VirtualBox

source: vbox/trunk/src/VBox/VMM/STAM.cpp@ 26616

Last change on this file since 26616 was 25647, checked in by vboxsync, 15 years ago

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1/* $Id: STAM.cpp 25647 2010-01-05 09:59:19Z vboxsync $ */
2/** @file
3 * STAM - The Statistics Manager.
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 */
21
22/** @page pg_stam STAM - The Statistics Manager
23 *
24 * The purpose for the statistics manager is to present the rest of the system
25 * with a somewhat uniform way of accessing VMM statistics. STAM sports a
26 * couple of different APIs for accessing them: STAMR3EnumU, STAMR3SnapshotU,
27 * STAMR3DumpU, STAMR3DumpToReleaseLogU and the debugger. Main is exposing the
28 * XML based one, STAMR3SnapshotU.
29 *
30 * The rest of the VMM together with the devices and drivers registers their
31 * statistics with STAM giving them a name. The name is hierarchical, the
32 * components separated by slashes ('/') and must start with a slash.
33 *
34 * Each item registered with STAM - also, half incorrectly, called a sample -
35 * has a type, unit, visibility, data pointer and description associated with it
36 * in addition to the name (described above). The type tells STAM what kind of
37 * structure the pointer is pointing to. The visibility allows unused
38 * statistics from cluttering the output or showing up in the GUI. All the bits
39 * together makes STAM able to present the items in a sensible way to the user.
40 * Some types also allows STAM to reset the data, which is very convenient when
41 * digging into specific operations and such.
42 *
43 * PS. The VirtualBox Debugger GUI has a viewer for inspecting the statistics
44 * STAM provides. You will also find statistics in the release and debug logs.
45 * And as mentioned in the introduction, the debugger console features a couple
46 * of command: .stats and .statsreset.
47 *
48 * @see grp_stam
49 */
50
51/*******************************************************************************
52* Header Files *
53*******************************************************************************/
54#define LOG_GROUP LOG_GROUP_STAM
55#include <VBox/stam.h>
56#include "STAMInternal.h"
57#include <VBox/vm.h>
58#include <VBox/uvm.h>
59#include <VBox/err.h>
60#include <VBox/dbg.h>
61#include <VBox/log.h>
62
63#include <iprt/assert.h>
64#include <iprt/asm.h>
65#include <iprt/alloc.h>
66#include <iprt/stream.h>
67#include <iprt/string.h>
68
69
70/*******************************************************************************
71* Structures and Typedefs *
72*******************************************************************************/
73/**
74 * Argument structure for stamR3PrintOne().
75 */
76typedef struct STAMR3PRINTONEARGS
77{
78 PVM pVM;
79 void *pvArg;
80 DECLCALLBACKMEMBER(void, pfnPrintf)(struct STAMR3PRINTONEARGS *pvArg, const char *pszFormat, ...);
81} STAMR3PRINTONEARGS, *PSTAMR3PRINTONEARGS;
82
83
84/**
85 * Argument structure to stamR3EnumOne().
86 */
87typedef struct STAMR3ENUMONEARGS
88{
89 PVM pVM;
90 PFNSTAMR3ENUM pfnEnum;
91 void *pvUser;
92} STAMR3ENUMONEARGS, *PSTAMR3ENUMONEARGS;
93
94
95/**
96 * The snapshot status structure.
97 * Argument package passed to stamR3SnapshotOne, stamR3SnapshotPrintf and stamR3SnapshotOutput.
98 */
99typedef struct STAMR3SNAPSHOTONE
100{
101 /** Pointer to the buffer start. */
102 char *pszStart;
103 /** Pointer to the buffer end. */
104 char *pszEnd;
105 /** Pointer to the current buffer position. */
106 char *psz;
107 /** The VM handle. */
108 PVM pVM;
109 /** The number of bytes allocated. */
110 size_t cbAllocated;
111 /** The status code. */
112 int rc;
113 /** Whether to include the description strings. */
114 bool fWithDesc;
115} STAMR3SNAPSHOTONE, *PSTAMR3SNAPSHOTONE;
116
117
118/**
119 * Init record for a ring-0 statistic sample.
120 */
121typedef struct STAMR0SAMPLE
122{
123 /** The GVMMSTATS structure offset of the variable. */
124 unsigned offVar;
125 /** The type. */
126 STAMTYPE enmType;
127 /** The unit. */
128 STAMUNIT enmUnit;
129 /** The name. */
130 const char *pszName;
131 /** The description. */
132 const char *pszDesc;
133} STAMR0SAMPLE;
134
135
136/*******************************************************************************
137* Internal Functions *
138*******************************************************************************/
139static int stamR3RegisterU(PUVM pUVM, void *pvSample, PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
140 STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char *pszName, STAMUNIT enmUnit, const char *pszDesc);
141static int stamR3ResetOne(PSTAMDESC pDesc, void *pvArg);
142static DECLCALLBACK(void) stamR3EnumLogPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
143static DECLCALLBACK(void) stamR3EnumRelLogPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
144static DECLCALLBACK(void) stamR3EnumPrintf(PSTAMR3PRINTONEARGS pvArg, const char *pszFormat, ...);
145static int stamR3SnapshotOne(PSTAMDESC pDesc, void *pvArg);
146static int stamR3SnapshotPrintf(PSTAMR3SNAPSHOTONE pThis, const char *pszFormat, ...);
147static int stamR3PrintOne(PSTAMDESC pDesc, void *pvArg);
148static int stamR3EnumOne(PSTAMDESC pDesc, void *pvArg);
149static bool stamR3MultiMatch(const char * const *papszExpressions, unsigned cExpressions, unsigned *piExpression, const char *pszName);
150static char ** stamR3SplitPattern(const char *pszPat, unsigned *pcExpressions, char **ppszCopy);
151static int stamR3EnumU(PUVM pUVM, const char *pszPat, bool fUpdateRing0, int (pfnCallback)(PSTAMDESC pDesc, void *pvArg), void *pvArg);
152static void stamR3Ring0StatsRegisterU(PUVM pUVM);
153static void stamR3Ring0StatsUpdateU(PUVM pUVM, const char *pszPat);
154static void stamR3Ring0StatsUpdateMultiU(PUVM pUVM, const char * const *papszExpressions, unsigned cExpressions);
155
156#ifdef VBOX_WITH_DEBUGGER
157static DECLCALLBACK(int) stamR3CmdStats(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
158static DECLCALLBACK(void) stamR3EnumDbgfPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...);
159static DECLCALLBACK(int) stamR3CmdStatsReset(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
160#endif
161
162
163/*******************************************************************************
164* Global Variables *
165*******************************************************************************/
166#ifdef VBOX_WITH_DEBUGGER
167/** Pattern argument. */
168static const DBGCVARDESC g_aArgPat[] =
169{
170 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
171 { 0, 1, DBGCVAR_CAT_STRING, 0, "pattern", "Which samples the command shall be applied to. Use '*' as wildcard. Use ';' to separate expression." }
172};
173
174/** Command descriptors. */
175static const DBGCCMD g_aCmds[] =
176{
177 /* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
178 { "stats", 0, 1, &g_aArgPat[0], RT_ELEMENTS(g_aArgPat), NULL, 0, stamR3CmdStats, "[pattern]", "Display statistics." },
179 { "statsreset", 0, 1, &g_aArgPat[0], RT_ELEMENTS(g_aArgPat), NULL, 0, stamR3CmdStatsReset,"[pattern]", "Resets statistics." }
180};
181#endif
182
183
184/**
185 * The GVMM mapping records.
186 */
187static const STAMR0SAMPLE g_aGVMMStats[] =
188{
189 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltCalls", "The number of calls to GVMMR0SchedHalt." },
190 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltBlocking", "The number of times we did go to sleep in GVMMR0SchedHalt." },
191 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltTimeouts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltTimeouts", "The number of times we timed out in GVMMR0SchedHalt." },
192 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltNotBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltNotBlocking", "The number of times we didn't go to sleep in GVMMR0SchedHalt." },
193 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cHaltWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/HaltWakeUps", "The number of wake ups done during GVMMR0SchedHalt." },
194 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpCalls", "The number of calls to GVMMR0WakeUp." },
195 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpNotHalted), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpNotHalted", "The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp was called." },
196 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cWakeUpWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/WakeUpWakeUps", "The number of wake ups done during GVMMR0WakeUp (not counting the explicit one)." },
197 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cPokeCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PokeCalls", "The number of calls to GVMMR0Poke." },
198 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cPokeNotBusy), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PokeNotBusy", "The number of times the EMT thread wasn't actually busy when GVMMR0Poke was called." },
199 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollCalls", "The number of calls to GVMMR0SchedPoll." },
200 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollHalts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollHalts", "The number of times the EMT has halted in a GVMMR0SchedPoll call." },
201 { RT_UOFFSETOF(GVMMSTATS, SchedVM.cPollWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/VM/PollWakeUps", "The number of wake ups done during GVMMR0SchedPoll." },
202
203 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltCalls", "The number of calls to GVMMR0SchedHalt." },
204 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltBlocking", "The number of times we did go to sleep in GVMMR0SchedHalt." },
205 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltTimeouts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltTimeouts", "The number of times we timed out in GVMMR0SchedHalt." },
206 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltNotBlocking), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltNotBlocking", "The number of times we didn't go to sleep in GVMMR0SchedHalt." },
207 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cHaltWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/HaltWakeUps", "The number of wake ups done during GVMMR0SchedHalt." },
208 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpCalls", "The number of calls to GVMMR0WakeUp." },
209 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpNotHalted), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpNotHalted", "The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp was called." },
210 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cWakeUpWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/WakeUpWakeUps", "The number of wake ups done during GVMMR0WakeUp (not counting the explicit one)." },
211 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cPokeCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PokeCalls", "The number of calls to GVMMR0Poke." },
212 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cPokeNotBusy), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PokeNotBusy", "The number of times the EMT thread wasn't actually busy when GVMMR0Poke was called." },
213 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollCalls), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollCalls", "The number of calls to GVMMR0SchedPoll." },
214 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollHalts), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollHalts", "The number of times the EMT has halted in a GVMMR0SchedPoll call." },
215 { RT_UOFFSETOF(GVMMSTATS, SchedSum.cPollWakeUps), STAMTYPE_U64_RESET, STAMUNIT_CALLS, "/GVMM/Sum/PollWakeUps", "The number of wake ups done during GVMMR0SchedPoll." },
216
217 { RT_UOFFSETOF(GVMMSTATS, cVMs), STAMTYPE_U32, STAMUNIT_CALLS, "/GVMM/VMs", "The number of VMs accessible to the caller." },
218 { RT_UOFFSETOF(GVMMSTATS, cEMTs), STAMTYPE_U32, STAMUNIT_CALLS, "/GVMM/EMTs", "The number of emulation threads." },
219};
220
221
222/**
223 * Initializes the STAM.
