log.h@ 13469

Last change on this file since 13469 was 12147, checked in by vboxsync, 16 years ago
IPRT: added RTLOG_REL_DISABLE and RTLOG_REL_ENABLE for disabling release logging and overriding the disabling respectively.
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File size: 54.9 KB

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1	/** @file
2	* IPRT - Logging.
3	*/
4
5	/*
6	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*
25	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
26	* Clara, CA 95054 USA or visit http://www.sun.com if you need
27	* additional information or have any questions.
28	*/
29
30	#ifndef ___iprt_log_h
31	#define ___iprt_log_h
32
33	#include <iprt/cdefs.h>
34	#include <iprt/types.h>
35	#include <iprt/stdarg.h>
36
37	__BEGIN_DECLS
38
39	/** @defgroup grp_rt_log RTLog - Logging
40	* @ingroup grp_rt
41	* @{
42	*/
43
44	/**
45	* IPRT Logging Groups.
46	* (Remember to update RT_LOGGROUP_NAMES!)
47	*
48	* @remark It should be pretty obvious, but just to have
49	* mentioned it, the values are sorted alphabetically (using the
50	* english alphabet) except for _DEFAULT which is always first.
51	*
52	* If anyone might be wondering what the alphabet looks like:
53	* 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
54	*/
55	typedef enum RTLOGGROUP
56	{
57	/** Default logging group. */
58	RTLOGGROUP_DEFAULT,
59	RTLOGGROUP_DIR,
60	RTLOGGROUP_FILE,
61	RTLOGGROUP_FS,
62	RTLOGGROUP_LDR,
63	RTLOGGROUP_PATH,
64	RTLOGGROUP_PROCESS,
65	RTLOGGROUP_THREAD,
66	RTLOGGROUP_TIME,
67	RTLOGGROUP_TIMER,
68	RTLOGGROUP_ZIP = 31,
69	RTLOGGROUP_FIRST_USER = 32
70	} RTLOGGROUP;
71
72	/** @def RT_LOGGROUP_NAMES
73	* IPRT Logging group names.
74	*
75	* Must correspond 100% to RTLOGGROUP!
76	* Don't forget commas!
77	*
78	* @remark It should be pretty obvious, but just to have
79	* mentioned it, the values are sorted alphabetically (using the
80	* english alphabet) except for _DEFAULT which is always first.
81	*
82	* If anyone might be wondering what the alphabet looks like:
83	* 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
84	*/
85	#define RT_LOGGROUP_NAMES \
86	"DEFAULT", \
87	"RT_DIR", \
88	"RT_FILE", \
89	"RT_FS", \
90	"RT_LDR", \
91	"RT_PATH", \
92	"RT_PROCESS", \
93	"RT_THREAD", \
94	"RT_TIME", \
95	"RT_TIMER", \
96	"RT_10", \
97	"RT_11", \
98	"RT_12", \
99	"RT_13", \
100	"RT_14", \
101	"RT_15", \
102	"RT_16", \
103	"RT_17", \
104	"RT_18", \
105	"RT_19", \
106	"RT_20", \
107	"RT_21", \
108	"RT_22", \
109	"RT_23", \
110	"RT_24", \
111	"RT_25", \
112	"RT_26", \
113	"RT_27", \
114	"RT_28", \
115	"RT_29", \
116	"RT_30", \
117	"RT_ZIP" \
118
119
120	/** @def LOG_GROUP
121	* Active logging group.
122	*/
123	#ifndef LOG_GROUP
124	# define LOG_GROUP RTLOGGROUP_DEFAULT
125	#endif
126
127	/** @def LOG_INSTANCE
128	* Active logging instance.
129	*/
130	#ifndef LOG_INSTANCE
131	# define LOG_INSTANCE NULL
132	#endif
133
134	/** @def LOG_REL_INSTANCE
135	* Active release logging instance.
136	*/
137	#ifndef LOG_REL_INSTANCE
138	# define LOG_REL_INSTANCE NULL
139	#endif
140
141	/** @def LOG_FN_FMT
142	* You can use this to specify you desired way of printing __PRETTY_FUNCTION__
143	* if you dislike the default one.
144	*/
145	#ifndef LOG_FN_FMT
146	# define LOG_FN_FMT "%Rfn"
147	#endif
148
149	/** Logger structure. */
150	#ifdef IN_GC
151	typedef struct RTLOGGERRC RTLOGGER;
152	#else
153	typedef struct RTLOGGER RTLOGGER;
154	#endif
155	/** Pointer to logger structure. */
156	typedef RTLOGGER *PRTLOGGER;
157	/** Pointer to const logger structure. */
158	typedef const RTLOGGER *PCRTLOGGER;
159
160
161	/** Guest context logger structure. */
162	typedef struct RTLOGGERRC RTLOGGERRC;
163	/** Pointer to guest context logger structure. */
164	typedef RTLOGGERRC *PRTLOGGERRC;
165	/** Pointer to const guest context logger structure. */
166	typedef const RTLOGGERRC *PCRTLOGGERRC;
167
168
169	/**
170	* Logger function.
171	*
172	* @param pszFormat Format string.
173	* @param ... Optional arguments as specified in the format string.
174	*/
175	typedef DECLCALLBACK(void) FNRTLOGGER(const char *pszFormat, ...);
176	/** Pointer to logger function. */
177	typedef FNRTLOGGER *PFNRTLOGGER;
178
179	/**
180	* Flush function.
181	*
182	* @param pLogger Pointer to the logger instance which is to be flushed.
183	*/
184	typedef DECLCALLBACK(void) FNRTLOGFLUSH(PRTLOGGER pLogger);
185	/** Pointer to logger function. */
186	typedef FNRTLOGFLUSH *PFNRTLOGFLUSH;
187
188	/**
189	* Flush function.
190	*
191	* @param pLogger Pointer to the logger instance which is to be flushed.
192	*/
193	typedef DECLCALLBACK(void) FNRTLOGFLUSHGC(PRTLOGGERRC pLogger);
194	/** Pointer to logger function. */
195	typedef RCPTRTYPE(FNRTLOGFLUSHGC *) PFNRTLOGFLUSHGC;
196
197
198	/**
199	* Logger instance structure for GC.
200	*/
201	struct RTLOGGERRC
202	{
203	/** Pointer to temporary scratch buffer.
204	* This is used to format the log messages. */
205	char achScratch[16384];
206	/** Current scratch buffer position. */
207	RTUINT offScratch;
208	/** This is set if a prefix is pending. */
209	RTUINT fPendingPrefix;
210	/** Pointer to the logger function.
211	* This is actually pointer to a wrapper which will push a pointer to the
212	* instance pointer onto the stack before jumping to the real logger function.
213	* A very unfortunate hack to work around the missing variadic macro support in C++. */
214	RCPTRTYPE(PFNRTLOGGER) pfnLogger;
215	/** Pointer to the flush function. */
216	PFNRTLOGFLUSHGC pfnFlush;
217	/** Magic number (RTLOGGERRC_MAGIC). */
218	uint32_t u32Magic;
219	/** Logger instance flags - RTLOGFLAGS. */
220	RTUINT fFlags;
221	/** Number of groups in the afGroups member. */
222	RTUINT cGroups;
223	/** Group flags array - RTLOGGRPFLAGS.
224	* This member have variable length and may extend way beyond
225	* the declared size of 1 entry. */
226	RTUINT afGroups[1];
227	};
228
229	/** RTLOGGERRC::u32Magic value. (John Rogers Searle) */
230	#define RTLOGGERRC_MAGIC 0x19320731
231
232
233
234	#ifndef IN_GC
235	/**
236	* Logger instance structure.
237	*/
238	struct RTLOGGER
239	{
240	/** Pointer to temporary scratch buffer.
241	* This is used to format the log messages. */
242	char achScratch[16384];
243	/** Current scratch buffer position. */
244	RTUINT offScratch;
245	/** This is set if a prefix is pending. */
246	RTUINT fPendingPrefix;
247	/** Pointer to the logger function.
248	* This is actually pointer to a wrapper which will push a pointer to the
249	* instance pointer onto the stack before jumping to the real logger function.
