server.cpp@ 59967

Last change on this file since 59967 was 58579, checked in by vboxsync, 9 years ago
Main/src-server/xpcom/server.cpp: switch from raw XPCOM event queue use to using NativeEventQueue glue code, which processes Darwin's system events, too.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 29.6 KB

Line
1	/* $Id: server.cpp 58579 2015-11-05 13:18:21Z vboxsync $ */
2	/** @file
3	* XPCOM server process (VBoxSVC) start point.
4	*/
5
6	/*
7	* Copyright (C) 2004-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#include <ipcIService.h>
19	#include <ipcCID.h>
20
21	#include <nsIComponentRegistrar.h>
22
23	#include <nsGenericFactory.h>
24
25	#include "prio.h"
26	#include "prproces.h"
27
28	#include "server.h"
29
30	#include "Logging.h"
31
32	#include <VBox/param.h>
33
34	#include <iprt/buildconfig.h>
35	#include <iprt/initterm.h>
36	#include <iprt/critsect.h>
37	#include <iprt/getopt.h>
38	#include <iprt/message.h>
39	#include <iprt/string.h>
40	#include <iprt/stream.h>
41	#include <iprt/path.h>
42	#include <iprt/timer.h>
43	#include <iprt/env.h>
44
45	#include <signal.h> // for the signal handler
46	#include <stdlib.h>
47	#include <unistd.h>
48	#include <errno.h>
49	#include <fcntl.h>
50	#include <sys/stat.h>
51	#include <sys/resource.h>
52
53	/////////////////////////////////////////////////////////////////////////////
54	// VirtualBox component instantiation
55	/////////////////////////////////////////////////////////////////////////////
56
57	#include <nsIGenericFactory.h>
58	#include <VirtualBox_XPCOM.h>
59
60	#include "VBox/com/NativeEventQueue.h"
61
62	#include "ApplianceImpl.h"
63	#include "AudioAdapterImpl.h"
64	#include "BandwidthControlImpl.h"
65	#include "BandwidthGroupImpl.h"
66	#include "NetworkServiceRunner.h"
67	#include "DHCPServerImpl.h"
68	#include "GuestOSTypeImpl.h"
69	#include "HostImpl.h"
70	#include "HostNetworkInterfaceImpl.h"
71	#include "MachineImpl.h"
72	#include "MediumFormatImpl.h"
73	#include "MediumImpl.h"
74	#include "NATEngineImpl.h"
75	#include "NetworkAdapterImpl.h"
76	#include "ParallelPortImpl.h"
77	#include "ProgressProxyImpl.h"
78	#include "SerialPortImpl.h"
79	#include "SharedFolderImpl.h"
80	#include "SnapshotImpl.h"
81	#include "StorageControllerImpl.h"
82	#include "SystemPropertiesImpl.h"
83	#include "USBControllerImpl.h"
84	#include "USBDeviceFiltersImpl.h"
85	#include "VFSExplorerImpl.h"
86	#include "VirtualBoxImpl.h"
87	#include "VRDEServerImpl.h"
88	#ifdef VBOX_WITH_USB
89	# include "HostUSBDeviceImpl.h"
90	# include "USBDeviceFilterImpl.h"
91	# include "USBDeviceImpl.h"
92	#endif
93	#ifdef VBOX_WITH_EXTPACK
94	# include "ExtPackManagerImpl.h"
95	#endif
96	# include "NATNetworkImpl.h"
97
98	// This needs to stay - it is needed by the service registration below, and
99	// is defined in the automatically generated VirtualBoxWrap.cpp
100	extern nsIClassInfo *NS_CLASSINFO_NAME(VirtualBoxWrap);
101	NS_DECL_CI_INTERFACE_GETTER(VirtualBoxWrap)
102
103	////////////////////////////////////////////////////////////////////////////////
104
105	static bool gAutoShutdown = false;
106	/** Delay before shutting down the VirtualBox server after the last
107	* VirtualBox instance is released, in ms */
108	static uint32_t gShutdownDelayMs = 5000;
109
110	static com::NativeEventQueue *gEventQ = NULL;
111	static PRBool volatile gKeepRunning = PR_TRUE;
112	static PRBool volatile gAllowSigUsrQuit = PR_TRUE;
113
114	/////////////////////////////////////////////////////////////////////////////
115
116	/**
117	* VirtualBox class factory that destroys the created instance right after
118	* the last reference to it is released by the client, and recreates it again
119	* when necessary (so VirtualBox acts like a singleton object).