224 *
225 * @returns VBox status code.
226 * @param pVM The VM to operate on.
227 */
228VMMR3DECL(int) STAMR3InitUVM(PUVM pUVM)
229{
230 LogFlow(("STAMR3Init\n"));
231
232 /*
233 * Assert alignment and sizes.
234 */
235 AssertCompile(sizeof(pUVM->stam.s) <= sizeof(pUVM->stam.padding));
236 AssertRelease(sizeof(pUVM->stam.s) <= sizeof(pUVM->stam.padding));
237
238 /*
239 * Setup any fixed pointers and offsets.
240 */
241 int rc = RTSemRWCreate(&pUVM->stam.s.RWSem);
242 AssertRCReturn(rc, rc);
243
244 /*
245 * Register the ring-0 statistics (GVMM/GMM).
246 */
247 stamR3Ring0StatsRegisterU(pUVM);
248
249#ifdef VBOX_WITH_DEBUGGER
250 /*
251 * Register debugger commands.
252 */
253 static bool fRegisteredCmds = false;
254 if (!fRegisteredCmds)
255 {
256 rc = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
257 if (RT_SUCCESS(rc))
258 fRegisteredCmds = true;
259 }
260#endif
261
262 return VINF_SUCCESS;
263}
264
265
266/**
267 * Terminates the STAM.
268 *
269 * @param pUVM Pointer to the user mode VM structure.
270 */
271VMMR3DECL(void) STAMR3TermUVM(PUVM pUVM)
272{
273 /*
274 * Free used memory and the RWLock.
275 */
276 PSTAMDESC pCur = pUVM->stam.s.pHead;
277 while (pCur)
278 {
279 void *pvFree = pCur;
280 pCur = pCur->pNext;
281 RTMemFree(pvFree);
282 }
283 pUVM->stam.s.pHead = NULL;
284
285 Assert(pUVM->stam.s.RWSem != NIL_RTSEMRW);
286 RTSemRWDestroy(pUVM->stam.s.RWSem);
287 pUVM->stam.s.RWSem = NIL_RTSEMRW;
288}
289
290
291/**
292 * Registers a sample with the statistics mamanger.
293 *
294 * Statistics are maintained on a per VM basis and is normally registered
295 * during the VM init stage, but there is nothing preventing you from
296 * register them at runtime.
297 *
298 * Use STAMR3Deregister() to deregister statistics at runtime, however do
299 * not bother calling at termination time.
300 *
301 * It is not possible to register the same sample twice.
302 *
303 * @returns VBox status.
304 * @param pUVM Pointer to the user mode VM structure.
305 * @param pvSample Pointer to the sample.
306 * @param enmType Sample type. This indicates what pvSample is pointing at.
307 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
308 * @param pszName Sample name. The name is on this form "/<component>/<sample>".
309 * Further nesting is possible.
310 * @param enmUnit Sample unit.
311 * @param pszDesc Sample description.
312 */
313VMMR3DECL(int) STAMR3RegisterU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char *pszName, STAMUNIT enmUnit, const char *pszDesc)
314{
315 AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
316 return stamR3RegisterU(pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc);
317}
318
319
320/**
321 * Registers a sample with the statistics mamanger.
322 *
323 * Statistics are maintained on a per VM basis and is normally registered
324 * during the VM init stage, but there is nothing preventing you from
325 * register them at runtime.
326 *
327 * Use STAMR3Deregister() to deregister statistics at runtime, however do
328 * not bother calling at termination time.
329 *
330 * It is not possible to register the same sample twice.
331 *
332 * @returns VBox status.
333 * @param pVM The VM handle.
334 * @param pvSample Pointer to the sample.
335 * @param enmType Sample type. This indicates what pvSample is pointing at.
336 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
337 * @param pszName Sample name. The name is on this form "/<component>/<sample>".
338 * Further nesting is possible.
339 * @param enmUnit Sample unit.
340 * @param pszDesc Sample description.
341 */
342VMMR3DECL(int) STAMR3Register(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char *pszName, STAMUNIT enmUnit, const char *pszDesc)
343{
344 AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
345 return stamR3RegisterU(pVM->pUVM, pvSample, NULL, NULL, enmType, enmVisibility, pszName, enmUnit, pszDesc);
346}
347
348
349/**
350 * Same as STAMR3RegisterU except that the name is specified in a
351 * RTStrPrintf like fashion.
352 *
353 * @returns VBox status.
354 * @param pUVM Pointer to the user mode VM structure.
355 * @param pvSample Pointer to the sample.
356 * @param enmType Sample type. This indicates what pvSample is pointing at.
357 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
358 * @param enmUnit Sample unit.
359 * @param pszDesc Sample description.
360 * @param pszName The sample name format string.
361 * @param ... Arguments to the format string.
362 */
363VMMR3DECL(int) STAMR3RegisterFU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
364 const char *pszDesc, const char *pszName, ...)
365{
366 va_list args;
367 va_start(args, pszName);
368 int rc = STAMR3RegisterVU(pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
369 va_end(args);
370 return rc;
371}
372
373
374/**
375 * Same as STAMR3Register except that the name is specified in a
376 * RTStrPrintf like fashion.
377 *
378 * @returns VBox status.
379 * @param pVM The VM handle.
380 * @param pvSample Pointer to the sample.
381 * @param enmType Sample type. This indicates what pvSample is pointing at.
382 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
383 * @param enmUnit Sample unit.
384 * @param pszDesc Sample description.
385 * @param pszName The sample name format string.
386 * @param ... Arguments to the format string.
387 */
388VMMR3DECL(int) STAMR3RegisterF(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
389 const char *pszDesc, const char *pszName, ...)
390{
391 va_list args;
392 va_start(args, pszName);
393 int rc = STAMR3RegisterVU(pVM->pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
394 va_end(args);
395 return rc;
396}
397
398
399/**
400 * Same as STAMR3Register except that the name is specified in a
401 * RTStrPrintfV like fashion.
402 *
403 * @returns VBox status.
404 * @param pVM The VM handle.
405 * @param pvSample Pointer to the sample.
406 * @param enmType Sample type. This indicates what pvSample is pointing at.
407 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
408 * @param enmUnit Sample unit.
409 * @param pszDesc Sample description.
410 * @param pszName The sample name format string.
411 * @param args Arguments to the format string.
412 */
413VMMR3DECL(int) STAMR3RegisterVU(PUVM pUVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
414 const char *pszDesc, const char *pszName, va_list args)
415{
416 AssertReturn(enmType != STAMTYPE_CALLBACK, VERR_INVALID_PARAMETER);
417
418 char *pszFormattedName;
419 RTStrAPrintfV(&pszFormattedName, pszName, args);
420 if (!pszFormattedName)
421 return VERR_NO_MEMORY;
422
423 int rc = STAMR3RegisterU(pUVM, pvSample, enmType, enmVisibility, pszFormattedName, enmUnit, pszDesc);
424 RTStrFree(pszFormattedName);
425 return rc;
426}
427
428
429/**
430 * Same as STAMR3Register except that the name is specified in a
431 * RTStrPrintfV like fashion.
432 *
433 * @returns VBox status.
434 * @param pVM The VM handle.
435 * @param pvSample Pointer to the sample.
436 * @param enmType Sample type. This indicates what pvSample is pointing at.
437 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
438 * @param enmUnit Sample unit.
439 * @param pszDesc Sample description.
440 * @param pszName The sample name format string.
441 * @param args Arguments to the format string.
442 */
443VMMR3DECL(int) STAMR3RegisterV(PVM pVM, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
444 const char *pszDesc, const char *pszName, va_list args)
445{
446 return STAMR3RegisterVU(pVM->pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
447}
448
449
450/**
451 * Similar to STAMR3Register except for the two callbacks, the implied type (STAMTYPE_CALLBACK),
452 * and name given in an RTStrPrintf like fashion.
453 *
454 * @returns VBox status.
455 * @param pVM The VM handle.
456 * @param pvSample Pointer to the sample.
457 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
458 * @param enmUnit Sample unit.
459 * @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
460 * @param pfnPrint Print the sample.
461 * @param pszDesc Sample description.
462 * @param pszName The sample name format string.
463 * @param ... Arguments to the format string.
464 * @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
465 */
466VMMR3DECL(int) STAMR3RegisterCallback(PVM pVM, void *pvSample, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
467 PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
468 const char *pszDesc, const char *pszName, ...)
