tstCAPIGlue.c@ 84246

Last change on this file since 84246 was 83828, checked in by vboxsync, 5 years ago
Main/tstCAPIGlue: VC++ 14.1 warnings - build fixes. bugref:8489
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1	/* $Id: tstCAPIGlue.c 83828 2020-04-19 13:01:40Z vboxsync $ */
2	/** @file tstCAPIGlue.c
3	* Demonstrator program to illustrate use of C bindings of Main API.
4	*
5	* It has sample code showing how to retrieve all available error information,
6	* and how to handle active (event delivery through callbacks) or passive
7	* (event delivery through a polling mechanism) event listeners.
8	*/
9
10	/*
11	* Copyright (C) 2009-2020 Oracle Corporation
12	*
13	* This file is part of VirtualBox Open Source Edition (OSE), as
14	* available from http://www.virtualbox.org. This file is free software;
15	* you can redistribute it and/or modify it under the terms of the GNU
16	* General Public License (GPL) as published by the Free Software
17	* Foundation, in version 2 as it comes in the "COPYING" file of the
18	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
19	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
20	*/
21
22
23	/** @todo
24	* Our appologies for the 256+ missing return code checks in this sample file.
25	*
26	* We strongly recomment users of the VBoxCAPI to check all return codes!
27	*/
28
29
30	/*********************************************************************************************************************************
31	* Header Files *
32	*********************************************************************************************************************************/
33	#include "VBoxCAPIGlue.h"
34	#include <stdio.h>
35	#include <string.h>
36	#include <stdlib.h>
37	#ifndef WIN32
38	# include <signal.h>
39	# include <unistd.h>
40	# include <sys/poll.h>
41	#endif
42	#ifdef IPRT_INCLUDED_cdefs_h
43	# error "not supposed to involve any IPRT or VBox headers here."
44	#endif
45
46	/**
47	* Select between active event listener (defined) and passive event listener
48	* (undefined). The active event listener case needs much more code, and
49	* additionally requires a lot more platform dependent code.
50	*/
51	#undef USE_ACTIVE_EVENT_LISTENER
52
53
54	/*********************************************************************************************************************************
55	* Global Variables *
56	*********************************************************************************************************************************/
57	/** Set by Ctrl+C handler. */
58	static volatile int g_fStop = 0;
59
60	#ifdef USE_ACTIVE_EVENT_LISTENER
61	# ifdef WIN32
62	/** The COM type information for IEventListener, for implementing IDispatch. */
63	static ITypeInfo *g_pTInfoIEventListener = NULL;
64	# endif /* WIN32 */
65	#endif /* USE_ACTIVE_EVENT_LISTENER */
66
67	static const char *GetStateName(MachineState_T machineState)
68	{
69	switch (machineState)
70	{
71	case MachineState_Null: return "<null>";
72	case MachineState_PoweredOff: return "PoweredOff";
73	case MachineState_Saved: return "Saved";
74	case MachineState_Teleported: return "Teleported";
75	case MachineState_Aborted: return "Aborted";
76	case MachineState_Running: return "Running";
77	case MachineState_Paused: return "Paused";
78	case MachineState_Stuck: return "Stuck";
79	case MachineState_Teleporting: return "Teleporting";
80	case MachineState_LiveSnapshotting: return "LiveSnapshotting";
81	case MachineState_Starting: return "Starting";
82	case MachineState_Stopping: return "Stopping";
83	case MachineState_Saving: return "Saving";
84	case MachineState_Restoring: return "Restoring";
85	case MachineState_TeleportingPausedVM: return "TeleportingPausedVM";
86	case MachineState_TeleportingIn: return "TeleportingIn";
87	case MachineState_DeletingSnapshotOnline: return "DeletingSnapshotOnline";
88	case MachineState_DeletingSnapshotPaused: return "DeletingSnapshotPaused";
89	case MachineState_RestoringSnapshot: return "RestoringSnapshot";
90	case MachineState_DeletingSnapshot: return "DeletingSnapshot";
91	case MachineState_SettingUp: return "SettingUp";
92	default: return "no idea";
93	}
94	}
95
96	/**
97	* Ctrl+C handler, terminate event listener.
98	*
99	* Remember that most function calls are not allowed in this context (including
100	* printf!), so make sure that this does as little as possible.
101	*
102	* @param iInfo Platform dependent detail info (ignored).
103	*/
104	#ifdef WIN32
105	static BOOL VBOX_WINAPI ctrlCHandler(DWORD iInfo)
106	{
107	(void)iInfo;
108	g_fStop = 1;
109	return TRUE;
110	}
111	#else
112	static void ctrlCHandler(int iInfo)
113	{
114	(void)iInfo;
115	g_fStop = 1;
116	}
117	#endif
118
119	/**
120	* Sample event processing function, dumping some event information.
121	* Shared between active and passive event demo, to highlight that this part
122	* is identical between the two.