120	*/
121	class VirtualBoxClassFactory : public VirtualBox
122	{
123	public:
124
125	virtual ~VirtualBoxClassFactory()
126	{
127	LogFlowFunc(("Deleting VirtualBox...\n"));
128
129	FinalRelease();
130	sInstance = NULL;
131
132	LogFlowFunc(("VirtualBox object deleted.\n"));
133	RTPrintf("Informational: VirtualBox object deleted.\n");
134	}
135
136	NS_IMETHOD_(nsrefcnt) Release()
137	{
138	/* we overload Release() to guarantee the VirtualBox destructor is
139	* always called on the main thread */
140
141	nsrefcnt count = VirtualBox::Release();
142
143	if (count == 1)
144	{
145	/* the last reference held by clients is being released
146	* (see GetInstance()) */
147
148	bool onMainThread = RTThreadIsMain(RTThreadSelf());
149	PRBool timerStarted = PR_FALSE;
150
151	/* sTimer is null if this call originates from FactoryDestructor()*/
152	if (sTimer != NULL)
153	{
154	LogFlowFunc(("Last VirtualBox instance was released.\n"));
155	LogFlowFunc(("Scheduling server shutdown in %u ms...\n",
156	gShutdownDelayMs));
157
158	/* make sure the previous timer (if any) is stopped;
159	* otherwise RTTimerStart() will definitely fail. */
160	RTTimerLRStop(sTimer);
161
162	int vrc = RTTimerLRStart(sTimer, gShutdownDelayMs * RT_NS_1MS_64);
163	AssertRC(vrc);
164	timerStarted = SUCCEEDED(vrc);
165	}
166	else
167	{
168	LogFlowFunc(("Last VirtualBox instance was released "
169	"on XPCOM shutdown.\n"));
170	Assert(onMainThread);
171	}
172
173	gAllowSigUsrQuit = PR_TRUE;
174
175	if (!timerStarted)
176	{
177	if (!onMainThread)
178	{
179	/* Failed to start the timer, post the shutdown event
180	* manually if not on the main thread already. */
181	ShutdownTimer(NULL, NULL, 0);
182	}
183	else
184	{
185	/* Here we come if:
186	*
187	* a) gEventQ is 0 which means either FactoryDestructor() is called
188	* or the IPC/DCONNECT shutdown sequence is initiated by the
189	* XPCOM shutdown routine (NS_ShutdownXPCOM()), which always
190	* happens on the main thread.
191	*
192	* b) gEventQ has reported we're on the main thread. This means
193	* that DestructEventHandler() has been called, but another
194	* client was faster and requested VirtualBox again.
195	*
196	* In either case, there is nothing to do.
197	*
198	* Note: case b) is actually no more valid since we don't
199	* call Release() from DestructEventHandler() in this case
200	* any more. Thus, we assert below.