250	* A very unfortunate hack to work around the missing variadic macro support in C++.
251	* (The memory is (not R0) allocated using RTMemExecAlloc().) */
252	PFNRTLOGGER pfnLogger;
253	/** Pointer to the flush function. */
254	PFNRTLOGFLUSH pfnFlush;
255	/** Mutex. */
256	RTSEMFASTMUTEX MutexSem;
257	/** Magic number. */
258	uint32_t u32Magic;
259	/** Logger instance flags - RTLOGFLAGS. */
260	RTUINT fFlags;
261	/** Destination flags - RTLOGDEST. */
262	RTUINT fDestFlags;
263	/** Handle to log file (if open). */
264	RTFILE File;
265	/** Pointer to filename.
266	* (The memory is allocated in the smae block as RTLOGGER.) */
267	char *pszFilename;
268	/** Pointer to the group name array.
269	* (The data is readonly and provided by the user.) */
270	const char * const *papszGroups;
271	/** The max number of groups that there is room for in afGroups and papszGroups.
272	* Used by RTLogCopyGroupAndFlags(). */
273	RTUINT cMaxGroups;
274	/** Number of groups in the afGroups and papszGroups members. */
275	RTUINT cGroups;
276	/** Group flags array - RTLOGGRPFLAGS.
277	* This member have variable length and may extend way beyond
278	* the declared size of 1 entry. */
279	RTUINT afGroups[1];
280	};
281
282	/** RTLOGGER::u32Magic value. (Avram Noam Chomsky) */
283	#define RTLOGGER_MAGIC 0x19281207
284
285	#endif
286
287
288	/**
289	* Logger flags.
290	*/
291	typedef enum RTLOGFLAGS
292	{
293	/** The logger instance is disabled for normal output. */
294	RTLOGFLAGS_DISABLED = 0x00000001,
295	/** The logger instance is using buffered output. */
296	RTLOGFLAGS_BUFFERED = 0x00000002,
297	/** The logger instance expands LF to CR/LF. */
298	RTLOGFLAGS_USECRLF = 0x00000010,
299	/** Append to the log destination where applicable. */
300	RTLOGFLAGS_APPEND = 0x00000020,
301	/** Show relative timestamps with PREFIX_TSC and PREFIX_TS */
302	RTLOGFLAGS_REL_TS = 0x00000040,
303	/** Show decimal timestamps with PREFIX_TSC and PREFIX_TS */
304	RTLOGFLAGS_DECIMAL_TS = 0x00000080,
305	/** New lines should be prefixed with the write and read lock counts. */
306	RTLOGFLAGS_PREFIX_LOCK_COUNTS = 0x00008000,
307	/** New lines should be prefixed with the CPU id (ApicID on intel/amd). */
308	RTLOGFLAGS_PREFIX_CPUID = 0x00010000,
309	/** New lines should be prefixed with the native process id. */
310	RTLOGFLAGS_PREFIX_PID = 0x00020000,
311	/** New lines should be prefixed with group flag number causing the output. */
312	RTLOGFLAGS_PREFIX_FLAG_NO = 0x00040000,
313	/** New lines should be prefixed with group flag name causing the output. */
314	RTLOGFLAGS_PREFIX_FLAG = 0x00080000,
315	/** New lines should be prefixed with group number. */
316	RTLOGFLAGS_PREFIX_GROUP_NO = 0x00100000,
317	/** New lines should be prefixed with group name. */
318	RTLOGFLAGS_PREFIX_GROUP = 0x00200000,
319	/** New lines should be prefixed with the native thread id. */
320	RTLOGFLAGS_PREFIX_TID = 0x00400000,
321	/** New lines should be prefixed with thread name. */
322	RTLOGFLAGS_PREFIX_THREAD = 0x00800000,
323	/** New lines should be prefixed with formatted timestamp since program start. */
324	RTLOGFLAGS_PREFIX_TIME_PROG = 0x04000000,
325	/** New lines should be prefixed with formatted timestamp (UCT). */
326	RTLOGFLAGS_PREFIX_TIME = 0x08000000,
327	/** New lines should be prefixed with milliseconds since program start. */
328	RTLOGFLAGS_PREFIX_MS_PROG = 0x10000000,
329	/** New lines should be prefixed with timestamp. */
330	RTLOGFLAGS_PREFIX_TSC = 0x20000000,
331	/** New lines should be prefixed with timestamp. */
332	RTLOGFLAGS_PREFIX_TS = 0x40000000,
333	/** The prefix mask. */
334	RTLOGFLAGS_PREFIX_MASK = 0x7cff8000
335	} RTLOGFLAGS;
336
337	/**
338	* Logger per group flags.
339	*/
340	typedef enum RTLOGGRPFLAGS
341	{
342	/** Enabled. */
343	RTLOGGRPFLAGS_ENABLED = 0x00000001,
344	/** Level 1 logging. */
345	RTLOGGRPFLAGS_LEVEL_1 = 0x00000002,
346	/** Level 2 logging. */
347	RTLOGGRPFLAGS_LEVEL_2 = 0x00000004,
348	/** Level 3 logging. */
349	RTLOGGRPFLAGS_LEVEL_3 = 0x00000008,
350	/** Level 4 logging. */
351	RTLOGGRPFLAGS_LEVEL_4 = 0x00000010,
352	/** Level 5 logging. */
353	RTLOGGRPFLAGS_LEVEL_5 = 0x00000020,
354	/** Level 6 logging. */
355	RTLOGGRPFLAGS_LEVEL_6 = 0x00000040,
356	/** Flow logging. */
357	RTLOGGRPFLAGS_FLOW = 0x00000080,
358
359	/** Lelik logging. */
360	RTLOGGRPFLAGS_LELIK = 0x00000100,
361	/** Michael logging. */
362	RTLOGGRPFLAGS_MICHAEL = 0x00000200,
363	/** dmik logging. */
364	RTLOGGRPFLAGS_DMIK = 0x00000400,
365	/** sunlover logging. */
366	RTLOGGRPFLAGS_SUNLOVER = 0x00000800,
367	/** Achim logging. */
368	RTLOGGRPFLAGS_ACHIM = 0x00001000,
369	/** Sander logging. */
370	RTLOGGRPFLAGS_SANDER = 0x00002000,
371	/** Klaus logging. */
372	RTLOGGRPFLAGS_KLAUS = 0x00004000,
373	/** Frank logging. */
374	RTLOGGRPFLAGS_FRANK = 0x00008000,
375	/** bird logging. */
376	RTLOGGRPFLAGS_BIRD = 0x00010000,
377	/** aleksey logging. */
378	RTLOGGRPFLAGS_ALEKSEY = 0x00020000,
379	/** NoName logging. */
380	RTLOGGRPFLAGS_NONAME = 0x00040000
381	} RTLOGGRPFLAGS;
382
383	/**
384	* Logger destination type.
385	*/
386	typedef enum RTLOGDEST
387	{
388	/** Log to file. */
389	RTLOGDEST_FILE = 0x00000001,
390	/** Log to stdout. */
391	RTLOGDEST_STDOUT = 0x00000002,
392	/** Log to stderr. */
393	RTLOGDEST_STDERR = 0x00000004,
394	/** Log to debugger (win32 only). */
395	RTLOGDEST_DEBUGGER = 0x00000008,
396	/** Log to com port. */
397	RTLOGDEST_COM = 0x00000010,
398	/** Just a dummy flag to be used when no other flag applies. */
399	RTLOGDEST_DUMMY = 0x20000000,
400	/** Log to a user defined output stream. */
401	RTLOGDEST_USER = 0x40000000
402	} RTLOGDEST;
403
404
405	RTDECL(void) RTLogPrintfEx(void pvInstance, unsigned fFlags, unsigned iGroup, const char pszFormat, ...);
406
407
408	#ifdef DOXYGEN_RUNNING
409	# define LOG_DISABLED
410	# define LOG_ENABLED
411	# define LOG_ENABLE_FLOW
412	#endif
413
414	/** @def LOG_DISABLED
415	* Use this compile time define to disable all logging macros. It can
416	* be overriden for each of the logging macros by the LOG_ENABLE*
417	* compile time defines.
