ProgressProxyImpl.cpp@ 98262

Last change on this file since 98262 was 98262, checked in by vboxsync, 23 months ago
Main: rc() -> hrc()/vrc(). bugref:10223
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1	/* $Id: ProgressProxyImpl.cpp 98262 2023-01-24 01:42:14Z vboxsync $ */
2	/** @file
3	* IProgress implementation for Machine::openRemoteSession in VBoxSVC.
4	*/
5
6	/*
7	* Copyright (C) 2010-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#define LOG_GROUP LOG_GROUP_MAIN_PROGRESS
29	#include <iprt/types.h>
30
31	#include "ProgressProxyImpl.h"
32
33	#include "VirtualBoxImpl.h"
34	#include "VirtualBoxErrorInfoImpl.h"
35
36	#include "LoggingNew.h"
37
38	#include <iprt/time.h>
39	#include <iprt/semaphore.h>
40	#include <iprt/errcore.h>
41
42	////////////////////////////////////////////////////////////////////////////////
43	// ProgressProxy class
44	////////////////////////////////////////////////////////////////////////////////
45
46	// constructor / destructor / uninitializer
47	////////////////////////////////////////////////////////////////////////////////
48
49
50	HRESULT ProgressProxy::FinalConstruct()
51	{
52	mfMultiOperation = false;
53	muOtherProgressStartWeight = 0;
54	muOtherProgressWeight = 0;
55	muOtherProgressStartOperation = 0;
56
57	HRESULT rc = Progress::FinalConstruct();
58	return rc;
59	}
60
61	/**
62	* Initialize it as a one operation Progress object.
63	*
64	* This is used by SessionMachine::OnSessionEnd.
65	*/
66	HRESULT ProgressProxy::init(
67	#if !defined (VBOX_COM_INPROC)
68	VirtualBox *pParent,
69	#endif
70	IUnknown *pInitiator,
71	Utf8Str strDescription,
72	BOOL fCancelable)
73	{
74	mfMultiOperation = false;
75	muOtherProgressStartWeight = 1;
76	muOtherProgressWeight = 1;
77	muOtherProgressStartOperation = 1;
78
79	return Progress::init(
80	#if !defined (VBOX_COM_INPROC)
81	pParent,
82	#endif
83	pInitiator,
84	strDescription,
85	fCancelable,
86	1 /* cOperations */,
87	1 /* ulTotalOperationsWeight */,
88	strDescription /* strFirstOperationDescription */,
89	1 /* ulFirstOperationWeight */);
90	}
91
92	/**
93	* Initialize for proxying one other progress object.
94	*
95	* This is tailored explicitly for the openRemoteSession code, so we start out
96	* with one operation where we don't have any remote object (powerUp). Then a
97	* remote object is added and stays with us till the end.
98	*
99	* The user must do normal completion notification or risk leave the threads
100	* waiting forever!
101	*/
102	HRESULT ProgressProxy::init(
103	#if !defined (VBOX_COM_INPROC)
104	VirtualBox *pParent,
105	#endif
106	IUnknown *pInitiator,
107	Utf8Str strDescription,
108	BOOL fCancelable,
109	ULONG uTotalOperationsWeight,
110	Utf8Str strFirstOperationDescription,
111	ULONG uFirstOperationWeight,
112	ULONG cOtherProgressObjectOperations)
113	{
114	mfMultiOperation = false;
115	muOtherProgressStartWeight = uFirstOperationWeight;
116	muOtherProgressWeight = uTotalOperationsWeight - uFirstOperationWeight;
117	muOtherProgressStartOperation = 1;
118
119	return Progress::init(
120	#if !defined (VBOX_COM_INPROC)
121	pParent,
122	#endif
123	pInitiator,
124	strDescription,
125	fCancelable,
126	1 + cOtherProgressObjectOperations /* cOperations */,
127	uTotalOperationsWeight,
128	strFirstOperationDescription,
129	uFirstOperationWeight);
130	}
131
132	void ProgressProxy::FinalRelease()
133	{
134	uninit();
135	mfMultiOperation = false;
136	muOtherProgressStartWeight = 0;
137	muOtherProgressWeight = 0;
138	muOtherProgressStartOperation = 0;
139
140	BaseFinalRelease();
141	}
142
143	void ProgressProxy::uninit()
144	{
145	LogFlowThisFunc(("\n"));
146
147	mptrOtherProgress.setNull();
148	Progress::uninit();
149	}
150
151	// Public methods
152	////////////////////////////////////////////////////////////////////////////////
153
154	/** Just a wrapper so we can automatically do the handover before setting
155	* the result locally. */
156	HRESULT ProgressProxy::notifyComplete(HRESULT aResultCode)
157	{
158	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
159	clearOtherProgressObjectInternal(true /* fEarly */);
160	HRESULT hrc = S_OK;
161	if (!mCompleted)
162	hrc = Progress::i_notifyComplete(aResultCode);
163	return hrc;
164	}
165
166	/** Just a wrapper so we can automatically do the handover before setting
167	* the result locally. */
168	HRESULT ProgressProxy::notifyComplete(HRESULT aResultCode,
169	const GUID &aIID,
170	const char *pcszComponent,
171	const char *aText,
172	...)
