log.h@ 3636

Last change on this file since 3636 was 3636, checked in by vboxsync, 17 years ago
AMD64 -> RT_ARCH_AMD64; X86 -> RT_ARCH_X86; [OS] (except LINUX) -> RT_OS_[OS].
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1	/** @file
2	* innotek Portable Runtime - Logging.
3	*/
4
5	/*
6	* Copyright (C) 2006-2007 innotek GmbH
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License as published by the Free Software Foundation,
12	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
13	* distribution. VirtualBox OSE is distributed in the hope that it will
14	* be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* If you received this file as part of a commercial VirtualBox
17	* distribution, then only the terms of your commercial VirtualBox
18	* license agreement apply instead of the previous paragraph.
19	*/
20
21	#ifndef ___iprt_log_h
22	#define ___iprt_log_h
23
24	#include <iprt/cdefs.h>
25	#include <iprt/types.h>
26	#include <iprt/stdarg.h>
27
28	__BEGIN_DECLS
29
30	/** @defgroup grp_rt_log RTLog - Logging
31	* @ingroup grp_rt
32	* @{
33	*/
34
35	/**
36	* innotek Portable Runtime Logging Groups.
37	* (Remember to update RT_LOGGROUP_NAMES!)
38	*
39	* @remark It should be pretty obvious, but just to have
40	* mentioned it, the values are sorted alphabetically (using the
41	* english alphabet) except for _DEFAULT which is always first.
42	*
43	* If anyone might be wondering what the alphabet looks like:
44	* a b c d e f g h i j k l m n o p q r s t u v w x y z
45	*/
46	typedef enum RTLOGGROUP
47	{
48	/** Default logging group. */
49	RTLOGGROUP_DEFAULT,
50	RTLOGGROUP_DIR,
51	RTLOGGROUP_FILE,
52	RTLOGGROUP_FS,
53	RTLOGGROUP_LDR,
54	RTLOGGROUP_PATH,
55	RTLOGGROUP_PROCESS,
56	RTLOGGROUP_THREAD,
57	RTLOGGROUP_TIME,
58	RTLOGGROUP_TIMER,
59	RTLOGGROUP_ZIP = 31,
60	RTLOGGROUP_FIRST_USER = 32
61	} RTLOGGROUP;
62
63	/** @def RT_LOGGROUP_NAMES
64	* innotek Portable Runtime Logging group names.
65	*
66	* Must correspond 100% to RTLOGGROUP!
67	* Don't forget commas!
68	*
69	* @remark It should be pretty obvious, but just to have
70	* mentioned it, the values are sorted alphabetically (using the
71	* english alphabet) except for _DEFAULT which is always first.
72	*
73	* If anyone might be wondering what the alphabet looks like:
74	* a b c d e f g h i j k l m n o p q r s t u v w x y z
75	*/
76	#define RT_LOGGROUP_NAMES \
77	"DEFAULT", \
78	"RT_DIR", \
79	"RT_FILE", \
80	"RT_FS", \
81	"RT_LDR", \
82	"RT_PATH", \
83	"RT_PROCESS", \
84	"RT_TIME", \
85	"RT_TIMER", \
86	"RT_THREAD", \
87	"RT_10", \
88	"RT_11", \
89	"RT_12", \
90	"RT_13", \
91	"RT_14", \
92	"RT_15", \
93	"RT_16", \
94	"RT_17", \
95	"RT_18", \
96	"RT_19", \
97	"RT_20", \
98	"RT_21", \
99	"RT_22", \
100	"RT_23", \
101	"RT_24", \
102	"RT_25", \
103	"RT_26", \
104	"RT_27", \
105	"RT_28", \
106	"RT_29", \
107	"RT_30", \
108	"RT_ZIP" \
109
110
111	/** @def LOG_GROUP
112	* Active logging group.
113	*/
114	#ifndef LOG_GROUP
115	# define LOG_GROUP RTLOGGROUP_DEFAULT
116	#endif
117
118	/** @def LOG_INSTANCE
119	* Active logging instance.
120	*/
121	#ifndef LOG_INSTANCE
122	# define LOG_INSTANCE NULL
123	#endif
124
125	/** @def LOG_REL_INSTANCE
126	* Active release logging instance.
127	*/
128	#ifndef LOG_REL_INSTANCE
129	# define LOG_REL_INSTANCE NULL
130	#endif
131
132
133	/** Logger structure. */
134	#ifdef IN_GC
135	typedef struct RTLOGGERGC RTLOGGER;
136	#else
137	typedef struct RTLOGGER RTLOGGER;
138	#endif
139	/** Pointer to logger structure. */
140	typedef RTLOGGER *PRTLOGGER;
141	/** Pointer to const logger structure. */
142	typedef const RTLOGGER *PCRTLOGGER;
143
144
145	/** Guest context logger structure. */
146	typedef struct RTLOGGERGC RTLOGGERGC;
147	/** Pointer to guest context logger structure. */
148	typedef RTLOGGERGC *PRTLOGGERGC;
149	/** Pointer to const guest context logger structure. */
150	typedef const RTLOGGERGC *PCRTLOGGERGC;
151
152
153	/**
154	* Logger function.
155	*
156	* @param pszFormat Format string.
157	* @param ... Optional arguments as specified in the format string.
158	*/
159	typedef DECLCALLBACK(void) FNRTLOGGER(const char *pszFormat, ...);
160	/** Pointer to logger function. */
161	typedef FNRTLOGGER *PFNRTLOGGER;
162
163	/**
164	* Flush function.
165	*
166	* @param pLogger Pointer to the logger instance which is to be flushed.
167	*/
168	typedef DECLCALLBACK(void) FNRTLOGFLUSH(PRTLOGGER pLogger);
169	/** Pointer to logger function. */
170	typedef FNRTLOGFLUSH *PFNRTLOGFLUSH;
171
172	/**
173	* Flush function.
174	*
175	* @param pLogger Pointer to the logger instance which is to be flushed.
176	*/
177	typedef DECLCALLBACK(void) FNRTLOGFLUSHGC(PRTLOGGERGC pLogger);
178	/** Pointer to logger function. */
179	typedef GCPTRTYPE(FNRTLOGFLUSHGC *) PFNRTLOGFLUSHGC;
180
181
182	/**
183	* Logger instance structure for GC.
184	*/
185	struct RTLOGGERGC
186	{
187	/** Pointer to temporary scratch buffer.
188	* This is used to format the log messages. */
189	char achScratch[16384];
190	/** Current scratch buffer position. */
191	RTUINT offScratch;
192	/** This is set if a prefix is pending. */
193	RTUINT fPendingPrefix;
194	/** Pointer to the logger function.
195	* This is actually pointer to a wrapper which will push a pointer to the
196	* instance pointer onto the stack before jumping to the real logger function.
197	* A very unfortunate hack to work around the missing variadic macro support in C++. */
198	GCPTRTYPE(PFNRTLOGGER) pfnLogger;
199	/** Pointer to the flush function. */
200	PFNRTLOGFLUSHGC pfnFlush;
201	/** Magic number (RTLOGGERGC_MAGIC). */
202	uint32_t u32Magic;
203	/** Logger instance flags - RTLOGFLAGS. */
204	RTUINT fFlags;
205	/** Number of groups in the afGroups member. */
206	RTUINT cGroups;
207	/** Group flags array - RTLOGGRPFLAGS.