418	*/
419
420	/** @def LOG_ENABLED
421	* Use this compile time define to enable logging when not in debug mode
422	* or LOG_DISABLED is set.
423	* This will enabled Log() only.
424	*/
425
426	/** @def LOG_ENABLE_FLOW
427	* Use this compile time define to enable flow logging when not in
428	* debug mode or LOG_DISABLED is defined.
429	* This will enable LogFlow() only.
430	*/
431
432	/*
433	* Determin whether logging is enabled and forcefully normalize the indicators.
434	*/
435	#if (defined(DEBUG) \|\| defined(LOG_ENABLED)) && !defined(LOG_DISABLED)
436	# undef LOG_DISABLED
437	# undef LOG_ENABLED
438	# define LOG_ENABLED
439	#else
440	# undef LOG_ENABLED
441	# undef LOG_DISABLED
442	# define LOG_DISABLED
443	#endif
444
445
446	/** @def LOG_USE_C99
447	* Governs the use of variadic macros.
448	*/
449	#ifndef LOG_USE_C99
450	# if defined(RT_ARCH_AMD64)
451	# define LOG_USE_C99
452	# endif
453	#endif
454
455
456	/** @def LogIt
457	* Write to specific logger if group enabled.
458	*/
459	#ifdef LOG_ENABLED
460	# if defined(LOG_USE_C99)
461	# define _LogRemoveParentheseis(...) __VA_ARGS__
462	# define _LogIt(pvInst, fFlags, iGroup, ...) RTLogLoggerEx((PRTLOGGER)pvInst, fFlags, iGroup, __VA_ARGS__)
463	# define LogIt(pvInst, fFlags, iGroup, fmtargs) _LogIt(pvInst, fFlags, iGroup, _LogRemoveParentheseis fmtargs)
464	# define _LogItAlways(pvInst, fFlags, iGroup, ...) RTLogLoggerEx((PRTLOGGER)pvInst, fFlags, ~0U, __VA_ARGS__)
465	# define LogItAlways(pvInst, fFlags, iGroup, fmtargs) _LogItAlways(pvInst, fFlags, iGroup, _LogRemoveParentheseis fmtargs)
466	/** @todo invent a flag or something for skipping the group check so we can pass iGroup. LogItAlways. */
467	# else
468	# define LogIt(pvInst, fFlags, iGroup, fmtargs) \
469	do \
470	{ \
471	register PRTLOGGER LogIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogDefaultInstance(); \
472	if (LogIt_pLogger) \
473	{ \
474	register unsigned LogIt_fFlags = LogIt_pLogger->afGroups[(unsigned)(iGroup) < LogIt_pLogger->cGroups ? (unsigned)(iGroup) : 0]; \
475	if ((LogIt_fFlags & ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) == ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) \
476	LogIt_pLogger->pfnLogger fmtargs; \
477	} \
478	} while (0)
479	# define LogItAlways(pvInst, fFlags, iGroup, fmtargs) \
480	do \
481	{ \
482	register PRTLOGGER LogIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogDefaultInstance(); \
483	if (LogIt_pLogger) \
484	LogIt_pLogger->pfnLogger fmtargs; \
485	} while (0)
486	# endif
487	#else
488	# define LogIt(pvInst, fFlags, iGroup, fmtargs) do { } while (0)
489	# define LogItAlways(pvInst, fFlags, iGroup, fmtargs) do { } while (0)
490	# if defined(LOG_USE_C99)
491	# define _LogRemoveParentheseis(...) __VA_ARGS__
492	# define _LogIt(pvInst, fFlags, iGroup, ...) do { } while (0)
493	# define _LogItAlways(pvInst, fFlags, iGroup, ...) do { } while (0)
494	# endif
495	#endif
496
497
498	/** @def Log
499	* Level 1 logging that works regardless of the group settings.
500	*/
501	#define LogAlways(a) LogItAlways(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, a)
502
503	/** @def Log
504	* Level 1 logging.
505	*/
506	#define Log(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, a)
507
508	/** @def Log2
509	* Level 2 logging.
510	*/
511	#define Log2(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP, a)
512
513	/** @def Log3
514	* Level 3 logging.
515	*/
516	#define Log3(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP, a)
517
518	/** @def Log4
519	* Level 4 logging.
520	*/
521	#define Log4(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP, a)
522
523	/** @def Log5
524	* Level 5 logging.
525	*/
526	#define Log5(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP, a)
527
528	/** @def Log6
529	* Level 6 logging.
530	*/
531	#define Log6(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP, a)
532
533	/** @def LogFlow
534	* Logging of execution flow.
535	*/
536	#define LogFlow(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, a)
537
538	/** @def LogLelik
539	* lelik logging.
540	*/
541	#define LogLelik(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LELIK, LOG_GROUP, a)
542
543
544	/** @def LogMichael
545	* michael logging.
546	*/
547	#define LogMichael(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_MICHAEL, LOG_GROUP, a)
548
549	/** @def LogDmik
550	* dmik logging.
551	*/
552	#define LogDmik(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_DMIK, LOG_GROUP, a)
553
554	/** @def LogSunlover
555	* sunlover logging.
556	*/
557	#define LogSunlover(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_SUNLOVER, LOG_GROUP, a)
558
559	/** @def LogAchim
560	* Achim logging.
561	*/
562	#define LogAchim(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_ACHIM, LOG_GROUP, a)
563
564	/** @def LogSander
565	* Sander logging.
566	*/
567	#define LogSander(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_SANDER, LOG_GROUP, a)
568
569	/** @def LogKlaus
570	* klaus logging.
571	*/
572	#define LogKlaus(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_KLAUS, LOG_GROUP, a)
573
574	/** @def LogFrank
575	* frank logging.
576	*/
577	#define LogFrank(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FRANK, LOG_GROUP, a)
578
579	/** @def LogBird
580	* bird logging.
581	*/
582	#define LogBird(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_BIRD, LOG_GROUP, a)
583
584	/** @def LogAleksey
585	* aleksey logging.
586	*/
587	#define LogAleksey(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_ALEKSEY, LOG_GROUP, a)
588
589	/** @def LogNoName
590	* NoName logging.
591	*/
592	#define LogNoName(a) LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_NONAME, LOG_GROUP, a)
593
594
595	/** @def LogWarning
596	* The same as Log(), but prepents a <tt>"WARNING! "</tt> string to the message.
597	*
598	* @param a Custom log message in format <tt>("string\n" [, args])</tt>.
599	*/
600	#if defined(LOG_USE_C99)
601	# define LogWarning(a) \
602	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, "WARNING! %M", _LogRemoveParentheseis a )
603	#else
604	# define LogWarning(a) \
605	do { Log(("WARNING! ")); Log(a); } while (0)
606	#endif
607
608	/** @def LogTrace
609	* Macro to trace the execution flow: logs the file name, line number and
610	* function name. Can be easily searched for in log files using the
611	* ">>>>>" pattern (prepended to the beginning of each line).
612	*/
613	#define LogTrace() \
614	LogFlow((">>>>> %s (%d): " LOG_FN_FMT "\n", __FILE__, __LINE__, __PRETTY_FUNCTION__))
615
616	/** @def LogTraceMsg
617	* The same as LogTrace but logs a custom log message right after the trace line.
618	*
619	* @param a Custom log message in format <tt>("string\n" [, args])</tt>.
620	*/
621	#ifdef LOG_USE_C99
622	# define LogTraceMsg(a) \
623	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, ">>>>> %s (%d): %M" LOG_FN_FMT, __FILE__, __LINE__, __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
624	#else
625	# define LogTraceMsg(a) \
626	do { LogFlow((">>>>> %s (%d): " LOG_FN_FMT, __FILE__, __LINE__, __PRETTY_FUNCTION__)); LogFlow(a); } while (0)
627	#endif
628
629	/** @def LogFunc
630	* Level 1 logging inside C/C++ functions.
631	*
632	* Prepends the given log message with the function name followed by a
633	* semicolon and space.
