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1/////////////////////////////////////////////////////////////////////////////
2// Name: log.cpp
3// Purpose: Assorted wxLogXXX functions, and wxLog (sink for logs)
4// Author: Vadim Zeitlin
5// Modified by:
6// Created: 29/01/98
7// RCS-ID: $Id$
8// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
9// Licence: wxWindows license
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20#ifdef __GNUG__
21 #pragma implementation "log.h"
22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
28 #pragma hdrstop
29#endif
30
31// wxWindows
32#ifndef WX_PRECOMP
33 #include "wx/string.h"
34 #include "wx/intl.h"
35 #include "wx/app.h"
36
37 #if wxUSE_GUI
38 #include "wx/window.h"
39 #include "wx/msgdlg.h"
40 #ifdef __WXMSW__
41 #include "wx/msw/private.h"
42 #endif
43 #endif
44#endif //WX_PRECOMP
45
46#include "wx/file.h"
47#include "wx/textfile.h"
48#include "wx/utils.h"
49#include "wx/wxchar.h"
50#include "wx/log.h"
51#include "wx/thread.h"
52
53#if wxUSE_LOG
54
55// other standard headers
56#include <errno.h>
57#include <stdlib.h>
58#include <time.h>
59
60#if defined(__WXMSW__)
61 #include "wx/msw/private.h" // includes windows.h for OutputDebugString
62#endif
63
64#if defined(__WXMAC__)
65 #include "wx/mac/private.h" // includes mac headers
66#endif
67
68// ----------------------------------------------------------------------------
69// non member functions
70// ----------------------------------------------------------------------------
71
72// define this to enable wrapping of log messages
73//#define LOG_PRETTY_WRAP
74
75#ifdef LOG_PRETTY_WRAP
76 static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz);
77#endif
78
79// ============================================================================
80// implementation
81// ============================================================================
82
83// ----------------------------------------------------------------------------
84// globals
85// ----------------------------------------------------------------------------
86
87// log functions can't allocate memory (LogError("out of memory...") should
88// work!), so we use a static buffer for all log messages
89#define LOG_BUFFER_SIZE (4096)
90
91// static buffer for error messages
92static wxChar s_szBuf[LOG_BUFFER_SIZE];
93
94#if wxUSE_THREADS
95
96// the critical section protecting the static buffer
97static wxCriticalSection gs_csLogBuf;
98
99#endif // wxUSE_THREADS
100
101// return true if we have a non NULL non disabled log target
102static inline bool IsLoggingEnabled()
103{
104 return wxLog::IsEnabled() && (wxLog::GetActiveTarget() != NULL);
105}
106
107// ----------------------------------------------------------------------------
108// implementation of Log functions
109//
110// NB: unfortunately we need all these distinct functions, we can't make them
111// macros and not all compilers inline vararg functions.
112// ----------------------------------------------------------------------------
113
114// generic log function
115void wxVLogGeneric(wxLogLevel level, const wxChar *szFormat, va_list argptr)
116{
117 if ( IsLoggingEnabled() ) {
118 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
119
120 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
121
122 wxLog::OnLog(level, s_szBuf, time(NULL));
123 }
124}
125
126void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...)
127{
128 va_list argptr;
129 va_start(argptr, szFormat);
130 wxVLogGeneric(level, szFormat, argptr);
131 va_end(argptr);
132}
133
134#define IMPLEMENT_LOG_FUNCTION(level) \
135 void wxVLog##level(const wxChar *szFormat, va_list argptr) \
136 { \
137 if ( IsLoggingEnabled() ) { \
138 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); \
139 \
140 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); \
141 \
142 wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL)); \
143 } \
144 } \
145 void wxLog##level(const wxChar *szFormat, ...) \
146 { \
147 va_list argptr; \
148 va_start(argptr, szFormat); \
149 wxVLog##level(szFormat, argptr); \
150 va_end(argptr); \
151 }
152
153IMPLEMENT_LOG_FUNCTION(Error)
154IMPLEMENT_LOG_FUNCTION(Warning)
155IMPLEMENT_LOG_FUNCTION(Message)
156IMPLEMENT_LOG_FUNCTION(Info)
157IMPLEMENT_LOG_FUNCTION(Status)
158
159// fatal errors can't be suppressed nor handled by the custom log target and
160// always terminate the program
161void wxVLogFatalError(const wxChar *szFormat, va_list argptr)
162{
163 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
164
165#if wxUSE_GUI
166 wxMessageBox(s_szBuf, _("Fatal Error"), wxID_OK | wxICON_STOP);
167#else
168 fprintf(stderr, _("Fatal error: %s\n"), s_szBuf);
169#endif
170
171 abort();
172}
173
174void wxLogFatalError(const wxChar *szFormat, ...)
