log.h@ 2436

Last change on this file since 2436 was 628, checked in by vboxsync, 18 years ago
Implement log flag usecrlf, which translates LF line ending to CR/LF. Activate it by default for Windows builds, only for release log so far. Also fixed a couple of typos in comments.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 45.3 KB

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1	/** @file
2	* InnoTek Portable Runtime - Logging.
3	*/
4
5	/*
6	* Copyright (C) 2006 InnoTek Systemberatung 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(__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 COM port logging
676	* {
677	*/
678
679	#ifdef __DOXYGEN__
680	# define LOG_TO_COM
681	# define LOG_NO_COM
682	#endif
683
684	/** @def LOG_TO_COM
685	* Redirects the normal loging macros to the serial versions.
686	*/
687
688	/** @def LOG_NO_COM
689	* Disables all LogCom* macros.
690	*/
691
692	/** @def LogCom
693	* Generic logging to serial port.
694	*/
695	#if defined(LOG_ENABLED) && !defined(LOG_NO_COM)
696	# define LogCom(a) RTLogComPrintf a
697	#else
698	# define LogCom(a) do { } while (0)
699	#endif
700
701	/** @def LogComFlow
702	* Logging to serial port of execution flow.
703	*/
704	#if defined(LOG_ENABLED) && defined(LOG_ENABLE_FLOW) && !defined(LOG_NO_COM)
705	# define LogComFlow(a) RTLogComPrintf a
706	#else
707	# define LogComFlow(a) do { } while (0)
708	#endif
709
710	#ifdef LOG_TO_COM
711	# undef Log
712	# define Log(a) LogCom(a)
713	# undef LogFlow
714	# define LogFlow(a) LogComFlow(a)
715	#endif
716
717	/** @} */
718
719
720	/** @name Backdoor Logging
721	* @{
722	*/
723
724	#ifdef __DOXYGEN__
725	# define LOG_TO_BACKDOOR
726	# define LOG_NO_BACKDOOR
727	#endif
728
729	/** @def LOG_TO_BACKDOOR
730	* Redirects the normal logging macros to the backdoor versions.
731	*/
732
733	/** @def LOG_NO_BACKDOOR
734	* Disables all LogBackdoor* macros.
735	*/
736
737	/** @def LogBackdoor
738	* Generic logging to the VBox backdoor via port io.
739	*/
740	#if defined(LOG_ENABLED) && !defined(LOG_NO_BACKDOOR)
741	# define LogBackdoor(a) RTLogBackdoorPrintf a
742	#else
743	# define LogBackdoor(a) do { } while (0)
744	#endif
745
746	/** @def LogBackdoorFlow
747	* Logging of execution flow messages to the backdoor io port.
748	*/
749	#if defined(LOG_ENABLED) && !defined(LOG_NO_BACKDOOR)
750	# define LogBackdoorFlow(a) RTLogBackdoorPrintf a
751	#else
752	# define LogBackdoorFlow(a) do { } while (0)
753	#endif
754
755	#ifdef LOG_TO_BACKDOOR
756	# undef Log
757	# define Log(a) LogBackdoor(a)
758	# undef LogFlow
759	# define LogFlow(a) LogBackdoorFlow(a)
760	#endif
761
762	/** @} */
763
764
765	/** @name Release Logging
766	* @{
767	*/
768
769	/** @def LogIt
770	* Write to specific logger if group enabled.
771	*/
772	#if defined(__AMD64__) \|\| defined(LOG_USE_C99)
773	# define _LogRelRemoveParentheseis(...) __VA_ARGS__
774	# define _LogRelIt(pvInst, fFlags, iGroup, ...) RTLogLoggerEx((PRTLOGGER)pvInst, fFlags, iGroup, __VA_ARGS__)
775	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) \
776	do \
777	{ \
778	PRTLOGGER LogRelIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogRelDefaultInstance(); \
779	if (LogRelIt_pLogger) \
780	_LogRelIt(LogRelIt_pLogger, fFlags, iGroup, _LogRelRemoveParentheseis fmtargs); \
781	LogIt(LOG_INSTANCE, fFlags, iGroup, fmtargs); \
782	} while (0)
783	#else
784	# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) \
785	do \
786	{ \
787	PRTLOGGER LogRelIt_pLogger = (PRTLOGGER)(pvInst) ? (PRTLOGGER)(pvInst) : RTLogRelDefaultInstance(); \
788	if (LogRelIt_pLogger) \
789	{ \
790	unsigned LogIt_fFlags = LogRelIt_pLogger->afGroups[(unsigned)(iGroup) < LogRelIt_pLogger->cGroups ? (unsigned)(iGroup) : 0]; \
791	if ((LogIt_fFlags & ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) == ((fFlags) \| RTLOGGRPFLAGS_ENABLED)) \
792	LogRelIt_pLogger->pfnLogger fmtargs; \
793	} \
794	LogIt(LOG_INSTANCE, fFlags, iGroup, fmtargs); \
795	} while (0)
796	#endif
797
798
799	/** @def LogRel
800	* Level 1 logging.
