tstVBoxAPILinux.cpp revision 677833bc953b6cb418c701facbdcf4aa18d6c44e
/** @file
*
* tstVBoxAPILinux - sample program to illustrate the VirtualBox
* XPCOM API for machine management on Linux.
* It only uses standard C/C++ and XPCOM semantics,
* no additional VBox classes/macros/helpers.
*
*/
/*
* Copyright (C) 2006 InnoTek Systemberatung GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License as published by the Free Software Foundation,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*
* If you received this file as part of a commercial VirtualBox
* distribution, then only the terms of your commercial VirtualBox
* license agreement apply instead of the previous paragraph.
*/
#include <stdio.h>
#include <stdlib.h>
#include <iconv.h>
#include <errno.h>
/*
* Include the XPCOM headers
*/
#include <nsIServiceManager.h>
#include <nsIComponentRegistrar.h>
#include <nsXPCOMGlue.h>
#include <nsMemory.h>
#include <nsString.h>
#include <nsIProgrammingLanguage.h>
#include <ipcIService.h>
#include <ipcCID.h>
#include <ipcIDConnectService.h>
#include <nsIEventQueueService.h>
/*
* Some XPCOM declarations that haven't made it
* into the official headers yet
*/
#define IPC_DCONNECTSERVICE_CONTRACTID \
"@mozilla.org/ipc/dconnect-service;1"
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static nsIEventQueue* gEventQ = nsnull;
/*
* VirtualBox XPCOM interface. This header is generated
* from IDL which in turn is generated from a custom XML format.
*/
#include "VirtualBox_XPCOM.h"
/*
* Prototypes
*/
char *nsIDToString(nsID *guid);
/**
* Display all registered VMs on the screen with some information about each
*
* @param virtualBox VirtualBox instance object.
*/
void listVMs(IVirtualBox *virtualBox)
{
nsresult rc;
printf("----------------------------------------------------\n");
printf("VM List:\n\n");
/*
* Get the list of all registered VMs
*/
IMachineCollection *collection = nsnull;
IMachineEnumerator *enumerator = nsnull;
rc = virtualBox->GetMachines(&collection);
if (NS_SUCCEEDED(rc))
rc = collection->Enumerate(&enumerator);
if (NS_SUCCEEDED(rc))
{
/*
* Iterate through the collection
*/
PRBool hasMore = false;
while (enumerator->HasMore(&hasMore), hasMore)
{
IMachine *machine = nsnull;
rc = enumerator->GetNext(&machine);
if ((NS_SUCCEEDED(rc)) && machine)
{
nsXPIDLString machineName;
machine->GetName(getter_Copies(machineName));
char *machineNameAscii = ToNewCString(machineName);
printf("\tName: %s\n", machineNameAscii);
free(machineNameAscii);
nsID *iid = nsnull;
machine->GetId(&iid);
const char *uuidString = nsIDToString(iid);
printf("\tUUID: %s\n", uuidString);
free((void*)uuidString);
nsMemory::Free(iid);
nsXPIDLString configFile;
machine->GetSettingsFilePath(getter_Copies(configFile));
char *configFileAscii = ToNewCString(configFile);
printf("\tConfig file: %s\n", configFileAscii);
free(configFileAscii);
PRUint32 memorySize;
machine->GetMemorySize(&memorySize);
printf("\tMemory size: %uMB\n", memorySize);
IGuestOSType *osType = nsnull;
machine->GetOSType(&osType);
nsXPIDLString osName;
osType->GetDescription(getter_Copies(osName));
char *osNameAscii = ToNewCString(osName);
printf("\tGuest OS: %s\n\n", osNameAscii);
free(osNameAscii);
osType->Release();
machine->Release();
}
}
}
printf("----------------------------------------------------\n\n");
/* don't forget to release the objects... */
if (enumerator)
enumerator->Release();
if (collection)
collection->Release();
}
/**
* Create a sample VM
*
* @param virtualBox VirtualBox instance object.
*/
void createVM(IVirtualBox *virtualBox)
{
nsresult rc;
/*
* First create a new VM. It will be unconfigured and not be saved
* in the configuration until we explicitely choose to do so.
*/
IMachine *machine;
rc = virtualBox->CreateMachine(nsnull, NS_LITERAL_STRING("A brand new VM").get(), &machine);
/*
* Set some properties
*/
/* alternative to illustrate the use of string classes */
char vmName[] = "A new name";
rc = machine->SetName(NS_ConvertUTF8toUTF16((char*)vmName).get());
rc = machine->SetMemorySize(128);
/*
* Now a more advanced property -- the guest OS type. This is
* an object by itself which has to be found first. Note that we
* use the ID of the guest OS type here which is an internal
* representation (you can find that by configuring the OS type of
* a machine in the GUI and then looking at the <Guest ostype=""/>
* setting in the XML file. It is also possible to get the OS type from
* its description (win2k would be "Windows 2000") by getting the
* guest OS type collection and enumerating it.