123	*/
124	static HRESULT EventListenerDemoProcessEvent(IEvent *event)
125	{
126	VBoxEventType_T evType;
127	HRESULT rc;
128
129	if (!event)
130	{
131	printf("event null\n");
132	return S_OK;
133	}
134
135	evType = VBoxEventType_Invalid;
136	rc = IEvent_get_Type(event, &evType);
137	if (FAILED(rc))
138	{
139	printf("cannot get event type, rc=%#x\n", (unsigned)rc);
140	return S_OK;
141	}
142
143	switch (evType)
144	{
145	case VBoxEventType_OnMousePointerShapeChanged:
146	printf("OnMousePointerShapeChanged\n");
147	break;
148
149	case VBoxEventType_OnMouseCapabilityChanged:
150	printf("OnMouseCapabilityChanged\n");
151	break;
152
153	case VBoxEventType_OnKeyboardLedsChanged:
154	printf("OnMouseCapabilityChanged\n");
155	break;
156
157	case VBoxEventType_OnStateChanged:
158	{
159	IStateChangedEvent *ev = NULL;
160	enum MachineState state;
161	rc = IEvent_QueryInterface(event, &IID_IStateChangedEvent, (void **)&ev);
162	if (FAILED(rc))
163	{
164	printf("cannot get StateChangedEvent interface, rc=%#x\n", (unsigned)rc);
165	return S_OK;
166	}
167	if (!ev)
168	{
169	printf("StateChangedEvent reference null\n");
170	return S_OK;
171	}
172	rc = IStateChangedEvent_get_State(ev, &state);
173	if (FAILED(rc))
174	printf("warning: cannot get state, rc=%#x\n", (unsigned)rc);
175	IStateChangedEvent_Release(ev);
176	printf("OnStateChanged: %s\n", GetStateName(state));
177
178	fflush(stdout);
179	if ( state == MachineState_PoweredOff
180	\|\| state == MachineState_Saved
181	\|\| state == MachineState_Teleported
182	\|\| state == MachineState_Aborted
183	)
184	g_fStop = 1;
185	break;
186	}
187
188	case VBoxEventType_OnAdditionsStateChanged:
189	printf("OnAdditionsStateChanged\n");
190	break;
191
192	case VBoxEventType_OnNetworkAdapterChanged:
193	printf("OnNetworkAdapterChanged\n");
194	break;
195
196	case VBoxEventType_OnSerialPortChanged:
197	printf("OnSerialPortChanged\n");
198	break;
199
200	case VBoxEventType_OnParallelPortChanged:
201	printf("OnParallelPortChanged\n");
202	break;
203
204	case VBoxEventType_OnStorageControllerChanged:
205	printf("OnStorageControllerChanged\n");
206	break;
207
208	case VBoxEventType_OnMediumChanged:
209	printf("OnMediumChanged\n");
210	break;
211
212	case VBoxEventType_OnVRDEServerChanged:
213	printf("OnVRDEServerChanged\n");
214	break;
215
216	case VBoxEventType_OnUSBControllerChanged:
217	printf("OnUSBControllerChanged\n");
218	break;
219
220	case VBoxEventType_OnUSBDeviceStateChanged:
221	printf("OnUSBDeviceStateChanged\n");
222	break;
223
224	case VBoxEventType_OnSharedFolderChanged:
225	printf("OnSharedFolderChanged\n");
226	break;
227
228	case VBoxEventType_OnRuntimeError:
229	printf("OnRuntimeError\n");
230	break;
231
232	case VBoxEventType_OnCanShowWindow:
233	printf("OnCanShowWindow\n");
234	break;
235	case VBoxEventType_OnShowWindow:
236	printf("OnShowWindow\n");
237	break;
238
239	default:
240	printf("unknown event: %d\n", evType);
241	}
242
243	return S_OK;
244	}
245
246	#ifdef USE_ACTIVE_EVENT_LISTENER
247
248	struct IEventListenerDemo;
249	typedef struct IEventListenerDemo IEventListenerDemo;
250
251	typedef struct IEventListenerDemoVtbl
252	{
253	HRESULT (QueryInterface)(IEventListenerDemo pThis, REFIID riid, void **ppvObject);
254	ULONG (AddRef)(IEventListenerDemo pThis);
255	ULONG (Release)(IEventListenerDemo pThis);
256	#ifdef WIN32
257	HRESULT (GetTypeInfoCount)(IEventListenerDemo pThis, UINT *pctinfo);
258	HRESULT (GetTypeInfo)(IEventListenerDemo pThis, UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo);
259	HRESULT (GetIDsOfNames)(IEventListenerDemo pThis, REFIID riid, LPOLESTR rgszNames, UINT cNames, LCID lcid, DISPID rgDispId);
260	HRESULT (Invoke)(IEventListenerDemo pThis, DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS pDispParams, VARIANT pVarResult, EXCEPINFO pExcepInfo, UINT puArgErr);
261	#endif
262	HRESULT (HandleEvent)(IEventListenerDemo pThis, IEvent *aEvent);
263	} IEventListenerDemoVtbl;
264
265	typedef struct IEventListenerDemo
266	{
267	struct IEventListenerDemoVtbl *lpVtbl;
268
269	int cRef;
270
271	#ifdef WIN32
272	/* Active event delivery needs a free threaded marshaler, as the default
273	* proxy marshaling cannot deal correctly with this case. */
274	IUnknown *pUnkMarshaler;
275	#endif
276	} IEventListenerDemo;
277
278	/* Defines for easily calling IEventListenerDemo functions. */
279
280	/* IUnknown functions. */
281	#define IEventListenerDemo_QueryInterface(This,riid,ppvObject) \
282	( (This)->lpVtbl->QueryInterface(This,riid,ppvObject) )
283
284	#define IEventListenerDemo_AddRef(This) \
285	( (This)->lpVtbl->AddRef(This) )
286
287	#define IEventListenerDemo_Release(This) \
288	( (This)->lpVtbl->Release(This) )
289
290	#ifdef WIN32
291	/* IDispatch functions. */
292	#define IEventListenerDemo_GetTypeInfoCount(This,pctinfo) \
293	( (This)->lpVtbl->GetTypeInfoCount(This,pctinfo) )
294
295	#define IEventListenerDemo_GetTypeInfo(This,iTInfo,lcid,ppTInfo) \
296	( (This)->lpVtbl->GetTypeInfo(This,iTInfo,lcid,ppTInfo) )
297
298	#define IEventListenerDemo_GetIDsOfNames(This,riid,rgszNames,cNames,lcid,rgDispId) \
299	( (This)->lpVtbl->GetIDsOfNames(This,riid,rgszNames,cNames,lcid,rgDispId) )
300
301	#define IEventListenerDemo_Invoke(This,dispIdMember,riid,lcid,wFlags,pDispParams,pVarResult,pExcepInfo,puArgErr) \
302	( (This)->lpVtbl->Invoke(This,dispIdMember,riid,lcid,wFlags,pDispParams,pVarResult,pExcepInfo,puArgErr) )
303	#endif
304
305	/* IEventListener functions. */
306	#define IEventListenerDemo_HandleEvent(This,aEvent) \
307	( (This)->lpVtbl->HandleEvent(This,aEvent) )
308
309
310	/**
311	* Event handler function, for active event processing.