201	*/
202
203	Assert(!gEventQ);
204	}
205	}
206	}
207
208	return count;
209	}
210
211	class MaybeQuitEvent : public NativeEvent
212	{
213	/* called on the main thread */
214	void *handler()
215	{
216	LogFlowFuncEnter();
217
218	Assert(RTCritSectIsInitialized(&sLock));
219
220	/* stop accepting GetInstance() requests on other threads during
221	* possible destruction */
222	RTCritSectEnter(&sLock);
223
224	nsrefcnt count = 0;
225
226	/* sInstance is NULL here if it was deleted immediately after
227	* creation due to initialization error. See GetInstance(). */
228	if (sInstance != NULL)
229	{
230	/* Release the guard reference added in GetInstance() */
231	count = sInstance->Release();
232	}
233
234	if (count == 0)
235	{
236	if (gAutoShutdown)
237	{
238	Assert(sInstance == NULL);
239	LogFlowFunc(("Terminating the server process...\n"));
240	/* make it leave the event loop */
241	gKeepRunning = PR_FALSE;
242	}
243	else
244	LogFlowFunc(("No automatic shutdown.\n"));
245	}
246	else
247	{
248	/* This condition is quite rare: a new client happened to
249	* connect after this event has been posted to the main queue
250	* but before it started to process it. */
251	LogFlowFunc(("Destruction is canceled (refcnt=%d).\n", count));
252	}
253
254	RTCritSectLeave(&sLock);
255
256	LogFlowFuncLeave();
257	return NULL;
258	}
259	};
260
261	static DECLCALLBACK(void) ShutdownTimer(RTTIMERLR hTimerLR, void pvUser, uint64_t /iTick*/)
262	{
263	NOREF(hTimerLR);
264	NOREF(pvUser);
265
266	/* A "too late" event is theoretically possible if somebody
267	* manually ended the server after a destruction has been scheduled
268	* and this method was so lucky that it got a chance to run before
269	* the timer was killed. */
270	com::NativeEventQueue *q = gEventQ;
271	AssertReturnVoid(q);
272
273	/* post a quit event to the main queue */
274	MaybeQuitEvent *ev = new MaybeQuitEvent();
275	if (!q->postEvent(ev))
276	delete ev;
277
278	/* A failure above means we've been already stopped (for example
279	* by Ctrl-C). FactoryDestructor() (NS_ShutdownXPCOM())
280	* will do the job. Nothing to do. */
281	}
282
283	static NS_IMETHODIMP FactoryConstructor()
284	{
285	LogFlowFunc(("\n"));
286
287	/* create a critsect to protect object construction */
288	if (RT_FAILURE(RTCritSectInit(&sLock)))
289	return NS_ERROR_OUT_OF_MEMORY;
290
291	int vrc = RTTimerLRCreateEx(&sTimer, 0, 0, ShutdownTimer, NULL);
292	if (RT_FAILURE(vrc))
293	{
294	LogFlowFunc(("Failed to create a timer! (vrc=%Rrc)\n", vrc));
295	return NS_ERROR_FAILURE;
296	}
297
298	return NS_OK;
299	}
300
301	static NS_IMETHODIMP FactoryDestructor()
302	{
303	LogFlowFunc(("\n"));
304
305	RTTimerLRDestroy(sTimer);
306	sTimer = NULL;
307
308	if (sInstance != NULL)
309	{
310	/* Either posting a destruction event failed for some reason (most
311	* likely, the quit event has been received before the last release),
312	* or the client has terminated abnormally w/o releasing its
313	* VirtualBox instance (so NS_ShutdownXPCOM() is doing a cleanup).
314	* Release the guard reference we added in GetInstance(). */
315	sInstance->Release();
316	}
317
318	/* Destroy lock after releasing the VirtualBox instance, otherwise
319	* there are races with cleanup. */
320	RTCritSectDelete(&sLock);
321
322	return NS_OK;
323	}
324
325	static nsresult GetInstance(VirtualBox **inst)
326	{
327	LogFlowFunc(("Getting VirtualBox object...\n"));
328
329	RTCritSectEnter(&sLock);
330
331	if (!gKeepRunning)
332	{
333	LogFlowFunc(("Process termination requested first. Refusing.\n"));
334
335	RTCritSectLeave(&sLock);
336
337	/* this rv is what CreateInstance() on the client side returns
338	* when the server process stops accepting events. Do the same