469{
470 va_list args;
471 va_start(args, pszName);
472 int rc = STAMR3RegisterCallbackV(pVM, pvSample, enmVisibility, enmUnit, pfnReset, pfnPrint, pszDesc, pszName, args);
473 va_end(args);
474 return rc;
475}
476
477
478/**
479 * Same as STAMR3RegisterCallback() except for the ellipsis which is a va_list here.
480 *
481 * @returns VBox status.
482 * @param pVM The VM handle.
483 * @param pvSample Pointer to the sample.
484 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
485 * @param enmUnit Sample unit.
486 * @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
487 * @param pfnPrint Print the sample.
488 * @param pszDesc Sample description.
489 * @param pszName The sample name format string.
490 * @param args Arguments to the format string.
491 * @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
492 */
493VMMR3DECL(int) STAMR3RegisterCallbackV(PVM pVM, void *pvSample, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit,
494 PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
495 const char *pszDesc, const char *pszName, va_list args)
496{
497 char *pszFormattedName;
498 RTStrAPrintfV(&pszFormattedName, pszName, args);
499 if (!pszFormattedName)
500 return VERR_NO_MEMORY;
501
502 int rc = stamR3RegisterU(pVM->pUVM, pvSample, pfnReset, pfnPrint, STAMTYPE_CALLBACK, enmVisibility, pszFormattedName, enmUnit, pszDesc);
503 RTStrFree(pszFormattedName);
504 return rc;
505}
506
507
508/**
509 * Divide the strings into sub-strings using '/' as delimiter
510 * and then compare them in strcmp fashion.
511 *
512 * @returns Difference.
513 * @retval 0 if equal.
514 * @retval < 0 if psz1 is less than psz2.
515 * @retval > 0 if psz1 greater than psz2.
516 *
517 * @param psz1 The first string.
518 * @param psz2 The second string.
519 */
520static int stamR3SlashCompare(const char *psz1, const char *psz2)
521{
522 for (;;)
523 {
524 unsigned int ch1 = *psz1++;
525 unsigned int ch2 = *psz2++;
526 if (ch1 != ch2)
527 {
528 /* slash is end-of-sub-string, so it trumps everything but '\0'. */
529 if (ch1 == '/')
530 return ch2 ? -1 : 1;
531 if (ch2 == '/')
532 return ch1 ? 1 : -1;
533 return ch1 - ch2;
534 }
535
536 /* done? */
537 if (ch1 == '\0')
538 return 0;
539 }
540}
541
542
543/**
544 * Internal worker for the different register calls.
545 *
546 * @returns VBox status.
547 * @param pUVM Pointer to the user mode VM structure.
548 * @param pvSample Pointer to the sample.
549 * @param pfnReset Callback for resetting the sample. NULL should be used if the sample can't be reset.
550 * @param pfnPrint Print the sample.
551 * @param enmType Sample type. This indicates what pvSample is pointing at.
552 * @param enmVisibility Visibility type specifying whether unused statistics should be visible or not.
553 * @param enmUnit Sample unit.
554 * @param pszDesc Sample description.
555 * @param pszName The sample name format string.
556 * @param args Arguments to the format string.
557 * @remark There is currently no device or driver variant of this API. Add one if it should become necessary!
558 */
559static int stamR3RegisterU(PUVM pUVM, void *pvSample, PFNSTAMR3CALLBACKRESET pfnReset, PFNSTAMR3CALLBACKPRINT pfnPrint,
560 STAMTYPE enmType, STAMVISIBILITY enmVisibility, const char *pszName, STAMUNIT enmUnit, const char *pszDesc)
561{
562 STAM_LOCK_WR(pUVM);
563
564 /*
565 * Check if exists.
566 */
567 PSTAMDESC pPrev = NULL;
568 PSTAMDESC pCur = pUVM->stam.s.pHead;
569 while (pCur)
570 {
571 int iDiff = strcmp(pCur->pszName, pszName);
572 /* passed it */
573 if (iDiff > 0)
574 break;
575 /* found it. */
576 if (!iDiff)
577 {
578 STAM_UNLOCK_WR(pUVM);
579 AssertMsgFailed(("Duplicate sample name: %s\n", pszName));
580 return VERR_ALREADY_EXISTS;
581 }
582
583 /* next */
584 pPrev = pCur;
585 pCur = pCur->pNext;
586 }
587
588 /*
589 * Check that the name doesn't screw up sorting order when taking
590 * slashes into account. The QT4 GUI makes some assumptions.
591 * Problematic chars are: !"#$%&'()*+,-.
592 */
593 Assert(pszName[0] == '/');
594 if (pPrev)
595 Assert(stamR3SlashCompare(pPrev->pszName, pszName) < 0);
596 if (pCur)
597 Assert(stamR3SlashCompare(pCur->pszName, pszName) > 0);
598
599#ifdef VBOX_STRICT
600 /*
601 * Check alignment requirements.
602 */
603 switch (enmType)
604 {
605 /* 8 byte / 64-bit */
606 case STAMTYPE_U64:
607 case STAMTYPE_U64_RESET:
608 case STAMTYPE_X64:
609 case STAMTYPE_X64_RESET:
610 case STAMTYPE_COUNTER:
611 case STAMTYPE_PROFILE:
612 case STAMTYPE_PROFILE_ADV:
613 AssertMsg(!((uintptr_t)pvSample & 7), ("%p - %s\n", pvSample, pszName));
614 break;
615
616 /* 4 byte / 32-bit */
617 case STAMTYPE_RATIO_U32:
618 case STAMTYPE_RATIO_U32_RESET:
619 case STAMTYPE_U32:
620 case STAMTYPE_U32_RESET:
621 case STAMTYPE_X32:
622 case STAMTYPE_X32_RESET:
623 AssertMsg(!((uintptr_t)pvSample & 3), ("%p - %s\n", pvSample, pszName));
624 break;
625
626 /* 2 byte / 32-bit */
627 case STAMTYPE_U16:
628 case STAMTYPE_U16_RESET:
629 case STAMTYPE_X16:
630 case STAMTYPE_X16_RESET:
631 AssertMsg(!((uintptr_t)pvSample & 1), ("%p - %s\n", pvSample, pszName));
632 break;
633
634 /* 1 byte / 8-bit / unaligned */
635 case STAMTYPE_U8:
636 case STAMTYPE_U8_RESET:
637 case STAMTYPE_X8:
638 case STAMTYPE_X8_RESET:
639 case STAMTYPE_CALLBACK:
640 break;
641
642 default:
643 AssertMsgFailed(("%d\n", enmType));
644 break;
645 }
646#endif /* VBOX_STRICT */
647
648 /*
649 * Create a new node and insert it at the current location.
650 */
651 int rc;
652 size_t cchName = strlen(pszName) + 1;
653 size_t cchDesc = pszDesc ? strlen(pszDesc) + 1 : 0;
654 PSTAMDESC pNew = (PSTAMDESC)RTMemAlloc(sizeof(*pNew) + cchName + cchDesc);
655 if (pNew)
656 {
657 pNew->pszName = (char *)memcpy((char *)(pNew + 1), pszName, cchName);
658 pNew->enmType = enmType;
659 pNew->enmVisibility = enmVisibility;
660 if (enmType != STAMTYPE_CALLBACK)
661 pNew->u.pv = pvSample;
662 else
663 {
664 pNew->u.Callback.pvSample = pvSample;
665 pNew->u.Callback.pfnReset = pfnReset;
666 pNew->u.Callback.pfnPrint = pfnPrint;
667 }
668 pNew->enmUnit = enmUnit;
669 pNew->pszDesc = NULL;
670 if (pszDesc)
671 pNew->pszDesc = (char *)memcpy((char *)(pNew + 1) + cchName, pszDesc, cchDesc);
672
673 pNew->pNext = pCur;
674 if (pPrev)
675 pPrev->pNext = pNew;
676 else
677 pUVM->stam.s.pHead = pNew;
678
679 stamR3ResetOne(pNew, pUVM->pVM);
680 rc = VINF_SUCCESS;
681 }
682 else
683 rc = VERR_NO_MEMORY;
684
685 STAM_UNLOCK_WR(pUVM);
686 return rc;
687}
688
689
690/**
691 * Deregisters a sample previously registered by STAR3Register().
692 *
693 * This is intended used for devices which can be unplugged and for
694 * temporary samples.
695 *
696 * @returns VBox status.
697 * @param pUVM Pointer to the user mode VM structure.
698 * @param pvSample Pointer to the sample registered with STAMR3Register().
699 */
700VMMR3DECL(int) STAMR3DeregisterU(PUVM pUVM, void *pvSample)
701{
702 STAM_LOCK_WR(pUVM);
703
704 /*
705 * Search for it.
706 */
707 int rc = VERR_INVALID_HANDLE;
708 PSTAMDESC pPrev = NULL;
709 PSTAMDESC pCur = pUVM->stam.s.pHead;
710 while (pCur)
711 {
712 if (pCur->u.pv == pvSample)
713 {
714 void *pvFree = pCur;
715 pCur = pCur->pNext;
716 if (pPrev)
717 pPrev->pNext = pCur;
718 else
719 pUVM->stam.s.pHead = pCur;
720
721 RTMemFree(pvFree);
722 rc = VINF_SUCCESS;
723 continue;
724 }
725
726 /* next */
727 pPrev = pCur;
728 pCur = pCur->pNext;
729 }
730
731 STAM_UNLOCK_WR(pUVM);
732 return rc;
733}
734
735
736/**
737 * Deregisters a sample previously registered by STAR3Register().