312	*/
313	static HRESULT IEventListenerDemoImpl_HandleEvent(IEventListenerDemo pThis, IEvent event)
314	{
315	return EventListenerDemoProcessEvent(event);
316	}
317
318	static HRESULT IEventListenerDemoImpl_QueryInterface(IEventListenerDemo pThis, const IID iid, void **resultp)
319	{
320	/* match iid */
321	if ( !memcmp(iid, &IID_IEventListener, sizeof(IID))
322	\|\| !memcmp(iid, &IID_IDispatch, sizeof(IID))
323	\|\| !memcmp(iid, &IID_IUnknown, sizeof(IID)))
324	{
325	IEventListenerDemo_AddRef(pThis);
326	*resultp = pThis;
327	return S_OK;
328	}
329	#ifdef WIN32
330	if (!memcmp(iid, &IID_IMarshal, sizeof(IID)))
331	return IUnknown_QueryInterface(pThis->pUnkMarshaler, iid, resultp);
332	#endif
333
334	return E_NOINTERFACE;
335	}
336
337	static HRESULT IEventListenerDemoImpl_AddRef(IEventListenerDemo *pThis)
338	{
339	return ++(pThis->cRef);
340	}
341
342	static HRESULT IEventListenerDemoImpl_Release(IEventListenerDemo *pThis)
343	{
344	HRESULT c;
345
346	c = --(pThis->cRef);
347	if (!c)
348	free(pThis);
349	return c;
350	}
351
352	#ifdef WIN32
353	static HRESULT IEventListenerDemoImpl_GetTypeInfoCount(IEventListenerDemo pThis, UINT pctinfo)
354	{
355	if (!pctinfo)
356	return E_POINTER;
357	*pctinfo = 1;
358	return S_OK;
359	}
360
361	static HRESULT IEventListenerDemoImpl_GetTypeInfo(IEventListenerDemo pThis, UINT iTInfo, LCID lcid, ITypeInfo *ppTInfo)
362	{
363	if (!ppTInfo)
364	return E_POINTER;
365	ITypeInfo_AddRef(g_pTInfoIEventListener);
366	*ppTInfo = g_pTInfoIEventListener;
367	return S_OK;
368	}
369
370	static HRESULT IEventListenerDemoImpl_GetIDsOfNames(IEventListenerDemo pThis, REFIID riid, LPOLESTR rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId)
371	{
372	return ITypeInfo_GetIDsOfNames(g_pTInfoIEventListener, rgszNames, cNames, rgDispId);
373	}
374
375	static HRESULT IEventListenerDemoImpl_Invoke(IEventListenerDemo pThis, DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS pDispParams, VARIANT pVarResult, EXCEPINFO pExcepInfo, UINT *puArgErr)
376	{
377	return ITypeInfo_Invoke(g_pTInfoIEventListener, (IDispatch *)pThis, dispIdMember, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
378	}
379
380	static HRESULT LoadTypeInfo(REFIID riid, ITypeInfo **pTInfo)
381	{
382	HRESULT rc;
383	ITypeLib *pTypeLib;
384	rc = LoadRegTypeLib(&LIBID_VirtualBox, 1 /* major /, 0 / minor /, 0 / lcid */, &pTypeLib);
385	if (FAILED(rc))
386	return rc;
387	rc = ITypeLib_GetTypeInfoOfGuid(pTypeLib, riid, pTInfo);
388
389	/* No longer need access to the type lib, release it. */
390	ITypeLib_Release(pTypeLib);
391
392	return rc;
393	}
394	#endif
395
396	#ifdef __GNUC__
397	typedef struct IEventListenerDemoVtblInt
398	{
399	ptrdiff_t offset_to_top;
400	void *typeinfo;
401	IEventListenerDemoVtbl lpVtbl;
402	} IEventListenerDemoVtblInt;
403
404	static IEventListenerDemoVtblInt g_IEventListenerDemoVtblInt =
405	{
406	0, /* offset_to_top */
407	NULL, /* typeinfo, not vital */
408	{
409	IEventListenerDemoImpl_QueryInterface,
410	IEventListenerDemoImpl_AddRef,
411	IEventListenerDemoImpl_Release,
412	#ifdef WIN32
413	IEventListenerDemoImpl_GetTypeInfoCount,
414	IEventListenerDemoImpl_GetTypeInfo,
415	IEventListenerDemoImpl_GetIDsOfNames,
416	IEventListenerDemoImpl_Invoke,
417	#endif
418	IEventListenerDemoImpl_HandleEvent
419	}
420	};
421	#elif defined(_MSC_VER)
422	typedef struct IEventListenerDemoVtblInt
423	{
424	IEventListenerDemoVtbl lpVtbl;
425	} IEventListenerDemoVtblInt;
426
427	static IEventListenerDemoVtblInt g_IEventListenerDemoVtblInt =
428	{
429	{
430	IEventListenerDemoImpl_QueryInterface,
431	IEventListenerDemoImpl_AddRef,
432	IEventListenerDemoImpl_Release,
433	#ifdef WIN32
434	IEventListenerDemoImpl_GetTypeInfoCount,
435	IEventListenerDemoImpl_GetTypeInfo,
436	IEventListenerDemoImpl_GetIDsOfNames,
437	IEventListenerDemoImpl_Invoke,
438	#endif
439	IEventListenerDemoImpl_HandleEvent
440	}
441	};
442	#else
443	# error Port me!