173	{
174	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
175	clearOtherProgressObjectInternal(true /* fEarly */);
176
177	HRESULT hrc = S_OK;
178	if (!mCompleted)
179	{
180	va_list va;
181	va_start(va, aText);
182	hrc = Progress::i_notifyCompleteV(aResultCode, aIID, pcszComponent, aText, va);
183	va_end(va);
184	}
185	return hrc;
186	}
187
188	/**
189	* Sets the other progress object unless the operation has been completed /
190	* canceled already.
191	*
192	* @returns false if failed/canceled, true if not.
193	* @param pOtherProgress The other progress object. Must not be NULL.
194	*/
195	bool ProgressProxy::setOtherProgressObject(IProgress *pOtherProgress)
196	{
197	LogFlowThisFunc(("setOtherProgressObject: %p\n", pOtherProgress));
198	ComPtr<IProgress> ptrOtherProgress = pOtherProgress;
199
200	/*
201	* Query information from the other progress object before we grab the
202	* lock.
203	*/
204	ULONG cOperations;
205	HRESULT hrc = pOtherProgress->COMGETTER(OperationCount)(&cOperations);
206	if (FAILED(hrc))
207	cOperations = 1;
208
209	Bstr bstrOperationDescription;
210	hrc = pOtherProgress->COMGETTER(Description)(bstrOperationDescription.asOutParam());
211	if (FAILED(hrc))
212	bstrOperationDescription = "oops";
213
214
215	/*
216	* Take the lock and check for cancelation, cancel the other object if
217	* we've been canceled already.
218	*/
219	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
220
221	BOOL fCompletedOrCanceled = mCompleted \|\| mCanceled;
222	if (!fCompletedOrCanceled)
223	{
224	/*
225	* Advance to the next object and operation. If the other object has
226	* more operations than anticipated, adjust our internal count.
227	*/
228	mptrOtherProgress = ptrOtherProgress;
229	mfMultiOperation = cOperations > 1;
230
231	muOtherProgressStartWeight = m_ulOperationsCompletedWeight + m_ulCurrentOperationWeight;
232	muOtherProgressWeight = m_ulTotalOperationsWeight - muOtherProgressStartWeight;
233	Progress::SetNextOperation(bstrOperationDescription.raw(), muOtherProgressWeight);
234
235	muOtherProgressStartOperation = m_ulCurrentOperation;
236	m_cOperations = cOperations + m_ulCurrentOperation;
237
238	/*
239	* Check for cancelation and completion.
240	*/
241	BOOL f;
242	hrc = ptrOtherProgress->COMGETTER(Completed)(&f);
243	fCompletedOrCanceled = FAILED(hrc) \|\| f;
244
245	if (!fCompletedOrCanceled)
246	{
247	hrc = ptrOtherProgress->COMGETTER(Canceled)(&f);
248	fCompletedOrCanceled = SUCCEEDED(hrc) && f;
249	}
250
251	if (fCompletedOrCanceled)
252	{
253	LogFlowThisFunc(("Other object completed or canceled, clearing...\n"));
254	clearOtherProgressObjectInternal(false /fEarly/);
255	}
256	else
257	{
258	/*
259	* Finally, mirror the cancelable property.
260	* Note! Note necessary if we do passthru!