175{
176 va_list argptr;
177 va_start(argptr, szFormat);
178 wxVLogFatalError(szFormat, argptr);
179 va_end(argptr);
180}
181
182// same as info, but only if 'verbose' mode is on
183void wxVLogVerbose(const wxChar *szFormat, va_list argptr)
184{
185 if ( IsLoggingEnabled() ) {
186 wxLog *pLog = wxLog::GetActiveTarget();
187 if ( pLog != NULL && pLog->GetVerbose() ) {
188 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
189
190 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
191
192 wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL));
193 }
194 }
195}
196
197void wxLogVerbose(const wxChar *szFormat, ...)
198{
199 va_list argptr;
200 va_start(argptr, szFormat);
201 wxVLogVerbose(szFormat, argptr);
202 va_end(argptr);
203}
204
205// debug functions
206#ifdef __WXDEBUG__
207#define IMPLEMENT_LOG_DEBUG_FUNCTION(level) \
208 void wxVLog##level(const wxChar *szFormat, va_list argptr) \
209 { \
210 if ( IsLoggingEnabled() ) { \
211 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); \
212 \
213 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); \
214 \
215 wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL)); \
216 } \
217 } \
218 void wxLog##level(const wxChar *szFormat, ...) \
219 { \
220 va_list argptr; \
221 va_start(argptr, szFormat); \
222 wxVLog##level(szFormat, argptr); \
223 va_end(argptr); \
224 }
225
226 void wxVLogTrace(const wxChar *mask, const wxChar *szFormat, va_list argptr)
227 {
228 if ( IsLoggingEnabled() && wxLog::IsAllowedTraceMask(mask) ) {
229 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
230
231 wxChar *p = s_szBuf;
232 size_t len = WXSIZEOF(s_szBuf);
233 wxStrncpy(s_szBuf, _T("("), len);
234 len -= 1; // strlen("(")
235 p += 1;
236 wxStrncat(p, mask, len);
237 size_t lenMask = wxStrlen(mask);
238 len -= lenMask;
239 p += lenMask;
240
241 wxStrncat(p, _T(") "), len);
242 len -= 2;
243 p += 2;
244
245 wxVsnprintf(p, len, szFormat, argptr);
246
247 wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
248 }
249 }
250
251 void wxLogTrace(const wxChar *mask, const wxChar *szFormat, ...)
252 {
253 va_list argptr;
254 va_start(argptr, szFormat);
255 wxVLogTrace(mask, szFormat, argptr);
256 va_end(argptr);
257 }
258
259 void wxVLogTrace(wxTraceMask mask, const wxChar *szFormat, va_list argptr)
260 {
261 // we check that all of mask bits are set in the current mask, so
262 // that wxLogTrace(wxTraceRefCount | wxTraceOle) will only do something
263 // if both bits are set.
264 if ( IsLoggingEnabled() && ((wxLog::GetTraceMask() & mask) == mask) ) {
265 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
266
267 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
268
269 wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
270 }
271 }
272
273 void wxLogTrace(wxTraceMask mask, const wxChar *szFormat, ...)