444	#endif
445
446	/**
447	* Register active event listener for the selected VM.
448	*
449	* @param virtualBox ptr to IVirtualBox object
450	* @param session ptr to ISession object
451	*/
452	static void registerActiveEventListener(IVirtualBox virtualBox, ISession session)
453	{
454	IConsole *console = NULL;
455	HRESULT rc;
456
457	rc = ISession_get_Console(session, &console);
458	if ((SUCCEEDED(rc)) && console)
459	{
460	IEventSource *es = NULL;
461	rc = IConsole_get_EventSource(console, &es);
462	if (SUCCEEDED(rc) && es)
463	{
464	static const ULONG s_auInterestingEvents[] =
465	{
466	VBoxEventType_OnMousePointerShapeChanged,
467	VBoxEventType_OnMouseCapabilityChanged,
468	VBoxEventType_OnKeyboardLedsChanged,
469	VBoxEventType_OnStateChanged,
470	VBoxEventType_OnAdditionsStateChanged,
471	VBoxEventType_OnNetworkAdapterChanged,
472	VBoxEventType_OnSerialPortChanged,
473	VBoxEventType_OnParallelPortChanged,
474	VBoxEventType_OnStorageControllerChanged,
475	VBoxEventType_OnMediumChanged,
476	VBoxEventType_OnVRDEServerChanged,
477	VBoxEventType_OnUSBControllerChanged,
478	VBoxEventType_OnUSBDeviceStateChanged,
479	VBoxEventType_OnSharedFolderChanged,
480	VBoxEventType_OnRuntimeError,
481	VBoxEventType_OnCanShowWindow,
482	VBoxEventType_OnShowWindow
483	};
484	SAFEARRAY *interestingEventsSA = NULL;
485	IEventListenerDemo *consoleListener = NULL;
486
487	/* The VirtualBox API expects enum values as VT_I4, which in the
488	* future can be hopefully relaxed. */
489	interestingEventsSA = g_pVBoxFuncs->pfnSafeArrayCreateVector(VT_I4, 0,
490	sizeof(s_auInterestingEvents)
491	/ sizeof(s_auInterestingEvents[0]));
492	g_pVBoxFuncs->pfnSafeArrayCopyInParamHelper(interestingEventsSA, &s_auInterestingEvents,
493	sizeof(s_auInterestingEvents));
494
495	consoleListener = calloc(1, sizeof(IEventListenerDemo));
496	if (consoleListener)
497	{
498	consoleListener->lpVtbl = &(g_IEventListenerDemoVtblInt.lpVtbl);
499	#ifdef WIN32
500	CoCreateFreeThreadedMarshaler((IUnknown *)consoleListener, &consoleListener->pUnkMarshaler);
501	#endif
502	IEventListenerDemo_AddRef(consoleListener);
503
504	rc = IEventSource_RegisterListener(es, (IEventListener *)consoleListener,
505	ComSafeArrayAsInParam(interestingEventsSA),
506	1 /* active */);
507	if (SUCCEEDED(rc))
508	{
509	/* Just wait here for events, no easy way to do this better
510	* as there's not much to do after this completes. */
511	printf("Entering event loop, PowerOff the machine to exit or press Ctrl-C to terminate\n");
512	fflush(stdout);
513	#ifdef WIN32
514	SetConsoleCtrlHandler(ctrlCHandler, TRUE);
515	#else
516	signal(SIGINT, (void (*)(int))ctrlCHandler);
517	#endif
518
519	while (!g_fStop)
520	g_pVBoxFuncs->pfnProcessEventQueue(250);
521
522	#ifdef WIN32
523	SetConsoleCtrlHandler(ctrlCHandler, FALSE);
524	#else
525	signal(SIGINT, SIG_DFL);
526	#endif
527	}
528	else
529	printf("Failed to register event listener.\n");
530	IEventSource_UnregisterListener(es, (IEventListener *)consoleListener);
531	#ifdef WIN32
532	if (consoleListener->pUnkMarshaler)
533	IUnknown_Release(consoleListener->pUnkMarshaler);
534	#endif
535	IEventListenerDemo_Release(consoleListener);
536	}
537	else
538	printf("Failed while allocating memory for console event listener.\n");
539	g_pVBoxFuncs->pfnSafeArrayDestroy(interestingEventsSA);
540	IEventSource_Release(es);
541	}
542	else
543	printf("Failed to get the event source instance.\n");
544	IConsole_Release(console);
545	}
546	}
547
548	#else /* !USE_ACTIVE_EVENT_LISTENER */
549
550	/**
551	* Register passive event listener for the selected VM.