208	* This member have variable length and may extend way beyond
209	* the declared size of 1 entry. */
210	RTUINT afGroups[1];
211	};
212
213	/** RTLOGGERGC::u32Magic value. (John Rogers Searle) */
214	#define RTLOGGERGC_MAGIC 0x19320731
215
216
217
218	#ifndef IN_GC
219	/**
220	* Logger instance structure.
221	*/
222	struct RTLOGGER
223	{
224	/** Pointer to temporary scratch buffer.
225	* This is used to format the log messages. */
226	char achScratch[16384];
227	/** Current scratch buffer position. */
228	RTUINT offScratch;
229	/** This is set if a prefix is pending. */
230	RTUINT fPendingPrefix;
231	/** Pointer to the logger function.
232	* This is actually pointer to a wrapper which will push a pointer to the
233	* instance pointer onto the stack before jumping to the real logger function.
234	* A very unfortunate hack to work around the missing variadic macro support in C++.
235	* (The memory is (not R0) allocated using RTMemExecAlloc().) */
236	PFNRTLOGGER pfnLogger;
237	/** Pointer to the flush function. */
238	PFNRTLOGFLUSH pfnFlush;
239	/** Mutex. */
240	RTSEMFASTMUTEX MutexSem;
241	/** Magic number. */
242	uint32_t u32Magic;
243	/** Logger instance flags - RTLOGFLAGS. */
244	RTUINT fFlags;
245	/** Destination flags - RTLOGDEST. */
246	RTUINT fDestFlags;
247	/** Handle to log file (if open). */
248	RTFILE File;
249	/** Pointer to filename.
250	* (The memory is allocated in the smae block as RTLOGGER.) */
251	char *pszFilename;
252	/** Pointer to the group name array.
253	* (The data is readonly and provided by the user.) */
254	const char * const *papszGroups;
255	/** The max number of groups that there is room for in afGroups and papszGroups.
256	* Used by RTLogCopyGroupAndFlags(). */
257	RTUINT cMaxGroups;
258	/** Number of groups in the afGroups and papszGroups members. */
259	RTUINT cGroups;
260	/** Group flags array - RTLOGGRPFLAGS.
261	* This member have variable length and may extend way beyond
262	* the declared size of 1 entry. */
263	RTUINT afGroups[1];
264	};
265
266	/** RTLOGGER::u32Magic value. (Avram Noam Chomsky) */
267	#define RTLOGGER_MAGIC 0x19281207
268
269	#endif
270
271
272	/**
273	* Logger flags.
274	*/
275	typedef enum RTLOGFLAGS
276	{
277	/** The logger instance is disabled for normal output. */
278	RTLOGFLAGS_DISABLED = 0x00000001,
279	/** The logger instance is using buffered output. */
280	RTLOGFLAGS_BUFFERED = 0x00000002,
281	/** The logger instance expands LF to CR/LF. */
282	RTLOGFLAGS_USECRLF = 0x00000010,
283	/** Show relative timestamps with PREFIX_TSC and PREFIX_TS */
284	RTLOGFLAGS_REL_TS = 0x00010000,
285	/** Show decimal timestamps with PREFIX_TSC and PREFIX_TS */
286	RTLOGFLAGS_DECIMAL_TS = 0x00020000,
287	/** New lines should be prefixed with group flag number causing the output. */
288	RTLOGFLAGS_PREFIX_FLAG_NO = 0x00040000,
289	/** New lines should be prefixed with group flag name causing the output. */
290	RTLOGFLAGS_PREFIX_FLAG = 0x00080000,
291	/** New lines should be prefixed with group number. */
292	RTLOGFLAGS_PREFIX_GROUP_NO = 0x00100000,
293	/** New lines should be prefixed with group name. */
294	RTLOGFLAGS_PREFIX_GROUP = 0x00200000,
295	/** New lines should be prefixed with the native thread id. */
296	RTLOGFLAGS_PREFIX_TID = 0x00400000,
297	/** New lines should be prefixed with thread name. */
298	RTLOGFLAGS_PREFIX_THREAD = 0x00800000,
299	/** New lines should be prefixed with formatted timestamp since program start. */
300	RTLOGFLAGS_PREFIX_TIME_PROG = 0x04000000,
301	/** New lines should be prefixed with formatted timestamp (UCT). */
302	RTLOGFLAGS_PREFIX_TIME = 0x08000000,
303	/** New lines should be prefixed with milliseconds since program start. */
304	RTLOGFLAGS_PREFIX_MS_PROG = 0x10000000,
305	/** New lines should be prefixed with timestamp. */
306	RTLOGFLAGS_PREFIX_TSC = 0x20000000,
307	/** New lines should be prefixed with timestamp. */
308	RTLOGFLAGS_PREFIX_TS = 0x40000000,
309	/** The prefix mask. */
310	RTLOGFLAGS_PREFIX_MASK = 0x7cff0000
311	} RTLOGFLAGS;
312
313	/**
314	* Logger per group flags.
315	*/
316	typedef enum RTLOGGRPFLAGS
317	{
318	/** Enabled. */
319	RTLOGGRPFLAGS_ENABLED = 0x00000001,
320	/** Level 1 logging. */
321	RTLOGGRPFLAGS_LEVEL_1 = 0x00000002,
322	/** Level 2 logging. */
323	RTLOGGRPFLAGS_LEVEL_2 = 0x00000004,
324	/** Level 3 logging. */
325	RTLOGGRPFLAGS_LEVEL_3 = 0x00000008,
326	/** Level 4 logging. */
327	RTLOGGRPFLAGS_LEVEL_4 = 0x00000010,
328	/** Level 5 logging. */
329	RTLOGGRPFLAGS_LEVEL_5 = 0x00000020,
330	/** Level 6 logging. */
331	RTLOGGRPFLAGS_LEVEL_6 = 0x00000040,
332	/** Flow logging. */
333	RTLOGGRPFLAGS_FLOW = 0x00000080,
334
335	/** Lelik logging. */
336	RTLOGGRPFLAGS_LELIK = 0x00000100,
337	/** Michael logging. */
338	RTLOGGRPFLAGS_MICHAEL = 0x00000200,
339	/** dmik logging. */
340	RTLOGGRPFLAGS_DMIK = 0x00000400,
341	/** sunlover logging. */
342	RTLOGGRPFLAGS_SUNLOVER = 0x00000800,
343	/** Achim logging. */
344	RTLOGGRPFLAGS_ACHIM = 0x00001000,
345	/** Sander logging. */
346	RTLOGGRPFLAGS_SANDER = 0x00002000,
347	/** Klaus logging. */
348	RTLOGGRPFLAGS_KLAUS = 0x00004000,
349	/** Frank logging. */
350	RTLOGGRPFLAGS_FRANK = 0x00008000,
351	/** bird logging. */
352	RTLOGGRPFLAGS_BIRD = 0x00010000,
353	/** NoName logging. */
354	RTLOGGRPFLAGS_NONAME = 0x00020000
355	} RTLOGGRPFLAGS;
356
357	/**
358	* Logger destination type.