738 *
739 * This is intended used for devices which can be unplugged and for
740 * temporary samples.
741 *
742 * @returns VBox status.
743 * @param pVM The VM handle.
744 * @param pvSample Pointer to the sample registered with STAMR3Register().
745 */
746VMMR3DECL(int) STAMR3Deregister(PVM pVM, void *pvSample)
747{
748 return STAMR3DeregisterU(pVM->pUVM, pvSample);
749}
750
751
752/**
753 * Resets statistics for the specified VM.
754 * It's possible to select a subset of the samples.
755 *
756 * @returns VBox status. (Basically, it cannot fail.)
757 * @param pVM The VM handle.
758 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
759 * If NULL all samples are reset.
760 * @remarks Don't confuse this with the other 'XYZR3Reset' methods, it's not called at VM reset.
761 */
762VMMR3DECL(int) STAMR3ResetU(PUVM pUVM, const char *pszPat)
763{
764 int rc = VINF_SUCCESS;
765
766 /* ring-0 */
767 GVMMRESETSTATISTICSSREQ GVMMReq;
768 //GMMRESETSTATISTICSSREQ GMMReq;
769 bool fGVMMMatched = !pszPat || !*pszPat;
770 //bool fGMMMatched = fGVMMMatched;
771 if (fGVMMMatched)
772 memset(&GVMMReq.Stats, 0xff, sizeof(GVMMReq.Stats));
773 else
774 {
775 char *pszCopy;
776 unsigned cExpressions;
777 char **papszExpressions = stamR3SplitPattern(pszPat, &cExpressions, &pszCopy);
778 if (!papszExpressions)
779 return VERR_NO_MEMORY;
780
781 /* GVMM */
782 memset(&GVMMReq.Stats, 0, sizeof(GVMMReq.Stats));
783 for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
784 if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGVMMStats[i].pszName))
785 {
786 *((uint8_t *)&GVMMReq.Stats + g_aGVMMStats[i].offVar) = 0xff;
787 fGVMMMatched = true;
788 }
789
790 /* GMM */
791// memset(&GMMReq.Stats, 0, sizeof(GMMReq.Stats));
792// for (unsigned i = 0; i < RT_ELEMENTS(g_aGMMStats); i++)
793// if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGMMStats[i].pszName))
794// {
795// *((uint8_t *)&GMMReq.Stats + g_aGMMStats[i].offVar) = 0xff;
796// fGMMMatched = true;
797// }
798
799 RTMemTmpFree(papszExpressions);
800 RTStrFree(pszCopy);
801 }
802
803 STAM_LOCK_WR(pUVM);
804 if (fGVMMMatched)
805 {
806 PVM pVM = pUVM->pVM;
807 GVMMReq.Hdr.cbReq = sizeof(GVMMReq);
808 GVMMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
809 GVMMReq.pSession = pVM->pSession;
810 rc = SUPR3CallVMMR0Ex(pVM->pVMR0, NIL_VMCPUID, VMMR0_DO_GVMM_RESET_STATISTICS, 0, &GVMMReq.Hdr);
811 }
812
813// if (fGMMMatched)
814// {
815// PVM pVM = pUVM->pVM;
816// GMMReq.Hdr.cbReq = sizeof(Req);
817// GMMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
818// GMMReq.pSession = pVM->pSession;
819// rc = SUPR3CallVMMR0Ex(pVM->pVMR0, VMMR0_DO_GMM_RESET_STATISTICS, 0, &Req.Hdr);
820// }
821
822 /* and the reset */
823 stamR3EnumU(pUVM, pszPat, false /* fUpdateRing0 */, stamR3ResetOne, pUVM->pVM);
824
825 STAM_UNLOCK_WR(pUVM);
826 return rc;
827}
828
829/**
830 * Resets statistics for the specified VM.
831 * It's possible to select a subset of the samples.
832 *
833 * @returns VBox status. (Basically, it cannot fail.)
834 * @param pVM The VM handle.
835 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
836 * If NULL all samples are reset.
837 * @remarks Don't confuse this with the other 'XYZR3Reset' methods, it's not called at VM reset.
838 */
839VMMR3DECL(int) STAMR3Reset(PVM pVM, const char *pszPat)
840{
841 return STAMR3ResetU(pVM->pUVM, pszPat);
842}
843
844
845/**
846 * Resets one statistics sample.
847 * Callback for stamR3EnumU().
848 *
849 * @returns VINF_SUCCESS
850 * @param pDesc Pointer to the current descriptor.
851 * @param pvArg User argument - The VM handle.
852 */
853static int stamR3ResetOne(PSTAMDESC pDesc, void *pvArg)
854{
855 switch (pDesc->enmType)
856 {
857 case STAMTYPE_COUNTER:
858 ASMAtomicXchgU64(&pDesc->u.pCounter->c, 0);
859 break;
860
861 case STAMTYPE_PROFILE:
862 case STAMTYPE_PROFILE_ADV:
863 ASMAtomicXchgU64(&pDesc->u.pProfile->cPeriods, 0);
864 ASMAtomicXchgU64(&pDesc->u.pProfile->cTicks, 0);
865 ASMAtomicXchgU64(&pDesc->u.pProfile->cTicksMax, 0);
866 ASMAtomicXchgU64(&pDesc->u.pProfile->cTicksMin, ~0);
867 break;
868
869 case STAMTYPE_RATIO_U32_RESET:
870 ASMAtomicXchgU32(&pDesc->u.pRatioU32->u32A, 0);
871 ASMAtomicXchgU32(&pDesc->u.pRatioU32->u32B, 0);
872 break;
873
874 case STAMTYPE_CALLBACK:
875 if (pDesc->u.Callback.pfnReset)
876 pDesc->u.Callback.pfnReset((PVM)pvArg, pDesc->u.Callback.pvSample);
877 break;
878
879 case STAMTYPE_U8_RESET:
880 case STAMTYPE_X8_RESET:
881 ASMAtomicXchgU8(pDesc->u.pu8, 0);
882 break;
883
884 case STAMTYPE_U16_RESET:
885 case STAMTYPE_X16_RESET:
886 ASMAtomicXchgU16(pDesc->u.pu16, 0);
887 break;
888
889 case STAMTYPE_U32_RESET:
890 case STAMTYPE_X32_RESET:
891 ASMAtomicXchgU32(pDesc->u.pu32, 0);
892 break;
893
894 case STAMTYPE_U64_RESET:
895 case STAMTYPE_X64_RESET:
896 ASMAtomicXchgU64(pDesc->u.pu64, 0);
897 break;
898
899 /* These are custom and will not be touched. */
900 case STAMTYPE_U8:
901 case STAMTYPE_X8:
902 case STAMTYPE_U16:
903 case STAMTYPE_X16:
904 case STAMTYPE_U32:
905 case STAMTYPE_X32:
906 case STAMTYPE_U64:
907 case STAMTYPE_X64:
908 case STAMTYPE_RATIO_U32:
909 break;
910
911 default:
912 AssertMsgFailed(("enmType=%d\n", pDesc->enmType));
913 break;
914 }
915 NOREF(pvArg);
916 return VINF_SUCCESS;
917}
918
919
920/**
921 * Get a snapshot of the statistics.
922 * It's possible to select a subset of the samples.
923 *
924 * @returns VBox status. (Basically, it cannot fail.)
925 * @param pUVM Pointer to the user mode VM structure.
926 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
927 * If NULL all samples are reset.
928 * @param fWithDesc Whether to include the descriptions.
929 * @param ppszSnapshot Where to store the pointer to the snapshot data.
930 * The format of the snapshot should be XML, but that will have to be discussed
931 * when this function is implemented.
932 * The returned pointer must be freed by calling STAMR3SnapshotFree().
933 * @param pcchSnapshot Where to store the size of the snapshot data. (Excluding the trailing '\0')
934 */
935VMMR3DECL(int) STAMR3SnapshotU(PUVM pUVM, const char *pszPat, char **ppszSnapshot, size_t *pcchSnapshot, bool fWithDesc)
936{
937 STAMR3SNAPSHOTONE State = { NULL, NULL, NULL, pUVM->pVM, 0, VINF_SUCCESS, fWithDesc };
938
939 /*
940 * Write the XML header.
941 */
942 /** @todo Make this proper & valid XML. */
943 stamR3SnapshotPrintf(&State, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
944
945 /*
946 * Write the content.
947 */
948 stamR3SnapshotPrintf(&State, "<Statistics>\n");
949 STAM_LOCK_RD(pUVM);
950 int rc = stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3SnapshotOne, &State);
951 STAM_UNLOCK_RD(pUVM);
952 stamR3SnapshotPrintf(&State, "</Statistics>\n");
953
954 if (RT_SUCCESS(rc))
955 rc = State.rc;
956 else
957 {
958 RTMemFree(State.pszStart);
959 State.pszStart = State.pszEnd = State.psz = NULL;
960 State.cbAllocated = 0;
961 }
962
963 /*
964 * Done.
965 */
966 *ppszSnapshot = State.pszStart;
967 if (pcchSnapshot)
968 *pcchSnapshot = State.psz - State.pszStart;
969 return rc;
970}
971
972
973/**
974 * Get a snapshot of the statistics.
975 * It's possible to select a subset of the samples.
976 *
977 * @returns VBox status. (Basically, it cannot fail.)
978 * @param pVM The VM handle.
979 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
980 * If NULL all samples are reset.
981 * @param fWithDesc Whether to include the descriptions.
982 * @param ppszSnapshot Where to store the pointer to the snapshot data.
983 * The format of the snapshot should be XML, but that will have to be discussed
984 * when this function is implemented.
985 * The returned pointer must be freed by calling STAMR3SnapshotFree().