801	*/
802	#define LogRel(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP, a)
803
804	/** @def LogRel2
805	* Level 2 logging.
806	*/
807	#define LogRel2(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP, a)
808
809	/** @def LogRel3
810	* Level 3 logging.
811	*/
812	#define LogRel3(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP, a)
813
814	/** @def LogRel4
815	* Level 4 logging.
816	*/
817	#define LogRel4(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP, a)
818
819	/** @def LogRel5
820	* Level 5 logging.
821	*/
822	#define LogRel5(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP, a)
823
824	/** @def LogRel6
825	* Level 6 logging.
826	*/
827	#define LogRel6(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP, a)
828
829	/** @def LogRelFlow
830	* Logging of execution flow.
831	*/
832	#define LogRelFlow(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP, a)
833
834	/** @def LogRelLelik
835	* lelik logging.
836	*/
837	#define LogRelLelik(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LELIK, LOG_GROUP, a)
838
839	/** @def LogRelMichael
840	* michael logging.
841	*/
842	#define LogRelMichael(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_MICHAEL, LOG_GROUP, a)
843
844	/** @def LogRelDmik
845	* dmik logging.
846	*/
847	#define LogRelDmik(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_DMIK, LOG_GROUP, a)
848
849	/** @def LogRelSunlover
850	* sunlover logging.
851	*/
852	#define LogRelSunlover(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_SUNLOVER, LOG_GROUP, a)
853
854	/** @def LogRelAchim
855	* Achim logging.
856	*/
857	#define LogRelAchim(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_ACHIM, LOG_GROUP, a)
858
859	/** @def LogRelSander
860	* Sander logging.
861	*/
862	#define LogRelSander(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_SANDER, LOG_GROUP, a)
863
864	/** @def LogRelKlaus
865	* klaus logging.
866	*/
867	#define LogRelKlaus(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_KLAUS, LOG_GROUP, a)
868
869	/** @def LogRelFrank
870	* frank logging.
871	*/
872	#define LogRelFrank(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FRANK, LOG_GROUP, a)
873
874	/** @def LogRelBird
875	* bird logging.
876	*/
877	#define LogRelBird(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_BIRD, LOG_GROUP, a)
878
879	/** @def LogRelNoName
880	* NoName logging.
881	*/
882	#define LogRelNoName(a) LogRelIt(LOG_REL_INSTANCE, RTLOGGRPFLAGS_NONAME, LOG_GROUP, a)
883
884
885	/** @def LogRelIsItEnabled
886	* Checks whether the specified logging group is enabled or not.
887	*/
888	#define LogRelIsItEnabled(pvInst, fFlags, iGroup) \
889	LogRelIsItEnabledInternal((pvInst), (unsigned)(iGroup), (unsigned)(fFlags))
890
891	/** @def LogRelIsEnabled
892	* Checks whether level 1 logging is enabled.
893	*/
894	#define LogRelIsEnabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP)
895
896	/** @def LogRelIs2Enabled
897	* Checks whether level 2 logging is enabled.
898	*/
899	#define LogRelIs2Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP)
900
901	/** @def LogRelIs3Enabled
902	* Checks whether level 3 logging is enabled.
903	*/
904	#define LogRelIs3Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_3, LOG_GROUP)
905
906	/** @def LogRelIs4Enabled
907	* Checks whether level 4 logging is enabled.
908	*/
909	#define LogRelIs4Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_4, LOG_GROUP)
910
911	/** @def LogRelIs5Enabled
912	* Checks whether level 5 logging is enabled.