274 {
275 va_list argptr;
276 va_start(argptr, szFormat);
277 wxVLogTrace(mask, szFormat, argptr);
278 va_end(argptr);
279 }
280
281#else // release
282 #define IMPLEMENT_LOG_DEBUG_FUNCTION(level)
283#endif
284
285IMPLEMENT_LOG_DEBUG_FUNCTION(Debug)
286IMPLEMENT_LOG_DEBUG_FUNCTION(Trace)
287
288// wxLogSysError: one uses the last error code, for other you must give it
289// explicitly
290
291// common part of both wxLogSysError
292void wxLogSysErrorHelper(long lErrCode)
293{
294 wxChar szErrMsg[LOG_BUFFER_SIZE / 2];
295 wxSnprintf(szErrMsg, WXSIZEOF(szErrMsg),
296 _(" (error %ld: %s)"), lErrCode, wxSysErrorMsg(lErrCode));
297 wxStrncat(s_szBuf, szErrMsg, WXSIZEOF(s_szBuf) - wxStrlen(s_szBuf));
298
299 wxLog::OnLog(wxLOG_Error, s_szBuf, time(NULL));
300}
301
302void WXDLLEXPORT wxVLogSysError(const wxChar *szFormat, va_list argptr)
303{
304 if ( IsLoggingEnabled() ) {
305 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
306
307 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
308
309 wxLogSysErrorHelper(wxSysErrorCode());
310 }
311}
312
313void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...)
314{
315 va_list argptr;
316 va_start(argptr, szFormat);
317 wxVLogSysError(szFormat, argptr);
318 va_end(argptr);
319}
320
321void WXDLLEXPORT wxVLogSysError(long lErrCode, const wxChar *szFormat, va_list argptr)
322{
323 if ( IsLoggingEnabled() ) {
324 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
325
326 wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
327
328 wxLogSysErrorHelper(lErrCode);
329 }
330}
331
332void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
333{
334 va_list argptr;
335 va_start(argptr, szFormat);
336 wxVLogSysError(lErrCode, szFormat, argptr);
337 va_end(argptr);
338}
339
340// ----------------------------------------------------------------------------
341// wxLog class implementation
342// ----------------------------------------------------------------------------
343
344wxLog::wxLog()
345{
346 m_bHasMessages = FALSE;
347}
348
349wxLog *wxLog::GetActiveTarget()
350{
351 if ( ms_bAutoCreate && ms_pLogger == NULL ) {
352 // prevent infinite recursion if someone calls wxLogXXX() from
353 // wxApp::CreateLogTarget()
354 static bool s_bInGetActiveTarget = FALSE;
355 if ( !s_bInGetActiveTarget ) {
356 s_bInGetActiveTarget = TRUE;
357
358 // ask the application to create a log target for us
359 if ( wxTheApp != NULL )
360 ms_pLogger = wxTheApp->CreateLogTarget();
361 else
362 ms_pLogger = new wxLogStderr;
363
364 s_bInGetActiveTarget = FALSE;
365
366 // do nothing if it fails - what can we do?