552	*
553	* @param virtualBox ptr to IVirtualBox object
554	* @param session ptr to ISession object
555	*/
556	static void registerPassiveEventListener(ISession *session)
557	{
558	IConsole *console = NULL;
559	HRESULT rc;
560
561	rc = ISession_get_Console(session, &console);
562	if (SUCCEEDED(rc) && console)
563	{
564	IEventSource *es = NULL;
565	rc = IConsole_get_EventSource(console, &es);
566	if (SUCCEEDED(rc) && es)
567	{
568	static const ULONG s_auInterestingEvents[] =
569	{
570	VBoxEventType_OnMousePointerShapeChanged,
571	VBoxEventType_OnMouseCapabilityChanged,
572	VBoxEventType_OnKeyboardLedsChanged,
573	VBoxEventType_OnStateChanged,
574	VBoxEventType_OnAdditionsStateChanged,
575	VBoxEventType_OnNetworkAdapterChanged,
576	VBoxEventType_OnSerialPortChanged,
577	VBoxEventType_OnParallelPortChanged,
578	VBoxEventType_OnStorageControllerChanged,
579	VBoxEventType_OnMediumChanged,
580	VBoxEventType_OnVRDEServerChanged,
581	VBoxEventType_OnUSBControllerChanged,
582	VBoxEventType_OnUSBDeviceStateChanged,
583	VBoxEventType_OnSharedFolderChanged,
584	VBoxEventType_OnRuntimeError,
585	VBoxEventType_OnCanShowWindow,
586	VBoxEventType_OnShowWindow
587	};
588	SAFEARRAY *interestingEventsSA = NULL;
589	IEventListener *consoleListener = NULL;
590
591	/* The VirtualBox API expects enum values as VT_I4, which in the
592	* future can be hopefully relaxed. */
593	interestingEventsSA = g_pVBoxFuncs->pfnSafeArrayCreateVector(VT_I4, 0,
594	sizeof(s_auInterestingEvents)
595	/ sizeof(s_auInterestingEvents[0]));
596	g_pVBoxFuncs->pfnSafeArrayCopyInParamHelper(interestingEventsSA, &s_auInterestingEvents,
597	sizeof(s_auInterestingEvents));
598
599	rc = IEventSource_CreateListener(es, &consoleListener);
600	if (SUCCEEDED(rc) && consoleListener)
601	{
602	rc = IEventSource_RegisterListener(es, consoleListener,
603	ComSafeArrayAsInParam(interestingEventsSA),
604	0 /* passive */);
605	if (SUCCEEDED(rc))
606	{
607	/* Just wait here for events, no easy way to do this better
608	* as there's not much to do after this completes. */
609	printf("Entering event loop, PowerOff the machine to exit or press Ctrl-C to terminate\n");
610	fflush(stdout);
611	#ifdef WIN32
612	SetConsoleCtrlHandler(ctrlCHandler, TRUE);
613	#else
614	signal(SIGINT, ctrlCHandler);
615	#endif
616
617	while (!g_fStop)
618	{
619	IEvent *ev = NULL;
620	rc = IEventSource_GetEvent(es, consoleListener, 250, &ev);
621	if (FAILED(rc))
622	{
623	printf("Failed getting event: %#x\n", (unsigned)rc);
624	g_fStop = 1;
625	continue;
626	}
627	/* handle timeouts, resulting in NULL events */
628	if (!ev)
629	continue;
630	rc = EventListenerDemoProcessEvent(ev);
631	if (FAILED(rc))
632	{
633	printf("Failed processing event: %#x\n", (unsigned)rc);
634	g_fStop = 1;
635	/* finish processing the event */
636	}
637	rc = IEventSource_EventProcessed(es, consoleListener, ev);
638	if (FAILED(rc))
639	{
640	printf("Failed to mark event as processed: %#x\n", (unsigned)rc);
641	g_fStop = 1;
642	/* continue with event release */
643	}
644	if (ev)
645	{
646	IEvent_Release(ev);
647	ev = NULL;
648	}
649	}
650
651	#ifdef WIN32
652	SetConsoleCtrlHandler(ctrlCHandler, FALSE);
653	#else
654	signal(SIGINT, SIG_DFL);
655	#endif
656	}
657	else
658	printf("Failed to register event listener.\n");
659	IEventSource_UnregisterListener(es, (IEventListener *)consoleListener);
660	IEventListener_Release(consoleListener);
661	}
662	else
663	printf("Failed to create an event listener instance.\n");
664	g_pVBoxFuncs->pfnSafeArrayDestroy(interestingEventsSA);
665	IEventSource_Release(es);
666	}
667	else
668	printf("Failed to get the event source instance.\n");
669	IConsole_Release(console);
670	}
671	}
672
673	#endif /* !USE_ACTIVE_EVENT_LISTENER */
674
675	/**
676	* Print detailed error information if available.
677	* @param pszExecutable string with the executable name
678	* @param pszErrorMsg string containing the code location specific error message
679	* @param rc COM/XPCOM result code
680	*/
681	static void PrintErrorInfo(const char pszExecutable, const char pszErrorMsg, HRESULT rc)
682	{
683	IErrorInfo *ex;
684	HRESULT rc2;
685	fprintf(stderr, "%s: %s (rc=%#010x)\n", pszExecutable, pszErrorMsg, (unsigned)rc);
686	rc2 = g_pVBoxFuncs->pfnGetException(&ex);
687	if (SUCCEEDED(rc2) && ex)
688	{
689	IVirtualBoxErrorInfo *ei;
690	rc2 = IErrorInfo_QueryInterface(ex, &IID_IVirtualBoxErrorInfo, (void **)&ei);
691	if (SUCCEEDED(rc2) && ei != NULL)
692	{
693	/* got extended error info, maybe multiple infos */
694	do
695	{
696	LONG resultCode = S_OK;
697	BSTR componentUtf16 = NULL;
698	char *component = NULL;
699	BSTR textUtf16 = NULL;
700	char *text = NULL;
701	IVirtualBoxErrorInfo *ei_next = NULL;
702	fprintf(stderr, "Extended error info (IVirtualBoxErrorInfo):\n");
703
704	IVirtualBoxErrorInfo_get_ResultCode(ei, &resultCode);
705	fprintf(stderr, " resultCode=%#010x\n", (unsigned)resultCode);
706
707	IVirtualBoxErrorInfo_get_Component(ei, &componentUtf16);
708	g_pVBoxFuncs->pfnUtf16ToUtf8(componentUtf16, &component);
709	g_pVBoxFuncs->pfnComUnallocString(componentUtf16);
710	fprintf(stderr, " component=%s\n", component);
711	g_pVBoxFuncs->pfnUtf8Free(component);
712
713	IVirtualBoxErrorInfo_get_Text(ei, &textUtf16);
714	g_pVBoxFuncs->pfnUtf16ToUtf8(textUtf16, &text);
715	g_pVBoxFuncs->pfnComUnallocString(textUtf16);
716	fprintf(stderr, " text=%s\n", text);
717	g_pVBoxFuncs->pfnUtf8Free(text);
718
719	rc2 = IVirtualBoxErrorInfo_get_Next(ei, &ei_next);
720	if (FAILED(rc2))
721	ei_next = NULL;
722	IVirtualBoxErrorInfo_Release(ei);
723	ei = ei_next;
724	} while (ei);
725	}
726
727	IErrorInfo_Release(ex);
728	g_pVBoxFuncs->pfnClearException();
729	}
730	}
731
732	/**
733	* Start a VM.