339	* here. The client wrapper should attempt to start a new process in
340	* response to a failure from us. */
341	return NS_ERROR_ABORT;
342	}
343
344	nsresult rv = NS_OK;
345
346	if (sInstance == NULL)
347	{
348	LogFlowFunc(("Creating new VirtualBox object...\n"));
349	sInstance = new VirtualBoxClassFactory();
350	if (sInstance != NULL)
351	{
352	/* make an extra AddRef to take the full control
353	* on the VirtualBox destruction (see FinalRelease()) */
354	sInstance->AddRef();
355
356	sInstance->AddRef(); /* protect FinalConstruct() */
357	rv = sInstance->FinalConstruct();
358	RTPrintf("Informational: VirtualBox object created (rc=%Rhrc).\n", rv);
359	if (NS_FAILED(rv))
360	{
361	/* On failure diring VirtualBox initialization, delete it
362	* immediately on the current thread by releasing all
363	* references in order to properly schedule the server
364	* shutdown. Since the object is fully deleted here, there
365	* is a chance to fix the error and request a new
366	* instantiation before the server terminates. However,
367	* the main reason to maintain the shutdown delay on
368	* failure is to let the front-end completely fetch error
369	* info from a server-side IVirtualBoxErrorInfo object. */
370	sInstance->Release();
371	sInstance->Release();
372	Assert(sInstance == NULL);
373	}
374	else
375	{
376	/* On success, make sure the previous timer is stopped to
377	* cancel a scheduled server termination (if any). */
378	gAllowSigUsrQuit = PR_FALSE;
379	RTTimerLRStop(sTimer);
380	}
381	}
382	else
383	{
384	rv = NS_ERROR_OUT_OF_MEMORY;
385	}
386	}
387	else
388	{
389	LogFlowFunc(("Using existing VirtualBox object...\n"));
390	nsrefcnt count = sInstance->AddRef();
391	Assert(count > 1);
392
393	if (count == 2)
394	{
395	LogFlowFunc(("Another client has requested a reference to VirtualBox, canceling destruction...\n"));
396
397	/* make sure the previous timer is stopped */
398	gAllowSigUsrQuit = PR_FALSE;
399	RTTimerLRStop(sTimer);
400	}
401	}
402
403	*inst = sInstance;
404
405	RTCritSectLeave(&sLock);
406
407	return rv;
408	}
409
410	private:
411
412	/* Don't be confused that sInstance is of the *ClassFactory type. This is
413	* actually a singleton instance (*ClassFactory inherits the singleton
414	* class; we combined them just for "simplicity" and used "static" for
415	* factory methods. *ClassFactory here is necessary for a couple of extra
416	* methods. */
417
418	static VirtualBoxClassFactory *sInstance;
419	static RTCRITSECT sLock;
420
421	static RTTIMERLR sTimer;
422	};
423
424	VirtualBoxClassFactory *VirtualBoxClassFactory::sInstance = NULL;
425	RTCRITSECT VirtualBoxClassFactory::sLock;
426
427	RTTIMERLR VirtualBoxClassFactory::sTimer = NIL_RTTIMERLR;
428
429	NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR_WITH_RC(VirtualBox, VirtualBoxClassFactory::GetInstance)
430
431	////////////////////////////////////////////////////////////////////////////////
432
433	typedef NSFactoryDestructorProcPtr NSFactoryConstructorProcPtr;
434
435	/**
436	* Enhanced module component information structure.
437	*
438	* nsModuleComponentInfo lacks the factory construction callback, here we add
439	* it. This callback is called straight after a nsGenericFactory instance is
440	* successfully created in RegisterSelfComponents.
441	*/
442	struct nsModuleComponentInfoPlusFactoryConstructor
443	{
444	/** standard module component information */
445	const nsModuleComponentInfo *mpModuleComponentInfo;
446	/** (optional) Factory Construction Callback */
447	NSFactoryConstructorProcPtr mFactoryConstructor;
448	};
449
450	/////////////////////////////////////////////////////////////////////////////
451
452	/**
453	* Helper function to register self components upon start-up
454	* of the out-of-proc server.
