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/* $Id: */
/** @file
* VBoxWatchdogUtils - Misc. utility functions for modules.
*/
/*
* Copyright (C) 2011-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program 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 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <VBox/com/array.h>
#include "VBoxWatchdogInternal.h"
#include <iprt/sanitized/sstream>
#include <algorithm>
/**
* Adds a group / a set of groups to the specified map.
* If a group in the group map exists there will be no action.
*
* @return IPRT status code.
* @param groups Map to add group(s) to.
* @param pszGroupsToAdd Comma-separated string of one or more groups to add.
* @param fFlags Flags to set to the groups added.
*/
int groupAdd(mapGroups &groups, const char *pszGroupsToAdd, uint32_t fFlags)
{
AssertPtrReturn(pszGroupsToAdd, VERR_INVALID_POINTER);
try
{
std::istringstream strGroups(pszGroupsToAdd);
for(std::string strToken; getline(strGroups, strToken, ','); )
{
strToken.erase(remove_if(strToken.begin(), strToken.end(), isspace), strToken.end());
Utf8Str strTokenUtf8(strToken.c_str());
mapGroupsIterConst it = groups.find(strTokenUtf8);
if (it == groups.end())
groups.insert(std::make_pair(strTokenUtf8, fFlags));
}
}
catch (...)
{
AssertFailed();
}
return VINF_SUCCESS;
}
/**
* Retrieves a metric from a specified machine.
*
* @return IPRT status code.
* @param pMachine Pointer to the machine's internal structure.
* @param strName Name of metric to retrieve.
* @param pulData Pointer to value to retrieve the actual metric value.
*/
int getMetric(PVBOXWATCHDOG_MACHINE pMachine, const Bstr& strName, LONG *pulData)
{
AssertPtrReturn(pMachine, VERR_INVALID_POINTER);
AssertPtrReturn(pulData, VERR_INVALID_POINTER);
/* Input. */
com::SafeArray<BSTR> metricNames(1);
com::SafeIfaceArray<IUnknown> metricObjects(1);
pMachine->machine.queryInterfaceTo(&metricObjects[0]);
/* Output. */
com::SafeArray<BSTR> retNames;
com::SafeIfaceArray<IUnknown> retObjects;
com::SafeArray<BSTR> retUnits;
com::SafeArray<ULONG> retScales;
com::SafeArray<ULONG> retSequenceNumbers;
com::SafeArray<ULONG> retIndices;
com::SafeArray<ULONG> retLengths;
com::SafeArray<LONG> retData;
/* Query current memory free. */
strName.cloneTo(&metricNames[0]);
#ifdef VBOX_WATCHDOG_GLOBAL_PERFCOL
Assert(!g_pPerfCollector.isNull());
HRESULT hrc = g_pPerfCollector->QueryMetricsData(
#else
Assert(!pMachine->collector.isNull());
HRESULT hrc = pMachine->collector->QueryMetricsData(
#endif
ComSafeArrayAsInParam(metricNames),
ComSafeArrayAsInParam(metricObjects),
ComSafeArrayAsOutParam(retNames),
ComSafeArrayAsOutParam(retObjects),
ComSafeArrayAsOutParam(retUnits),
ComSafeArrayAsOutParam(retScales),
ComSafeArrayAsOutParam(retSequenceNumbers),
ComSafeArrayAsOutParam(retIndices),
ComSafeArrayAsOutParam(retLengths),
ComSafeArrayAsOutParam(retData));
#if 0
/* Useful for metrics debugging. */
for (unsigned j = 0; j < retNames.size(); j++)
{
Bstr metricUnit(retUnits[j]);
Bstr metricName(retNames[j]);
RTPrintf("%-20ls ", metricName.raw());
const char *separator = "";
for (unsigned k = 0; k < retLengths[j]; k++)
{
if (retScales[j] == 1)
RTPrintf("%s%d %ls", separator, retData[retIndices[j] + k], metricUnit.raw());
else
RTPrintf("%s%d.%02d%ls", separator, retData[retIndices[j] + k] / retScales[j],
(retData[retIndices[j] + k] * 100 / retScales[j]) % 100, metricUnit.raw());
separator = ", ";
}
RTPrintf("\n");
}
#endif
if (SUCCEEDED(hrc))
*pulData = retData.size() ? retData[retIndices[0]] : 0;
return SUCCEEDED(hrc) ? VINF_SUCCESS : VINF_NOT_SUPPORTED;
}
/**
* Returns the payload of a machine.
