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/* $Id: STAMInternal.h $ */
/** @file
* STAM Internal Header.
*/
/*
* Copyright (C) 2006-2023 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
*/
#ifndef VMM_INCLUDED_SRC_include_STAMInternal_h
#define VMM_INCLUDED_SRC_include_STAMInternal_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/cdefs.h>
#include <VBox/types.h>
#include <VBox/vmm/stam.h>
#include <VBox/vmm/gvmm.h>
#include <VBox/vmm/gmm.h>
#include <iprt/list.h>
#include <iprt/semaphore.h>
RT_C_DECLS_BEGIN
/** @defgroup grp_stam_int Internals
* @ingroup grp_stam
* @internal
* @{
*/
/** Pointer to sample descriptor. */
typedef struct STAMDESC *PSTAMDESC;
/** Pointer to a sample lookup node. */
typedef struct STAMLOOKUP *PSTAMLOOKUP;
/**
* Sample lookup node.
*/
typedef struct STAMLOOKUP
{
/** The parent lookup record. This is NULL for the root node. */
PSTAMLOOKUP pParent;
/** Array of children (using array for binary searching). */
PSTAMLOOKUP *papChildren;
/** Pointer to the description node, if any. */
PSTAMDESC pDesc;
/** Number of decentants with descriptors. (Use for freeing up sub-trees.) */
uint32_t cDescsInTree;
/** The number of children. */
uint16_t cChildren;
/** The index in the parent paChildren array. UINT16_MAX for the root node. */
uint16_t iParent;
/** The path offset. */
uint16_t off;
/** The size of the path component. */
uint16_t cch;
/** The name (variable size). */
char szName[1];
} STAMLOOKUP;
/**
* Sample descriptor.
*/
typedef struct STAMDESC
{
/** Our entry in the big linear list. */
RTLISTNODE ListEntry;
/** Pointer to our lookup node. */
PSTAMLOOKUP pLookup;
/** Sample name. */
const char *pszName;
/** Sample type. */
STAMTYPE enmType;
/** Visibility type. */
STAMVISIBILITY enmVisibility;
/** Pointer to the sample data. */
union STAMDESCSAMPLEDATA
{
/** Counter. */
PSTAMCOUNTER pCounter;
/** Profile. */
PSTAMPROFILE pProfile;
/** Advanced profile. */
PSTAMPROFILEADV pProfileAdv;
/** Ratio, unsigned 32-bit. */
PSTAMRATIOU32 pRatioU32;
/** unsigned 8-bit. */
uint8_t *pu8;
/** unsigned 16-bit. */
uint16_t *pu16;
/** unsigned 32-bit. */
uint32_t *pu32;
/** unsigned 64-bit. */
uint64_t *pu64;
/** Simple void pointer. */
void *pv;
/** Boolean. */
bool *pf;
/** */
struct STAMDESCSAMPLEDATACALLBACKS
{
/** The same pointer. */
void *pvSample;
/** Pointer to the reset callback. */
PFNSTAMR3CALLBACKRESET pfnReset;
/** Pointer to the print callback. */
PFNSTAMR3CALLBACKPRINT pfnPrint;
} Callback;
} u;
/** Unit. */
STAMUNIT enmUnit;
/** The refresh group number (STAM_REFRESH_GRP_XXX). */
uint8_t iRefreshGroup;
/** Description. */
const char *pszDesc;
} STAMDESC;
/**
* STAM data kept in the UVM.
*/
typedef struct STAMUSERPERVM
{
/** List of samples. */
RTLISTANCHOR List;
/** Root of the lookup tree. */
PSTAMLOOKUP pRoot;
/** RW Lock for the list and tree. */
RTSEMRW RWSem;
/** The copy of the GVMM statistics. */
GVMMSTATS GVMMStats;
/** The number of registered host CPU leaves. */
uint32_t cRegisteredHostCpus;
/** Explicit alignment padding. */
uint32_t uAlignment;
/** The copy of the GMM statistics. */
GMMSTATS GMMStats;
} STAMUSERPERVM;
#ifdef IN_RING3
AssertCompileMemberAlignment(STAMUSERPERVM, GMMStats, 8);
#endif
/** Pointer to the STAM data kept in the UVM. */
typedef STAMUSERPERVM *PSTAMUSERPERVM;
/** Locks the sample descriptors for reading. */
#define STAM_LOCK_RD(pUVM) do { int rcSem = RTSemRWRequestRead(pUVM->stam.s.RWSem, RT_INDEFINITE_WAIT); AssertRC(rcSem); } while (0)
/** Locks the sample descriptors for writing. */
#define STAM_LOCK_WR(pUVM) do { int rcSem = RTSemRWRequestWrite(pUVM->stam.s.RWSem, RT_INDEFINITE_WAIT); AssertRC(rcSem); } while (0)
/** UnLocks the sample descriptors after reading. */
#define STAM_UNLOCK_RD(pUVM) do { int rcSem = RTSemRWReleaseRead(pUVM->stam.s.RWSem); AssertRC(rcSem); } while (0)
/** UnLocks the sample descriptors after writing. */
#define STAM_UNLOCK_WR(pUVM) do { int rcSem = RTSemRWReleaseWrite(pUVM->stam.s.RWSem); AssertRC(rcSem); } while (0)
/** Lazy initialization */
#define STAM_LAZY_INIT(pUVM) do { } while (0)
/** @} */
RT_C_DECLS_END
#endif /* !VMM_INCLUDED_SRC_include_STAMInternal_h */
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