359	*/
360	typedef enum RTLOGDEST
361	{
362	/** Log to file. */
363	RTLOGDEST_FILE = 0x00000001,
364	/** Log to stdout. */
365	RTLOGDEST_STDOUT = 0x00000002,
366	/** Log to stderr. */
367	RTLOGDEST_STDERR = 0x00000004,
368	/** Log to debugger (win32 only). */
369	RTLOGDEST_DEBUGGER = 0x00000008,
370	/** Log to com port. */
371	RTLOGDEST_COM = 0x00000010,
372	/** Just a dummy flag to be used when no other flag applies. */
373	RTLOGDEST_DUMMY = 0x20000000,
374	/** Log to a user defined output stream. */
375	RTLOGDEST_USER = 0x40000000
376	} RTLOGDEST;
377
378
379	RTDECL(void) RTLogPrintfEx(void pvInstance, unsigned fFlags, unsigned iGroup, const char pszFormat, ...);
380
381
382	/*
383	* Determin whether logging is enabled and forcefully normalize the indicators.
384	*/
385	#if (defined(DEBUG) \|\| defined(LOG_ENABLED)) && !defined(LOG_DISABLED)
386	# undef LOG_DISABLED
387	# undef LOG_ENABLED
388	# define LOG_ENABLED
389	#else
390	# undef LOG_ENABLED
391	# undef LOG_DISABLED
392	# define LOG_DISABLED
393	#endif
394
395
396	/** @def LogIt
397	* Write to specific logger if group enabled.
398	*/
399	#ifdef LOG_ENABLED
400	# if defined(RT_ARCH_AMD64) \|\| defined(LOG_USE_C99)
401	# define _LogRemoveParentheseis(...) __VA_ARGS__
402	# define _LogIt(pvInst, fFlags, iGroup, ...) RTLogLoggerEx((PRTLOGGER)pvInst, fFlags, iGroup, __VA_ARGS__)
403	# define LogIt(pvInst, fFlags, iGroup, fmtargs) _LogIt(pvInst, fFlags, iGroup, _LogRemoveParentheseis fmtargs)
404	# else
405	# define LogIt(pvInst, fFlags, iGroup, fmtargs) \
406	do \
407	{ \
408	register PRTLOGGER LogIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogDefaultInstance(); \
409	if (LogIt_pLogger) \
410	{ \
411	register unsigned LogIt_fFlags = LogIt_pLogger->afGroups[(unsigned)(iGroup) < LogIt_pLogger->cGroups ? (unsigned)(iGroup) : 0]; \
412	if ((LogIt_fFlags & ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) == ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) \
413	LogIt_pLogger->pfnLogger fmtargs; \
414	} \
415	} while (0)
416	# endif
417	#else
418	# define LogIt(pvInst, fFlags, iGroup, fmtargs) do { } while (0)
419	#endif
420
421
422	/** @def Log
423	* Level 1 logging.
424	*/
425	#define Log(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, a)
426
427	/** @def Log2
428	* Level 2 logging.
429	*/
430	#define Log2(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP, a)
431
432	/** @def Log3
433	* Level 3 logging.
434	*/
435	#define Log3(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP, a)
436
437	/** @def Log4
438	* Level 4 logging.
439	*/
440	#define Log4(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP, a)
441
442	/** @def Log5
443	* Level 5 logging.
444	*/
445	#define Log5(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP, a)
446
447	/** @def Log6
448	* Level 6 logging.
449	*/
450	#define Log6(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP, a)
451
452	/** @def LogFlow
453	* Logging of execution flow.
454	*/
455	#define LogFlow(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, a)
456
457	/** @def LogLelik
458	* lelik logging.
459	*/
460	#define LogLelik(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LELIK, LOG_GROUP, a)
461
462
463	/** @def LogMichael
464	* michael logging.
465	*/
466	#define LogMichael(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_MICHAEL, LOG_GROUP, a)
467
468	/** @def LogDmik
469	* dmik logging.
470	*/
471	#define LogDmik(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_DMIK, LOG_GROUP, a)
472
473	/** @def LogSunlover
474	* sunlover logging.
475	*/
476	#define LogSunlover(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_SUNLOVER, LOG_GROUP, a)
477
478	/** @def LogAchim
479	* Achim logging.
480	*/
481	#define LogAchim(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_ACHIM, LOG_GROUP, a)
482
483	/** @def LogSander
484	* Sander logging.
485	*/
486	#define LogSander(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_SANDER, LOG_GROUP, a)
487
488	/** @def LogKlaus
489	* klaus logging.
490	*/
491	#define LogKlaus(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_KLAUS, LOG_GROUP, a)
492
493	/** @def LogFrank
494	* frank logging.
495	*/
496	#define LogFrank(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FRANK, LOG_GROUP, a)
497
498	/** @def LogBird
499	* bird logging.
500	*/
501	#define LogBird(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_BIRD, LOG_GROUP, a)
502
503	/** @def LogNoName
504	* NoName logging.
505	*/
506	#define LogNoName(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_NONAME, LOG_GROUP, a)
507
508
509	/** @def LogWarning
510	* The same as Log(), but prepents a <tt>"WARNING! "</tt> string to the message.
511	* @param m custom log message in format <tt>("string\n" [, args])</tt>
512	* @todo use a Log macro with a variable argument list (requires MSVC8) to
513	* join two separate Log* calls and make this op atomic
514	*/
515	#define LogWarning(m) \
516	do { Log(("WARNING! ")); Log(m); } while (0)
517
518	/** @def LogTrace
519	* Macro to trace the execution flow: logs the file name, line number and
520	* function name. Can be easily searched for in log files using the
521	* ">>>>>" pattern (prepended to the beginning of each line).
522	*/
523	#define LogTrace() \
524	LogFlow((">>>>> %s (%d): %s\n", __FILE__, __LINE__, __PRETTY_FUNCTION__))
525
526	/** @def LogTraceMsg
527	* The same as LogTrace but logs a custom log message right after the trace line.
528	* @param m custom log message in format <tt>("string\n" [, args])</tt>
529	* @todo use a Log macro with a variable argument list (requires MSVC8) to
530	* join two separate Log* calls and make this op atomic
531	*/
532	#define LogTraceMsg(m) \
533	do { LogTrace(); LogFlow(m); } while (0)
534
535	/** @def LogFlowFunc
536	* Macro to log the execution flow inside C/C++ functions.
537	* Prepends the given log message with the function name followed by a semicolon
538	* and space.
539	* @param m log message in format <tt>("string\n" [, args])</tt>
540	* @todo use a Log macro with a variable argument list (requires MSVC8) to
541	* join two separate Log* calls and make this op atomic
542	*/
543	#define LogFlowFunc(m) \
544	do { LogFlow(("%s: ", __PRETTY_FUNCTION__)); LogFlow(m); } while (0)
545
546	/** @def LogWarningFunc
547	* The same as LogWarning(), but prepents the log message with the function name.