367 }
368 }
369
370 return ms_pLogger;
371}
372
373wxLog *wxLog::SetActiveTarget(wxLog *pLogger)
374{
375 if ( ms_pLogger != NULL ) {
376 // flush the old messages before changing because otherwise they might
377 // get lost later if this target is not restored
378 ms_pLogger->Flush();
379 }
380
381 wxLog *pOldLogger = ms_pLogger;
382 ms_pLogger = pLogger;
383
384 return pOldLogger;
385}
386
387void wxLog::DontCreateOnDemand()
388{
389 ms_bAutoCreate = FALSE;
390
391 // this is usually called at the end of the program and we assume that it
392 // is *always* called at the end - so we free memory here to avoid false
393 // memory leak reports from wxWin memory tracking code
394 ClearTraceMasks();
395}
396
397void wxLog::RemoveTraceMask(const wxString& str)
398{
399 int index = ms_aTraceMasks.Index(str);
400 if ( index != wxNOT_FOUND )
401 ms_aTraceMasks.Remove((size_t)index);
402}
403
404void wxLog::ClearTraceMasks()
405{
406 ms_aTraceMasks.Clear();
407}
408
409void wxLog::TimeStamp(wxString *str)
410{
411 if ( ms_timestamp )
412 {
413 wxChar buf[256];
414 time_t timeNow;
415 (void)time(&timeNow);
416 wxStrftime(buf, WXSIZEOF(buf), ms_timestamp, localtime(&timeNow));
417
418 str->Empty();
419 *str << buf << wxT(": ");
420 }
421}
422
423void wxLog::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
424{
425 switch ( level ) {
426 case wxLOG_FatalError:
427 DoLogString(wxString(_("Fatal error: ")) + szString, t);
428 DoLogString(_("Program aborted."), t);
429 Flush();
430 abort();
431 break;
432
433 case wxLOG_Error:
434 DoLogString(wxString(_("Error: ")) + szString, t);
435 break;
436
437 case wxLOG_Warning:
438 DoLogString(wxString(_("Warning: ")) + szString, t);
439 break;
440
441 case wxLOG_Info:
442 if ( GetVerbose() )
443 case wxLOG_Message:
444 case wxLOG_Status:
445 default: // log unknown log levels too
446 DoLogString(szString, t);
447 break;
448
449 case wxLOG_Trace:
450 case wxLOG_Debug:
451#ifdef __WXDEBUG__
452 {
453 wxString msg = level == wxLOG_Trace ? wxT("Trace: ")
454 : wxT("Debug: ");
455 msg << szString;
456 DoLogString(msg, t);
457 }
458#endif // Debug
459 break;
460 }
461}
462
463void wxLog::DoLogString(const wxChar *WXUNUSED(szString), time_t WXUNUSED(t))
464{
465 wxFAIL_MSG(wxT("DoLogString must be overriden if it's called."));
466}
467
468void wxLog::Flush()
469{
470 // remember that we don't have any more messages to show
471 m_bHasMessages = FALSE;
472}
473
474// ----------------------------------------------------------------------------
475// wxLogStderr class implementation
476// ----------------------------------------------------------------------------
477
478wxLogStderr::wxLogStderr(FILE *fp)
479{
480 if ( fp == NULL )
481 m_fp = stderr;
482 else
483 m_fp = fp;
484}
485
486#if defined(__WXMAC__) && !defined(__DARWIN__) && (__MWERKS__ > 0x5300)
487
488#if !TARGET_API_MAC_CARBON
489// MetroNub stuff doesn't seem to work in CodeWarrior 5.3 Carbon builds...
490
491#ifndef __MetroNubUtils__
492#include "MetroNubUtils.h"
493#endif
494
495#ifdef __cplusplus
496 extern "C" {
497#endif
498
499#ifndef __GESTALT__
500#include <Gestalt.h>
501#endif
502
503#ifndef true
504#define true 1
505#endif
506
507#ifndef false
508#define false 0
509#endif
510
511#if TARGET_API_MAC_CARBON
512
513 #include <CodeFragments.h>
514
515 EXTERN_API_C( long )
516 CallUniversalProc(UniversalProcPtr theProcPtr, ProcInfoType procInfo, ...);
517
518 ProcPtr gCallUniversalProc_Proc = NULL;
519
520#endif
521
522static MetroNubUserEntryBlock* gMetroNubEntry = NULL;
523
524static long fRunOnce = false;
525