913	*/
914	#define LogRelIs5Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_5, LOG_GROUP)
915
916	/** @def LogRelIs6Enabled
917	* Checks whether level 6 logging is enabled.
918	*/
919	#define LogRelIs6Enabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_LEVEL_6, LOG_GROUP)
920
921	/** @def LogRelIsFlowEnabled
922	* Checks whether execution flow logging is enabled.
923	*/
924	#define LogRelIsFlowEnabled() LogRelIsItEnabled(LOG_REL_INSTANCE, RTLOGGRPFLAGS_FLOW, LOG_GROUP)
925
926
927	#ifndef IN_GC
928	/**
929	* Sets the default release logger instance.
930	*
931	* @returns The old default instance.
932	* @param pLogger The new default release logger instance.
933	*/
934	RTDECL(PRTLOGGER) RTLogRelSetDefaultInstance(PRTLOGGER pLogger);
935	#endif /* !IN_GC */
936
937	/**
938	* Gets the default release logger instance.
939	*
940	* @returns Pointer to default release logger instance.
941	* @returns NULL if no default release logger instance available.
942	*/
943	RTDECL(PRTLOGGER) RTLogRelDefaultInstance(void);
944
945	/** Internal worker function.
946	* Don't call directly, use the LogRelIsItEnabled macro!
947	*/
948	DECLINLINE(bool) LogRelIsItEnabledInternal(void *pvInst, unsigned iGroup, unsigned fFlags)
949	{
950	register PRTLOGGER pLogger = (PRTLOGGER)pvInst ? (PRTLOGGER)pvInst : RTLogRelDefaultInstance();
951	if (pLogger)
952	{
953	register unsigned fGrpFlags = pLogger->afGroups[(unsigned)iGroup < pLogger->cGroups ? (unsigned)iGroup : 0];
954	if ((fGrpFlags & (fFlags \| RTLOGGRPFLAGS_ENABLED)) == (fFlags \| RTLOGGRPFLAGS_ENABLED))
955	return true;
956	}
957	return false;
958	}
959
960	/**
961	* Write to a logger instance, defaulting to the release one.
962	*
963	* This function will check whether the instance, group and flags makes up a
964	* logging kind which is currently enabled before writing anything to the log.
965	*
966	* @param pLogger Pointer to logger instance.
967	* @param fFlags The logging flags.
968	* @param iGroup The group.
969	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
970	* only for internal usage!
971	* @param pszFormat Format string.
972	* @param ... Format arguments.
973	* @remark This is a worker function for LogRelIt.
974	*/
975	RTDECL(void) RTLogRelLogger(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, ...);
976
977	/**
978	* Write to a logger instance, defaulting to the release one.
979	*
980	* This function will check whether the instance, group and flags makes up a
981	* logging kind which is currently enabled before writing anything to the log.
982	*
983	* @param pLogger Pointer to logger instance. If NULL the default release instance is attempted.
984	* @param fFlags The logging flags.
985	* @param iGroup The group.
986	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
987	* only for internal usage!
988	* @param pszFormat Format string.
989	* @param args Format arguments.
990	*/
991	RTDECL(void) RTLogRelLoggerV(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
992
993	/**
994	* printf like function for writing to the default release log.
995	*
996	* @param pszFormat Printf like format string.
997	* @param ... Optional arguments as specified in pszFormat.
998	*
999	* @remark The API doesn't support formatting of floating point numbers at the moment.
1000	*/
1001	RTDECL(void) RTLogRelPrintf(const char *pszFormat, ...);
1002
1003	/**
1004	* vprintf like function for writing to the default release log.
1005	*
1006	* @param pszFormat Printf like format string.
1007	* @param args Optional arguments as specified in pszFormat.
1008	*
1009	* @remark The API doesn't support formatting of floating point numbers at the moment.
1010	*/
1011	RTDECL(void) RTLogRelPrintfV(const char *pszFormat, va_list args);
1012
1013	/** @} */
1014
1015
1016	/**
1017	* Gets the default logger instance.
1018	*
1019	* @returns Pointer to default logger instance.
1020	* @returns NULL if no default logger instance available.