734	*
735	* @param argv0 executable name
736	* @param virtualBox ptr to IVirtualBox object
737	* @param session ptr to ISession object
738	* @param id identifies the machine to start
739	*/
740	static void startVM(const char argv0, IVirtualBox virtualBox, ISession *session, BSTR id)
741	{
742	HRESULT rc;
743	IMachine *machine = NULL;
744	IProgress *progress = NULL;
745	SAFEARRAY *env = NULL;
746	BSTR sessionType;
747	SAFEARRAY *groupsSA = g_pVBoxFuncs->pfnSafeArrayOutParamAlloc();
748
749	rc = IVirtualBox_FindMachine(virtualBox, id, &machine);
750	if (FAILED(rc) \|\| !machine)
751	{
752	PrintErrorInfo(argv0, "Error: Couldn't get the Machine reference", rc);
753	return;
754	}
755
756	rc = IMachine_get_Groups(machine, ComSafeArrayAsOutTypeParam(groupsSA, BSTR));
757	if (SUCCEEDED(rc))
758	{
759	BSTR *groups = NULL;
760	ULONG cbGroups = 0;
761	ULONG i, cGroups;
762	g_pVBoxFuncs->pfnSafeArrayCopyOutParamHelper((void **)&groups, &cbGroups, VT_BSTR, groupsSA);
763	g_pVBoxFuncs->pfnSafeArrayDestroy(groupsSA);
764	cGroups = cbGroups / sizeof(groups[0]);
765	for (i = 0; i < cGroups; ++i)
766	{
767	/* Note that the use of %S might be tempting, but it is not
768	* available on all platforms, and even where it is usable it
769	* may depend on correct compiler options to make wchar_t a
770	* 16 bit number. So better play safe and use UTF-8. */
771	char *group;
772	g_pVBoxFuncs->pfnUtf16ToUtf8(groups[i], &group);
773	printf("Groups[%u]: %s\n", (unsigned)i, group);
774	g_pVBoxFuncs->pfnUtf8Free(group);
775	}
776	for (i = 0; i < cGroups; ++i)
777	g_pVBoxFuncs->pfnComUnallocString(groups[i]);
778	g_pVBoxFuncs->pfnArrayOutFree(groups);
779	}
780
781	g_pVBoxFuncs->pfnUtf8ToUtf16("gui", &sessionType);
782	rc = IMachine_LaunchVMProcess(machine, session, sessionType, ComSafeArrayAsInParam(env), &progress);
783	g_pVBoxFuncs->pfnUtf16Free(sessionType);
784	if (SUCCEEDED(rc))
785	{
786	BOOL completed;
787	LONG resultCode;
788
789	printf("Waiting for the remote session to open...\n");
790	IProgress_WaitForCompletion(progress, -1);
791
792	rc = IProgress_get_Completed(progress, &completed);
793	if (FAILED(rc))
794	fprintf(stderr, "Error: GetCompleted status failed\n");
795
796	IProgress_get_ResultCode(progress, &resultCode);
797	if (FAILED(resultCode))
798	{
799	IVirtualBoxErrorInfo *errorInfo;
800	BSTR textUtf16;
801	char *text;
802
803	IProgress_get_ErrorInfo(progress, &errorInfo);
804	IVirtualBoxErrorInfo_get_Text(errorInfo, &textUtf16);
805	g_pVBoxFuncs->pfnUtf16ToUtf8(textUtf16, &text);
806	printf("Error: %s\n", text);
807
808	g_pVBoxFuncs->pfnComUnallocString(textUtf16);
809	g_pVBoxFuncs->pfnUtf8Free(text);
810	IVirtualBoxErrorInfo_Release(errorInfo);
811	}
812	else
813	{
814	fprintf(stderr, "VM process has been successfully started\n");
815
816	/* Kick off the event listener demo part, which is quite separate.
817	* Ignore it if you need a more basic sample. */
818	#ifdef USE_ACTIVE_EVENT_LISTENER
819	registerActiveEventListener(virtualBox, session);
820	#else
821	registerPassiveEventListener(session);
822	#endif
823	}
824	IProgress_Release(progress);
825	}
826	else
827	PrintErrorInfo(argv0, "Error: LaunchVMProcess failed", rc);
828
829	/* It's important to always release resources. */
830	IMachine_Release(machine);
831	}
832
833	/**
834	* List the registered VMs.
