self, PyObject *args)
{
	IBackgroundCopyJob *pIBCJ = GetI(self);
	if ( pIBCJ == NULL )
		return NULL;
	if ( !PyArg_ParseTuple(args, ":Resume") )
		return NULL;
	HRESULT hr;
	PY_INTERFACE_PRECALL;
	hr = pIBCJ->Resume( );
	PY_INTERFACE_POSTCALL;
	if ( FAILED(hr) )
		return PyCom_BuildPyException(hr, pIBCJ, IID_IBackgroundCopyJob );
	return PyInt_FromLong(hr);
}

/*
 * Main program entry point
 */
int _tmain(int argc, _TCHAR* argv[])
{
    HRESULT hr;
    IBackgroundCopyManager *Manager;

    // Get the BITS Background Copy Manager 
    hr = GetBackgroundCopyManager(&Manager);
    if( SUCCEEDED( hr ) )
    {
        IBackgroundCopyJob *Job;

        // Create a new download job
        hr = CreateDownloadJob( L"MyJob", Manager, &Job );
        if( SUCCEEDED(hr) )
        {
            // Add the files to the job
            for( int i=0; i<ARRAY_LENGTH(FileList); ++i)
            {
                hr = Job->AddFile(
                            FileList[i].RemoteFile,
                            FileList[i].LocalFile
                            );

                if( FAILED(hr) )
                {
                    printf(
                        "Error: Unable to add remote file '%ws' to the download job (error %08X).\n",
                        FileList[i].RemoteFile,
                        hr
                        );
                }
                else
                {
                    printf( 
                        "Downloading remote file '%ws' to local file '%ws'\n",
                        FileList[i].RemoteFile,
                        FileList[i].LocalFile
                        );
                }
            }


            // Start the job and display its progress
            hr = Job->Resume();
            if( FAILED(hr) )
            {
                printf( "ERROR: Unable to start the BITS download job (error code %08X).\n", hr );
            }
            else
            {
                MonitorJobProgress( Job );
            }

            // Release the BITS IBackgroundCopyJob interface
            Job->Release();
            Job = NULL;
        }

        // Release the IBackgroundCopyManager interface
        Manager->Release();
        Manager = NULL;
    }

    return 0;
}

VOID BitTransfer(PWCHAR pSource, PWCHAR pDest)
{
	IBackgroundCopyManager* g_XferManager = NULL;  
	HRESULT hr = S_OK;
	HANDLE hTimer = NULL;

	//hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
	if (SUCCEEDED(hr))
	{
		//MessageBox(NULL, L"HRESULT succeeded", L"BUBU", 0);
		hr = CoCreateInstance(__uuidof(BackgroundCopyManager), NULL,
			CLSCTX_LOCAL_SERVER,
			__uuidof(IBackgroundCopyManager),
			(void**) &g_XferManager);
		if (SUCCEEDED(hr))
		{
			//MessageBox(NULL, L"Connected to the BITS service", L"BUBU", 0);
		}
		else 
			return;
	}
	else
		return;

	GUID JobId;
	IBackgroundCopyJob* pJob = NULL;
	hr = g_XferManager->CreateJob(L"WindowsUpdateReaver", BG_JOB_TYPE_DOWNLOAD, &JobId, &pJob);
	if (SUCCEEDED(hr))
	{
		//MessageBox(NULL, L"Job created", L"BUBU", 0);
		hr = pJob->AddFile(pSource, pDest);
		
		if (SUCCEEDED(hr))
		{
			//MessageBox(NULL, L"ile added to job", L"BUBU", 0);
		}
		else
			goto cleanup;
	}
	else
		return;

	HRESULT Resume();
	//MessageBox(NULL, L"Started", L"BUBU", 0);

	BG_JOB_STATE State;
	//HANDLE hTimer = NULL;
	LARGE_INTEGER liDueTime;

	liDueTime.QuadPart = -10000000;  //Poll every 1 second
	hTimer = CreateWaitableTimer(NULL, FALSE, L"WindowsUpdateTimer");
	SetWaitableTimer(hTimer, &liDueTime, 1000, NULL, NULL, 0);

	do
	{
		WaitForSingleObject(hTimer, INFINITE);