1021	*/
1022	RTDECL(PRTLOGGER) RTLogDefaultInstance(void);
1023
1024	#ifdef IN_RING0
1025	/**
1026	* Changes the default logger instance for the current thread.
1027	*
1028	* @returns IPRT status code.
1029	* @param pLogger The logger instance. Pass NULL for deregistration.
1030	* @param uKey Associated key for cleanup purposes. If pLogger is NULL,
1031	* all instances with this key will be deregistered. So in
1032	* order to only deregister the instance associated with the
1033	* current thread use 0.
1034	*/
1035	RTDECL(int) RTLogSetDefaultInstanceThread(PRTLOGGER pLogger, uintptr_t uKey);
1036	#endif /* IN_RING0 */
1037
1038
1039	#ifdef LOG_ENABLED
1040	/** Internal worker function.
1041	* Don't call directly, use the LogIsItEnabled macro!
1042	*/
1043	DECLINLINE(bool) LogIsItEnabledInternal(void *pvInst, unsigned iGroup, unsigned fFlags)
1044	{
1045	register PRTLOGGER pLogger = (PRTLOGGER)pvInst ? (PRTLOGGER)pvInst : RTLogDefaultInstance();
1046	if (pLogger)
1047	{
1048	register unsigned fGrpFlags = pLogger->afGroups[(unsigned)iGroup < pLogger->cGroups ? (unsigned)iGroup : 0];
1049	if ((fGrpFlags & (fFlags \| RTLOGGRPFLAGS_ENABLED)) == (fFlags \| RTLOGGRPFLAGS_ENABLED))
1050	return true;
1051	}
1052	return false;
1053	}
1054	#endif
1055
1056
1057	#ifndef IN_GC
1058	/**
1059	* Creates the default logger instance for a iprt users.
1060	*
1061	* Any user of the logging features will need to implement
1062	* this or use the generic dummy.
1063	*
1064	* @returns Pointer to the logger instance.
1065	*/
1066	RTDECL(PRTLOGGER) RTLogDefaultInit(void);
1067
1068	/**
1069	* Create a logger instance.
1070	*
1071	* @returns iprt status code.
1072	*
1073	* @param ppLogger Where to store the logger instance.
1074	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1075	* @param pszGroupSettings The initial group settings.
1076	* @param pszEnvVarBase Base name for the environment variables for this instance.
1077	* @param cGroups Number of groups in the array.
1078	* @param papszGroups Pointer to array of groups. This must stick around for the life of the
1079	* logger instance.
1080	* @param fDestFlags The destination flags. RTLOGDEST_FILE is ORed if pszFilenameFmt specified.
1081	* @param pszFilenameFmt Log filename format string. Standard RTStrFormat().
1082	* @param ... Format arguments.
1083	*/
1084	RTDECL(int) RTLogCreate(PRTLOGGER ppLogger, RTUINT fFlags, const char pszGroupSettings,
1085	const char pszEnvVarBase, unsigned cGroups, const char const * papszGroups,
1086	RTUINT fDestFlags, const char *pszFilenameFmt, ...);
1087
1088	/**
1089	* Create a logger instance for singled threaded ring-0 usage.
1090	*
1091	* @returns iprt status code.
1092	*
1093	* @param pLogger Where to create the logger instance.
1094	* @param cbLogger The amount of memory available for the logger instance.
1095	* @param pfnLogger Pointer to logger wrapper function for the clone.
1096	* @param pfnFlush Pointer to flush function for the clone.
1097	* @param fFlags Logger instance flags for the clone, a combination of the RTLOGFLAGS_* values.
1098	* @param fDestFlags The destination flags.
1099	*/
1100	RTDECL(int) RTLogCreateForR0(PRTLOGGER pLogger, size_t cbLogger, PFNRTLOGGER pfnLogger, PFNRTLOGFLUSH pfnFlush, RTUINT fFlags, RTUINT fDestFlags);
1101
1102	/**
1103	* Destroys a logger instance.
1104	*
1105	* The instance is flushed and all output destinations closed (where applicable).
1106	*
1107	* @returns iprt status code.
1108	* @param pLogger The logger instance which close destroyed.
1109	*/
1110	RTDECL(int) RTLogDestroy(PRTLOGGER pLogger);
1111
1112	/**
1113	* Create a logger instance clone for GC usage.