634	*
635	* @param a Log message in format <tt>("string\n" [, args])</tt>.
636	*/
637	#ifdef LOG_USE_C99
638	# define LogFunc(a) \
639	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, LOG_FN_FMT ": %M", __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
640	#else
641	# define LogFunc(a) \
642	do { Log((LOG_FN_FMT ": ", __PRETTY_FUNCTION__)); Log(a); } while (0)
643	#endif
644
645	/** @def LogThisFunc
646	* The same as LogFunc but for class functions (methods): the resulting log
647	* line is additionally prepended with a hex value of \|this\| pointer.
648	*
649	* @param a Log message in format <tt>("string\n" [, args])</tt>.
650	*/
651	#ifdef LOG_USE_C99
652	# define LogThisFunc(a) \
653	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, "{%p} " LOG_FN_FMT ": %M", this, __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
654	#else
655	# define LogThisFunc(a) \
656	do { Log(("{%p} " LOG_FN_FMT ": ", this, __PRETTY_FUNCTION__)); Log(a); } while (0)
657	#endif
658
659	/** @def LogFlowFunc
660	* Macro to log the execution flow inside C/C++ functions.
661	*
662	* Prepends the given log message with the function name followed by
663	* a semicolon and space.
664	*
665	* @param a Log message in format <tt>("string\n" [, args])</tt>.
666	*/
667	#ifdef LOG_USE_C99
668	# define LogFlowFunc(a) \
669	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, LOG_FN_FMT ": %M", __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
670	#else
671	# define LogFlowFunc(a) \
672	do { LogFlow((LOG_FN_FMT ": ", __PRETTY_FUNCTION__)); LogFlow(a); } while (0)
673	#endif
674
675	/** @def LogWarningFunc
676	* The same as LogWarning(), but prepents the log message with the function name.
677	*
678	* @param a Log message in format <tt>("string\n" [, args])</tt>.
679	*/
680	#ifdef LOG_USE_C99
681	# define LogWarningFunc(a) \
682	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, LOG_FN_FMT ": WARNING! %M", __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
683	#else
684	# define LogWarningFunc(a) \
685	do { Log((LOG_FN_FMT ": WARNING! ", __PRETTY_FUNCTION__)); Log(a); } while (0)
686	#endif
687
688	/** @def LogFlowThisFunc
689	* The same as LogFlowFunc but for class functions (methods): the resulting log
690	* line is additionally prepended with a hex value of \|this\| pointer.
691	*
692	* @param a Log message in format <tt>("string\n" [, args])</tt>.
693	*/
694	#ifdef LOG_USE_C99
695	# define LogFlowThisFunc(a) \
696	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, "{%p} " LOG_FN_FMT ": %M", this, __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
697	#else
698	# define LogFlowThisFunc(a) \
699	do { LogFlow(("{%p} " LOG_FN_FMT ": ", this, __PRETTY_FUNCTION__)); LogFlow(a); } while (0)
700	#endif
701
702	/** @def LogWarningThisFunc
703	* The same as LogWarningFunc() but for class functions (methods): the resulting
704	* log line is additionally prepended with a hex value of \|this\| pointer.
705	*
706	* @param a Log message in format <tt>("string\n" [, args])</tt>.
707	*/
708	#ifdef LOG_USE_C99
709	# define LogWarningThisFunc(a) \
710	_LogIt(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, "{%p} " LOG_FN_FMT ": WARNING! %M", this, __PRETTY_FUNCTION__, _LogRemoveParentheseis a )
711	#else
712	# define LogWarningThisFunc(a) \
713	do { Log(("{%p} " LOG_FN_FMT ": WARNING! ", this, __PRETTY_FUNCTION__)); Log(a); } while (0)
714	#endif
715
716	/** Shortcut to \|LogFlowFunc ("ENTER\n")\|, marks the beginnig of the function. */
717	#define LogFlowFuncEnter() LogFlowFunc(("ENTER\n"))
718
719	/** Shortcut to \|LogFlowFunc ("LEAVE\n")\|, marks the end of the function. */
720	#define LogFlowFuncLeave() LogFlowFunc(("LEAVE\n"))
721
722	/** Shortcut to \|LogFlowThisFunc ("ENTER\n")\|, marks the beginnig of the function. */
723	#define LogFlowThisFuncEnter() LogFlowThisFunc(("ENTER\n"))
724
725	/** Shortcut to \|LogFlowThisFunc ("LEAVE\n")\|, marks the end of the function. */
726	#define LogFlowThisFuncLeave() LogFlowThisFunc(("LEAVE\n"))
727
728	/** @def LogObjRefCnt
729	* Helper macro to print the current reference count of the given COM object
730	* to the log file.
731	*
732	* @param pObj Pointer to the object in question (must be a pointer to an
733	* IUnknown subclass or simply define COM-style AddRef() and
734	* Release() methods)
735	*
736	* @note Use it only for temporary debugging. It leaves dummy code even if
737	* logging is disabled.
738	*/
739	#define LogObjRefCnt(pObj) \
740	do { \
741	int refc = (pObj)->AddRef(); \
742	LogFlow((#pObj "{%p}.refCnt=%d\n", (pObj), refc - 1)); \
743	(pObj)->Release(); \
744	} while (0)
745
746
747	/** @def LogIsItEnabled
748	* Checks whether the specified logging group is enabled or not.
749	*/
750	#ifdef LOG_ENABLED
751	# define LogIsItEnabled(pvInst, fFlags, iGroup) \
752	LogIsItEnabledInternal((pvInst), (unsigned)(iGroup), (unsigned)(fFlags))
753	#else
754	# define LogIsItEnabled(pvInst, fFlags, iGroup) (false)
755	#endif
756
757	/** @def LogIsEnabled
758	* Checks whether level 1 logging is enabled.
759	*/
760	#define LogIsEnabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP)
761
762	/** @def LogIs2Enabled
763	* Checks whether level 2 logging is enabled.
764	*/
765	#define LogIs2Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP)
766
767	/** @def LogIs3Enabled
768	* Checks whether level 3 logging is enabled.
769	*/
770	#define LogIs3Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP)
771
772	/** @def LogIs4Enabled
773	* Checks whether level 4 logging is enabled.
774	*/
775	#define LogIs4Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP)
776
777	/** @def LogIs5Enabled
778	* Checks whether level 5 logging is enabled.
779	*/
780	#define LogIs5Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP)
781
782	/** @def LogIs6Enabled
783	* Checks whether level 6 logging is enabled.
784	*/
785	#define LogIs6Enabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP)
786
787	/** @def LogIsFlowEnabled
788	* Checks whether execution flow logging is enabled.
789	*/
790	#define LogIsFlowEnabled() LogIsItEnabled(LOG_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP)
791
792
793
794
795	/** @name Release Logging
796	* @{
797	*/
798
799	#ifdef DOXYGEN_RUNNING
800	# define RTLOG_REL_DISABLED
801	# define RTLOG_REL_ENABLED
802	#endif
803
804	/** @def RTLOG_REL_DISABLED
805	* Use this compile time define to disable all release logging
806	* macros.
807	*/
808
809	/** @def RTLOG_REL_ENABLED
810	* Use this compile time define to override RTLOG_REL_DISABLE.
811	*/
812
813	/*
814	* Determin whether release logging is enabled and forcefully normalize the indicators.
815	*/
816	#if !defined(RTLOG_REL_DISABLED) \|\| defined(RTLOG_REL_ENABLED)
817	# undef RTLOG_REL_DISABLED
818	# undef RTLOG_REL_ENABLED
819	# define RTLOG_REL_ENABLED
820	#else
821	# undef RTLOG_REL_ENABLED
822	# undef RTLOG_REL_DISABLED
823	# define RTLOG_REL_DISABLED
824	#endif
825
826
827	/** @def LogIt
828	* Write to specific logger if group enabled.