455	*/
456	static nsresult
457	RegisterSelfComponents(nsIComponentRegistrar *registrar,
458	const nsModuleComponentInfoPlusFactoryConstructor *aComponents,
459	PRUint32 count)
460	{
461	nsresult rc = NS_OK;
462	const nsModuleComponentInfoPlusFactoryConstructor *info = aComponents;
463	for (PRUint32 i = 0; i < count && NS_SUCCEEDED(rc); i++, info++)
464	{
465	/* skip components w/o a constructor */
466	if (!info->mpModuleComponentInfo->mConstructor)
467	continue;
468	/* create a new generic factory for a component and register it */
469	nsIGenericFactory *factory;
470	rc = NS_NewGenericFactory(&factory, info->mpModuleComponentInfo);
471	if (NS_SUCCEEDED(rc) && info->mFactoryConstructor)
472	{
473	rc = info->mFactoryConstructor();
474	if (NS_FAILED(rc))
475	NS_RELEASE(factory);
476	}
477	if (NS_SUCCEEDED(rc))
478	{
479	rc = registrar->RegisterFactory(info->mpModuleComponentInfo->mCID,
480	info->mpModuleComponentInfo->mDescription,
481	info->mpModuleComponentInfo->mContractID,
482	factory);
483	NS_RELEASE(factory);
484	}
485	}
486	return rc;
487	}
488
489	/////////////////////////////////////////////////////////////////////////////
490
491	static ipcIService *gIpcServ = nsnull;
492	static const char *g_pszPidFile = NULL;
493
494	class ForceQuitEvent : public NativeEvent
495	{
496	void *handler()
497	{
498	LogFlowFunc(("\n"));
499
500	gKeepRunning = PR_FALSE;
501
502	if (g_pszPidFile)
503	RTFileDelete(g_pszPidFile);
504
505	return NULL;
506	}
507	};
508
509	static void signal_handler(int sig)
510	{
511	com::NativeEventQueue *q = gEventQ;
512	if (q && gKeepRunning)
513	{
514	if (sig == SIGUSR1)
515	{
516	if (gAllowSigUsrQuit)
517	{
518	VirtualBoxClassFactory::MaybeQuitEvent *ev = new VirtualBoxClassFactory::MaybeQuitEvent();
519	if (!q->postEvent(ev))
520	delete ev;
521	}
522	/* else do nothing */
523	}
524	else
525	{
526	/* post a force quit event to the queue */
527	ForceQuitEvent *ev = new ForceQuitEvent();
528	if (!q->postEvent(ev))
529	delete ev;
530	}
531	}
532	}
533
534	static nsresult vboxsvcSpawnDaemonByReExec(const char pszPath, bool fAutoShutdown, const char pszPidFile)
535	{
536	PRFileDesc readable = nsnull, writable = nsnull;
537	PRProcessAttr *attr = nsnull;
538	nsresult rv = NS_ERROR_FAILURE;
539	PRFileDesc *devNull;
540	unsigned args_index = 0;
541	// The ugly casts are necessary because the PR_CreateProcessDetached has
542	// a const array of writable strings as a parameter. It won't write. */
543	char * args[1 + 1 + 2 + 1];
544	args[args_index++] = (char *)pszPath;
545	if (fAutoShutdown)
546	args[args_index++] = (char *)"--auto-shutdown";
547	if (pszPidFile)
548	{
549	args[args_index++] = (char *)"--pidfile";
550	args[args_index++] = (char *)pszPidFile;
551	}
552	args[args_index++] = 0;
553
554	// Use a pipe to determine when the daemon process is in the position
555	// to actually process requests. The daemon will write "READY" to the pipe.
556	if (PR_CreatePipe(&readable, &writable) != PR_SUCCESS)
557	goto end;
558	PR_SetFDInheritable(writable, PR_TRUE);
559
560	attr = PR_NewProcessAttr();
561	if (!attr)
562	goto end;
563
564	if (PR_ProcessAttrSetInheritableFD(attr, writable, VBOXSVC_STARTUP_PIPE_NAME) != PR_SUCCESS)
565	goto end;
566
567	devNull = PR_Open("/dev/null", PR_RDWR, 0);
568	if (!devNull)
569	goto end;
570
571	PR_ProcessAttrSetStdioRedirect(attr, PR_StandardInput, devNull);
572	PR_ProcessAttrSetStdioRedirect(attr, PR_StandardOutput, devNull);
573	PR_ProcessAttrSetStdioRedirect(attr, PR_StandardError, devNull);
574
575	if (PR_CreateProcessDetached(pszPath, (char * const *)args, nsnull, attr) != PR_SUCCESS)
576	goto end;
577
578	// Close /dev/null
579	PR_Close(devNull);
580	// Close the child end of the pipe to make it the only owner of the
581	// file descriptor, so that unexpected closing can be detected.