1114	*
1115	* @returns iprt status code.
1116	*
1117	* @param pLogger The logger instance to be cloned.
1118	* @param pLoggerGC Where to create the GC logger instance.
1119	* @param cbLoggerGC Amount of memory allocated to for the GC logger instance clone.
1120	* @param pfnLoggerGCPtr Pointer to logger wrapper function for this instance (GC Ptr).
1121	* @param pfnFlushGCPtr Pointer to flush function (GC Ptr).
1122	* @param fFlags Logger instance flags, a combination of the RTLOGFLAGS_* values.
1123	*/
1124	RTDECL(int) RTLogCloneGC(PRTLOGGER pLogger, PRTLOGGERGC pLoggerGC, size_t cbLoggerGC,
1125	RTGCPTR pfnLoggerGCPtr, RTGCPTR pfnFlushGCPtr, RTUINT fFlags);
1126
1127	/**
1128	* Flushes a GC logger instance to a HC logger.
1129	*
1130	* @returns iprt status code.
1131	* @param pLogger The HC logger instance to flush pLoggerGC to.
1132	* If NULL the default logger is used.
1133	* @param pLoggerGC The GC logger instance to flush.
1134	*/
1135	RTDECL(void) RTLogFlushGC(PRTLOGGER pLogger, PRTLOGGERGC pLoggerGC);
1136
1137	/**
1138	* Flushes the buffer in one logger instance onto another logger.
1139	*
1140	* @returns iprt status code.
1141	*
1142	* @param pSrcLogger The logger instance to flush.
1143	* @param pDstLogger The logger instance to flush onto.
1144	* If NULL the default logger will be used.
1145	*/
1146	RTDECL(void) RTLogFlushToLogger(PRTLOGGER pSrcLogger, PRTLOGGER pDstLogger);
1147
1148	/**
1149	* Copies the group settings and flags from logger instance to another.
1150	*
1151	* @returns IPRT status code.
1152	* @param pDstLogger The destination logger instance.
1153	* @param pSrcLogger The source logger instance. If NULL the default one is used.
1154	* @param fFlagsOr OR mask for the flags.
1155	* @param fFlagsAnd AND mask for the flags.
1156	*/
1157	RTDECL(int) RTLogCopyGroupsAndFlags(PRTLOGGER pDstLogger, PCRTLOGGER pSrcLogger, unsigned fFlagsOr, unsigned fFlagsAnd);
1158
1159	/**
1160	* Updates the group settings for the logger instance using the specified
1161	* specification string.
1162	*
1163	* @returns iprt status code.
1164	* Failures can safely be ignored.
1165	* @param pLogger Logger instance (NULL for default logger).
1166	* @param pszVar Value to parse.
1167	*/
1168	RTDECL(int) RTLogGroupSettings(PRTLOGGER pLogger, const char *pszVar);
1169	#endif /* !IN_GC */
1170
1171	/**
1172	* Updates the flags for the logger instance using the specified
1173	* specification string.
1174	*
1175	* @returns iprt status code.
1176	* Failures can safely be ignored.
1177	* @param pLogger Logger instance (NULL for default logger).
1178	* @param pszVar Value to parse.
1179	*/
1180	RTDECL(int) RTLogFlags(PRTLOGGER pLogger, const char *pszVar);
1181
1182	/**
1183	* Flushes the specified logger.
1184	*
1185	* @param pLogger The logger instance to flush.
1186	* If NULL the default instance is used. The default instance
1187	* will not be initialized by this call.
1188	*/
1189	RTDECL(void) RTLogFlush(PRTLOGGER pLogger);
1190
1191	/**
1192	* Write to a logger instance.
1193	*
1194	* @param pLogger Pointer to logger instance.
1195	* @param pvCallerRet Ignored.
1196	* @param pszFormat Format string.
1197	* @param ... Format arguments.
1198	*/
1199	RTDECL(void) RTLogLogger(PRTLOGGER pLogger, void pvCallerRet, const char pszFormat, ...);
1200
1201	/**
1202	* Write to a logger instance.
1203	*
1204	* @param pLogger Pointer to logger instance.
1205	* @param pszFormat Format string.
1206	* @param args Format arguments.