829	*/
830	#ifdef RTLOG_REL_ENABLED
831	# if defined(LOG_USE_C99)
832	# define _LogRelRemoveParentheseis(...) __VA_ARGS__
833	# define _LogRelIt(pvInst, fFlags, iGroup, ...) RTLogLoggerEx((PRTLOGGER)pvInst, fFlags, iGroup, __VA_ARGS__)
834	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) \
835	do \
836	{ \
837	PRTLOGGER LogRelIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogRelDefaultInstance(); \
838	if (LogRelIt_pLogger) \
839	_LogRelIt(LogRelIt_pLogger, fFlags, iGroup, _LogRelRemoveParentheseis fmtargs); \
840	LogIt(LOG_INSTANCE, fFlags, iGroup, fmtargs); \
841	} while (0)
842	# else
843	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) \
844	do \
845	{ \
846	PRTLOGGER LogRelIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogRelDefaultInstance(); \
847	if (LogRelIt_pLogger) \
848	{ \
849	unsigned LogIt_fFlags = LogRelIt_pLogger->afGroups[(unsigned)(iGroup) < LogRelIt_pLogger->cGroups ? (unsigned)(iGroup) : 0]; \
850	if ((LogIt_fFlags & ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) == ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) \
851	LogRelIt_pLogger->pfnLogger fmtargs; \
852	} \
853	LogIt(LOG_INSTANCE, fFlags, iGroup, fmtargs); \
854	} while (0)
855	# endif
856	#else /* !RTLOG_REL_ENABLED */
857	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) do { } while (0)
858	# if defined(LOG_USE_C99)
859	# define _LogRelRemoveParentheseis(...) __VA_ARGS__
860	# define _LogRelIt(pvInst, fFlags, iGroup, ...) do { } while (0)
861	# endif
862	#endif /* !RTLOG_REL_ENABLED */
863
864
865	/** @def LogRel
866	* Level 1 logging.
867	*/
868	#define LogRel(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, a)
869
870	/** @def LogRel2
871	* Level 2 logging.
872	*/
873	#define LogRel2(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP, a)
874
875	/** @def LogRel3
876	* Level 3 logging.
877	*/
878	#define LogRel3(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP, a)
879
880	/** @def LogRel4
881	* Level 4 logging.
882	*/
883	#define LogRel4(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP, a)
884
885	/** @def LogRel5
886	* Level 5 logging.
887	*/
888	#define LogRel5(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP, a)
889
890	/** @def LogRel6
891	* Level 6 logging.
892	*/
893	#define LogRel6(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP, a)
894
895	/** @def LogRelFlow
896	* Logging of execution flow.
897	*/
898	#define LogRelFlow(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, a)
899
900	/** @def LogRelFunc
901	* Release logging. Prepends the given log message with the function name
902	* followed by a semicolon and space.
903	*/
904	#define LogRelFunc(a) \
905	do { LogRel((LOG_FN_FMT ": ", __PRETTY_FUNCTION__)); LogRel(a); } while (0)
906
907	/** @def LogRelThisFunc
908	* The same as LogRelFunc but for class functions (methods): the resulting log
909	* line is additionally prepended with a hex value of \|this\| pointer.
910	*/
911	#define LogRelThisFunc(a) \
912	do { LogRel(("{%p} " LOG_FN_FMT ": ", this, __PRETTY_FUNCTION__)); LogRel(a); } while (0)
913
914	/** @def LogRelLelik
915	* lelik logging.
916	*/
917	#define LogRelLelik(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LELIK, LOG_GROUP, a)
918
919	/** @def LogRelMichael
920	* michael logging.
921	*/
922	#define LogRelMichael(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_MICHAEL, LOG_GROUP, a)
923
924	/** @def LogRelDmik
925	* dmik logging.
926	*/
927	#define LogRelDmik(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_DMIK, LOG_GROUP, a)
928
929	/** @def LogRelSunlover
930	* sunlover logging.
931	*/
932	#define LogRelSunlover(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_SUNLOVER, LOG_GROUP, a)
933
934	/** @def LogRelAchim
935	* Achim logging.
936	*/
937	#define LogRelAchim(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_ACHIM, LOG_GROUP, a)
938
939	/** @def LogRelSander
940	* Sander logging.
941	*/
942	#define LogRelSander(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_SANDER, LOG_GROUP, a)
943
944	/** @def LogRelKlaus
945	* klaus logging.
946	*/
947	#define LogRelKlaus(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_KLAUS, LOG_GROUP, a)
948
949	/** @def LogRelFrank
950	* frank logging.
951	*/
952	#define LogRelFrank(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FRANK, LOG_GROUP, a)
953
954	/** @def LogRelBird
955	* bird logging.
956	*/
957	#define LogRelBird(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_BIRD, LOG_GROUP, a)
958
959	/** @def LogRelNoName
960	* NoName logging.
961	*/
962	#define LogRelNoName(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_NONAME, LOG_GROUP, a)
963
964
965	/** @def LogRelIsItEnabled
966	* Checks whether the specified logging group is enabled or not.
967	*/
968	#define LogRelIsItEnabled(pvInst, fFlags, iGroup) \
969	LogRelIsItEnabledInternal((pvInst), (unsigned)(iGroup), (unsigned)(fFlags))
970
971	/** @def LogRelIsEnabled
972	* Checks whether level 1 logging is enabled.
973	*/
974	#define LogRelIsEnabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP)
975
976	/** @def LogRelIs2Enabled
977	* Checks whether level 2 logging is enabled.
978	*/
979	#define LogRelIs2Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP)
980
981	/** @def LogRelIs3Enabled
982	* Checks whether level 3 logging is enabled.
983	*/
984	#define LogRelIs3Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP)
985
986	/** @def LogRelIs4Enabled
987	* Checks whether level 4 logging is enabled.
988	*/
989	#define LogRelIs4Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP)
990
991	/** @def LogRelIs5Enabled
992	* Checks whether level 5 logging is enabled.
993	*/
994	#define LogRelIs5Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP)
995
996	/** @def LogRelIs6Enabled
997	* Checks whether level 6 logging is enabled.
998	*/
999	#define LogRelIs6Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP)
1000
1001	/** @def LogRelIsFlowEnabled
1002	* Checks whether execution flow logging is enabled.
1003	*/
1004	#define LogRelIsFlowEnabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP)
1005
1006
1007	#ifndef IN_GC
1008	/**
1009	* Sets the default release logger instance.
1010	*
1011	* @returns The old default instance.
1012	* @param pLogger The new default release logger instance.
1013	*/
1014	RTDECL(PRTLOGGER) RTLogRelSetDefaultInstance(PRTLOGGER pLogger);
1015	#endif /* !IN_GC */
1016
1017	/**
1018	* Gets the default release logger instance.
1019	*
1020	* @returns Pointer to default release logger instance.
1021	* @returns NULL if no default release logger instance available.
1022	*/
1023	RTDECL(PRTLOGGER) RTLogRelDefaultInstance(void);
1024
1025	/** Internal worker function.
1026	* Don't call directly, use the LogRelIsItEnabled macro!
1027	*/
1028	DECLINLINE(bool) LogRelIsItEnabledInternal(void *pvInst, unsigned iGroup, unsigned fFlags)
1029	{
1030	register PRTLOGGER pLogger = (PRTLOGGER)pvInst ? (PRTLOGGER)pvInst : RTLogRelDefaultInstance();
1031	if (pLogger)
1032	{
1033	register unsigned fGrpFlags = pLogger->afGroups[(unsigned)iGroup < pLogger->cGroups ? (unsigned)iGroup : 0];
1034	if ((fGrpFlags & (fFlags \| RTLOGGRPFLAGS_ENABLED)) == (fFlags \| RTLOGGRPFLAGS_ENABLED))
1035	return true;
1036	}
1037	return false;
1038	}
1039
1040	/**
1041	* Write to a logger instance, defaulting to the release one.
1042	*
1043	* This function will check whether the instance, group and flags makes up a
1044	* logging kind which is currently enabled before writing anything to the log.
1045	*
1046	* @param pLogger Pointer to logger instance.
1047	* @param fFlags The logging flags.
1048	* @param iGroup The group.
1049	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1050	* only for internal usage!
1051	* @param pszFormat Format string.
1052	* @param ... Format arguments.
1053	* @remark This is a worker function for LogRelIt.