261	*/
262	if (mCancelable)
263	{
264	hrc = ptrOtherProgress->COMGETTER(Cancelable)(&f);
265	if (SUCCEEDED(hrc) && !f)
266	{
267	LogFlowThisFunc(("The other progress object is not cancelable\n"));
268	mCancelable = FALSE;
269	}
270	}
271	}
272	}
273	else
274	{
275	LogFlowThisFunc(("mCompleted=%RTbool mCanceled=%RTbool - Canceling the other progress object!\n",
276	mCompleted, mCanceled));
277	hrc = ptrOtherProgress->Cancel();
278	LogFlowThisFunc(("Cancel -> %Rhrc", hrc));
279	}
280
281	LogFlowThisFunc(("Returns %RTbool\n", !fCompletedOrCanceled));
282	return !fCompletedOrCanceled;
283	}
284
285	// Internal methods.
286	////////////////////////////////////////////////////////////////////////////////
287
288
289	/**
290	* Clear the other progress object reference, first copying over its state.
291	*
292	* This is used internally when completion is signalled one way or another.
293	*
294	* @param fEarly Early clearing or not.
295	*/
296	void ProgressProxy::clearOtherProgressObjectInternal(bool fEarly)
297	{
298	if (!mptrOtherProgress.isNull())
299	{
300	ComPtr<IProgress> ptrOtherProgress = mptrOtherProgress;
301	mptrOtherProgress.setNull();
302	copyProgressInfo(ptrOtherProgress, fEarly);
303	}
304	}
305
306	/**
307	* Called to copy over the progress information from @a pOtherProgress.
308	*
309	* @param pOtherProgress The source of the information.
310	* @param fEarly Early copy.
311	*
312	* @note The caller owns the write lock and as cleared mptrOtherProgress
313	* already (or we might recurse forever)!
314	*/
315	void ProgressProxy::copyProgressInfo(IProgress *pOtherProgress, bool fEarly)
316	{
317	HRESULT hrc;
318	LogFlowThisFunc(("\n"));
319
320	NOREF(fEarly);
321
322	/*
323	* No point in doing this if the progress object was canceled already.
324	*/
325	if (!mCanceled)
326	{
327	/* Detect if the other progress object was canceled. */
328	BOOL fCanceled;
329	hrc = pOtherProgress->COMGETTER(Canceled)(&fCanceled);
330	if (FAILED(hrc))
331	fCanceled = FALSE;
332	if (fCanceled)
333	{
334	LogFlowThisFunc(("Canceled\n"));
335	mCanceled = TRUE;
336	if (m_pfnCancelCallback)
337	m_pfnCancelCallback(m_pvCancelUserArg);
338	}
339	else
340	{
341	/* Has it completed? */
342	BOOL fCompleted;
343	hrc = pOtherProgress->COMGETTER(Completed)(&fCompleted);
344	if (FAILED(hrc))
345	fCompleted = TRUE;
346	Assert(fCompleted \|\| fEarly);
347	if (fCompleted)
348	{
349	/* Check the result. */
350	LONG lResult;
351	hrc = pOtherProgress->COMGETTER(ResultCode)(&lResult);
352	if (FAILED(hrc))
353	lResult = (LONG)hrc;
354	if (SUCCEEDED((HRESULT)lResult))
355	LogFlowThisFunc(("Succeeded\n"));
356	else
357	{
358	/* Get the error information. */
359	ComPtr<IVirtualBoxErrorInfo> ptrErrorInfo;
360	hrc = pOtherProgress->COMGETTER(ErrorInfo)(ptrErrorInfo.asOutParam());
361	if (SUCCEEDED(hrc) && !ptrErrorInfo.isNull())
362	{
363	Bstr bstrIID;
364	hrc = ptrErrorInfo->COMGETTER(InterfaceID)(bstrIID.asOutParam()); AssertComRC(hrc);
365	if (FAILED(hrc))
366	bstrIID.setNull();
367
368	Bstr bstrComponent;
369	hrc = ptrErrorInfo->COMGETTER(Component)(bstrComponent.asOutParam()); AssertComRC(hrc);
370	if (FAILED(hrc))
371	bstrComponent = "failed";
372
373	Bstr bstrText;
374	hrc = ptrErrorInfo->COMGETTER(Text)(bstrText.asOutParam()); AssertComRC(hrc);
375	if (FAILED(hrc))
376	bstrText = "<failed>";
377
378	Utf8Str strText(bstrText);
379	LogFlowThisFunc(("Got ErrorInfo(%s); hrcResult=%Rhrc\n", strText.c_str(), (HRESULT)lResult));
380	Progress::i_notifyComplete((HRESULT)lResult,
381	Guid(bstrIID).ref(),
382	Utf8Str(bstrComponent).c_str(),
383	"%s", strText.c_str());
384	}
385	else
386	{
387	LogFlowThisFunc(("ErrorInfo failed with hrc=%Rhrc; hrcResult=%Rhrc\n", hrc, (HRESULT)lResult));
388	Progress::i_notifyComplete((HRESULT)lResult,
389	COM_IIDOF(IProgress),
390	"ProgressProxy",
391	tr("No error info"));
392	}
393	}
394	}
395	else
396	LogFlowThisFunc(("Not completed\n"));
397	}
398	}
399	else
400	LogFlowThisFunc(("Already canceled\n"));
401
402	/*
403	* Did cancelable state change (point of no return)?