582	PR_Close(writable);
583	writable = nsnull;
584
585	char msg[10];
586	memset(msg, '\0', sizeof(msg));
587	if ( PR_Read(readable, msg, sizeof(msg)-1) != 5
588	\|\| strcmp(msg, "READY"))
589	goto end;
590
591	rv = NS_OK;
592
593	end:
594	if (readable)
595	PR_Close(readable);
596	if (writable)
597	PR_Close(writable);
598	if (attr)
599	PR_DestroyProcessAttr(attr);
600	return rv;
601	}
602
603	int main(int argc, char **argv)
604	{
605	/*
606	* Initialize the VBox runtime without loading
607	* the support driver
608	*/
609	int vrc = RTR3InitExe(argc, &argv, 0);
610	if (RT_FAILURE(vrc))
611	return RTMsgInitFailure(vrc);
612
613	static const RTGETOPTDEF s_aOptions[] =
614	{
615	{ "--automate", 'a', RTGETOPT_REQ_NOTHING },
616	{ "--auto-shutdown", 'A', RTGETOPT_REQ_NOTHING },
617	{ "--daemonize", 'd', RTGETOPT_REQ_NOTHING },
618	{ "--shutdown-delay", 'D', RTGETOPT_REQ_UINT32 },
619	{ "--pidfile", 'p', RTGETOPT_REQ_STRING },
620	{ "--logfile", 'F', RTGETOPT_REQ_STRING },
621	{ "--logrotate", 'R', RTGETOPT_REQ_UINT32 },
622	{ "--logsize", 'S', RTGETOPT_REQ_UINT64 },
623	{ "--loginterval", 'I', RTGETOPT_REQ_UINT32 }
624	};
625
626	const char *pszLogFile = NULL;
627	uint32_t cHistory = 10; // enable log rotation, 10 files
628	uint32_t uHistoryFileTime = RT_SEC_1DAY; // max 1 day per file
629	uint64_t uHistoryFileSize = 100 * _1M; // max 100MB per file
630	bool fDaemonize = false;
631	PRFileDesc *daemon_pipe_wr = nsnull;
632
633	RTGETOPTSTATE GetOptState;
634	vrc = RTGetOptInit(&GetOptState, argc, argv, &s_aOptions[0], RT_ELEMENTS(s_aOptions), 1, 0 /fFlags/);
635	AssertRC(vrc);
636
637	RTGETOPTUNION ValueUnion;
638	while ((vrc = RTGetOpt(&GetOptState, &ValueUnion)))
639	{
640	switch (vrc)
641	{
642	case 'a':
643	/* --automate mode means we are started by XPCOM on
644	* demand. Daemonize ourselves and activate
645	* auto-shutdown. */
646	gAutoShutdown = true;
647	fDaemonize = true;
648	break;
649
650	case 'A':
651	/* --auto-shutdown mode means we're already daemonized. */
652	gAutoShutdown = true;
653	break;
654
655	case 'd':
656	fDaemonize = true;
657	break;
658
659	case 'D':
660	gShutdownDelayMs = ValueUnion.u32;
661	break;
662
663	case 'p':
664	g_pszPidFile = ValueUnion.psz;
665	break;
666
667	case 'F':
668	pszLogFile = ValueUnion.psz;
669	break;
670
671	case 'R':
672	cHistory = ValueUnion.u32;
673	break;
674
675	case 'S':
676	uHistoryFileSize = ValueUnion.u64;
677	break;
678
679	case 'I':
680	uHistoryFileTime = ValueUnion.u32;
681	break;
682
683	case 'h':
684	RTPrintf("no help\n");
685	return 1;
686
687	case 'V':
688	RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
689	return 0;
690
691	default:
692	return RTGetOptPrintError(vrc, &ValueUnion);
693	}
694	}
695
696	if (fDaemonize)
697	{
698	vboxsvcSpawnDaemonByReExec(argv[0], gAutoShutdown, g_pszPidFile);
699	exit(126);
700	}
701
702	nsresult rc;
703
704	/** @todo Merge this code with svcmain.cpp (use Logging.cpp?). */
705	char szLogFile[RTPATH_MAX];
706	if (!pszLogFile)
707	{
708	vrc = com::GetVBoxUserHomeDirectory(szLogFile, sizeof(szLogFile));
709	if (RT_SUCCESS(vrc))
710	vrc = RTPathAppend(szLogFile, sizeof(szLogFile), "VBoxSVC.log");
711	}
712	else
713	{