526Boolean IsCompatibleVersion(short inVersion);
527
528/* ---------------------------------------------------------------------------
529 IsCompatibleVersion
530 --------------------------------------------------------------------------- */
531
532Boolean IsCompatibleVersion(short inVersion)
533{
534 Boolean result = false;
535
536 if (fRunOnce)
537 {
538 MetroNubUserEntryBlock* block = (MetroNubUserEntryBlock *)result;
539
540 result = (inVersion <= block->apiHiVersion);
541 }
542
543 return result;
544}
545
546/* ---------------------------------------------------------------------------
547 IsMetroNubInstalled
548 --------------------------------------------------------------------------- */
549
550Boolean IsMetroNubInstalled()
551{
552 if (!fRunOnce)
553 {
554 long result, value;
555
556 fRunOnce = true;
557 gMetroNubEntry = NULL;
558
559 if (Gestalt(gestaltSystemVersion, &value) == noErr && value < 0x1000)
560 {
561 /* look for MetroNub's Gestalt selector */
562 if (Gestalt(kMetroNubUserSignature, &result) == noErr)
563 {
564
565 #if TARGET_API_MAC_CARBON
566 if (gCallUniversalProc_Proc == NULL)
567 {
568 CFragConnectionID connectionID;
569 Ptr mainAddress;
570 Str255 errorString;
571 ProcPtr symbolAddress;
572 OSErr err;
573 CFragSymbolClass symbolClass;
574
575 symbolAddress = NULL;
576 err = GetSharedLibrary("\pInterfaceLib", kPowerPCCFragArch, kFindCFrag,
577 &connectionID, &mainAddress, errorString);
578
579 if (err != noErr)
580 {
581 gCallUniversalProc_Proc = NULL;
582 goto end;
583 }
584
585 err = FindSymbol(connectionID, "\pCallUniversalProc",
586 (Ptr *) &gCallUniversalProc_Proc, &symbolClass);
587
588 if (err != noErr)
589 {
590 gCallUniversalProc_Proc = NULL;
591 goto end;
592 }
593 }
594 #endif
595
596 {
597 MetroNubUserEntryBlock* block = (MetroNubUserEntryBlock *)result;
598
599 /* make sure the version of the API is compatible */
600 if (block->apiLowVersion <= kMetroNubUserAPIVersion &&
601 kMetroNubUserAPIVersion <= block->apiHiVersion)
602 gMetroNubEntry = block; /* success! */
603 }
604
605 }
606 }
607 }
608
609end:
610
611#if TARGET_API_MAC_CARBON
612 return (gMetroNubEntry != NULL && gCallUniversalProc_Proc != NULL);
613#else
614 return (gMetroNubEntry != NULL);
615#endif
616}
617
618/* ---------------------------------------------------------------------------
619 IsMWDebuggerRunning [v1 API]
620 --------------------------------------------------------------------------- */
621
622Boolean IsMWDebuggerRunning()
623{
624 if (IsMetroNubInstalled())
625 return CallIsDebuggerRunningProc(gMetroNubEntry->isDebuggerRunning);
626 else
627 return false;
628}
629
630/* ---------------------------------------------------------------------------
631 AmIBeingMWDebugged [v1 API]
632 --------------------------------------------------------------------------- */
633
634Boolean AmIBeingMWDebugged()
635{
636 if (IsMetroNubInstalled())
637 return CallAmIBeingDebuggedProc(gMetroNubEntry->amIBeingDebugged);
638 else
639 return false;
640}
641
642/* ---------------------------------------------------------------------------
643 UserSetWatchPoint [v2 API]
644 --------------------------------------------------------------------------- */
645
646OSErr UserSetWatchPoint (Ptr address, long length, WatchPointIDT* watchPointID)
647{
648 if (IsMetroNubInstalled() && IsCompatibleVersion(kMetroNubUserAPIVersion))
649 return CallUserSetWatchPointProc(gMetroNubEntry->userSetWatchPoint,
650 address, length, watchPointID);
651 else
652 return errProcessIsNotClient;
653}
654
655/* ---------------------------------------------------------------------------
