/**
* Xlib error handler for fatal errors. This often means that the programme is still running
* when X exits.
*/
static int vboxClientXLibIOErrorHandler(Display *pDisplay)
{
LogRel(("VBoxClient: a fatal guest X Window error occurred. This may just mean that the Window system was shut down while the client was still running.\n"));
VBClCleanUp();
return 0; /* We should never reach this. */
}
/**
* The main loop for the VBoxClient daemon.
* @todo Clean up for readability.
*/
int main(int argc, char *argv[])
{
bool fDaemonise = true, fRespawn = true;
int rc;
const char *pcszFileName;
/* Initialise our runtime before all else. */
rc = RTR3InitExe(argc, &argv, 0);
if (RT_FAILURE(rc))
return RTMsgInitFailure(rc);
/* This should never be called twice in one process - in fact one Display
* object should probably never be used from multiple threads anyway. */
if (!XInitThreads())
VBClFatalError(("Failed to initialize X11 threads\n"));
/* Get our file name for error output. */
pcszFileName = RTPathFilename(argv[0]);
if (!pcszFileName)
pcszFileName = "VBoxClient";
/* Parse our option(s) */
/** @todo Use RTGetOpt() if the arguments become more complex. */
for (int i = 1; i < argc; ++i)
{
rc = VERR_INVALID_PARAMETER;
if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--nodaemon"))
{
/* If the user is running in "no daemon" mode anyway, send critical
* logging to stdout as well. */
PRTLOGGER pReleaseLog = RTLogRelGetDefaultInstance();
if (pReleaseLog)
rc = RTLogDestinations(pReleaseLog, "stdout");
if (pReleaseLog && RT_FAILURE(rc))
RTPrintf("%s: failed to redivert error output, rc=%Rrc\n",
pcszFileName, rc);
fDaemonise = false;
}
else if (!strcmp(argv[i], "--no-respawn"))
{
fRespawn = false;
}
else if (!strcmp(argv[i], "--clipboard"))
{
if (g_pService)
break;
g_pService = VBClGetClipboardService();
}
else if (!strcmp(argv[i], "--display"))
{
if (g_pService)
break;
g_pService = VBClGetDisplayService();
}
else if (!strcmp(argv[i], "--seamless"))
{
if (g_pService)
break;
g_pService = VBClGetSeamlessService();
}
else if (!strcmp(argv[i], "--checkhostversion"))
{
if (g_pService)
break;
g_pService = VBClGetHostVersionService();
}
#ifdef VBOX_WITH_DRAG_AND_DROP
else if (!strcmp(argv[i], "--draganddrop"))
{
if (g_pService)
break;
g_pService = VBClGetDragAndDropService();
}
#endif /* VBOX_WITH_DRAG_AND_DROP */
else if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help"))
{
vboxClientUsage(pcszFileName);
return 0;
}
else if (!strcmp(argv[i], "-V") || !strcmp(argv[i], "--version"))
{
RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
return 0;
}
else
{
RTPrintf("%s: unrecognized option `%s'\n", pcszFileName, argv[i]);
RTPrintf("Try `%s --help' for more information\n", pcszFileName);
return 1;
}
rc = VINF_SUCCESS;
}
if (RT_FAILURE(rc) || !g_pService)
{
vboxClientUsage(pcszFileName);
return 1;
}
rc = RTCritSectInit(&g_critSect);
if (RT_FAILURE(rc))
VBClFatalError(("Initialising critical section: %Rrc\n", rc));
rc = RTPathUserHome(g_szPidFile, sizeof(g_szPidFile));
if (RT_FAILURE(rc))
VBClFatalError(("Getting home directory for pid-file: %Rrc\n", rc));
rc = RTPathAppend(g_szPidFile, sizeof(g_szPidFile),
(*g_pService)->getPidFilePath());
if (RT_FAILURE(rc))
VBClFatalError(("Creating pid-file path: %Rrc\n", rc));
if (fDaemonise)
rc = VbglR3Daemonize(false /* fNoChDir */, false /* fNoClose */, fRespawn, &cRespawn);
if (RT_FAILURE(rc))
VBClFatalError(("Daemonizing: %Rrc\n", rc));
if (g_szPidFile[0])
rc = VbglR3PidFile(g_szPidFile, &g_hPidFile);
if (rc == VERR_FILE_LOCK_VIOLATION) /* Already running. */
return 0;
if (RT_FAILURE(rc))
VBClFatalError(("Creating pid-file: %Rrc\n", rc));
/* Set signal handlers to clean up on exit. */
vboxClientSetSignalHandlers();
#ifndef VBOXCLIENT_WITHOUT_X11
/* Set an X11 error handler, so that we don't die when we get unavoidable
* errors. */
XSetErrorHandler(vboxClientXLibErrorHandler);
/* Set an X11 I/O error handler, so that we can shutdown properly on
* fatal errors. */
XSetIOErrorHandler(vboxClientXLibIOErrorHandler);
#endif
rc = (*g_pService)->init(g_pService);
if (RT_FAILURE(rc))
VBClFatalError(("Initialising service: %Rrc\n", rc));
rc = (*g_pService)->run(g_pService, fDaemonise);
if (RT_FAILURE(rc))
VBClFatalError(("Service main loop failed: %Rrc\n", rc));
VBClCleanUp();
return 0;
}