714	if (!RTStrPrintf(szLogFile, sizeof(szLogFile), "%s", pszLogFile))
715	vrc = VERR_NO_MEMORY;
716	}
717	if (RT_FAILURE(vrc))
718	return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to create logging file name, rc=%Rrc", vrc);
719
720	char szError[RTPATH_MAX + 128];
721	vrc = com::VBoxLogRelCreate("XPCOM Server", szLogFile,
722	RTLOGFLAGS_PREFIX_THREAD \| RTLOGFLAGS_PREFIX_TIME_PROG,
723	VBOXSVC_LOG_DEFAULT, "VBOXSVC_RELEASE_LOG",
724	RTLOGDEST_FILE, UINT32_MAX /* cMaxEntriesPerGroup */,
725	cHistory, uHistoryFileTime, uHistoryFileSize,
726	szError, sizeof(szError));
727	if (RT_FAILURE(vrc))
728	return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to open release log (%s, %Rrc)", szError, vrc);
729
730	daemon_pipe_wr = PR_GetInheritedFD(VBOXSVC_STARTUP_PIPE_NAME);
731	RTEnvUnset("NSPR_INHERIT_FDS");
732
733	const nsModuleComponentInfo VirtualBoxInfo = {
734	"VirtualBox component",
735	NS_VIRTUALBOX_CID,
736	NS_VIRTUALBOX_CONTRACTID,
737	VirtualBoxConstructor, // constructor function
738	NULL, // registration function
739	NULL, // deregistration function
740	VirtualBoxClassFactory::FactoryDestructor, // factory destructor function
741	NS_CI_INTERFACE_GETTER_NAME(VirtualBoxWrap),
742	NULL, // language helper
743	&NS_CLASSINFO_NAME(VirtualBoxWrap),
744	0 // flags
745	};
746
747	const nsModuleComponentInfoPlusFactoryConstructor components[] = {
748	{
749	&VirtualBoxInfo,
750	VirtualBoxClassFactory::FactoryConstructor // factory constructor function
751	}
752	};
753
754	do
755	{
756	rc = com::Initialize();
757	if (NS_FAILED(rc))
758	{
759	RTMsgError("Failed to initialize XPCOM! (rc=%Rhrc)\n", rc);
760	break;
761	}
762
763	nsCOMPtr<nsIComponentRegistrar> registrar;
764	rc = NS_GetComponentRegistrar(getter_AddRefs(registrar));
765	if (NS_FAILED(rc))
766	{
767	RTMsgError("Failed to get component registrar! (rc=%Rhrc)", rc);
768	break;
769	}
770
771	registrar->AutoRegister(nsnull);
772	rc = RegisterSelfComponents(registrar, components,
773	NS_ARRAY_LENGTH(components));
774	if (NS_FAILED(rc))
775	{
776	RTMsgError("Failed to register server components! (rc=%Rhrc)", rc);
777	break;
778	}
779
780	nsCOMPtr<ipcIService> ipcServ(do_GetService(IPC_SERVICE_CONTRACTID, &rc));
781	if (NS_FAILED(rc))
782	{
783	RTMsgError("Failed to get IPC service! (rc=%Rhrc)", rc);
784	break;
785	}
786
787	NS_ADDREF(gIpcServ = ipcServ);
788
789	LogFlowFunc(("Will use \"%s\" as server name.\n", VBOXSVC_IPC_NAME));
790
791	rc = gIpcServ->AddName(VBOXSVC_IPC_NAME);
792	if (NS_FAILED(rc))
793	{
794	LogFlowFunc(("Failed to register the server name (rc=%Rhrc (%08X))!\n"
795	"Is another server already running?\n", rc, rc));
796
797	RTMsgError("Failed to register the server name \"%s\" (rc=%Rhrc)!\n"
798	"Is another server already running?\n",
799	VBOXSVC_IPC_NAME, rc);
800	NS_RELEASE(gIpcServ);
801	break;
802	}
803
804	{
805	/* setup signal handling to convert some signals to a quit event */
806	struct sigaction sa;
807	sa.sa_handler = signal_handler;
808	sigemptyset(&sa.sa_mask);
809	sa.sa_flags = 0;
810	sigaction(SIGINT, &sa, NULL);
811	sigaction(SIGQUIT, &sa, NULL);
812	sigaction(SIGTERM, &sa, NULL);
813	sigaction(SIGTRAP, &sa, NULL);
814	sigaction(SIGUSR1, &sa, NULL);