1207	*/
1208	RTDECL(void) RTLogLoggerV(PRTLOGGER pLogger, const char *pszFormat, va_list args);
1209
1210	/**
1211	* Write to a logger instance.
1212	*
1213	* This function will check whether the instance, group and flags makes up a
1214	* logging kind which is currently enabled before writing anything to the log.
1215	*
1216	* @param pLogger Pointer to logger instance. If NULL the default logger instance will be attempted.
1217	* @param fFlags The logging flags.
1218	* @param iGroup The group.
1219	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1220	* only for internal usage!
1221	* @param pszFormat Format string.
1222	* @param ... Format arguments.
1223	* @remark This is a worker function of LogIt.
1224	*/
1225	RTDECL(void) RTLogLoggerEx(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, ...);
1226
1227	/**
1228	* Write to a logger instance.
1229	*
1230	* This function will check whether the instance, group and flags makes up a
1231	* logging kind which is currently enabled before writing anything to the log.
1232	*
1233	* @param pLogger Pointer to logger instance. If NULL the default logger instance will be attempted.
1234	* @param fFlags The logging flags.
1235	* @param iGroup The group.
1236	* The value ~0U is reserved for compatability with RTLogLogger[V] and is
1237	* only for internal usage!
1238	* @param pszFormat Format string.
1239	* @param args Format arguments.
1240	*/
1241	RTDECL(void) RTLogLoggerExV(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
1242
1243	/**
1244	* printf like function for writing to the default log.
1245	*
1246	* @param pszFormat Printf like format string.
1247	* @param ... Optional arguments as specified in pszFormat.
1248	*
1249	* @remark The API doesn't support formatting of floating point numbers at the moment.
1250	*/
1251	RTDECL(void) RTLogPrintf(const char *pszFormat, ...);
1252
1253	/**
1254	* vprintf like function for writing to the default log.
1255	*
1256	* @param pszFormat Printf like format string.
1257	* @param args Optional arguments as specified in pszFormat.
1258	*
1259	* @remark The API doesn't support formatting of floating point numbers at the moment.
1260	*/
1261	RTDECL(void) RTLogPrintfV(const char *pszFormat, va_list args);
1262
1263
1264	#ifndef DECLARED_FNRTSTROUTPUT /* duplicated in iprt/string.h */
1265	#define DECLARED_FNRTSTROUTPUT
1266	/**
1267	* Output callback.
1268	*
1269	* @returns number of bytes written.
1270	* @param pvArg User argument.
1271	* @param pachChars Pointer to an array of utf-8 characters.
1272	* @param cbChars Number of bytes in the character array pointed to by pachChars.
1273	*/
1274	typedef DECLCALLBACK(size_t) FNRTSTROUTPUT(void pvArg, const char pachChars, size_t cbChars);
1275	/** Pointer to callback function. */
1276	typedef FNRTSTROUTPUT *PFNRTSTROUTPUT;
1277	#endif
1278
1279	/**
1280	* Partial vsprintf worker implementation.
1281	*
1282	* @returns number of bytes formatted.
1283	* @param pfnOutput Output worker.
1284	* Called in two ways. Normally with a string an it's length.
1285	* For termination, it's called with NULL for string, 0 for length.
1286	* @param pvArg Argument to output worker.
1287	* @param pszFormat Format string.
1288	* @param args Argument list.
1289	*/
1290	RTDECL(size_t) RTLogFormatV(PFNRTSTROUTPUT pfnOutput, void pvArg, const char pszFormat, va_list args);
1291
1292	/**
1293	* Write log buffer to COM port.
1294	*
1295	* @param pach Pointer to the buffer to write.
1296	* @param cb Number of bytes to write.
1297	*/
1298	RTDECL(void) RTLogWriteCom(const char *pach, size_t cb);
1299
1300	/**
1301	* Prints a formatted string to the serial port used for logging.
1302	*
1303	* @returns Number of bytes written.
1304	* @param pszFormat Format string.
1305	* @param ... Optional arguments specified in the format string.
1306	*/
1307	RTDECL(size_t) RTLogComPrintf(const char *pszFormat, ...);
1308
1309	/**
1310	* Prints a formatted string to the serial port used for logging.
1311	*
1312	* @returns Number of bytes written.
1313	* @param pszFormat Format string.
1314	* @param args Optional arguments specified in the format string.