1054	*/
1055	RTDECL(void) RTLogRelLogger(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, ...);
1056
1057	/**
1058	* Write to a logger instance, defaulting to the release one.
1059	*
1060	* This function will check whether the instance, group and flags makes up a
1061	* logging kind which is currently enabled before writing anything to the log.
1062	*
1063	* @param pLogger Pointer to logger instance. If NULL the default release instance is attempted.
1064	* @param fFlags The logging flags.
1065	* @param iGroup The group.
1066	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1067	* only for internal usage!
1068	* @param pszFormat Format string.
1069	* @param args Format arguments.
1070	*/
1071	RTDECL(void) RTLogRelLoggerV(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
1072
1073	/**
1074	* printf like function for writing to the default release log.
1075	*
1076	* @param pszFormat Printf like format string.
1077	* @param ... Optional arguments as specified in pszFormat.
1078	*
1079	* @remark The API doesn't support formatting of floating point numbers at the moment.
1080	*/
1081	RTDECL(void) RTLogRelPrintf(const char *pszFormat, ...);
1082
1083	/**
1084	* vprintf like function for writing to the default release log.
1085	*
1086	* @param pszFormat Printf like format string.
1087	* @param args Optional arguments as specified in pszFormat.
1088	*
1089	* @remark The API doesn't support formatting of floating point numbers at the moment.
1090	*/
1091	RTDECL(void) RTLogRelPrintfV(const char *pszFormat, va_list args);
1092
1093
1094	/** @} */
1095
1096
1097
1098	/** @name COM port logging
1099	* {
1100	*/
1101
1102	#ifdef DOXYGEN_RUNNING
1103	# define LOG_TO_COM
1104	# define LOG_NO_COM
1105	#endif
1106
1107	/** @def LOG_TO_COM
1108	* Redirects the normal loging macros to the serial versions.
1109	*/
1110
1111	/** @def LOG_NO_COM
1112	* Disables all LogCom* macros.
1113	*/
1114
1115	/** @def LogCom
1116	* Generic logging to serial port.
1117	*/
1118	#if defined(LOG_ENABLED) && !defined(LOG_NO_COM)
1119	# define LogCom(a) RTLogComPrintf a
1120	#else
1121	# define LogCom(a) do { } while (0)
1122	#endif
1123
1124	/** @def LogComFlow
1125	* Logging to serial port of execution flow.
1126	*/
1127	#if defined(LOG_ENABLED) && defined(LOG_ENABLE_FLOW) && !defined(LOG_NO_COM)
1128	# define LogComFlow(a) RTLogComPrintf a
1129	#else
1130	# define LogComFlow(a) do { } while (0)
1131	#endif
1132
1133	#ifdef LOG_TO_COM
1134	# undef Log
1135	# define Log(a) LogCom(a)
1136	# undef LogFlow
1137	# define LogFlow(a) LogComFlow(a)
1138	#endif
1139
1140	/** @} */
1141
1142
1143	/** @name Backdoor Logging
1144	* @{
1145	*/
1146
1147	#ifdef DOXYGEN_RUNNING
1148	# define LOG_TO_BACKDOOR
1149	# define LOG_NO_BACKDOOR
1150	#endif
1151
1152	/** @def LOG_TO_BACKDOOR
1153	* Redirects the normal logging macros to the backdoor versions.
1154	*/
1155
1156	/** @def LOG_NO_BACKDOOR
1157	* Disables all LogBackdoor* macros.
1158	*/
1159
1160	/** @def LogBackdoor
1161	* Generic logging to the VBox backdoor via port I/O.
1162	*/
1163	#if defined(LOG_ENABLED) && !defined(LOG_NO_BACKDOOR)
1164	# define LogBackdoor(a) RTLogBackdoorPrintf a
1165	#else
1166	# define LogBackdoor(a) do { } while (0)
1167	#endif
1168
1169	/** @def LogBackdoorFlow
1170	* Logging of execution flow messages to the backdoor I/O port.
1171	*/
1172	#if defined(LOG_ENABLED) && !defined(LOG_NO_BACKDOOR)
1173	# define LogBackdoorFlow(a) RTLogBackdoorPrintf a
1174	#else
1175	# define LogBackdoorFlow(a) do { } while (0)
1176	#endif
1177
1178	/** @def LogRelBackdoor
1179	* Release logging to the VBox backdoor via port I/O.
1180	*/
1181	#if !defined(LOG_NO_BACKDOOR)
1182	# define LogRelBackdoor(a) RTLogBackdoorPrintf a
1183	#else
1184	# define LogRelBackdoor(a) do { } while (0)
1185	#endif
1186
1187	#ifdef LOG_TO_BACKDOOR
1188	# undef Log
1189	# define Log(a) LogBackdoor(a)
1190	# undef LogFlow
1191	# define LogFlow(a) LogBackdoorFlow(a)
1192	# undef LogRel
1193	# define LogRel(a) LogRelBackdoor(a)
1194	# if defined(LOG_USE_C99)
1195	# undef _LogIt
1196	# define _LogIt(pvInst, fFlags, iGroup, ...) LogBackdoor((__VA_ARGS__))
1197	# endif
1198	#endif
1199
1200	/** @} */
1201
1202
1203
1204	/**
1205	* Gets the default logger instance.
1206	*
1207	* @returns Pointer to default logger instance.
1208	* @returns NULL if no default logger instance available.
1209	*/
1210	RTDECL(PRTLOGGER) RTLogDefaultInstance(void);
1211
1212	#ifndef IN_GC
1213	/**
1214	* Sets the default logger instance.
1215	*
1216	* @returns The old default instance.
1217	* @param pLogger The new default logger instance.
1218	*/
1219	RTDECL(PRTLOGGER) RTLogSetDefaultInstance(PRTLOGGER pLogger);
1220	#endif /* !IN_GC */
1221
1222	#ifdef IN_RING0
1223	/**
1224	* Changes the default logger instance for the current thread.
1225	*
1226	* @returns IPRT status code.
1227	* @param pLogger The logger instance. Pass NULL for deregistration.
1228	* @param uKey Associated key for cleanup purposes. If pLogger is NULL,
1229	* all instances with this key will be deregistered. So in
1230	* order to only deregister the instance associated with the
1231	* current thread use 0.
1232	*/
1233	RTDECL(int) RTLogSetDefaultInstanceThread(PRTLOGGER pLogger, uintptr_t uKey);
1234	#endif /* IN_RING0 */
1235
1236
1237	#ifdef LOG_ENABLED
1238	/** Internal worker function.
1239	* Don't call directly, use the LogIsItEnabled macro!
1240	*/
1241	DECLINLINE(bool) LogIsItEnabledInternal(void *pvInst, unsigned iGroup, unsigned fFlags)
1242	{
1243	register PRTLOGGER pLogger = (PRTLOGGER)pvInst ? (PRTLOGGER)pvInst : RTLogDefaultInstance();
1244	if (pLogger)
1245	{
1246	register unsigned fGrpFlags = pLogger->afGroups[(unsigned)iGroup < pLogger->cGroups ? (unsigned)iGroup : 0];
1247	if ((fGrpFlags & (fFlags \| RTLOGGRPFLAGS_ENABLED)) == (fFlags \| RTLOGGRPFLAGS_ENABLED))
1248	return true;
1249	}
1250	return false;
1251	}
1252	#endif
1253
1254
1255	#ifndef IN_GC
1256	/**
1257	* Creates the default logger instance for a iprt users.
1258	*
1259	* Any user of the logging features will need to implement
1260	* this or use the generic dummy.
1261	*
1262	* @returns Pointer to the logger instance.
1263	*/
1264	RTDECL(PRTLOGGER) RTLogDefaultInit(void);
1265
1266	/**
1267	* Create a logger instance.
1268	*
1269	* @returns iprt status code.
1270	*
1271	* @param ppLogger Where to store the logger instance.
1272	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1273	* @param pszGroupSettings The initial group settings.
1274	* @param pszEnvVarBase Base name for the environment variables for this instance.
1275	* @param cGroups Number of groups in the array.
1276	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1277	* logger instance.
1278	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1279	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1280	* @param ... Format arguments.