548	* @param m log message in format <tt>("string\n" [, args])</tt>
549	* @todo use a Log macro with a variable argument list (requires MSVC8) to
550	* join two separate Log* calls and make this op atomic
551	*/
552	#define LogWarningFunc(m) \
553	do { Log(("%s: WARNING! ", __PRETTY_FUNCTION__)); Log(m); } while (0)
554
555	/** @def LogFlowThisFunc
556	* The same as LogFlowFunc but for class functions (methods): the resulting log
557	* line is additionally perpended with a hex value of \|this\| pointer.
558	* @param m log message in format <tt>("string\n" [, args])</tt>
559	* @todo use a Log macro with a variable argument list (requires MSVC8) to
560	* join two separate Log* calls and make this op atomic
561	*/
562	#define LogFlowThisFunc(m) \
563	do { LogFlow(("{%p} %s: ", this, __PRETTY_FUNCTION__)); LogFlow(m); } while (0)
564
565	/** @def LogWarningThisFunc
566	* The same as LogWarningFunc() but for class functions (methods): the resulting
567	* log line is additionally perpended with a hex value of \|this\| pointer.
568	* @param m log message in format <tt>("string\n" [, args])</tt>
569	* @todo use a Log macro with a variable argument list (requires MSVC8) to
570	* join two separate Log* calls and make this op atomic
571	*/
572	#define LogWarningThisFunc(m) \
573	do { Log(("{%p} %s: WARNING! ", this, __PRETTY_FUNCTION__)); Log(m); } while (0)
574
575	/** Shortcut to \|LogFlowFunc ("ENTER\n")\|, marks the beginnig of the function */
576	#define LogFlowFuncEnter() LogFlowFunc(("ENTER\n"))
577
578	/** Shortcut to \|LogFlowFunc ("LEAVE\n")\|, marks the end of the function */
579	#define LogFlowFuncLeave() LogFlowFunc(("LEAVE\n"))
580
581	/** Shortcut to \|LogFlowThisFunc ("ENTER\n")\|, marks the beginnig of the function */
582	#define LogFlowThisFuncEnter() LogFlowThisFunc(("ENTER\n"))
583
584	/** Shortcut to \|LogFlowThisFunc ("LEAVE\n")\|, marks the end of the function */
585	#define LogFlowThisFuncLeave() LogFlowThisFunc(("LEAVE\n"))
586
587	/** @def LogObjRefCnt
588	* Helper macro to print the current reference count of the given COM object
589	* to the log file.
590	* @param obj object in question (must be a pointer to an IUnknown subclass
591	* or simply define COM-style AddRef() and Release() methods)
592	* @note Use it only for temporary debugging. It leaves dummy code even if
593	* logging is disabled.
594	*/
595	#define LogObjRefCnt(obj) \
596	do { \
597	int refc = (obj)->AddRef(); -- refc; \
598	LogFlow((#obj "{%p}.refCnt=%d\n", (obj), refc)); \
599	(obj)->Release(); \
600	} while (0)
601
602
603	/** @def LogIsItEnabled
604	* Checks whether the specified logging group is enabled or not.
605	*/
606	#ifdef LOG_ENABLED
607	# define LogIsItEnabled(pvInst, fFlags, iGroup) \
608	LogIsItEnabledInternal((pvInst), (unsigned)(iGroup), (unsigned)(fFlags))
609	#else
610	# define LogIsItEnabled(pvInst, fFlags, iGroup) (false)
611	#endif
612
613	/** @def LogIsEnabled
614	* Checks whether level 1 logging is enabled.
615	*/
616	#define LogIsEnabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP)
617
618	/** @def LogIs2Enabled
619	* Checks whether level 2 logging is enabled.
620	*/
621	#define LogIs2Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP)
622
623	/** @def LogIs3Enabled
624	* Checks whether level 3 logging is enabled.
625	*/
626	#define LogIs3Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP)
627
628	/** @def LogIs4Enabled
629	* Checks whether level 4 logging is enabled.
630	*/
631	#define LogIs4Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP)
632
633	/** @def LogIs5Enabled
634	* Checks whether level 5 logging is enabled.
635	*/
636	#define LogIs5Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP)
637
638	/** @def LogIs6Enabled
639	* Checks whether level 6 logging is enabled.
640	*/
641	#define LogIs6Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP)
642
643	/** @def LogIsFlowEnabled
644	* Checks whether execution flow logging is enabled.
645	*/
646	#define LogIsFlowEnabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP)
647
648
649	#ifdef __DOXYGEN__
650	# define LOG_DISABLED
651	# define LOG_ENABLED
652	# define LOG_ENABLE_FLOW
653	#endif
654
655	/** @def LOG_DISABLED
656	* Use this compile time define to disable all logging macros. It can
657	* be overriden for each of the logging macros by the LOG_ENABLE*
658	* compile time defines.
659	*/
660
661	/** @def LOG_ENABLED
662	* Use this compile time define to enable logging when not in debug mode
663	* or LOG_DISABLED is set.
664	* This will enabled Log() only.
665	*/
666
667	/** @def LOG_ENABLE_FLOW
668	* Use this compile time define to enable flow logging when not in
669	* debug mode or LOG_DISABLED is defined.
670	* This will enable LogFlow() only.
671	*/
672
673
674
675	/** @name Release Logging
676	* @{
677	*/
678
679	/** @def LogIt
680	* Write to specific logger if group enabled.
681	*/
682	#if defined(RT_ARCH_AMD64) \|\| defined(LOG_USE_C99)
683	# define _LogRelRemoveParentheseis(...) __VA_ARGS__
684	# define _LogRelIt(pvInst, fFlags, iGroup, ...) RTLogLoggerEx((PRTLOGGER)pvInst, fFlags, iGroup, __VA_ARGS__)
685	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) \
686	do \
687	{ \
688	PRTLOGGER LogRelIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogRelDefaultInstance(); \
689	if (LogRelIt_pLogger) \
690	_LogRelIt(LogRelIt_pLogger, fFlags, iGroup, _LogRelRemoveParentheseis fmtargs); \
691	LogIt(LOG_INSTANCE, fFlags, iGroup, fmtargs); \
692	} while (0)
693	#else
694	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) \
695	do \
696	{ \
697	PRTLOGGER LogRelIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogRelDefaultInstance(); \
698	if (LogRelIt_pLogger) \
699	{ \
700	unsigned LogIt_fFlags = LogRelIt_pLogger->afGroups[(unsigned)(iGroup) < LogRelIt_pLogger->cGroups ? (unsigned)(iGroup) : 0]; \
701	if ((LogIt_fFlags & ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) == ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) \
702	LogRelIt_pLogger->pfnLogger fmtargs; \
703	} \
704	LogIt(LOG_INSTANCE, fFlags, iGroup, fmtargs); \
705	} while (0)
706	#endif
707
708
709	/** @def LogRel
710	* Level 1 logging.
711	*/
712	#define LogRel(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, a)
713
714	/** @def LogRel2
715	* Level 2 logging.
716	*/
717	#define LogRel2(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP, a)
718
719	/** @def LogRel3
720	* Level 3 logging.
721	*/
722	#define LogRel3(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP, a)
723
724	/** @def LogRel4
725	* Level 4 logging.
726	*/
727	#define LogRel4(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP, a)
728
729	/** @def LogRel5
730	* Level 5 logging.