*
* @return void* Pointer to payload data. Mutable!
* @param pMachine Machine to get payload for.
* @param pszModule Module name to get payload from.
*/
void* payloadFrom(PVBOXWATCHDOG_MACHINE pMachine, const char *pszModule)
{
AssertPtrReturn(pMachine, NULL);
AssertPtrReturn(pszModule, NULL);
mapPayloadIter it = pMachine->payload.find(pszModule);
if (it == pMachine->payload.end())
return NULL;
Assert(it->second.cbData);
return it->second.pvData;
}
int payloadAlloc(PVBOXWATCHDOG_MACHINE pMachine, const char *pszModule,
size_t cbSize, void **ppszPayload)
{
AssertPtrReturn(pMachine, VERR_INVALID_POINTER);
AssertPtrReturn(pszModule, VERR_INVALID_POINTER);
AssertReturn(cbSize, VERR_INVALID_PARAMETER);
void *pvData = RTMemAllocZ(cbSize);
AssertPtrReturn(pvData, VERR_NO_MEMORY);
mapPayloadIter it = pMachine->payload.find(pszModule);
AssertReturn(it == pMachine->payload.end(), VERR_INVALID_PARAMETER);
VBOXWATCHDOG_MODULE_PAYLOAD p;
p.pvData = pvData;
p.cbData = cbSize;
if (ppszPayload)
*ppszPayload = p.pvData;
pMachine->payload.insert(std::make_pair(pszModule, p));
return VINF_SUCCESS;
}
void payloadFree(PVBOXWATCHDOG_MACHINE pMachine, const char *pszModule)
{
AssertPtrReturnVoid(pMachine);
AssertPtrReturnVoid(pszModule);
mapPayloadIter it = pMachine->payload.find(pszModule);
if (it != pMachine->payload.end())
{
RTMemFree(it->second.pvData);
pMachine->payload.erase(it);
}
}
PVBOXWATCHDOG_MACHINE getMachine(const Bstr& strUuid)
{
mapVMIter it = g_mapVM.find(strUuid);
if (it != g_mapVM.end())
return &it->second;
return NULL;
}
MachineState_T getMachineState(const PVBOXWATCHDOG_MACHINE pMachine)
{
AssertPtrReturn(pMachine, MachineState_Null);
MachineState_T machineState;
Assert(!pMachine->machine.isNull());
HRESULT rc = pMachine->machine->COMGETTER(State)(&machineState);
if (SUCCEEDED(rc))
return machineState;
return MachineState_Null;
}
int cfgGetValueStr(const ComPtr<IVirtualBox> &rptrVBox, const ComPtr<IMachine> &rptrMachine,
const char *pszGlobal, const char *pszVM, Utf8Str &strValue, Utf8Str strDefault)
{
AssertReturn(!rptrVBox.isNull(), VERR_INVALID_POINTER);
/* Try per-VM approach. */
Bstr strTemp;
HRESULT hr;
if (!rptrMachine.isNull())
{
AssertPtr(pszVM);
hr = rptrMachine->GetExtraData(Bstr(pszVM).raw(),
strTemp.asOutParam());
if ( SUCCEEDED(hr)
&& !strTemp.isEmpty())
{
strValue = Utf8Str(strTemp);
}
}
if (strValue.isEmpty()) /* Not set by per-VM value? */
{
AssertPtr(pszGlobal);
/* Try global approach. */
hr = rptrVBox->GetExtraData(Bstr(pszGlobal).raw(),
strTemp.asOutParam());
if ( SUCCEEDED(hr)
&& !strTemp.isEmpty())
{
strValue = Utf8Str(strTemp);
}
}
if (strValue.isEmpty())
{
strValue = strDefault;
return VERR_NOT_FOUND;
}
return VINF_SUCCESS;
}
int cfgGetValueU32(const ComPtr<IVirtualBox> &rptrVBox, const ComPtr<IMachine> &rptrMachine,
const char *pszGlobal, const char *pszVM, uint32_t *puValue, uint32_t uDefault)
{
Utf8Str strValue;
int rc = cfgGetValueStr(rptrVBox, rptrMachine, pszGlobal, pszVM, strValue, "" /* Default */);
if (RT_SUCCESS(rc))
*puValue = strValue.toUInt32();
else
*puValue = uDefault;
return rc;
}
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