835	*
836	* @param argv0 executable name
837	* @param virtualBox ptr to IVirtualBox object
838	* @param session ptr to ISession object
839	*/
840	static void listVMs(const char argv0, IVirtualBox virtualBox, ISession *session)
841	{
842	HRESULT rc;
843	SAFEARRAY *machinesSA = g_pVBoxFuncs->pfnSafeArrayOutParamAlloc();
844	IMachine **machines = NULL;
845	ULONG machineCnt = 0;
846	ULONG i;
847	unsigned start_id;
848
849	/*
850	* Get the list of all registered VMs.
851	*/
852	rc = IVirtualBox_get_Machines(virtualBox, ComSafeArrayAsOutIfaceParam(machinesSA, IMachine *));
853	if (FAILED(rc))
854	{
855	PrintErrorInfo(argv0, "could not get list of machines", rc);
856	return;
857	}
858
859	/*
860	* Extract interface pointers from machinesSA, and update the reference
861	* counter of each object, as destroying machinesSA would call Release.
862	*/
863	g_pVBoxFuncs->pfnSafeArrayCopyOutIfaceParamHelper((IUnknown ***)&machines, &machineCnt, machinesSA);
864	g_pVBoxFuncs->pfnSafeArrayDestroy(machinesSA);
865
866	if (!machineCnt)
867	{
868	g_pVBoxFuncs->pfnArrayOutFree(machines);
869	printf("\tNo VMs\n");
870	return;
871	}
872
873	printf("VM List:\n\n");
874
875	/*
876	* Iterate through the collection.
877	*/
878	for (i = 0; i < machineCnt; ++i)
879	{
880	IMachine *machine = machines[i];
881	BOOL isAccessible = FALSE;
882
883	printf("\tMachine #%u\n", (unsigned)i);
884
885	if (!machine)
886	{
887	printf("\t(skipped, NULL)\n");
888	continue;
889	}
890
891	IMachine_get_Accessible(machine, &isAccessible);
892
893	if (isAccessible)
894	{
895	BSTR machineNameUtf16;
896	char *machineName;
897
898	IMachine_get_Name(machine, &machineNameUtf16);
899	g_pVBoxFuncs->pfnUtf16ToUtf8(machineNameUtf16,&machineName);
900	g_pVBoxFuncs->pfnComUnallocString(machineNameUtf16);
901	printf("\tName: %s\n", machineName);
902	g_pVBoxFuncs->pfnUtf8Free(machineName);
903	}
904	else
905	printf("\tName: <inaccessible>\n");
906
907	{
908	BSTR uuidUtf16;
909	char *uuidUtf8;
910
911	IMachine_get_Id(machine, &uuidUtf16);
912	g_pVBoxFuncs->pfnUtf16ToUtf8(uuidUtf16, &uuidUtf8);
913	g_pVBoxFuncs->pfnComUnallocString(uuidUtf16);
914	printf("\tUUID: %s\n", uuidUtf8);
915	g_pVBoxFuncs->pfnUtf8Free(uuidUtf8);
916	}
917
918	if (isAccessible)
919	{
920	{
921	BSTR configFileUtf16;
922	char *configFileUtf8;
923
924	IMachine_get_SettingsFilePath(machine, &configFileUtf16);
925	g_pVBoxFuncs->pfnUtf16ToUtf8(configFileUtf16, &configFileUtf8);
926	g_pVBoxFuncs->pfnComUnallocString(configFileUtf16);
927	printf("\tConfig file: %s\n", configFileUtf8);
928	g_pVBoxFuncs->pfnUtf8Free(configFileUtf8);
929	}
930
931	{
932	ULONG memorySize;
933
934	IMachine_get_MemorySize(machine, &memorySize);
935	printf("\tMemory size: %uMB\n", (unsigned)memorySize);
936	}
937
938	{
939	BSTR typeId;
940	BSTR osNameUtf16;
941	char *osName;
942	IGuestOSType *osType = NULL;
943
944	IMachine_get_OSTypeId(machine, &typeId);
945	IVirtualBox_GetGuestOSType(virtualBox, typeId, &osType);
946	g_pVBoxFuncs->pfnComUnallocString(typeId);
947	IGuestOSType_get_Description(osType, &osNameUtf16);
948	g_pVBoxFuncs->pfnUtf16ToUtf8(osNameUtf16,&osName);
949	g_pVBoxFuncs->pfnComUnallocString(osNameUtf16);
950	printf("\tGuest OS: %s\n\n", osName);
951	g_pVBoxFuncs->pfnUtf8Free(osName);
952
953	IGuestOSType_Release(osType);
954	}
955	}
956	}
957
958	/*
959	* Let the user chose a machine to start.
960	*/
961	printf("Type Machine# to start (0 - %u) or 'quit' to do nothing: ",
962	(unsigned)(machineCnt - 1));
963	fflush(stdout);
964
965	if (scanf("%u", &start_id) == 1 && start_id < machineCnt)
966	{
967	IMachine *machine = machines[start_id];
968
969	if (machine)
970	{
971	BSTR uuidUtf16 = NULL;
972
973	IMachine_get_Id(machine, &uuidUtf16);
974	startVM(argv0, virtualBox, session, uuidUtf16);
975	g_pVBoxFuncs->pfnComUnallocString(uuidUtf16);
976	}
977	}
978
979	/*
980	* Don't forget to release the objects in the array.