986 * @param pcchSnapshot Where to store the size of the snapshot data.
987 * (Excluding the trailing '\\0')
988 */
989VMMR3DECL(int) STAMR3Snapshot(PVM pVM, const char *pszPat, char **ppszSnapshot, size_t *pcchSnapshot, bool fWithDesc)
990{
991 return STAMR3SnapshotU(pVM->pUVM, pszPat, ppszSnapshot, pcchSnapshot, fWithDesc);
992}
993
994
995/**
996 * stamR3EnumU callback employed by STAMR3Snapshot.
997 *
998 * @returns VBox status code, but it's interpreted as 0 == success / !0 == failure by enmR3Enum.
999 * @param pDesc The sample.
1000 * @param pvArg The snapshot status structure.
1001 */
1002static int stamR3SnapshotOne(PSTAMDESC pDesc, void *pvArg)
1003{
1004 PSTAMR3SNAPSHOTONE pThis = (PSTAMR3SNAPSHOTONE)pvArg;
1005
1006 switch (pDesc->enmType)
1007 {
1008 case STAMTYPE_COUNTER:
1009 if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pCounter->c == 0)
1010 return VINF_SUCCESS;
1011 stamR3SnapshotPrintf(pThis, "<Counter c=\"%lld\"", pDesc->u.pCounter->c);
1012 break;
1013
1014 case STAMTYPE_PROFILE:
1015 case STAMTYPE_PROFILE_ADV:
1016 if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pProfile->cPeriods == 0)
1017 return VINF_SUCCESS;
1018 stamR3SnapshotPrintf(pThis, "<Profile cPeriods=\"%lld\" cTicks=\"%lld\" cTicksMin=\"%lld\" cTicksMax=\"%lld\"",
1019 pDesc->u.pProfile->cPeriods, pDesc->u.pProfile->cTicks, pDesc->u.pProfile->cTicksMin,
1020 pDesc->u.pProfile->cTicksMax);
1021 break;
1022
1023 case STAMTYPE_RATIO_U32:
1024 case STAMTYPE_RATIO_U32_RESET:
1025 if (pDesc->enmVisibility == STAMVISIBILITY_USED && !pDesc->u.pRatioU32->u32A && !pDesc->u.pRatioU32->u32B)
1026 return VINF_SUCCESS;
1027 stamR3SnapshotPrintf(pThis, "<Ratio32 u32A=\"%lld\" u32B=\"%lld\"",
1028 pDesc->u.pRatioU32->u32A, pDesc->u.pRatioU32->u32B);
1029 break;
1030
1031 case STAMTYPE_CALLBACK:
1032 {
1033 char szBuf[512];
1034 pDesc->u.Callback.pfnPrint(pThis->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
1035 stamR3SnapshotPrintf(pThis, "<Callback val=\"%s\"", szBuf);
1036 break;
1037 }
1038
1039 case STAMTYPE_U8:
1040 case STAMTYPE_U8_RESET:
1041 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1042 return VINF_SUCCESS;
1043 stamR3SnapshotPrintf(pThis, "<U8 val=\"%u\"", *pDesc->u.pu8);
1044 break;
1045
1046 case STAMTYPE_X8:
1047 case STAMTYPE_X8_RESET:
1048 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1049 return VINF_SUCCESS;
1050 stamR3SnapshotPrintf(pThis, "<X8 val=\"%#x\"", *pDesc->u.pu8);
1051 break;
1052
1053 case STAMTYPE_U16:
1054 case STAMTYPE_U16_RESET:
1055 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1056 return VINF_SUCCESS;
1057 stamR3SnapshotPrintf(pThis, "<U16 val=\"%u\"", *pDesc->u.pu16);
1058 break;
1059
1060 case STAMTYPE_X16:
1061 case STAMTYPE_X16_RESET:
1062 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1063 return VINF_SUCCESS;
1064 stamR3SnapshotPrintf(pThis, "<X16 val=\"%#x\"", *pDesc->u.pu16);
1065 break;
1066
1067 case STAMTYPE_U32:
1068 case STAMTYPE_U32_RESET:
1069 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1070 return VINF_SUCCESS;
1071 stamR3SnapshotPrintf(pThis, "<U32 val=\"%u\"", *pDesc->u.pu32);
1072 break;
1073
1074 case STAMTYPE_X32:
1075 case STAMTYPE_X32_RESET:
1076 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1077 return VINF_SUCCESS;
1078 stamR3SnapshotPrintf(pThis, "<X32 val=\"%#x\"", *pDesc->u.pu32);
1079 break;
1080
1081 case STAMTYPE_U64:
1082 case STAMTYPE_U64_RESET:
1083 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1084 return VINF_SUCCESS;
1085 stamR3SnapshotPrintf(pThis, "<U64 val=\"%llu\"", *pDesc->u.pu64);
1086 break;
1087
1088 case STAMTYPE_X64:
1089 case STAMTYPE_X64_RESET:
1090 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1091 return VINF_SUCCESS;
1092 stamR3SnapshotPrintf(pThis, "<X64 val=\"%#llx\"", *pDesc->u.pu64);
1093 break;
1094
1095 default:
1096 AssertMsgFailed(("%d\n", pDesc->enmType));
1097 return 0;
1098 }
1099
1100 stamR3SnapshotPrintf(pThis, " unit=\"%s\"", STAMR3GetUnit(pDesc->enmUnit));
1101
1102 switch (pDesc->enmVisibility)
1103 {
1104 default:
1105 case STAMVISIBILITY_ALWAYS:
1106 break;
1107 case STAMVISIBILITY_USED:
1108 stamR3SnapshotPrintf(pThis, " vis=\"used\"");
1109 break;
1110 case STAMVISIBILITY_NOT_GUI:
1111 stamR3SnapshotPrintf(pThis, " vis=\"not-gui\"");
1112 break;
1113 }
1114
1115 stamR3SnapshotPrintf(pThis, " name=\"%s\"", pDesc->pszName);
1116
1117 if (pThis->fWithDesc && pDesc->pszDesc)
1118 {
1119 /*
1120 * The description is a bit tricky as it may include chars that
1121 * xml requires to be escaped.
1122 */
1123 const char *pszBadChar = strpbrk(pDesc->pszDesc, "&<>\"'");
1124 if (!pszBadChar)
1125 return stamR3SnapshotPrintf(pThis, " desc=\"%s\"/>\n", pDesc->pszDesc);
1126
1127 stamR3SnapshotPrintf(pThis, " desc=\"");
1128 const char *pszCur = pDesc->pszDesc;
1129 do
1130 {
1131 stamR3SnapshotPrintf(pThis, "%.*s", pszBadChar - pszCur, pszCur);
1132 switch (*pszBadChar)
1133 {
1134 case '&': stamR3SnapshotPrintf(pThis, "&amp;"); break;
1135 case '<': stamR3SnapshotPrintf(pThis, "&lt;"); break;
1136 case '>': stamR3SnapshotPrintf(pThis, "&gt;"); break;
1137 case '"': stamR3SnapshotPrintf(pThis, "&quot;"); break;
1138 case '\'': stamR3SnapshotPrintf(pThis, "&apos;"); break;
1139 default: AssertMsgFailed(("%c", *pszBadChar)); break;
1140 }
1141 pszCur = pszBadChar + 1;
1142 pszBadChar = strpbrk(pszCur, "&<>\"'");
1143 } while (pszBadChar);
1144 return stamR3SnapshotPrintf(pThis, "%s\"/>\n", pszCur);
1145 }
1146 return stamR3SnapshotPrintf(pThis, "/>\n");
1147}
1148
1149
1150/**
1151 * Output callback for stamR3SnapshotPrintf.
1152 *
1153 * @returns number of bytes written.
1154 * @param pvArg The snapshot status structure.
1155 * @param pach Pointer to an array of characters (bytes).
1156 * @param cch The number or chars (bytes) to write from the array.
1157 */
1158static DECLCALLBACK(size_t) stamR3SnapshotOutput(void *pvArg, const char *pach, size_t cch)
1159{
1160 PSTAMR3SNAPSHOTONE pThis = (PSTAMR3SNAPSHOTONE)pvArg;
1161
1162 /*
1163 * Make sure we've got space for it.
1164 */
1165 if (RT_UNLIKELY((uintptr_t)pThis->pszEnd - (uintptr_t)pThis->psz < cch + 1))
1166 {
1167 if (RT_FAILURE(pThis->rc))
1168 return 0;
1169
1170 size_t cbNewSize = pThis->cbAllocated;
1171 if (cbNewSize > cch)
1172 cbNewSize *= 2;
1173 else
1174 cbNewSize += RT_ALIGN(cch + 1, 0x1000);
1175 char *pszNew = (char *)RTMemRealloc(pThis->pszStart, cbNewSize);
1176 if (!pszNew)
1177 {
1178 /*
1179 * Free up immediately, out-of-memory is bad news and this
1180 * isn't an important allocations / API.
1181 */
1182 pThis->rc = VERR_NO_MEMORY;
1183 RTMemFree(pThis->pszStart);
1184 pThis->pszStart = pThis->pszEnd = pThis->psz = NULL;
1185 pThis->cbAllocated = 0;
1186 return 0;
1187 }
1188
1189 pThis->psz = pszNew + (pThis->psz - pThis->pszStart);
1190 pThis->pszStart = pszNew;
1191 pThis->pszEnd = pszNew + cbNewSize;
1192 pThis->cbAllocated = cbNewSize;
1193 }
1194
1195 /*
1196 * Copy the chars to the buffer and terminate it.