*/
IGuestOSType *osType = nsnull;
char win2k[] = "win2k";
rc = virtualBox->FindGuestOSType(NS_ConvertUTF8toUTF16((char*)win2k).get(), &osType);
if (NS_FAILED(rc) || !osType)
{
printf("Error: could not find guest OS type! rc = 0x%x\n", rc);
}
else
{
machine->SetOSType(osType);
osType->Release();
}
/*
* Create a virtual harddisk
*/
IHardDisk *hardDisk = 0;
IVirtualDiskImage *vdi = 0;
char vdiName[] = "TestHardDisk.vdi";
rc = virtualBox->CreateHardDisk(HardDiskStorageType::VirtualDiskImage,
&hardDisk);
if (NS_SUCCEEDED (rc))
{
rc = hardDisk->QueryInterface(NS_GET_IID(IVirtualDiskImage), (void **)&vdi);
if (NS_SUCCEEDED (rc))
rc = vdi->SetFilePath(NS_ConvertUTF8toUTF16((char*)vdiName).get());
}
if (NS_FAILED(rc) || !hardDisk || !vdi)
{
printf("Failed creating a hard disk object!\n");
}
else
{
/*
* We have only created an object so far. No on disk representation exists
* because none of its properties has been set so far. Let's continue creating
* a dynamically expanding image.
*/
IProgress *progress;
rc = vdi->CreateDynamicImage(100, // size in megabytes
&progress); // optional progress object
if (NS_FAILED(rc) || !progress)
{
printf("Failed creating hard disk image!\n");
}
else
{
/*
* Creating the image is done in the background because it can take quite
* some time (at least fixed size images). We have to wait for its completion.
* Here we wait forever (timeout -1) which is potentially dangerous.
*/
rc = progress->WaitForCompletion(-1);
nsresult resultCode;
progress->GetResultCode(&resultCode);
progress->Release();
if (NS_FAILED(rc) || (resultCode != 0))
{
printf("Error: could not create hard disk!\n");
}
else
{
/*
* Now we have to register the new hard disk with VirtualBox.
*/
rc = virtualBox->RegisterHardDisk(hardDisk);
if (NS_FAILED(rc))
{
printf("Error: could not register hard disk!\n");
}
else
{
/*
* Now that it's registered, we can assign it to the VM. This is done
* by UUID, so query that one fist. The UUID has been assigned automatically
* when we've created the image.
*/
nsID *vdiUUID = nsnull;
hardDisk->GetId(&vdiUUID);
rc = machine->AttachHardDisk(*vdiUUID,
DiskControllerType::IDE0Controller, // controler identifier
0); // device number on the controller
nsMemory::Free(vdiUUID);
if (NS_FAILED(rc))
{
printf("Error: could not attach hard disk!\n");
}
}
}
}
}
if (vdi)
vdi->Release();
if (hardDisk)
hardDisk->Release();
/*
* It's got a hard disk but that one is new and thus not bootable. Make it
* boot from an ISO file. This requires some processing. First the ISO file
* has to be registered and then mounted to the VM's DVD drive and selected
* as the boot device.
*/
nsID uuid = {0};
IDVDImage *dvdImage = nsnull;
char isoFile[] = "/home/achimha/isoimages/winnt4ger.iso";
rc = virtualBox->OpenDVDImage(NS_ConvertUTF8toUTF16((char*)isoFile).get(),
uuid, /* NULL UUID, i.e. a new one will be created */
&dvdImage);
if (NS_FAILED(rc) || !dvdImage)
{
printf("Error: could not open CD image!\n");
}
else
{
/*
* Register it with VBox
*/
rc = virtualBox->RegisterDVDImage(dvdImage);
if (NS_FAILED(rc) || !dvdImage)
{
printf("Error: could not register CD image!\n");
}
else
{
/*
* Now assign it to our VM
*/
nsID *isoUUID = nsnull;
dvdImage->GetId(&isoUUID);
IDVDDrive *dvdDrive = nsnull;
machine->GetDVDDrive(&dvdDrive);
rc = dvdDrive->MountImage(*isoUUID);
nsMemory::Free(isoUUID);
if (NS_FAILED(rc))
{
printf("Error: could not mount ISO image!\n");
}
else
{
/*
* Last step: tell the VM to boot from the CD.
*/
rc = machine->SetBootOrder (1, DeviceType::DVDDevice);
if (NS_FAILED(rc))
{
printf("Could not set boot device!\n");
}
}
dvdDrive->Release();
dvdImage->Release();
}
}
/*
* Register the VM. Note that this call also saves the VM config
* to disk. It is also possible to save the VM settings but not
* register the VM.