815	}
816
817	{
818	char szBuf[80];
819	int iSize;
820
821	iSize = RTStrPrintf(szBuf, sizeof(szBuf),
822	VBOX_PRODUCT" XPCOM Server Version "
823	VBOX_VERSION_STRING);
824	for (int i = iSize; i > 0; i--)
825	putchar('*');
826	RTPrintf("\n%s\n", szBuf);
827	RTPrintf("(C) 2004-" VBOX_C_YEAR " " VBOX_VENDOR "\n"
828	"All rights reserved.\n");
829	#ifdef DEBUG
830	RTPrintf("Debug version.\n");
831	#endif
832	}
833
834	if (daemon_pipe_wr != nsnull)
835	{
836	RTPrintf("\nStarting event loop....\n[send TERM signal to quit]\n");
837	/* now we're ready, signal the parent process */
838	PR_Write(daemon_pipe_wr, "READY", strlen("READY"));
839	/* close writing end of the pipe, its job is done */
840	PR_Close(daemon_pipe_wr);
841	}
842	else
843	RTPrintf("\nStarting event loop....\n[press Ctrl-C to quit]\n");
844
845	if (g_pszPidFile)
846	{
847	RTFILE hPidFile = NIL_RTFILE;
848	vrc = RTFileOpen(&hPidFile, g_pszPidFile, RTFILE_O_WRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE);
849	if (RT_SUCCESS(vrc))
850	{
851	char szBuf[32];
852	const char *lf = "\n";
853	RTStrFormatNumber(szBuf, getpid(), 10, 0, 0, 0);
854	RTFileWrite(hPidFile, szBuf, strlen(szBuf), NULL);
855	RTFileWrite(hPidFile, lf, strlen(lf), NULL);
856	RTFileClose(hPidFile);
857	}
858	}
859
860	// Increase the file table size to 10240 or as high as possible.
861	struct rlimit lim;
862	if (getrlimit(RLIMIT_NOFILE, &lim) == 0)
863	{
864	if ( lim.rlim_cur < 10240
865	&& lim.rlim_cur < lim.rlim_max)
866	{
867	lim.rlim_cur = RT_MIN(lim.rlim_max, 10240);
868	if (setrlimit(RLIMIT_NOFILE, &lim) == -1)
869	RTPrintf("WARNING: failed to increase file descriptor limit. (%d)\n", errno);
870	}
871	}
872	else
873	RTPrintf("WARNING: failed to obtain per-process file-descriptor limit (%d).\n", errno);
874
875	/* get the main thread's event queue */
876	gEventQ = com::NativeEventQueue::getMainEventQueue();
877	if (!gEventQ)
878	{
879	RTMsgError("Failed to get the main event queue! (rc=%Rhrc)", rc);
880	break;
881	}
882
883	while (gKeepRunning)
884	{
885	vrc = gEventQ->processEventQueue(RT_INDEFINITE_WAIT);
886	if (RT_FAILURE(vrc) && vrc != VERR_TIMEOUT)
887	{
888	LogRel(("Failed to wait for events! (rc=%Rrc)", vrc));
889	break;
890	}
891	}
892
893	gEventQ = NULL;
894	RTPrintf("Terminated event loop.\n");
895
896	/* unregister ourselves. After this point, clients will start a new
897	* process because they won't be able to resolve the server name.*/
898	gIpcServ->RemoveName(VBOXSVC_IPC_NAME);
899	}
900	while (0); // this scopes the nsCOMPtrs
901
902	NS_IF_RELEASE(gIpcServ);
903
904	/* no nsCOMPtrs are allowed to be alive when you call com::Shutdown(). */
905
906	LogFlowFunc(("Calling com::Shutdown()...\n"));
907	rc = com::Shutdown();
908	LogFlowFunc(("Finished com::Shutdown() (rc=%Rhrc)\n", rc));
909
910	if (NS_FAILED(rc))
911	RTMsgError("Failed to shutdown XPCOM! (rc=%Rhrc)", rc);
912
913	RTPrintf("XPCOM server has shutdown.\n");
914
915	if (g_pszPidFile)
916	RTFileDelete(g_pszPidFile);
917
918	return 0;
919	}

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source: vbox/trunk/src/VBox/Main/src-server/xpcom/server.cpp@ 59967

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