731	*/
732	#define LogRel5(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP, a)
733
734	/** @def LogRel6
735	* Level 6 logging.
736	*/
737	#define LogRel6(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP, a)
738
739	/** @def LogRelFlow
740	* Logging of execution flow.
741	*/
742	#define LogRelFlow(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, a)
743
744	/** @def LogRelLelik
745	* lelik logging.
746	*/
747	#define LogRelLelik(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LELIK, LOG_GROUP, a)
748
749	/** @def LogRelMichael
750	* michael logging.
751	*/
752	#define LogRelMichael(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_MICHAEL, LOG_GROUP, a)
753
754	/** @def LogRelDmik
755	* dmik logging.
756	*/
757	#define LogRelDmik(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_DMIK, LOG_GROUP, a)
758
759	/** @def LogRelSunlover
760	* sunlover logging.
761	*/
762	#define LogRelSunlover(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_SUNLOVER, LOG_GROUP, a)
763
764	/** @def LogRelAchim
765	* Achim logging.
766	*/
767	#define LogRelAchim(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_ACHIM, LOG_GROUP, a)
768
769	/** @def LogRelSander
770	* Sander logging.
771	*/
772	#define LogRelSander(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_SANDER, LOG_GROUP, a)
773
774	/** @def LogRelKlaus
775	* klaus logging.
776	*/
777	#define LogRelKlaus(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_KLAUS, LOG_GROUP, a)
778
779	/** @def LogRelFrank
780	* frank logging.
781	*/
782	#define LogRelFrank(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FRANK, LOG_GROUP, a)
783
784	/** @def LogRelBird
785	* bird logging.
786	*/
787	#define LogRelBird(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_BIRD, LOG_GROUP, a)
788
789	/** @def LogRelNoName
790	* NoName logging.
791	*/
792	#define LogRelNoName(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_NONAME, LOG_GROUP, a)
793
794
795	/** @def LogRelIsItEnabled
796	* Checks whether the specified logging group is enabled or not.
797	*/
798	#define LogRelIsItEnabled(pvInst, fFlags, iGroup) \
799	LogRelIsItEnabledInternal((pvInst), (unsigned)(iGroup), (unsigned)(fFlags))
800
801	/** @def LogRelIsEnabled
802	* Checks whether level 1 logging is enabled.
803	*/
804	#define LogRelIsEnabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP)
805
806	/** @def LogRelIs2Enabled
807	* Checks whether level 2 logging is enabled.
808	*/
809	#define LogRelIs2Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP)
810
811	/** @def LogRelIs3Enabled
812	* Checks whether level 3 logging is enabled.
813	*/
814	#define LogRelIs3Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP)
815
816	/** @def LogRelIs4Enabled
817	* Checks whether level 4 logging is enabled.
818	*/
819	#define LogRelIs4Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP)
820
821	/** @def LogRelIs5Enabled
822	* Checks whether level 5 logging is enabled.
823	*/
824	#define LogRelIs5Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP)
825
826	/** @def LogRelIs6Enabled
827	* Checks whether level 6 logging is enabled.
828	*/
829	#define LogRelIs6Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP)
830
831	/** @def LogRelIsFlowEnabled
832	* Checks whether execution flow logging is enabled.
833	*/
834	#define LogRelIsFlowEnabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP)
835
836
837	#ifndef IN_GC
838	/**
839	* Sets the default release logger instance.
840	*
841	* @returns The old default instance.
842	* @param pLogger The new default release logger instance.
843	*/
844	RTDECL(PRTLOGGER) RTLogRelSetDefaultInstance(PRTLOGGER pLogger);
845	#endif /* !IN_GC */
846
847	/**
848	* Gets the default release logger instance.
849	*
850	* @returns Pointer to default release logger instance.
851	* @returns NULL if no default release logger instance available.
852	*/
853	RTDECL(PRTLOGGER) RTLogRelDefaultInstance(void);
854
855	/** Internal worker function.
856	* Don't call directly, use the LogRelIsItEnabled macro!
857	*/
858	DECLINLINE(bool) LogRelIsItEnabledInternal(void *pvInst, unsigned iGroup, unsigned fFlags)
859	{
860	register PRTLOGGER pLogger = (PRTLOGGER)pvInst ? (PRTLOGGER)pvInst : RTLogRelDefaultInstance();
861	if (pLogger)
862	{
863	register unsigned fGrpFlags = pLogger->afGroups[(unsigned)iGroup < pLogger->cGroups ? (unsigned)iGroup : 0];
864	if ((fGrpFlags & (fFlags \| RTLOGGRPFLAGS_ENABLED)) == (fFlags \| RTLOGGRPFLAGS_ENABLED))
865	return true;
866	}
867	return false;
868	}
869
870	/**
871	* Write to a logger instance, defaulting to the release one.
872	*
873	* This function will check whether the instance, group and flags makes up a
874	* logging kind which is currently enabled before writing anything to the log.
875	*
876	* @param pLogger Pointer to logger instance.
877	* @param fFlags The logging flags.
878	* @param iGroup The group.
879	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
880	* only for internal usage!
881	* @param pszFormat Format string.
882	* @param ... Format arguments.
883	* @remark This is a worker function for LogRelIt.
884	*/
885	RTDECL(void) RTLogRelLogger(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, ...);
886
887	/**
888	* Write to a logger instance, defaulting to the release one.
889	*
890	* This function will check whether the instance, group and flags makes up a
891	* logging kind which is currently enabled before writing anything to the log.
892	*
893	* @param pLogger Pointer to logger instance. If NULL the default release instance is attempted.
894	* @param fFlags The logging flags.
895	* @param iGroup The group.
896	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
897	* only for internal usage!
898	* @param pszFormat Format string.
899	* @param args Format arguments.
900	*/
901	RTDECL(void) RTLogRelLoggerV(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
902
903	/**
904	* printf like function for writing to the default release log.
905	*
906	* @param pszFormat Printf like format string.
907	* @param ... Optional arguments as specified in pszFormat.
908	*
909	* @remark The API doesn't support formatting of floating point numbers at the moment.
910	*/
911	RTDECL(void) RTLogRelPrintf(const char *pszFormat, ...);
912
913	/**
914	* vprintf like function for writing to the default release log.
915	*
916	* @param pszFormat Printf like format string.
917	* @param args Optional arguments as specified in pszFormat.
918	*
919	* @remark The API doesn't support formatting of floating point numbers at the moment.
920	*/
921	RTDECL(void) RTLogRelPrintfV(const char *pszFormat, va_list args);
922
923
924	/** @} */
925
926
927
928	/** @name COM port logging
929	* {
930	*/
931
932	#ifdef __DOXYGEN__
933	# define LOG_TO_COM
934	# define LOG_NO_COM
935	#endif
936
937	/** @def LOG_TO_COM
938	* Redirects the normal loging macros to the serial versions.
939	*/
940
941	/** @def LOG_NO_COM
942	* Disables all LogCom* macros.
943	*/
944
945	/** @def LogCom
946	* Generic logging to serial port.
947	*/
948	#if defined(LOG_ENABLED) && !defined(LOG_NO_COM)
949	# define LogCom(a) RTLogComPrintf a
950	#else
951	# define LogCom(a) do { } while (0)
952	#endif
953
954	/** @def LogComFlow
955	* Logging to serial port of execution flow.