404	*/
405	if (mCancelable && !mCompleted && !mCanceled)
406	{
407	BOOL fCancelable;
408	hrc = pOtherProgress->COMGETTER(Cancelable)(&fCancelable); AssertComRC(hrc);
409	if (SUCCEEDED(hrc) && !fCancelable)
410	{
411	LogFlowThisFunc(("point-of-no-return reached\n"));
412	mCancelable = FALSE;
413	}
414	}
415	}
416
417
418	// IProgress properties
419	////////////////////////////////////////////////////////////////////////////////
420
421	STDMETHODIMP ProgressProxy::COMGETTER(Cancelable)(BOOL *aCancelable)
422	{
423	CheckComArgOutPointerValid(aCancelable);
424
425	AutoCaller autoCaller(this);
426	HRESULT hrc = autoCaller.hrc();
427	if (SUCCEEDED(hrc))
428	{
429	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
430
431	/* ASSUME: The cancelable property can only change to FALSE. */
432	if (!mCancelable \|\| mptrOtherProgress.isNull())
433	*aCancelable = mCancelable;
434	else
435	{
436	hrc = mptrOtherProgress->COMGETTER(Cancelable)(aCancelable);
437	if (SUCCEEDED(hrc) && !*aCancelable)
438	{
439	LogFlowThisFunc(("point-of-no-return reached\n"));
440	mCancelable = FALSE;
441	}
442	}
443	}
444	return hrc;
445	}
446
447	STDMETHODIMP ProgressProxy::COMGETTER(Percent)(ULONG *aPercent)
448	{
449	CheckComArgOutPointerValid(aPercent);
450
451	AutoCaller autoCaller(this);
452	HRESULT hrc = autoCaller.hrc();
453	if (SUCCEEDED(hrc))
454	{
455	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
456
457	if (mptrOtherProgress.isNull())
458	hrc = Progress::COMGETTER(Percent)(aPercent);
459	else
460	{
461	/*
462	* Get the overall percent of the other object and adjust it with
463	* the weighting given to the period before proxying started.