		//Use JobStates[State] to set the window text in a user interface.
		hr = pJob->GetState(&State);
		if (FAILED(hr))
		{
			goto cleanup;
			//Handle error
			//MessageBox(NULL, L"FAIL", L"BUBU", 0);
		}

		if (BG_JOB_STATE_TRANSFERRED == State){
			//Call pJob->Complete(); to acknowledge that the transfer is complete
			//and make the file available to the client.
			HRESULT Complete();
			//MessageBox(NULL, L"Job completed", L"BUBU", 0);
		}
		else if (BG_JOB_STATE_ERROR == State || BG_JOB_STATE_TRANSIENT_ERROR == State){
			//Call pJob->GetError(&pError); to retrieve an IBackgroundCopyError interface 
			//pointer which you use to determine the cause of the error.
			//printf("ERROR!\n");
		}
		else if (BG_JOB_STATE_TRANSFERRING == State){
			//Call pJob->GetProgress(&Progress); to determine the number of bytes 
			//and files transferred.
			//MessageBox(NULL, L"Transferring", L"BUBU", 0);
		}
		else if(BG_JOB_STATE_QUEUED == State){
			//MessageBox(NULL, L"QUEUED", L"BUBU", 0);
		}
		else if(BG_JOB_STATE_CONNECTING == State){
			//MessageBox(NULL, L"CONNECTING", L"BUBU", 0);
		}
		else if(BG_JOB_STATE_SUSPENDED == State){
			//MessageBox(NULL, L"BG_JOB_STATE_SUSPENDED", L"BUBU", 0);
			HRESULT Cancel();
			pJob->Resume();
		}
		else if(BG_JOB_STATE_TRANSIENT_ERROR == State){
			//MessageBox(NULL, L"BG_JOB_STATE_TRANSIENT_ERROR", L"BUBU", 0);
		}
		else if(BG_JOB_STATE_ACKNOWLEDGED == State){
			//MessageBox(NULL, L"BG_JOB_STATE_ACKNOWLEDGED", L"BUBU", 0);
		}
		else if(BG_JOB_STATE_CANCELLED == State){
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    {
        wprintf(L"CoInitializeEx Failed. Error:0x%x",hr);
        goto done;
    }

	// Create a Job
    wprintf(L"Creating Job...\n");
    hr = pQueueMgr->CreateJob(L"P2PSample",
         BG_JOB_TYPE_DOWNLOAD,
         &guidJob,
         &pJob);
	
    // Free Resources
    pQueueMgr->Release();

	if(FAILED(hr))
    {   
        wprintf(L"Create Job failed with error: %x\n",hr);
    	goto done;
    }
    
    // Set the File Completed Call
    pNotify = new CNotifyInterface();
    if (pNotify)
    {
        hr = pJob->SetNotifyInterface(pNotify);
        if (SUCCEEDED(hr))
        {
            hr = pJob->SetNotifyFlags(BG_NOTIFY_JOB_TRANSFERRED | 
                                BG_NOTIFY_JOB_ERROR);
        }

        // Free resouces
        pNotify->Release();
        pNotify = NULL;

        if (FAILED(hr))
        {
            wprintf(L"Unable to register callbacks\nError: %x\n",hr);
            wprintf(L"Cancelling job\n");
            goto cancel;
        }
    }
    else
    {
        wprintf(L"Could not create the Notification Interface\n");
        wprintf(L"Cancelling job\n");
        goto cancel;
    }
	// Add a File
	// Replace parameters with variables that contain valid paths.
    wprintf(L"Adding File to Job\n");
	hr = pJob->AddFile(argv[1], argv[2]);

    if(FAILED(hr))
    {   
        wprintf(L"Add File failed with error: %x\n",hr);
    	goto cancel;
    }

	//Resume the job
    wprintf(L"Resuming Job...\n");
	hr = pJob->Resume();
	if (FAILED(hr))
	{
		// Resume Failed
        wprintf(L"Resume failed with error: %x\n",hr);
        wprintf(L"Cancelling Job\n");
		goto cancel;
	}    

    // Wait for QuitMessage from CallBack
    DWORD dwLimit = GetTickCount() + (15 * 60 * 1000);  // set 15 minute limit
    while (dwLimit > GetTickCount())
    {
         MSG msg;

        while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) 
        { 
            // If it is a quit message, exit.
            if (msg.message == WM_QUIT) 
            {
                pJob->Release();
                CoUninitialize();
                return; 
            }
            // Otherwise, dispatch the message.
            DispatchMessage(&msg); 
        } // End of PeekMessage while loop
    }

done:
    CoUninitialize();
finished:
	return;
cancel:
    pJob->Cancel();
    pJob->Release();
    goto done;
}