1281	*/
1282	RTDECL(int) RTLogCreate(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1283	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1284	RTUINT fDestFlags, const char *pszFilenameFmt, ...);
1285
1286	/**
1287	* Create a logger instance.
1288	*
1289	* @returns iprt status code.
1290	*
1291	* @param ppLogger Where to store the logger instance.
1292	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1293	* @param pszGroupSettings The initial group settings.
1294	* @param pszEnvVarBase Base name for the environment variables for this instance.
1295	* @param cGroups Number of groups in the array.
1296	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1297	* logger instance.
1298	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1299	* @param pszErrorMsg A buffer which is filled with an error message if something fails. May be NULL.
1300	* @param cchErrorMsg The size of the error message buffer.
1301	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1302	* @param ... Format arguments.
1303	*/
1304	RTDECL(int) RTLogCreateEx(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1305	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1306	RTUINT fDestFlags, char pszErrorMsg, size_t cchErrorMsg, const char pszFilenameFmt, ...);
1307
1308	/**
1309	* Create a logger instance.
1310	*
1311	* @returns iprt status code.
1312	*
1313	* @param ppLogger Where to store the logger instance.
1314	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1315	* @param pszGroupSettings The initial group settings.
1316	* @param pszEnvVarBase Base name for the environment variables for this instance.
1317	* @param cGroups Number of groups in the array.
1318	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1319	* logger instance.
1320	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1321	* @param pszErrorMsg A buffer which is filled with an error message if something fails. May be NULL.
1322	* @param cchErrorMsg The size of the error message buffer.
1323	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1324	* @param args Format arguments.
1325	*/
1326	RTDECL(int) RTLogCreateExV(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1327	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1328	RTUINT fDestFlags, char pszErrorMsg, size_t cchErrorMsg, const char pszFilenameFmt, va_list args);
1329
1330	/**
1331	* Create a logger instance for singled threaded ring-0 usage.
1332	*
1333	* @returns iprt status code.
1334	*
1335	* @param pLogger Where to create the logger instance.
1336	* @param cbLogger The amount of memory available for the logger instance.
1337	* @param pfnLogger Pointer to logger wrapper function for the clone.
1338	* @param pfnFlush Pointer to flush function for the clone.
1339	* @param fFlags Logger instance flags for the clone, a combination of the RTLOGFLAGS_* values.
1340	* @param fDestFlags The destination flags.
1341	*/
1342	RTDECL(int) RTLogCreateForR0(PRTLOGGER pLogger, size_t cbLogger, PFNRTLOGGER pfnLogger, PFNRTLOGFLUSH pfnFlush, RTUINT fFlags, RTUINT fDestFlags);
1343
1344	/**
1345	* Destroys a logger instance.
1346	*
1347	* The instance is flushed and all output destinations closed (where applicable).
1348	*
1349	* @returns iprt status code.
1350	* @param pLogger The logger instance which close destroyed. NULL is fine.
1351	*/
1352	RTDECL(int) RTLogDestroy(PRTLOGGER pLogger);
1353
1354	/**
1355	* Create a logger instance clone for RC usage.
1356	*
1357	* @returns iprt status code.
1358	*
1359	* @param pLogger The logger instance to be cloned.
1360	* @param pLoggerGC Where to create the GC logger instance.
1361	* @param cbLoggerGC Amount of memory allocated to for the GC logger instance clone.
1362	* @param pfnLoggerGCPtr Pointer to logger wrapper function for this instance (GC Ptr).
1363	* @param pfnFlushGCPtr Pointer to flush function (GC Ptr).
1364	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1365	*/
1366	RTDECL(int) RTLogCloneRC(PRTLOGGER pLogger, PRTLOGGERRC pLoggerGC, size_t cbLoggerGC,
1367	RTRCPTR pfnLoggerGCPtr, RTRCPTR pfnFlushGCPtr, RTUINT fFlags);
1368
1369	/**
1370	* Flushes a GC logger instance to a HC logger.
1371	*
1372	* @returns iprt status code.
1373	* @param pLogger The HC logger instance to flush pLoggerGC to.
1374	* If NULL the default logger is used.
1375	* @param pLoggerGC The GC logger instance to flush.
1376	*/
1377	RTDECL(void) RTLogFlushGC(PRTLOGGER pLogger, PRTLOGGERRC pLoggerGC);
1378
1379	/**
1380	* Flushes the buffer in one logger instance onto another logger.
1381	*
1382	* @returns iprt status code.
1383	*
1384	* @param pSrcLogger The logger instance to flush.
1385	* @param pDstLogger The logger instance to flush onto.
1386	* If NULL the default logger will be used.
1387	*/
1388	RTDECL(void) RTLogFlushToLogger(PRTLOGGER pSrcLogger, PRTLOGGER pDstLogger);
1389
1390	/**
1391	* Copies the group settings and flags from logger instance to another.
1392	*
1393	* @returns IPRT status code.
1394	* @param pDstLogger The destination logger instance.
1395	* @param pSrcLogger The source logger instance. If NULL the default one is used.
1396	* @param fFlagsOr OR mask for the flags.
1397	* @param fFlagsAnd AND mask for the flags.
1398	*/
1399	RTDECL(int) RTLogCopyGroupsAndFlags(PRTLOGGER pDstLogger, PCRTLOGGER pSrcLogger, unsigned fFlagsOr, unsigned fFlagsAnd);
1400
1401	/**
1402	* Updates the group settings for the logger instance using the specified
1403	* specification string.
1404	*
1405	* @returns iprt status code.
1406	* Failures can safely be ignored.
1407	* @param pLogger Logger instance (NULL for default logger).
1408	* @param pszVar Value to parse.
1409	*/
1410	RTDECL(int) RTLogGroupSettings(PRTLOGGER pLogger, const char *pszVar);
1411	#endif /* !IN_GC */
1412
1413	/**
1414	* Updates the flags for the logger instance using the specified
1415	* specification string.
1416	*
1417	* @returns iprt status code.
1418	* Failures can safely be ignored.
1419	* @param pLogger Logger instance (NULL for default logger).
1420	* @param pszVar Value to parse.
1421	*/
1422	RTDECL(int) RTLogFlags(PRTLOGGER pLogger, const char *pszVar);
1423
1424	/**
1425	* Flushes the specified logger.
1426	*
1427	* @param pLogger The logger instance to flush.
1428	* If NULL the default instance is used. The default instance
1429	* will not be initialized by this call.
1430	*/
1431	RTDECL(void) RTLogFlush(PRTLOGGER pLogger);
1432
1433	/**
1434	* Write to a logger instance.
1435	*
1436	* @param pLogger Pointer to logger instance.
1437	* @param pvCallerRet Ignored.
1438	* @param pszFormat Format string.
1439	* @param ... Format arguments.
1440	*/
1441	RTDECL(void) RTLogLogger(PRTLOGGER pLogger, void pvCallerRet, const char pszFormat, ...);
1442
1443	/**
1444	* Write to a logger instance.
1445	*
1446	* @param pLogger Pointer to logger instance.
1447	* @param pszFormat Format string.
1448	* @param args Format arguments.
1449	*/
1450	RTDECL(void) RTLogLoggerV(PRTLOGGER pLogger, const char *pszFormat, va_list args);
1451
1452	/**
1453	* Write to a logger instance.
1454	*
1455	* This function will check whether the instance, group and flags makes up a
1456	* logging kind which is currently enabled before writing anything to the log.
1457	*
1458	* @param pLogger Pointer to logger instance. If NULL the default logger instance will be attempted.
1459	* @param fFlags The logging flags.
1460	* @param iGroup The group.
1461	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1462	* only for internal usage!
1463	* @param pszFormat Format string.
1464	* @param ... Format arguments.
1465	* @remark This is a worker function of LogIt.
1466	*/
1467	RTDECL(void) RTLogLoggerEx(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, ...);
1468
1469	/**
1470	* Write to a logger instance.
1471	*
1472	* This function will check whether the instance, group and flags makes up a
1473	* logging kind which is currently enabled before writing anything to the log.