956	*/
957	#if defined(LOG_ENABLED) && defined(LOG_ENABLE_FLOW) && !defined(LOG_NO_COM)
958	# define LogComFlow(a) RTLogComPrintf a
959	#else
960	# define LogComFlow(a) do { } while (0)
961	#endif
962
963	#ifdef LOG_TO_COM
964	# undef Log
965	# define Log(a) LogCom(a)
966	# undef LogFlow
967	# define LogFlow(a) LogComFlow(a)
968	#endif
969
970	/** @} */
971
972
973	/** @name Backdoor Logging
974	* @{
975	*/
976
977	#ifdef __DOXYGEN__
978	# define LOG_TO_BACKDOOR
979	# define LOG_NO_BACKDOOR
980	#endif
981
982	/** @def LOG_TO_BACKDOOR
983	* Redirects the normal logging macros to the backdoor versions.
984	*/
985
986	/** @def LOG_NO_BACKDOOR
987	* Disables all LogBackdoor* macros.
988	*/
989
990	/** @def LogBackdoor
991	* Generic logging to the VBox backdoor via port I/O.
992	*/
993	#if defined(LOG_ENABLED) && !defined(LOG_NO_BACKDOOR)
994	# define LogBackdoor(a) RTLogBackdoorPrintf a
995	#else
996	# define LogBackdoor(a) do { } while (0)
997	#endif
998
999	/** @def LogBackdoorFlow
1000	* Logging of execution flow messages to the backdoor I/O port.
1001	*/
1002	#if defined(LOG_ENABLED) && !defined(LOG_NO_BACKDOOR)
1003	# define LogBackdoorFlow(a) RTLogBackdoorPrintf a
1004	#else
1005	# define LogBackdoorFlow(a) do { } while (0)
1006	#endif
1007
1008	/** @def LogRelBackdoor
1009	* Release logging to the VBox backdoor via port I/O.
1010	*/
1011	#if !defined(LOG_NO_BACKDOOR)
1012	# define LogRelBackdoor(a) RTLogBackdoorPrintf a
1013	#else
1014	# define LogRelBackdoor(a) do { } while (0)
1015	#endif
1016
1017	#ifdef LOG_TO_BACKDOOR
1018	# undef Log
1019	# define Log(a) LogBackdoor(a)
1020	# undef LogFlow
1021	# define LogFlow(a) LogBackdoorFlow(a)
1022	# undef LogRel
1023	# define LogRel(a) LogRelBackdoor(a)
1024	#endif
1025
1026	/** @} */
1027
1028
1029
1030
1031	/**
1032	* Gets the default logger instance.
1033	*
1034	* @returns Pointer to default logger instance.
1035	* @returns NULL if no default logger instance available.
1036	*/
1037	RTDECL(PRTLOGGER) RTLogDefaultInstance(void);
1038
1039	#ifdef IN_RING0
1040	/**
1041	* Changes the default logger instance for the current thread.
1042	*
1043	* @returns IPRT status code.
1044	* @param pLogger The logger instance. Pass NULL for deregistration.
1045	* @param uKey Associated key for cleanup purposes. If pLogger is NULL,
1046	* all instances with this key will be deregistered. So in
1047	* order to only deregister the instance associated with the
1048	* current thread use 0.
1049	*/
1050	RTDECL(int) RTLogSetDefaultInstanceThread(PRTLOGGER pLogger, uintptr_t uKey);
1051	#endif /* IN_RING0 */
1052
1053
1054	#ifdef LOG_ENABLED
1055	/** Internal worker function.
1056	* Don't call directly, use the LogIsItEnabled macro!
1057	*/
1058	DECLINLINE(bool) LogIsItEnabledInternal(void *pvInst, unsigned iGroup, unsigned fFlags)
1059	{
1060	register PRTLOGGER pLogger = (PRTLOGGER)pvInst ? (PRTLOGGER)pvInst : RTLogDefaultInstance();
1061	if (pLogger)
1062	{
1063	register unsigned fGrpFlags = pLogger->afGroups[(unsigned)iGroup < pLogger->cGroups ? (unsigned)iGroup : 0];
1064	if ((fGrpFlags & (fFlags \| RTLOGGRPFLAGS_ENABLED)) == (fFlags \| RTLOGGRPFLAGS_ENABLED))
1065	return true;
1066	}
1067	return false;
1068	}
1069	#endif
1070
1071
1072	#ifndef IN_GC
1073	/**
1074	* Creates the default logger instance for a iprt users.
1075	*
1076	* Any user of the logging features will need to implement
1077	* this or use the generic dummy.
1078	*
1079	* @returns Pointer to the logger instance.
1080	*/
1081	RTDECL(PRTLOGGER) RTLogDefaultInit(void);
1082
1083	/**
1084	* Create a logger instance.
1085	*
1086	* @returns iprt status code.
1087	*
1088	* @param ppLogger Where to store the logger instance.
1089	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1090	* @param pszGroupSettings The initial group settings.
1091	* @param pszEnvVarBase Base name for the environment variables for this instance.
1092	* @param cGroups Number of groups in the array.
1093	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1094	* logger instance.
1095	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1096	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1097	* @param ... Format arguments.
1098	*/
1099	RTDECL(int) RTLogCreate(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1100	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1101	RTUINT fDestFlags, const char *pszFilenameFmt, ...);
1102
1103	/**
1104	* Create a logger instance.
1105	*
1106	* @returns iprt status code.
1107	*
1108	* @param ppLogger Where to store the logger instance.
1109	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1110	* @param pszGroupSettings The initial group settings.
1111	* @param pszEnvVarBase Base name for the environment variables for this instance.
1112	* @param cGroups Number of groups in the array.
1113	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1114	* logger instance.
1115	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1116	* @param pszErrorMsg A buffer which is filled with an error message if something fails. May be NULL.
1117	* @param cchErrorMsg The size of the error message buffer.
1118	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1119	* @param ... Format arguments.
1120	*/
1121	RTDECL(int) RTLogCreateEx(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1122	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1123	RTUINT fDestFlags, char pszErrorMsg, size_t cchErrorMsg, const char pszFilenameFmt, ...);
1124
1125	/**
1126	* Create a logger instance.
1127	*
1128	* @returns iprt status code.
1129	*
1130	* @param ppLogger Where to store the logger instance.
1131	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1132	* @param pszGroupSettings The initial group settings.
1133	* @param pszEnvVarBase Base name for the environment variables for this instance.
1134	* @param cGroups Number of groups in the array.
1135	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1136	* logger instance.
1137	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1138	* @param pszErrorMsg A buffer which is filled with an error message if something fails. May be NULL.
1139	* @param cchErrorMsg The size of the error message buffer.
1140	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1141	* @param args Format arguments.
1142	*/
1143	RTDECL(int) RTLogCreateExV(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1144	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1145	RTUINT fDestFlags, char pszErrorMsg, size_t cchErrorMsg, const char pszFilenameFmt, va_list args);
1146
1147	/**
1148	* Create a logger instance for singled threaded ring-0 usage.
1149	*
1150	* @returns iprt status code.