464	*/
465	ULONG uPct;
466	hrc = mptrOtherProgress->COMGETTER(Percent)(&uPct);
467	if (SUCCEEDED(hrc))
468	{
469	double rdPercent = ((double)uPct / 100 * muOtherProgressWeight + muOtherProgressStartWeight)
470	/ m_ulTotalOperationsWeight * 100;
471	aPercent = RT_MIN((ULONG)rdPercent, 99); / mptrOtherProgress is cleared when its completed,
472	so we can never return 100%. */
473	}
474	}
475	}
476	return hrc;
477	}
478
479	STDMETHODIMP ProgressProxy::COMGETTER(TimeRemaining)(LONG *aTimeRemaining)
480	{
481	CheckComArgOutPointerValid(aTimeRemaining);
482
483	AutoCaller autoCaller(this);
484	HRESULT hrc = autoCaller.hrc();
485	if (SUCCEEDED(hrc))
486	{
487	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
488
489	if (mptrOtherProgress.isNull())
490	hrc = Progress::COMGETTER(TimeRemaining)(aTimeRemaining);
491	else
492	hrc = mptrOtherProgress->COMGETTER(TimeRemaining)(aTimeRemaining);
493	}
494	return hrc;
495	}
496
497	STDMETHODIMP ProgressProxy::COMGETTER(Completed)(BOOL *aCompleted)
498	{
499	/* Not proxied since we EXPECT a normal completion notification call. */
500	return Progress::COMGETTER(Completed)(aCompleted);
501	}
502
503	STDMETHODIMP ProgressProxy::COMGETTER(Canceled)(BOOL *aCanceled)
504	{
505	CheckComArgOutPointerValid(aCanceled);
506
507	AutoCaller autoCaller(this);
508	HRESULT hrc = autoCaller.hrc();
509	if (SUCCEEDED(hrc))
510	{
511	/* Check the local data first, then the other object. */
512	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
513	hrc = Progress::COMGETTER(Canceled)(aCanceled);
514	if ( SUCCEEDED(hrc)
515	&& !*aCanceled
516	&& !mptrOtherProgress.isNull()
517	&& mCancelable)
518	{
519	hrc = mptrOtherProgress->COMGETTER(Canceled)(aCanceled);
520	if (SUCCEEDED(hrc) && *aCanceled)
521	/* This will not complete the object, only mark it as canceled. */
522	clearOtherProgressObjectInternal(false /fEarly/);
523	}
524	}
525	return hrc;
526	}
527
528	STDMETHODIMP ProgressProxy::COMGETTER(ResultCode)(LONG *aResultCode)
529	{
530	/* Not proxied since we EXPECT a normal completion notification call. */
531	return Progress::COMGETTER(ResultCode)(aResultCode);
532	}
533
534	STDMETHODIMP ProgressProxy::COMGETTER(ErrorInfo)(IVirtualBoxErrorInfo **aErrorInfo)
535	{
536	/* Not proxied since we EXPECT a normal completion notification call. */
537	return Progress::COMGETTER(ErrorInfo)(aErrorInfo);
538	}
539
540	STDMETHODIMP ProgressProxy::COMGETTER(Operation)(ULONG *aOperation)
541	{
542	CheckComArgOutPointerValid(aOperation);
543
544	AutoCaller autoCaller(this);
545	HRESULT hrc = autoCaller.hrc();
546	if (SUCCEEDED(hrc))
547	{
548	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
549	if (mptrOtherProgress.isNull())
550	hrc = Progress::COMGETTER(Operation)(aOperation);
551	else
552	{
553	ULONG uCurOtherOperation;
554	hrc = mptrOtherProgress->COMGETTER(Operation)(&uCurOtherOperation);
555	if (SUCCEEDED(hrc))
556	*aOperation = uCurOtherOperation + muOtherProgressStartOperation;
557	}
558	}
559	return hrc;
560	}
561
562	STDMETHODIMP ProgressProxy::COMGETTER(OperationDescription)(BSTR *aOperationDescription)
563	{
564	CheckComArgOutPointerValid(aOperationDescription);
565
566	AutoCaller autoCaller(this);
567	HRESULT hrc = autoCaller.hrc();
568	if (SUCCEEDED(hrc))
569	{
570	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
571	if (mptrOtherProgress.isNull() \|\| !mfMultiOperation)
572	hrc = Progress::COMGETTER(OperationDescription)(aOperationDescription);
573	else
574	hrc = mptrOtherProgress->COMGETTER(OperationDescription)(aOperationDescription);
575	}
576	return hrc;
577	}
578
579	STDMETHODIMP ProgressProxy::COMGETTER(OperationPercent)(ULONG *aOperationPercent)
580	{
581	CheckComArgOutPointerValid(aOperationPercent);
582