1197 */
1198 memcpy(pThis->psz, pach, cch);
1199 pThis->psz += cch;
1200 *pThis->psz = '\0';
1201 return cch;
1202}
1203
1204
1205/**
1206 * Wrapper around RTStrFormatV for use by the snapshot API.
1207 *
1208 * @returns VBox status code.
1209 * @param pThis The snapshot status structure.
1210 * @param pszFormat The format string.
1211 * @param ... Optional arguments.
1212 */
1213static int stamR3SnapshotPrintf(PSTAMR3SNAPSHOTONE pThis, const char *pszFormat, ...)
1214{
1215 va_list va;
1216 va_start(va, pszFormat);
1217 RTStrFormatV(stamR3SnapshotOutput, pThis, NULL, NULL, pszFormat, va);
1218 va_end(va);
1219 return pThis->rc;
1220}
1221
1222
1223/**
1224 * Releases a statistics snapshot returned by STAMR3Snapshot().
1225 *
1226 * @returns VBox status.
1227 * @param pUVM Pointer to the user mode VM structure.
1228 * @param pszSnapshot The snapshot data pointer returned by STAMR3Snapshot().
1229 * NULL is allowed.
1230 */
1231VMMR3DECL(int) STAMR3SnapshotFreeU(PUVM pUVM, char *pszSnapshot)
1232{
1233 if (!pszSnapshot)
1234 RTMemFree(pszSnapshot);
1235 return VINF_SUCCESS;
1236}
1237
1238
1239/**
1240 * Releases a statistics snapshot returned by STAMR3Snapshot().
1241 *
1242 * @returns VBox status.
1243 * @param pVM The VM handle.
1244 * @param pszSnapshot The snapshot data pointer returned by STAMR3Snapshot().
1245 * NULL is allowed.
1246 */
1247VMMR3DECL(int) STAMR3SnapshotFree(PVM pVM, char *pszSnapshot)
1248{
1249 return STAMR3SnapshotFreeU(pVM->pUVM, pszSnapshot);
1250}
1251
1252
1253/**
1254 * Dumps the selected statistics to the log.
1255 *
1256 * @returns VBox status.
1257 * @param pUVM Pointer to the user mode VM structure.
1258 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1259 * If NULL all samples are written to the log.
1260 */
1261VMMR3DECL(int) STAMR3DumpU(PUVM pUVM, const char *pszPat)
1262{
1263 STAMR3PRINTONEARGS Args;
1264 Args.pVM = pUVM->pVM;
1265 Args.pvArg = NULL;
1266 Args.pfnPrintf = stamR3EnumLogPrintf;
1267
1268 STAM_LOCK_RD(pUVM);
1269 stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1270 STAM_UNLOCK_RD(pUVM);
1271 return VINF_SUCCESS;
1272}
1273
1274
1275/**
1276 * Dumps the selected statistics to the log.
1277 *
1278 * @returns VBox status.
1279 * @param pVM The VM handle.
1280 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1281 * If NULL all samples are written to the log.
1282 */
1283VMMR3DECL(int) STAMR3Dump(PVM pVM, const char *pszPat)
1284{
1285 return STAMR3DumpU(pVM->pUVM, pszPat);
1286}
1287
1288
1289/**
1290 * Prints to the log.
1291 *
1292 * @param pArgs Pointer to the print one argument structure.
1293 * @param pszFormat Format string.
1294 * @param ... Format arguments.
1295 */
1296static DECLCALLBACK(void) stamR3EnumLogPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1297{
1298 va_list va;
1299 va_start(va, pszFormat);
1300 RTLogPrintfV(pszFormat, va);
1301 va_end(va);
1302 NOREF(pArgs);
1303}
1304
1305
1306/**
1307 * Dumps the selected statistics to the release log.
1308 *
1309 * @returns VBox status.
1310 * @param pUVM Pointer to the user mode VM structure.
1311 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1312 * If NULL all samples are written to the log.
1313 */
1314VMMR3DECL(int) STAMR3DumpToReleaseLogU(PUVM pUVM, const char *pszPat)
1315{
1316 STAMR3PRINTONEARGS Args;
1317 Args.pVM = pUVM->pVM;
1318 Args.pvArg = NULL;
1319 Args.pfnPrintf = stamR3EnumRelLogPrintf;
1320
1321 STAM_LOCK_RD(pUVM);
1322 stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1323 STAM_UNLOCK_RD(pUVM);
1324 return VINF_SUCCESS;
1325}
1326
1327
1328/**
1329 * Dumps the selected statistics to the release log.
1330 *
1331 * @returns VBox status.
1332 * @param pVM The VM handle.
1333 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1334 * If NULL all samples are written to the log.
1335 */
1336VMMR3DECL(int) STAMR3DumpToReleaseLog(PVM pVM, const char *pszPat)
1337{
1338 return STAMR3DumpToReleaseLogU(pVM->pUVM, pszPat);
1339}
1340
1341
1342/**
1343 * Prints to the release log.
1344 *
1345 * @param pArgs Pointer to the print one argument structure.
1346 * @param pszFormat Format string.
1347 * @param ... Format arguments.
1348 */
1349static DECLCALLBACK(void) stamR3EnumRelLogPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1350{
1351 va_list va;
1352 va_start(va, pszFormat);
1353 RTLogRelPrintfV(pszFormat, va);
1354 va_end(va);
1355 NOREF(pArgs);
1356}
1357
1358
1359/**
1360 * Prints the selected statistics to standard out.
1361 *
1362 * @returns VBox status.
1363 * @param pVM The VM handle.
1364 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1365 * If NULL all samples are reset.
1366 */
1367VMMR3DECL(int) STAMR3PrintU(PUVM pUVM, const char *pszPat)
1368{
1369 STAMR3PRINTONEARGS Args;
1370 Args.pVM = pUVM->pVM;
1371 Args.pvArg = NULL;
1372 Args.pfnPrintf = stamR3EnumPrintf;
1373
1374 STAM_LOCK_RD(pUVM);
1375 stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1376 STAM_UNLOCK_RD(pUVM);
1377 return VINF_SUCCESS;
1378}
1379
1380
1381/**
1382 * Prints the selected statistics to standard out.
1383 *
1384 * @returns VBox status.
1385 * @param pVM The VM handle.
1386 * @param pszPat The name matching pattern. See somewhere_where_this_is_described_in_detail.
1387 * If NULL all samples are reset.
1388 */
1389VMMR3DECL(int) STAMR3Print(PVM pVM, const char *pszPat)
1390{
1391 return STAMR3PrintU(pVM->pUVM, pszPat);
1392}
1393
1394
1395/**
1396 * Prints to stdout.
1397 *
1398 * @param pArgs Pointer to the print one argument structure.
1399 * @param pszFormat Format string.
1400 * @param ... Format arguments.
1401 */
1402static DECLCALLBACK(void) stamR3EnumPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1403{
1404 va_list va;
1405 va_start(va, pszFormat);
1406 RTPrintfV(pszFormat, va);
1407 va_end(va);
1408 NOREF(pArgs);
1409}
1410
1411
1412/**
1413 * Prints one sample.
1414 * Callback for stamR3EnumU().
1415 *
1416 * @returns VINF_SUCCESS
1417 * @param pDesc Pointer to the current descriptor.
1418 * @param pvArg User argument - STAMR3PRINTONEARGS.