981	*/
982	for (i = 0; i < machineCnt; ++i)
983	{
984	IMachine *machine = machines[i];
985
986	if (machine)
987	IMachine_Release(machine);
988	}
989	g_pVBoxFuncs->pfnArrayOutFree(machines);
990	}
991
992	/* Main - Start the ball rolling. */
993
994	int main(int argc, char **argv)
995	{
996	IVirtualBoxClient *vboxclient = NULL;
997	IVirtualBox *vbox = NULL;
998	ISession *session = NULL;
999	ULONG revision = 0;
1000	BSTR versionUtf16 = NULL;
1001	BSTR homefolderUtf16 = NULL;
1002	HRESULT rc; /* Result code of various function (method) calls. */
1003	(void)argc;
1004
1005	printf("Starting main()\n");
1006
1007	if (VBoxCGlueInit())
1008	{
1009	fprintf(stderr, "%s: FATAL: VBoxCGlueInit failed: %s\n",
1010	argv[0], g_szVBoxErrMsg);
1011	return EXIT_FAILURE;
1012	}
1013
1014	{
1015	unsigned ver = g_pVBoxFuncs->pfnGetVersion();
1016	printf("VirtualBox version: %u.%u.%u\n", ver / 1000000, ver / 1000 % 1000, ver % 1000);
1017	ver = g_pVBoxFuncs->pfnGetAPIVersion();
1018	printf("VirtualBox API version: %u.%u\n", ver / 1000, ver % 1000);
1019	}
1020
1021	g_pVBoxFuncs->pfnClientInitialize(NULL, &vboxclient);
1022	if (!vboxclient)
1023	{
1024	fprintf(stderr, "%s: FATAL: could not get VirtualBoxClient reference\n", argv[0]);
1025	return EXIT_FAILURE;
1026	}
1027
1028	printf("----------------------------------------------------\n");
1029
1030	rc = IVirtualBoxClient_get_VirtualBox(vboxclient, &vbox);
1031	if (FAILED(rc) \|\| !vbox)
1032	{
1033	PrintErrorInfo(argv[0], "FATAL: could not get VirtualBox reference", rc);
1034	return EXIT_FAILURE;
1035	}
1036	rc = IVirtualBoxClient_get_Session(vboxclient, &session);
1037	if (FAILED(rc) \|\| !session)
1038	{
1039	PrintErrorInfo(argv[0], "FATAL: could not get Session reference", rc);
1040	return EXIT_FAILURE;
1041	}
1042
1043	#ifdef USE_ACTIVE_EVENT_LISTENER
1044	# ifdef WIN32
1045	rc = LoadTypeInfo(&IID_IEventListener, &g_pTInfoIEventListener);
1046	if (FAILED(rc) \|\| !g_pTInfoIEventListener)
1047	{
1048	PrintErrorInfo(argv[0], "FATAL: could not get type information for IEventListener", rc);
1049	return EXIT_FAILURE;
1050	}
1051	# endif /* WIN32 */
1052	#endif /* USE_ACTIVE_EVENT_LISTENER */
1053
1054	/*
1055	* Now ask for revision, version and home folder information of
1056	* this vbox. Were not using fancy macros here so it
1057	* remains easy to see how we access C++'s vtable.
1058	*/
1059
1060	/* 1. Revision */
1061	rc = IVirtualBox_get_Revision(vbox, &revision);
1062	if (SUCCEEDED(rc))
1063	printf("\tRevision: %u\n", (unsigned)revision);
1064	else
1065	PrintErrorInfo(argv[0], "GetRevision() failed", rc);
1066
1067	/* 2. Version */
1068	rc = IVirtualBox_get_Version(vbox, &versionUtf16);
1069	if (SUCCEEDED(rc))
1070	{
1071	char *version = NULL;
1072	g_pVBoxFuncs->pfnUtf16ToUtf8(versionUtf16, &version);
1073	printf("\tVersion: %s\n", version);
1074	g_pVBoxFuncs->pfnUtf8Free(version);
1075	g_pVBoxFuncs->pfnComUnallocString(versionUtf16);
1076	}
1077	else
1078	PrintErrorInfo(argv[0], "GetVersion() failed", rc);
1079
1080	/* 3. Home Folder */
1081	rc = IVirtualBox_get_HomeFolder(vbox, &homefolderUtf16);
1082	if (SUCCEEDED(rc))
1083	{
1084	char *homefolder = NULL;
1085	g_pVBoxFuncs->pfnUtf16ToUtf8(homefolderUtf16, &homefolder);
1086	printf("\tHomeFolder: %s\n", homefolder);
1087	g_pVBoxFuncs->pfnUtf8Free(homefolder);
1088	g_pVBoxFuncs->pfnComUnallocString(homefolderUtf16);
1089	}
1090	else
1091	PrintErrorInfo(argv[0], "GetHomeFolder() failed", rc);
1092
1093	listVMs(argv[0], vbox, session);
1094	ISession_UnlockMachine(session);
1095
1096	printf("----------------------------------------------------\n");
1097
1098	/*
1099	* Do as mom told us: always clean up after yourself.
1100	*/
1101	#ifdef USE_ACTIVE_EVENT_LISTENER
1102	# ifdef WIN32
1103	if (g_pTInfoIEventListener)
1104	{
1105	ITypeInfo_Release(g_pTInfoIEventListener);
1106	g_pTInfoIEventListener = NULL;
1107	}
1108	# endif /* WIN32 */
1109	#endif /* USE_ACTIVE_EVENT_LISTENER */
1110
1111	if (session)
1112	{
1113	ISession_Release(session);
1114	session = NULL;
1115	}
1116	if (vbox)
1117	{
1118	IVirtualBox_Release(vbox);
1119	vbox = NULL;
1120	}
1121	if (vboxclient)
1122	{
1123	IVirtualBoxClient_Release(vboxclient);
1124	vboxclient = NULL;
1125	}
1126
1127	g_pVBoxFuncs->pfnClientUninitialize();
1128	VBoxCGlueTerm();
1129	printf("Finished main()\n");
1130
1131	return 0;
1132	}
1133	/* vim: set ts=4 sw=4 et: */

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source: vbox/trunk/src/VBox/Main/cbinding/tstCAPIGlue.c@ 84246

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