656 ClearWatchPoint [v2 API]
657 --------------------------------------------------------------------------- */
658
659OSErr ClearWatchPoint (WatchPointIDT watchPointID)
660{
661 if (IsMetroNubInstalled() && IsCompatibleVersion(kMetroNubUserAPIVersion))
662 return CallClearWatchPointProc(gMetroNubEntry->clearWatchPoint,
663 watchPointID);
664 else
665 return errProcessIsNotClient;
666}
667
668#ifdef __cplusplus
669 }
670#endif
671
672#endif // !TARGET_API_MAC_CARBON
673
674#endif // defined(__WXMAC__) && !defined(__DARWIN__) && (__MWERKS__ > 0x5300)
675
676void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
677{
678 wxString str;
679 TimeStamp(&str);
680 str << szString;
681
682 fputs(str.mb_str(), m_fp);
683 fputc(_T('\n'), m_fp);
684 fflush(m_fp);
685
686 // under Windows, programs usually don't have stderr at all, so show the
687 // messages also under debugger - unless it's a console program
688#if defined(__WXMSW__) && wxUSE_GUI && !defined(__WXMICROWIN__)
689 str += wxT("\r\n") ;
690 OutputDebugString(str.c_str());
691#endif // MSW
692#if defined(__WXMAC__) && !defined(__DARWIN__) && wxUSE_GUI
693 Str255 pstr ;
694 strcpy( (char*) pstr , str.c_str() ) ;
695 strcat( (char*) pstr , ";g" ) ;
696 c2pstr( (char*) pstr ) ;
697
698 Boolean running = false ;
699
700#if !TARGET_API_MAC_CARBON && (__MWERKS__ > 0x5300)
701
702 if ( IsMWDebuggerRunning() && AmIBeingMWDebugged() )
703 {
704 running = true ;
705 }
706
707#endif
708
709 if (running)
710 {
711#ifdef __powerc
712 DebugStr(pstr);
713#else
714 SysBreakStr(pstr);
715#endif
716 }
717#endif // Mac
718}
719
720// ----------------------------------------------------------------------------
721// wxLogStream implementation
722// ----------------------------------------------------------------------------
723
724#if wxUSE_STD_IOSTREAM
725wxLogStream::wxLogStream(wxSTD ostream *ostr)
726{
727 if ( ostr == NULL )
728 m_ostr = &wxSTD cerr;
729 else
730 m_ostr = ostr;
731}
732
733void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
734{
735 wxString str;
736 TimeStamp(&str);
737 (*m_ostr) << str << wxConvertWX2MB(szString) << wxSTD endl;
738}
739#endif // wxUSE_STD_IOSTREAM
740
741// ----------------------------------------------------------------------------
742// wxLogChain
743// ----------------------------------------------------------------------------
744
745wxLogChain::wxLogChain(wxLog *logger)
746{
747 m_logNew = logger;
748 m_logOld = wxLog::SetActiveTarget(this);
749}
750
751void wxLogChain::SetLog(wxLog *logger)
752{
753 if ( m_logNew != this )
754 delete m_logNew;
755
756 wxLog::SetActiveTarget(logger);
757
758 m_logNew = logger;
759}
760
761void wxLogChain::Flush()
762{
763 if ( m_logOld )
764 m_logOld->Flush();
765
766 // be careful to avoid inifinite recursion
767 if ( m_logNew && m_logNew != this )
768 m_logNew->Flush();
769}
770
771void wxLogChain::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
772{
773 // let the previous logger show it
774 if ( m_logOld && IsPassingMessages() )
775 {
776 // bogus cast just to access protected DoLog
777 ((wxLogChain *)m_logOld)->DoLog(level, szString, t);
778 }
779
780 if ( m_logNew && m_logNew != this )
781 {
782 // as above...
783 ((wxLogChain *)m_logNew)->DoLog(level, szString, t);
784 }
785}
786
787// ----------------------------------------------------------------------------
788// wxLogPassThrough
789// ----------------------------------------------------------------------------
790
791#ifdef __VISUALC__
792 // "'this' : used in base member initializer list" - so what?