1419 */
1420static int stamR3PrintOne(PSTAMDESC pDesc, void *pvArg)
1421{
1422 PSTAMR3PRINTONEARGS pArgs = (PSTAMR3PRINTONEARGS)pvArg;
1423
1424 switch (pDesc->enmType)
1425 {
1426 case STAMTYPE_COUNTER:
1427 if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pCounter->c == 0)
1428 return VINF_SUCCESS;
1429
1430 pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, pDesc->u.pCounter->c, STAMR3GetUnit(pDesc->enmUnit));
1431 break;
1432
1433 case STAMTYPE_PROFILE:
1434 case STAMTYPE_PROFILE_ADV:
1435 {
1436 if (pDesc->enmVisibility == STAMVISIBILITY_USED && pDesc->u.pProfile->cPeriods == 0)
1437 return VINF_SUCCESS;
1438
1439 uint64_t u64 = pDesc->u.pProfile->cPeriods ? pDesc->u.pProfile->cPeriods : 1;
1440 pArgs->pfnPrintf(pArgs, "%-32s %8llu %s (%12llu ticks, %7llu times, max %9llu, min %7lld)\n", pDesc->pszName,
1441 pDesc->u.pProfile->cTicks / u64, STAMR3GetUnit(pDesc->enmUnit),
1442 pDesc->u.pProfile->cTicks, pDesc->u.pProfile->cPeriods, pDesc->u.pProfile->cTicksMax, pDesc->u.pProfile->cTicksMin);
1443 break;
1444 }
1445
1446 case STAMTYPE_RATIO_U32:
1447 case STAMTYPE_RATIO_U32_RESET:
1448 if (pDesc->enmVisibility == STAMVISIBILITY_USED && !pDesc->u.pRatioU32->u32A && !pDesc->u.pRatioU32->u32B)
1449 return VINF_SUCCESS;
1450 pArgs->pfnPrintf(pArgs, "%-32s %8u:%-8u %s\n", pDesc->pszName,
1451 pDesc->u.pRatioU32->u32A, pDesc->u.pRatioU32->u32B, STAMR3GetUnit(pDesc->enmUnit));
1452 break;
1453
1454 case STAMTYPE_CALLBACK:
1455 {
1456 char szBuf[512];
1457 pDesc->u.Callback.pfnPrint(pArgs->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
1458 pArgs->pfnPrintf(pArgs, "%-32s %s %s\n", pDesc->pszName, szBuf, STAMR3GetUnit(pDesc->enmUnit));
1459 break;
1460 }
1461
1462 case STAMTYPE_U8:
1463 case STAMTYPE_U8_RESET:
1464 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1465 return VINF_SUCCESS;
1466 pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu8, STAMR3GetUnit(pDesc->enmUnit));
1467 break;
1468
1469 case STAMTYPE_X8:
1470 case STAMTYPE_X8_RESET:
1471 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu8 == 0)
1472 return VINF_SUCCESS;
1473 pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu8, STAMR3GetUnit(pDesc->enmUnit));
1474 break;
1475
1476 case STAMTYPE_U16:
1477 case STAMTYPE_U16_RESET:
1478 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1479 return VINF_SUCCESS;
1480 pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu16, STAMR3GetUnit(pDesc->enmUnit));
1481 break;
1482
1483 case STAMTYPE_X16:
1484 case STAMTYPE_X16_RESET:
1485 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu16 == 0)
1486 return VINF_SUCCESS;
1487 pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu16, STAMR3GetUnit(pDesc->enmUnit));
1488 break;
1489
1490 case STAMTYPE_U32:
1491 case STAMTYPE_U32_RESET:
1492 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1493 return VINF_SUCCESS;
1494 pArgs->pfnPrintf(pArgs, "%-32s %8u %s\n", pDesc->pszName, *pDesc->u.pu32, STAMR3GetUnit(pDesc->enmUnit));
1495 break;
1496
1497 case STAMTYPE_X32:
1498 case STAMTYPE_X32_RESET:
1499 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu32 == 0)
1500 return VINF_SUCCESS;
1501 pArgs->pfnPrintf(pArgs, "%-32s %8x %s\n", pDesc->pszName, *pDesc->u.pu32, STAMR3GetUnit(pDesc->enmUnit));
1502 break;
1503
1504 case STAMTYPE_U64:
1505 case STAMTYPE_U64_RESET:
1506 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1507 return VINF_SUCCESS;
1508 pArgs->pfnPrintf(pArgs, "%-32s %8llu %s\n", pDesc->pszName, *pDesc->u.pu64, STAMR3GetUnit(pDesc->enmUnit));
1509 break;
1510
1511 case STAMTYPE_X64:
1512 case STAMTYPE_X64_RESET:
1513 if (pDesc->enmVisibility == STAMVISIBILITY_USED && *pDesc->u.pu64 == 0)
1514 return VINF_SUCCESS;
1515 pArgs->pfnPrintf(pArgs, "%-32s %8llx %s\n", pDesc->pszName, *pDesc->u.pu64, STAMR3GetUnit(pDesc->enmUnit));
1516 break;
1517
1518 default:
1519 AssertMsgFailed(("enmType=%d\n", pDesc->enmType));
1520 break;
1521 }
1522 NOREF(pvArg);
1523 return VINF_SUCCESS;
1524}
1525
1526
1527/**
1528 * Enumerate the statistics by the means of a callback function.
1529 *
1530 * @returns Whatever the callback returns.
1531 *
1532 * @param pUVM Pointer to the user mode VM structure.
1533 * @param pszPat The pattern to match samples.
1534 * @param pfnEnum The callback function.
1535 * @param pvUser The pvUser argument of the callback function.
1536 */
1537VMMR3DECL(int) STAMR3EnumU(PUVM pUVM, const char *pszPat, PFNSTAMR3ENUM pfnEnum, void *pvUser)
1538{
1539 STAMR3ENUMONEARGS Args;
1540 Args.pVM = pUVM->pVM;
1541 Args.pfnEnum = pfnEnum;
1542 Args.pvUser = pvUser;
1543
1544 STAM_LOCK_RD(pUVM);
1545 int rc = stamR3EnumU(pUVM, pszPat, true /* fUpdateRing0 */, stamR3EnumOne, &Args);
1546 STAM_UNLOCK_RD(pUVM);
1547 return rc;
1548}
1549
1550
1551/**
1552 * Enumerate the statistics by the means of a callback function.
1553 *
1554 * @returns Whatever the callback returns.
1555 *
1556 * @param pVM The VM handle.
1557 * @param pszPat The pattern to match samples.
1558 * @param pfnEnum The callback function.
1559 * @param pvUser The pvUser argument of the callback function.
1560 */
1561VMMR3DECL(int) STAMR3Enum(PVM pVM, const char *pszPat, PFNSTAMR3ENUM pfnEnum, void *pvUser)
1562{
1563 return STAMR3EnumU(pVM->pUVM, pszPat, pfnEnum, pvUser);
1564}
1565
1566
1567/**
1568 * Callback function for STARTR3Enum().
1569 *
1570 * @returns whatever the callback returns.
1571 * @param pDesc Pointer to the current descriptor.
1572 * @param pvArg Points to a STAMR3ENUMONEARGS structure.
1573 */
1574static int stamR3EnumOne(PSTAMDESC pDesc, void *pvArg)
1575{
1576 PSTAMR3ENUMONEARGS pArgs = (PSTAMR3ENUMONEARGS)pvArg;
1577 int rc;
1578 if (pDesc->enmType == STAMTYPE_CALLBACK)
1579 {
1580 /* Give the enumerator something useful. */
1581 char szBuf[512];
1582 pDesc->u.Callback.pfnPrint(pArgs->pVM, pDesc->u.Callback.pvSample, szBuf, sizeof(szBuf));
1583 rc = pArgs->pfnEnum(pDesc->pszName, pDesc->enmType, szBuf, pDesc->enmUnit,
1584 pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
1585 }
1586 else
1587 rc = pArgs->pfnEnum(pDesc->pszName, pDesc->enmType, pDesc->u.pv, pDesc->enmUnit,
1588 pDesc->enmVisibility, pDesc->pszDesc, pArgs->pvUser);
1589 return rc;
1590}
1591
1592
1593/**
1594 * Match a name against an array of patterns.
1595 *
1596 * @returns true if it matches, false if it doesn't match.
1597 * @param papszExpressions The array of pattern expressions.
1598 * @param cExpressions The number of array entries.
1599 * @param piExpression Where to read/store the current skip index. Optional.
1600 * @param pszName The name to match.
1601 */
1602static bool stamR3MultiMatch(const char * const *papszExpressions, unsigned cExpressions,
1603 unsigned *piExpression, const char *pszName)
1604{
1605 for (unsigned i = piExpression ? *piExpression : 0; i < cExpressions; i++)
1606 {
1607 const char *pszPat = papszExpressions[i];
1608 if (RTStrSimplePatternMatch(pszPat, pszName))
1609 {
1610 /* later:
1611 if (piExpression && i > *piExpression)
1612 {
1613 check if we can skip some expressions
1614 }*/
1615 return true;
1616 }
1617 }
1618 return false;
1619}
1620
1621
1622/**
1623 * Splits a multi pattern into single ones.
1624 *
1625 * @returns Pointer to an array of single patterns. Free it with RTMemTmpFree.
1626 * @param pszPat The pattern to split.
1627 * @param pcExpressions The number of array elements.
1628 * @param pszCopy The pattern copy to free using RTStrFree.
1629 */
1630static char **stamR3SplitPattern(const char *pszPat, unsigned *pcExpressions, char **ppszCopy)
1631{
1632 Assert(pszPat && *pszPat);
1633
1634 char *pszCopy = RTStrDup(pszPat);
1635 if (!pszCopy)
1636 return NULL;
1637
1638 /* count them & allocate array. */
1639 char *psz = pszCopy;
1640 unsigned cExpressions = 1;
1641 while ((psz = strchr(psz, '|')) != NULL)
1642 cExpressions++, psz++;
1643
1644 char **papszExpressions = (char **)RTMemTmpAllocZ((cExpressions + 1) * sizeof(char *));
1645 if (!papszExpressions)
1646 {
1647 RTStrFree(pszCopy);
1648 return NULL;
1649 }
1650
1651 /* split */
1652 psz = pszCopy;
1653 for (unsigned i = 0;;)
1654 {
1655 papszExpressions[i] = psz;
1656 if (++i >= cExpressions)
1657 break;
1658 psz = strchr(psz, '|');
1659 *psz++ = '\0';
1660 }
1661
1662 /* sort the array, putting '*' last. */
1663 /** @todo sort it... */
1664
1665 *pcExpressions = cExpressions;
1666 *ppszCopy = pszCopy;
1667 return papszExpressions;
1668}
1669
1670
1671/**
1672 * Enumerates the nodes selected by a pattern or all nodes if no pattern
1673 * is specified.
1674 *
1675 * The call must own at least a read lock to the STAM data.
1676 *
1677 * @returns The rc from the callback.
1678 * @param pUVM Pointer to the user mode VM structure.
1679 * @param pszPat Pattern.
1680 * @param fUpdateRing0 Update the ring-0 .
1681 * @param pfnCallback Callback function which shall be called for matching nodes.
1682 * If it returns anything but VINF_SUCCESS the enumeration is
1683 * terminated and the status code returned to the caller.
1684 * @param pvArg User parameter for the callback.
1685 */
1686static int stamR3EnumU(PUVM pUVM, const char *pszPat, bool fUpdateRing0, int (*pfnCallback)(PSTAMDESC pDesc, void *pvArg), void *pvArg)
1687{
1688 int rc = VINF_SUCCESS;
1689
1690 /*
1691 * All
1692 */
1693 if (!pszPat || !*pszPat || !strcmp(pszPat, "*"))
1694 {
1695 if (fUpdateRing0)
1696 stamR3Ring0StatsUpdateU(pUVM, "*");
1697
1698 PSTAMDESC pCur = pUVM->stam.s.pHead;
1699 while (pCur)
1700 {
1701 rc = pfnCallback(pCur, pvArg);
1702 if (rc)
1703 break;
1704
1705 /* next */
1706 pCur = pCur->pNext;
1707 }
1708 }
1709
1710 /*
1711 * Single expression pattern.