1151	*
1152	* @param pLogger Where to create the logger instance.
1153	* @param cbLogger The amount of memory available for the logger instance.
1154	* @param pfnLogger Pointer to logger wrapper function for the clone.
1155	* @param pfnFlush Pointer to flush function for the clone.
1156	* @param fFlags Logger instance flags for the clone, a combination of the RTLOGFLAGS_* values.
1157	* @param fDestFlags The destination flags.
1158	*/
1159	RTDECL(int) RTLogCreateForR0(PRTLOGGER pLogger, size_t cbLogger, PFNRTLOGGER pfnLogger, PFNRTLOGFLUSH pfnFlush, RTUINT fFlags, RTUINT fDestFlags);
1160
1161	/**
1162	* Destroys a logger instance.
1163	*
1164	* The instance is flushed and all output destinations closed (where applicable).
1165	*
1166	* @returns iprt status code.
1167	* @param pLogger The logger instance which close destroyed.
1168	*/
1169	RTDECL(int) RTLogDestroy(PRTLOGGER pLogger);
1170
1171	/**
1172	* Create a logger instance clone for GC usage.
1173	*
1174	* @returns iprt status code.
1175	*
1176	* @param pLogger The logger instance to be cloned.
1177	* @param pLoggerGC Where to create the GC logger instance.
1178	* @param cbLoggerGC Amount of memory allocated to for the GC logger instance clone.
1179	* @param pfnLoggerGCPtr Pointer to logger wrapper function for this instance (GC Ptr).
1180	* @param pfnFlushGCPtr Pointer to flush function (GC Ptr).
1181	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1182	*/
1183	RTDECL(int) RTLogCloneGC(PRTLOGGER pLogger, PRTLOGGERGC pLoggerGC, size_t cbLoggerGC,
1184	RTGCPTR pfnLoggerGCPtr, RTGCPTR pfnFlushGCPtr, RTUINT fFlags);
1185
1186	/**
1187	* Flushes a GC logger instance to a HC logger.
1188	*
1189	* @returns iprt status code.
1190	* @param pLogger The HC logger instance to flush pLoggerGC to.
1191	* If NULL the default logger is used.
1192	* @param pLoggerGC The GC logger instance to flush.
1193	*/
1194	RTDECL(void) RTLogFlushGC(PRTLOGGER pLogger, PRTLOGGERGC pLoggerGC);
1195
1196	/**
1197	* Flushes the buffer in one logger instance onto another logger.
1198	*
1199	* @returns iprt status code.
1200	*
1201	* @param pSrcLogger The logger instance to flush.
1202	* @param pDstLogger The logger instance to flush onto.
1203	* If NULL the default logger will be used.
1204	*/
1205	RTDECL(void) RTLogFlushToLogger(PRTLOGGER pSrcLogger, PRTLOGGER pDstLogger);
1206
1207	/**
1208	* Copies the group settings and flags from logger instance to another.
1209	*
1210	* @returns IPRT status code.
1211	* @param pDstLogger The destination logger instance.
1212	* @param pSrcLogger The source logger instance. If NULL the default one is used.
1213	* @param fFlagsOr OR mask for the flags.
1214	* @param fFlagsAnd AND mask for the flags.
1215	*/
1216	RTDECL(int) RTLogCopyGroupsAndFlags(PRTLOGGER pDstLogger, PCRTLOGGER pSrcLogger, unsigned fFlagsOr, unsigned fFlagsAnd);
1217
1218	/**
1219	* Updates the group settings for the logger instance using the specified
1220	* specification string.
1221	*
1222	* @returns iprt status code.
1223	* Failures can safely be ignored.
1224	* @param pLogger Logger instance (NULL for default logger).
1225	* @param pszVar Value to parse.
1226	*/
1227	RTDECL(int) RTLogGroupSettings(PRTLOGGER pLogger, const char *pszVar);
1228	#endif /* !IN_GC */
1229
1230	/**
1231	* Updates the flags for the logger instance using the specified
1232	* specification string.
1233	*
1234	* @returns iprt status code.
1235	* Failures can safely be ignored.
1236	* @param pLogger Logger instance (NULL for default logger).
1237	* @param pszVar Value to parse.
1238	*/
1239	RTDECL(int) RTLogFlags(PRTLOGGER pLogger, const char *pszVar);
1240
1241	/**
1242	* Flushes the specified logger.
1243	*
1244	* @param pLogger The logger instance to flush.
1245	* If NULL the default instance is used. The default instance
1246	* will not be initialized by this call.
1247	*/
1248	RTDECL(void) RTLogFlush(PRTLOGGER pLogger);
1249
1250	/**
1251	* Write to a logger instance.
1252	*
1253	* @param pLogger Pointer to logger instance.
1254	* @param pvCallerRet Ignored.
1255	* @param pszFormat Format string.
1256	* @param ... Format arguments.
1257	*/
1258	RTDECL(void) RTLogLogger(PRTLOGGER pLogger, void pvCallerRet, const char pszFormat, ...);
1259
1260	/**
1261	* Write to a logger instance.
1262	*
1263	* @param pLogger Pointer to logger instance.
1264	* @param pszFormat Format string.
1265	* @param args Format arguments.
1266	*/
1267	RTDECL(void) RTLogLoggerV(PRTLOGGER pLogger, const char *pszFormat, va_list args);
1268
1269	/**
1270	* Write to a logger instance.
1271	*
1272	* This function will check whether the instance, group and flags makes up a
1273	* logging kind which is currently enabled before writing anything to the log.
1274	*
1275	* @param pLogger Pointer to logger instance. If NULL the default logger instance will be attempted.
1276	* @param fFlags The logging flags.
1277	* @param iGroup The group.
1278	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1279	* only for internal usage!
1280	* @param pszFormat Format string.
1281	* @param ... Format arguments.
1282	* @remark This is a worker function of LogIt.
1283	*/
1284	RTDECL(void) RTLogLoggerEx(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, ...);
1285
1286	/**
1287	* Write to a logger instance.
1288	*
1289	* This function will check whether the instance, group and flags makes up a
1290	* logging kind which is currently enabled before writing anything to the log.
1291	*
1292	* @param pLogger Pointer to logger instance. If NULL the default logger instance will be attempted.
1293	* @param fFlags The logging flags.
1294	* @param iGroup The group.
1295	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1296	* only for internal usage!
1297	* @param pszFormat Format string.
1298	* @param args Format arguments.
1299	*/
1300	RTDECL(void) RTLogLoggerExV(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
1301
1302	/**
1303	* printf like function for writing to the default log.
1304	*
1305	* @param pszFormat Printf like format string.
1306	* @param ... Optional arguments as specified in pszFormat.
1307	*
1308	* @remark The API doesn't support formatting of floating point numbers at the moment.
1309	*/
1310	RTDECL(void) RTLogPrintf(const char *pszFormat, ...);
1311
1312	/**
1313	* vprintf like function for writing to the default log.
1314	*
1315	* @param pszFormat Printf like format string.
1316	* @param args Optional arguments as specified in pszFormat.
1317	*
1318	* @remark The API doesn't support formatting of floating point numbers at the moment.