1315	*/
1316	RTDECL(size_t) RTLogComPrintfV(const char *pszFormat, va_list args);
1317
1318
1319	#if 0 /* not implemented yet */
1320
1321	/** Indicates that the semaphores shall be used to notify the other
1322	* part about buffer changes. */
1323	#define LOGHOOKBUFFER_FLAGS_SEMAPHORED 1
1324
1325	/**
1326	* Log Hook Buffer.
1327	* Use to commuicate between the logger and a log consumer.
1328	*/
1329	typedef struct RTLOGHOOKBUFFER
1330	{
1331	/** Write pointer. */
1332	volatile void *pvWrite;
1333	/** Read pointer. */
1334	volatile void *pvRead;
1335	/** Buffer start. */
1336	void *pvStart;
1337	/** Buffer end (exclusive). */
1338	void *pvEnd;
1339	/** Signaling semaphore used by the writer to wait on a full buffer.
1340	* Only used when indicated in flags. */
1341	void *pvSemWriter;
1342	/** Signaling semaphore used by the read to wait on an empty buffer.
1343	* Only used when indicated in flags. */
1344	void *pvSemReader;
1345	/** Buffer flags. Current reserved and set to zero. */
1346	volatile unsigned fFlags;
1347	} RTLOGHOOKBUFFER;
1348	/** Pointer to a log hook buffer. */
1349	typedef RTLOGHOOKBUFFER *PRTLOGHOOKBUFFER;
1350
1351
1352	/**
1353	* Register a logging hook.
1354	*
1355	* This type of logging hooks are expecting different threads acting
1356	* producer and consumer. They share a circular buffer which have two
1357	* pointers one for each end. When the buffer is full there are two
1358	* alternatives (indicated by a buffer flag), either wait for the
1359	* consumer to get it's job done, or to write a generic message saying
1360	* buffer overflow.
1361	*
1362	* Since the waiting would need a signal semaphore, we'll skip that for now.
1363	*
1364	* @returns iprt status code.
1365	* @param pBuffer Pointer to a logger hook buffer.
1366	*/
1367	RTDECL(int) RTLogRegisterHook(PRTLOGGER pLogger, PRTLOGHOOKBUFFER pBuffer);
1368
1369	/**
1370	* Deregister a logging hook registerd with RTLogRegisterHook().
1371	*
1372	* @returns iprt status code.
1373	* @param pBuffer Pointer to a logger hook buffer.
1374	*/
1375	RTDECL(int) RTLogDeregisterHook(PRTLOGGER pLogger, PRTLOGHOOKBUFFER pBuffer);
1376
1377	#endif /* not implemented yet */
1378
1379
1380
1381	/**
1382	* Write log buffer to a debugger (RTLOGDEST_DEBUGGER).
1383	*
1384	* @param pach What to write.
1385	* @param cb How much to write.
1386	* @remark When linking statically, this function can be replaced by defining your own.
1387	*/
1388	RTDECL(void) RTLogWriteDebugger(const char *pach, size_t cb);
1389
1390	/**
1391	* Write log buffer to a user defined output stream (RTLOGDEST_USER).
1392	*
1393	* @param pach What to write.
1394	* @param cb How much to write.
1395	* @remark When linking statically, this function can be replaced by defining your own.
1396	*/
1397	RTDECL(void) RTLogWriteUser(const char *pach, size_t cb);
1398
1399	/**
1400	* Write log buffer to stdout (RTLOGDEST_STDOUT).
1401	*
1402	* @param pach What to write.
1403	* @param cb How much to write.
1404	* @remark When linking statically, this function can be replaced by defining your own.
1405	*/
1406	RTDECL(void) RTLogWriteStdOut(const char *pach, size_t cb);
1407
1408	/**
1409	* Write log buffer to stdout (RTLOGDEST_STDERR).
1410	*
1411	* @param pach What to write.
1412	* @param cb How much to write.
1413	* @remark When linking statically, this function can be replaced by defining your own.
1414	*/
1415	RTDECL(void) RTLogWriteStdErr(const char *pach, size_t cb);
1416
1417
1418	__END_DECLS
1419
1420	/** @} */
1421
1422	#endif
1423

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source: vbox/trunk/include/iprt/log.h@ 2436

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