583	AutoCaller autoCaller(this);
584	HRESULT hrc = autoCaller.hrc();
585	if (SUCCEEDED(hrc))
586	{
587	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
588	if (mptrOtherProgress.isNull() \|\| !mfMultiOperation)
589	hrc = Progress::COMGETTER(OperationPercent)(aOperationPercent);
590	else
591	hrc = mptrOtherProgress->COMGETTER(OperationPercent)(aOperationPercent);
592	}
593	return hrc;
594	}
595
596	STDMETHODIMP ProgressProxy::COMSETTER(Timeout)(ULONG aTimeout)
597	{
598	/* Not currently supported. */
599	NOREF(aTimeout);
600	AssertFailed();
601	return E_NOTIMPL;
602	}
603
604	STDMETHODIMP ProgressProxy::COMGETTER(Timeout)(ULONG *aTimeout)
605	{
606	/* Not currently supported. */
607	CheckComArgOutPointerValid(aTimeout);
608
609	AssertFailed();
610	return E_NOTIMPL;
611	}
612
613	// IProgress methods
614	/////////////////////////////////////////////////////////////////////////////
615
616	STDMETHODIMP ProgressProxy::WaitForCompletion(LONG aTimeout)
617	{
618	HRESULT hrc;
619	LogFlowThisFuncEnter();
620	LogFlowThisFunc(("aTimeout=%d\n", aTimeout));
621
622	/* No need to wait on the proxied object for these since we'll get the
623	normal completion notifications. */
624	hrc = Progress::WaitForCompletion(aTimeout);
625
626	LogFlowThisFuncLeave();
627	return hrc;
628	}
629
630	STDMETHODIMP ProgressProxy::WaitForOperationCompletion(ULONG aOperation, LONG aTimeout)
631	{
632	LogFlowThisFuncEnter();
633	LogFlowThisFunc(("aOperation=%d aTimeout=%d\n", aOperation, aTimeout));
634
635	AutoCaller autoCaller(this);
636	HRESULT hrc = autoCaller.hrc();
637	if (SUCCEEDED(hrc))
638	{
639	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
640
641	CheckComArgExpr(aOperation, aOperation < m_cOperations);
642
643	/*
644	* Check if we can wait locally.
645	*/
646	if ( aOperation + 1 == m_cOperations /* final operation */
647	\|\| mptrOtherProgress.isNull())
648	{
649	/* ASSUMES that Progress::WaitForOperationCompletion is using
650	AutoWriteLock::leave() as it saves us from duplicating the code! */
651	hrc = Progress::WaitForOperationCompletion(aOperation, aTimeout);
652	}
653	else
654	{
655	LogFlowThisFunc(("calling the other object...\n"));
656	ComPtr<IProgress> ptrOtherProgress = mptrOtherProgress;
657	alock.release();
658
659	hrc = ptrOtherProgress->WaitForOperationCompletion(aOperation, aTimeout);
660	}
661	}
662
663	LogFlowThisFuncLeave();
664	return hrc;
665	}
666
667	STDMETHODIMP ProgressProxy::Cancel()
668	{
669	LogFlowThisFunc(("\n"));
670	AutoCaller autoCaller(this);
671	HRESULT hrc = autoCaller.hrc();
672	if (SUCCEEDED(hrc))
673	{
674	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
675	if (mptrOtherProgress.isNull() \|\| !mCancelable)
676	hrc = Progress::Cancel();
677	else
678	{
679	hrc = mptrOtherProgress->Cancel();
680	if (SUCCEEDED(hrc))
681	clearOtherProgressObjectInternal(false /fEarly/);
682	}
683	}
684
685	LogFlowThisFunc(("returns %Rhrc\n", hrc));
686	return hrc;
687	}
688
689	STDMETHODIMP ProgressProxy::SetCurrentOperationProgress(ULONG aPercent)
690	{
691	/* Not supported - why do we actually expose this? */
692	NOREF(aPercent);
693	return E_NOTIMPL;
694	}
695
696	STDMETHODIMP ProgressProxy::SetNextOperation(IN_BSTR bstrNextOperationDescription, ULONG ulNextOperationsWeight)
697	{
698	/* Not supported - why do we actually expose this? */
699	NOREF(bstrNextOperationDescription);
700	NOREF(ulNextOperationsWeight);
701	return E_NOTIMPL;
702	}
703
704	#ifdef VBOX_WITH_XPCOM
705	NS_DECL_CLASSINFO(ProgressProxy)
706	NS_IMPL_THREADSAFE_ISUPPORTS1_CI(ProgressProxy, IProgress)
707	#endif
708
709	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/src-server/ProgressProxyImpl.cpp@ 98262

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