1319	*/
1320	RTDECL(void) RTLogPrintfV(const char *pszFormat, va_list args);
1321
1322
1323	#ifndef DECLARED_FNRTSTROUTPUT /* duplicated in iprt/string.h */
1324	#define DECLARED_FNRTSTROUTPUT
1325	/**
1326	* Output callback.
1327	*
1328	* @returns number of bytes written.
1329	* @param pvArg User argument.
1330	* @param pachChars Pointer to an array of utf-8 characters.
1331	* @param cbChars Number of bytes in the character array pointed to by pachChars.
1332	*/
1333	typedef DECLCALLBACK(size_t) FNRTSTROUTPUT(void pvArg, const char pachChars, size_t cbChars);
1334	/** Pointer to callback function. */
1335	typedef FNRTSTROUTPUT *PFNRTSTROUTPUT;
1336	#endif
1337
1338	/**
1339	* Partial vsprintf worker implementation.
1340	*
1341	* @returns number of bytes formatted.
1342	* @param pfnOutput Output worker.
1343	* Called in two ways. Normally with a string an it's length.
1344	* For termination, it's called with NULL for string, 0 for length.
1345	* @param pvArg Argument to output worker.
1346	* @param pszFormat Format string.
1347	* @param args Argument list.
1348	*/
1349	RTDECL(size_t) RTLogFormatV(PFNRTSTROUTPUT pfnOutput, void pvArg, const char pszFormat, va_list args);
1350
1351	/**
1352	* Write log buffer to COM port.
1353	*
1354	* @param pach Pointer to the buffer to write.
1355	* @param cb Number of bytes to write.
1356	*/
1357	RTDECL(void) RTLogWriteCom(const char *pach, size_t cb);
1358
1359	/**
1360	* Prints a formatted string to the serial port used for logging.
1361	*
1362	* @returns Number of bytes written.
1363	* @param pszFormat Format string.
1364	* @param ... Optional arguments specified in the format string.
1365	*/
1366	RTDECL(size_t) RTLogComPrintf(const char *pszFormat, ...);
1367
1368	/**
1369	* Prints a formatted string to the serial port used for logging.
1370	*
1371	* @returns Number of bytes written.
1372	* @param pszFormat Format string.
1373	* @param args Optional arguments specified in the format string.
1374	*/
1375	RTDECL(size_t) RTLogComPrintfV(const char *pszFormat, va_list args);
1376
1377
1378	#if 0 /* not implemented yet */
1379
1380	/** Indicates that the semaphores shall be used to notify the other
1381	* part about buffer changes. */
1382	#define LOGHOOKBUFFER_FLAGS_SEMAPHORED 1
1383
1384	/**
1385	* Log Hook Buffer.
1386	* Use to commuicate between the logger and a log consumer.
1387	*/
1388	typedef struct RTLOGHOOKBUFFER
1389	{
1390	/** Write pointer. */
1391	volatile void *pvWrite;
1392	/** Read pointer. */
1393	volatile void *pvRead;
1394	/** Buffer start. */
1395	void *pvStart;
1396	/** Buffer end (exclusive). */
1397	void *pvEnd;
1398	/** Signaling semaphore used by the writer to wait on a full buffer.
1399	* Only used when indicated in flags. */
1400	void *pvSemWriter;
1401	/** Signaling semaphore used by the read to wait on an empty buffer.
1402	* Only used when indicated in flags. */
1403	void *pvSemReader;
1404	/** Buffer flags. Current reserved and set to zero. */
1405	volatile unsigned fFlags;
1406	} RTLOGHOOKBUFFER;
1407	/** Pointer to a log hook buffer. */
1408	typedef RTLOGHOOKBUFFER *PRTLOGHOOKBUFFER;
1409
1410
1411	/**
1412	* Register a logging hook.
1413	*
1414	* This type of logging hooks are expecting different threads acting
1415	* producer and consumer. They share a circular buffer which have two
1416	* pointers one for each end. When the buffer is full there are two
1417	* alternatives (indicated by a buffer flag), either wait for the
1418	* consumer to get it's job done, or to write a generic message saying
1419	* buffer overflow.
1420	*
1421	* Since the waiting would need a signal semaphore, we'll skip that for now.
1422	*
1423	* @returns iprt status code.
1424	* @param pBuffer Pointer to a logger hook buffer.
1425	*/
1426	RTDECL(int) RTLogRegisterHook(PRTLOGGER pLogger, PRTLOGHOOKBUFFER pBuffer);
1427
1428	/**
1429	* Deregister a logging hook registerd with RTLogRegisterHook().
1430	*
1431	* @returns iprt status code.
1432	* @param pBuffer Pointer to a logger hook buffer.
1433	*/
1434	RTDECL(int) RTLogDeregisterHook(PRTLOGGER pLogger, PRTLOGHOOKBUFFER pBuffer);
1435
1436	#endif /* not implemented yet */
1437
1438
1439
1440	/**
1441	* Write log buffer to a debugger (RTLOGDEST_DEBUGGER).
1442	*
1443	* @param pach What to write.
1444	* @param cb How much to write.
1445	* @remark When linking statically, this function can be replaced by defining your own.
1446	*/
1447	RTDECL(void) RTLogWriteDebugger(const char *pach, size_t cb);
1448
1449	/**
1450	* Write log buffer to a user defined output stream (RTLOGDEST_USER).
1451	*
1452	* @param pach What to write.
1453	* @param cb How much to write.
1454	* @remark When linking statically, this function can be replaced by defining your own.
1455	*/
1456	RTDECL(void) RTLogWriteUser(const char *pach, size_t cb);
1457
1458	/**
1459	* Write log buffer to stdout (RTLOGDEST_STDOUT).
1460	*
1461	* @param pach What to write.
1462	* @param cb How much to write.
1463	* @remark When linking statically, this function can be replaced by defining your own.
1464	*/
1465	RTDECL(void) RTLogWriteStdOut(const char *pach, size_t cb);
1466
1467	/**
1468	* Write log buffer to stdout (RTLOGDEST_STDERR).
1469	*
1470	* @param pach What to write.
1471	* @param cb How much to write.
1472	* @remark When linking statically, this function can be replaced by defining your own.
1473	*/
1474	RTDECL(void) RTLogWriteStdErr(const char *pach, size_t cb);
1475
1476	#ifdef VBOX
1477
1478	/**
1479	* Prints a formatted string to the backdoor port.
1480	*
1481	* @returns Number of bytes written.
1482	* @param pszFormat Format string.
1483	* @param ... Optional arguments specified in the format string.
1484	*/
1485	RTDECL(size_t) RTLogBackdoorPrintf(const char *pszFormat, ...);
1486
1487	/**
1488	* Prints a formatted string to the backdoor port.
1489	*
1490	* @returns Number of bytes written.
1491	* @param pszFormat Format string.
1492	* @param args Optional arguments specified in the format string.
1493	*/
1494	RTDECL(size_t) RTLogBackdoorPrintfV(const char *pszFormat, va_list args);
1495
1496	#endif /* VBOX */
1497
1498	__END_DECLS
1499
1500	/** @} */
1501
1502	#endif
1503

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source: vbox/trunk/include/iprt/log.h@ 3636

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