1474	*
1475	* @param pLogger Pointer to logger instance. If NULL the default logger instance will be attempted.
1476	* @param fFlags The logging flags.
1477	* @param iGroup The group.
1478	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1479	* only for internal usage!
1480	* @param pszFormat Format string.
1481	* @param args Format arguments.
1482	*/
1483	RTDECL(void) RTLogLoggerExV(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
1484
1485	/**
1486	* printf like function for writing to the default log.
1487	*
1488	* @param pszFormat Printf like format string.
1489	* @param ... Optional arguments as specified in pszFormat.
1490	*
1491	* @remark The API doesn't support formatting of floating point numbers at the moment.
1492	*/
1493	RTDECL(void) RTLogPrintf(const char *pszFormat, ...);
1494
1495	/**
1496	* vprintf like function for writing to the default log.
1497	*
1498	* @param pszFormat Printf like format string.
1499	* @param args Optional arguments as specified in pszFormat.
1500	*
1501	* @remark The API doesn't support formatting of floating point numbers at the moment.
1502	*/
1503	RTDECL(void) RTLogPrintfV(const char *pszFormat, va_list args);
1504
1505
1506	#ifndef DECLARED_FNRTSTROUTPUT /* duplicated in iprt/string.h */
1507	#define DECLARED_FNRTSTROUTPUT
1508	/**
1509	* Output callback.
1510	*
1511	* @returns number of bytes written.
1512	* @param pvArg User argument.
1513	* @param pachChars Pointer to an array of utf-8 characters.
1514	* @param cbChars Number of bytes in the character array pointed to by pachChars.
1515	*/
1516	typedef DECLCALLBACK(size_t) FNRTSTROUTPUT(void pvArg, const char pachChars, size_t cbChars);
1517	/** Pointer to callback function. */
1518	typedef FNRTSTROUTPUT *PFNRTSTROUTPUT;
1519	#endif
1520
1521	/**
1522	* Partial vsprintf worker implementation.
1523	*
1524	* @returns number of bytes formatted.
1525	* @param pfnOutput Output worker.
1526	* Called in two ways. Normally with a string an it's length.
1527	* For termination, it's called with NULL for string, 0 for length.
1528	* @param pvArg Argument to output worker.
1529	* @param pszFormat Format string.
1530	* @param args Argument list.
1531	*/
1532	RTDECL(size_t) RTLogFormatV(PFNRTSTROUTPUT pfnOutput, void pvArg, const char pszFormat, va_list args);
1533
1534	/**
1535	* Write log buffer to COM port.
1536	*
1537	* @param pach Pointer to the buffer to write.
1538	* @param cb Number of bytes to write.
1539	*/
1540	RTDECL(void) RTLogWriteCom(const char *pach, size_t cb);
1541
1542	/**
1543	* Prints a formatted string to the serial port used for logging.
1544	*
1545	* @returns Number of bytes written.
1546	* @param pszFormat Format string.
1547	* @param ... Optional arguments specified in the format string.
1548	*/
1549	RTDECL(size_t) RTLogComPrintf(const char *pszFormat, ...);
1550
1551	/**
1552	* Prints a formatted string to the serial port used for logging.
1553	*
1554	* @returns Number of bytes written.
1555	* @param pszFormat Format string.
1556	* @param args Optional arguments specified in the format string.
1557	*/
1558	RTDECL(size_t) RTLogComPrintfV(const char *pszFormat, va_list args);
1559
1560
1561	#if 0 /* not implemented yet */
1562
1563	/** Indicates that the semaphores shall be used to notify the other
1564	* part about buffer changes. */
1565	#define LOGHOOKBUFFER_FLAGS_SEMAPHORED 1
1566
1567	/**
1568	* Log Hook Buffer.
1569	* Use to commuicate between the logger and a log consumer.
1570	*/
1571	typedef struct RTLOGHOOKBUFFER
1572	{
1573	/** Write pointer. */
1574	volatile void *pvWrite;
1575	/** Read pointer. */
1576	volatile void *pvRead;
1577	/** Buffer start. */
1578	void *pvStart;
1579	/** Buffer end (exclusive). */
1580	void *pvEnd;
1581	/** Signaling semaphore used by the writer to wait on a full buffer.
1582	* Only used when indicated in flags. */
1583	void *pvSemWriter;
1584	/** Signaling semaphore used by the read to wait on an empty buffer.
1585	* Only used when indicated in flags. */
1586	void *pvSemReader;
1587	/** Buffer flags. Current reserved and set to zero. */
1588	volatile unsigned fFlags;
1589	} RTLOGHOOKBUFFER;
1590	/** Pointer to a log hook buffer. */
1591	typedef RTLOGHOOKBUFFER *PRTLOGHOOKBUFFER;
1592
1593
1594	/**
1595	* Register a logging hook.
1596	*
1597	* This type of logging hooks are expecting different threads acting
1598	* producer and consumer. They share a circular buffer which have two
1599	* pointers one for each end. When the buffer is full there are two
1600	* alternatives (indicated by a buffer flag), either wait for the
1601	* consumer to get it's job done, or to write a generic message saying
1602	* buffer overflow.
1603	*
1604	* Since the waiting would need a signal semaphore, we'll skip that for now.
1605	*
1606	* @returns iprt status code.
1607	* @param pBuffer Pointer to a logger hook buffer.
1608	*/
1609	RTDECL(int) RTLogRegisterHook(PRTLOGGER pLogger, PRTLOGHOOKBUFFER pBuffer);
1610
1611	/**
1612	* Deregister a logging hook registerd with RTLogRegisterHook().
1613	*
1614	* @returns iprt status code.
1615	* @param pBuffer Pointer to a logger hook buffer.
1616	*/
1617	RTDECL(int) RTLogDeregisterHook(PRTLOGGER pLogger, PRTLOGHOOKBUFFER pBuffer);
1618
1619	#endif /* not implemented yet */
1620
1621
1622
1623	/**
1624	* Write log buffer to a debugger (RTLOGDEST_DEBUGGER).
1625	*
1626	* @param pach What to write.
1627	* @param cb How much to write.
1628	* @remark When linking statically, this function can be replaced by defining your own.
1629	*/
1630	RTDECL(void) RTLogWriteDebugger(const char *pach, size_t cb);
1631
1632	/**
1633	* Write log buffer to a user defined output stream (RTLOGDEST_USER).
1634	*
1635	* @param pach What to write.
1636	* @param cb How much to write.
1637	* @remark When linking statically, this function can be replaced by defining your own.
1638	*/
1639	RTDECL(void) RTLogWriteUser(const char *pach, size_t cb);
1640
1641	/**
1642	* Write log buffer to stdout (RTLOGDEST_STDOUT).
1643	*
1644	* @param pach What to write.
1645	* @param cb How much to write.
1646	* @remark When linking statically, this function can be replaced by defining your own.
1647	*/
1648	RTDECL(void) RTLogWriteStdOut(const char *pach, size_t cb);
1649
1650	/**
1651	* Write log buffer to stdout (RTLOGDEST_STDERR).
1652	*
1653	* @param pach What to write.
1654	* @param cb How much to write.
1655	* @remark When linking statically, this function can be replaced by defining your own.
1656	*/
1657	RTDECL(void) RTLogWriteStdErr(const char *pach, size_t cb);
1658
1659	#ifdef VBOX
1660
1661	/**
1662	* Prints a formatted string to the backdoor port.
1663	*
1664	* @returns Number of bytes written.
1665	* @param pszFormat Format string.
1666	* @param ... Optional arguments specified in the format string.
1667	*/
1668	RTDECL(size_t) RTLogBackdoorPrintf(const char *pszFormat, ...);
1669
1670	/**
1671	* Prints a formatted string to the backdoor port.
1672	*
1673	* @returns Number of bytes written.
1674	* @param pszFormat Format string.
1675	* @param args Optional arguments specified in the format string.
1676	*/
1677	RTDECL(size_t) RTLogBackdoorPrintfV(const char *pszFormat, va_list args);
1678
1679	#endif /* VBOX */
1680
1681	__END_DECLS
1682
1683	/** @} */
1684
1685	#endif
1686

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