1712 */
1713 else if (!strchr(pszPat, '|'))
1714 {
1715 if (fUpdateRing0)
1716 stamR3Ring0StatsUpdateU(pUVM, pszPat);
1717
1718 /** @todo This needs to be optimized since the GUI is using this path for the VM info dialog.
1719 * Note that it's doing exact matching. Organizing the samples in a tree would speed up thing
1720 * no end (at least for debug and profile builds). */
1721 for (PSTAMDESC pCur = pUVM->stam.s.pHead; pCur; pCur = pCur->pNext)
1722 if (RTStrSimplePatternMatch(pszPat, pCur->pszName))
1723 {
1724 rc = pfnCallback(pCur, pvArg);
1725 if (rc)
1726 break;
1727 }
1728 }
1729
1730 /*
1731 * Multi expression pattern.
1732 */
1733 else
1734 {
1735 /*
1736 * Split up the pattern first.
1737 */
1738 char *pszCopy;
1739 unsigned cExpressions;
1740 char **papszExpressions = stamR3SplitPattern(pszPat, &cExpressions, &pszCopy);
1741 if (!papszExpressions)
1742 return VERR_NO_MEMORY;
1743
1744 /*
1745 * Perform the enumeration.
1746 */
1747 if (fUpdateRing0)
1748 stamR3Ring0StatsUpdateMultiU(pUVM, papszExpressions, cExpressions);
1749
1750 unsigned iExpression = 0;
1751 for (PSTAMDESC pCur = pUVM->stam.s.pHead; pCur; pCur = pCur->pNext)
1752 if (stamR3MultiMatch(papszExpressions, cExpressions, &iExpression, pCur->pszName))
1753 {
1754 rc = pfnCallback(pCur, pvArg);
1755 if (rc)
1756 break;
1757 }
1758
1759 RTMemTmpFree(papszExpressions);
1760 RTStrFree(pszCopy);
1761 }
1762
1763 return rc;
1764}
1765
1766
1767/**
1768 * Registers the ring-0 statistics.
1769 *
1770 * @param pUVM Pointer to the user mode VM structure.
1771 */
1772static void stamR3Ring0StatsRegisterU(PUVM pUVM)
1773{
1774 /* GVMM */
1775 for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
1776 stamR3RegisterU(pUVM, (uint8_t *)&pUVM->stam.s.GVMMStats + g_aGVMMStats[i].offVar, NULL, NULL,
1777 g_aGVMMStats[i].enmType, STAMVISIBILITY_ALWAYS, g_aGVMMStats[i].pszName,
1778 g_aGVMMStats[i].enmUnit, g_aGVMMStats[i].pszDesc);
1779}
1780
1781
1782/**
1783 * Updates the ring-0 statistics (the copy).
1784 *
1785 * @param pUVM Pointer to the user mode VM structure.
1786 * @param pszPat The pattern.
1787 */
1788static void stamR3Ring0StatsUpdateU(PUVM pUVM, const char *pszPat)
1789{
1790 stamR3Ring0StatsUpdateMultiU(pUVM, &pszPat, 1);
1791}
1792
1793
1794/**
1795 * Updates the ring-0 statistics.
1796 *
1797 * The ring-0 statistics aren't directly addressable from ring-3 and
1798 * must be copied when needed.
1799 *
1800 * @param pUVM Pointer to the user mode VM structure.
1801 * @param pszPat The pattern (for knowing when to skip).
1802 */
1803static void stamR3Ring0StatsUpdateMultiU(PUVM pUVM, const char * const *papszExpressions, unsigned cExpressions)
1804{
1805 PVM pVM = pUVM->pVM;
1806 if (!pVM || !pVM->pSession)
1807 return;
1808
1809 /* GVMM */
1810 bool fUpdate = false;
1811 for (unsigned i = 0; i < RT_ELEMENTS(g_aGVMMStats); i++)
1812 if (stamR3MultiMatch(papszExpressions, cExpressions, NULL, g_aGVMMStats[i].pszName))
1813 {
1814 fUpdate = true;
1815 break;
1816 }
1817 if (fUpdate)
1818 {
1819 GVMMQUERYSTATISTICSSREQ Req;
1820 Req.Hdr.cbReq = sizeof(Req);
1821 Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
1822 Req.pSession = pVM->pSession;
1823 int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, NIL_VMCPUID, VMMR0_DO_GVMM_QUERY_STATISTICS, 0, &Req.Hdr);
1824 if (RT_SUCCESS(rc))
1825 pUVM->stam.s.GVMMStats = Req.Stats;
1826 }
1827}
1828
1829
1830/**
1831 * Get the unit string.
1832 *
1833 * @returns Pointer to read only unit string.
1834 * @param enmUnit The unit.
1835 */
1836VMMR3DECL(const char *) STAMR3GetUnit(STAMUNIT enmUnit)
1837{
1838 switch (enmUnit)
1839 {
1840 case STAMUNIT_NONE: return "";
1841 case STAMUNIT_CALLS: return "calls";
1842 case STAMUNIT_COUNT: return "count";
1843 case STAMUNIT_BYTES: return "bytes";
1844 case STAMUNIT_PAGES: return "pages";
1845 case STAMUNIT_ERRORS: return "errors";
1846 case STAMUNIT_OCCURENCES: return "times";
1847 case STAMUNIT_TICKS: return "ticks";
1848 case STAMUNIT_TICKS_PER_CALL: return "ticks/call";
1849 case STAMUNIT_TICKS_PER_OCCURENCE: return "ticks/time";
1850 case STAMUNIT_GOOD_BAD: return "good:bad";
1851 case STAMUNIT_MEGABYTES: return "megabytes";
1852 case STAMUNIT_KILOBYTES: return "kilobytes";
1853 case STAMUNIT_NS: return "ns";
1854 case STAMUNIT_NS_PER_CALL: return "ns/call";
1855 case STAMUNIT_NS_PER_OCCURENCE: return "ns/time";
1856 case STAMUNIT_PCT: return "%";
1857
1858 default:
1859 AssertMsgFailed(("Unknown unit %d\n", enmUnit));
1860 return "(?unit?)";
1861 }
1862}
1863
1864#ifdef VBOX_WITH_DEBUGGER
1865
1866/**
1867 * The '.stats' command.
1868 *
1869 * @returns VBox status.
1870 * @param pCmd Pointer to the command descriptor (as registered).
1871 * @param pCmdHlp Pointer to command helper functions.
1872 * @param pVM Pointer to the current VM (if any).
1873 * @param paArgs Pointer to (readonly) array of arguments.
1874 * @param cArgs Number of arguments in the array.
1875 */
1876static DECLCALLBACK(int) stamR3CmdStats(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1877{
1878 /*
1879 * Validate input.
1880 */
1881 if (!pVM)
1882 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
1883 PUVM pUVM = pVM->pUVM;
1884 if (!pUVM->stam.s.pHead)
1885 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no statistics present.\n");
1886
1887 /*
1888 * Do the printing.
1889 */
1890 STAMR3PRINTONEARGS Args;
1891 Args.pVM = pVM;
1892 Args.pvArg = pCmdHlp;
1893 Args.pfnPrintf = stamR3EnumDbgfPrintf;
1894
1895 STAM_LOCK_RD(pUVM);
1896 int rc = stamR3EnumU(pUVM, cArgs ? paArgs[0].u.pszString : NULL, true /* fUpdateRing0 */, stamR3PrintOne, &Args);
1897 STAM_UNLOCK_RD(pUVM);
1898
1899 return rc;
1900}
1901
1902
1903/**
1904 * Display one sample in the debugger.
1905 *
1906 * @param pArgs Pointer to the print one argument structure.
1907 * @param pszFormat Format string.
1908 * @param ... Format arguments.
1909 */
1910static DECLCALLBACK(void) stamR3EnumDbgfPrintf(PSTAMR3PRINTONEARGS pArgs, const char *pszFormat, ...)
1911{
1912 PDBGCCMDHLP pCmdHlp = (PDBGCCMDHLP)pArgs->pvArg;
1913
1914 va_list va;
1915 va_start(va, pszFormat);
1916 pCmdHlp->pfnPrintfV(pCmdHlp, NULL, pszFormat, va);
1917 va_end(va);
1918 NOREF(pArgs);
1919}
1920
1921
1922/**
1923 * The '.statsreset' command.
1924 *
1925 * @returns VBox status.
1926 * @param pCmd Pointer to the command descriptor (as registered).
1927 * @param pCmdHlp Pointer to command helper functions.
1928 * @param pVM Pointer to the current VM (if any).
1929 * @param paArgs Pointer to (readonly) array of arguments.
1930 * @param cArgs Number of arguments in the array.
1931 */
1932static DECLCALLBACK(int) stamR3CmdStatsReset(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1933{
1934 /*
1935 * Validate input.
1936 */
1937 if (!pVM)
1938 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
1939 PUVM pUVM = pVM->pUVM;
1940 if (!pUVM->stam.s.pHead)
1941 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no statistics present.\n");
1942
1943 /*
1944 * Execute reset.
1945 */
1946 int rc = STAMR3ResetU(pUVM, cArgs ? paArgs[0].u.pszString : NULL);
1947 if (RT_SUCCESS(rc))
1948 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "info: Statistics reset.\n");
1949
1950 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Restting statistics.\n");
1951}
1952
1953#endif /* VBOX_WITH_DEBUGGER */
1954
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