793 #pragma warning(disable:4355)
794#endif // VC++
795
796wxLogPassThrough::wxLogPassThrough()
797 : wxLogChain(this)
798{
799}
800
801#ifdef __VISUALC__
802 #pragma warning(default:4355)
803#endif // VC++
804
805// ============================================================================
806// Global functions/variables
807// ============================================================================
808
809// ----------------------------------------------------------------------------
810// static variables
811// ----------------------------------------------------------------------------
812
813wxLog *wxLog::ms_pLogger = (wxLog *)NULL;
814bool wxLog::ms_doLog = TRUE;
815bool wxLog::ms_bAutoCreate = TRUE;
816bool wxLog::ms_bVerbose = FALSE;
817
818size_t wxLog::ms_suspendCount = 0;
819
820#if wxUSE_GUI
821 const wxChar *wxLog::ms_timestamp = wxT("%X"); // time only, no date
822#else
823 const wxChar *wxLog::ms_timestamp = NULL; // save space
824#endif
825
826wxTraceMask wxLog::ms_ulTraceMask = (wxTraceMask)0;
827wxArrayString wxLog::ms_aTraceMasks;
828
829// ----------------------------------------------------------------------------
830// stdout error logging helper
831// ----------------------------------------------------------------------------
832
833// helper function: wraps the message and justifies it under given position
834// (looks more pretty on the terminal). Also adds newline at the end.
835//
836// TODO this is now disabled until I find a portable way of determining the
837// terminal window size (ok, I found it but does anybody really cares?)
838#ifdef LOG_PRETTY_WRAP
839static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz)
840{
841 size_t nMax = 80; // FIXME
842 size_t nStart = strlen(pszPrefix);
843 fputs(pszPrefix, f);
844
845 size_t n;
846 while ( *psz != '\0' ) {
847 for ( n = nStart; (n < nMax) && (*psz != '\0'); n++ )
848 putc(*psz++, f);
849
850 // wrapped?
851 if ( *psz != '\0' ) {
852 /*putc('\n', f);*/
853 for ( n = 0; n < nStart; n++ )
854 putc(' ', f);
855
856 // as we wrapped, squeeze all white space
857 while ( isspace(*psz) )
858 psz++;
859 }
860 }
861
862 putc('\n', f);
863}
864#endif //LOG_PRETTY_WRAP
865
866// ----------------------------------------------------------------------------
867// error code/error message retrieval functions
868// ----------------------------------------------------------------------------
869
870// get error code from syste
871unsigned long wxSysErrorCode()
872{
873#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
874#ifdef __WIN32__
875 return ::GetLastError();
876#else //WIN16
877 // TODO what to do on Windows 3.1?
878 return 0;
879#endif //WIN16/32
880#else //Unix
881 return errno;
882#endif //Win/Unix
883}
884
885// get error message from system
886const wxChar *wxSysErrorMsg(unsigned long nErrCode)
887{
888 if ( nErrCode == 0 )
889 nErrCode = wxSysErrorCode();
890
891#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
892#ifdef __WIN32__
893 static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
894
895 // get error message from system
896 LPVOID lpMsgBuf;
897 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
898 NULL, nErrCode,
899 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
900 (LPTSTR)&lpMsgBuf,
901 0, NULL);
902
903 // copy it to our buffer and free memory
904 if( lpMsgBuf != 0 ) {
905 wxStrncpy(s_szBuf, (const wxChar *)lpMsgBuf, WXSIZEOF(s_szBuf) - 1);
906 s_szBuf[WXSIZEOF(s_szBuf) - 1] = wxT('\0');
907
908 LocalFree(lpMsgBuf);
909
910 // returned string is capitalized and ended with '\r\n' - bad
911 s_szBuf[0] = (wxChar)wxTolower(s_szBuf[0]);
912 size_t len = wxStrlen(s_szBuf);
913 if ( len > 0 ) {
914 // truncate string
915 if ( s_szBuf[len - 2] == wxT('\r') )
916 s_szBuf[len - 2] = wxT('\0');
917 }
918 }
919 else {
920 s_szBuf[0] = wxT('\0');
921 }
922
923 return s_szBuf;
924#else //Win16
925 // TODO
926 return NULL;
927#endif // Win16/32
928#else // Unix
929#if wxUSE_UNICODE
930 static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
931 wxConvCurrent->MB2WC(s_szBuf, strerror(nErrCode), WXSIZEOF(s_szBuf) -1);
932 return s_szBuf;
933#else
934 return strerror((int)nErrCode);
935#endif
936#endif // Win/Unix
937}
938
939#endif //wxUSE_LOG
wxWidgets (Impactor)