*/
virtualBox->RegisterMachine(machine);
machine->Release();
}
// main
///////////////////////////////////////////////////////////////////////////////
int main(int argc, char *argv[])
{
nsresult rc;
/*
* This is the standard XPCOM init processing.
* What we do is just follow the required steps to get an instance
* of our main interface, which is IVirtualBox
*/
XPCOMGlueStartup(nsnull);
nsCOMPtr<nsIServiceManager> serviceManager;
rc = NS_InitXPCOM2(getter_AddRefs(serviceManager), nsnull, nsnull);
if (NS_FAILED(rc))
{
printf("Error: XPCOM could not be initialized! rc=0x%x\n", rc);
return -1;
}
// register our component
nsCOMPtr<nsIComponentRegistrar> registrar = do_QueryInterface(serviceManager);
if (!registrar)
{
printf("Error: could not query nsIComponentRegistrar interface!\n");
return -1;
}
registrar->AutoRegister(nsnull);
// Create the Event Queue for this thread
nsCOMPtr<nsIEventQueueService> eqs = do_GetService(kEventQueueServiceCID, &rc);
if (NS_FAILED( rc ))
{
printf("Error: could not get event queue service! rc=%08X\n", rc);
return -1;
}
rc = eqs->CreateThreadEventQueue();
if (NS_FAILED( rc ))
{
printf("Error: could not create thread event queue! rc=%08X\n", rc);
return -1;
}
rc = eqs->GetThreadEventQueue(NS_CURRENT_THREAD, &gEventQ);
if (NS_FAILED( rc ))
{
printf("Error: could not get tread event queue! rc=%08X\n", rc);
return -1;
}
// get ipc service
nsCOMPtr<ipcIService> ipcServ = do_GetService(IPC_SERVICE_CONTRACTID, &rc);
if (NS_FAILED( rc ))
{
printf("Error: could not get ipc service! rc=%08X\n", rc);
return -1;
}
// get dconnect service
nsCOMPtr<ipcIDConnectService> dcon = do_GetService(IPC_DCONNECTSERVICE_CONTRACTID, &rc);
if (NS_FAILED( rc ))
{
printf("Error: could not get dconnect service! rc=%08X\n", rc);
return -1;
}
PRUint32 serverID = 0;
rc = ipcServ->ResolveClientName("VirtualBoxServer", &serverID);
if (NS_FAILED( rc ))
{
printf("Error: could not get VirtualBox server ID! rc=%08X\n", rc);
return -1;
}
nsCOMPtr<nsIComponentManager> manager = do_QueryInterface(registrar);
if (!manager)
{
printf("Error: could not query nsIComponentManager interface!\n");
return -1;
}
/*
* Now XPCOM is ready and we can start to do real work.
* IVirtualBox is the root interface of VirtualBox and will be
* retrieved from the XPCOM component registrar. We use the
* XPCOM provided smart pointer nsCOMPtr for all objects because
* that's very convenient and removes the need deal with reference
* counting and freeing.
*/
nsCOMPtr<IVirtualBox> virtualBox;
rc = dcon->CreateInstanceByContractID(serverID, NS_VIRTUALBOX_CONTRACTID,
NS_GET_IID(IVirtualBox),
getter_AddRefs(virtualBox));
if (NS_FAILED(rc))
{
printf("Error, could not instantiate VirtualBox object! rc=0x%x\n", rc);
return -1;
}
printf("VirtualBox object created\n");
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
listVMs(virtualBox);
createVM(virtualBox);
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/* this is enough to free the IVirtualBox instance -- smart pointers rule! */
virtualBox = nsnull;
/*
* Process events that might have queued up in the XPCOM event
* queue. If we don't process them, the server might hang.
*/
gEventQ->ProcessPendingEvents();
/*
* Perform the standard XPCOM shutdown procedure
*/
NS_ShutdownXPCOM(nsnull);
XPCOMGlueShutdown();
printf("Done!\n");
return 0;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
//// Helpers
//////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Helper function to convert an nsID into a human readable string
*
* @returns result string, allocated. Has to be freed using free()
* @param guid Pointer to nsID that will be converted.
*/
char *nsIDToString(nsID *guid)
{
char *res = (char*)malloc(39);
if (res != NULL)
{
snprintf(res, 39, "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
guid->m0, (PRUint32)guid->m1, (PRUint32)guid->m2,
(PRUint32)guid->m3[0], (PRUint32)guid->m3[1], (PRUint32)guid->m3[2],
(PRUint32)guid->m3[3], (PRUint32)guid->m3[4], (PRUint32)guid->m3[5],
(PRUint32)guid->m3[6], (PRUint32)guid->m3[7]);
}
return res;
}