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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 | #ifdef __WXMSW__ | |
40 | #include "wx/msw/private.h" | |
41 | #endif | |
42 | #include "wx/msgdlg.h" | |
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(__WXMSW__) || defined(__WXMICROWIN__) | |
65 | #include <signal.h> | |
66 | #endif //Win/Unix | |
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 | |
92 | static wxChar s_szBuf[LOG_BUFFER_SIZE]; | |
93 | ||
94 | #if wxUSE_THREADS | |
95 | ||
96 | // the critical section protecting the static buffer | |
97 | static wxCriticalSection gs_csLogBuf; | |
98 | ||
99 | #endif // wxUSE_THREADS | |
100 | ||
101 | // return true if we have a non NULL non disabled log target | |
102 | static 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 | |
115 | void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...) | |
116 | { | |
117 | if ( IsLoggingEnabled() ) { | |
118 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); | |
119 | ||
120 | va_list argptr; | |
121 | va_start(argptr, szFormat); | |
122 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); | |
123 | va_end(argptr); | |
124 | ||
125 | wxLog::OnLog(level, s_szBuf, time(NULL)); | |
126 | } | |
127 | } | |
128 | ||
129 | #define IMPLEMENT_LOG_FUNCTION(level) \ | |
130 | void wxLog##level(const wxChar *szFormat, ...) \ | |
131 | { \ | |
132 | if ( IsLoggingEnabled() ) { \ | |
133 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); \ | |
134 | \ | |
135 | va_list argptr; \ | |
136 | va_start(argptr, szFormat); \ | |
137 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); \ | |
138 | va_end(argptr); \ | |
139 | \ | |
140 | wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL)); \ | |
141 | } \ | |
142 | } | |
143 | ||
144 | IMPLEMENT_LOG_FUNCTION(FatalError) | |
145 | IMPLEMENT_LOG_FUNCTION(Error) | |
146 | IMPLEMENT_LOG_FUNCTION(Warning) | |
147 | IMPLEMENT_LOG_FUNCTION(Message) | |
148 | IMPLEMENT_LOG_FUNCTION(Info) | |
149 | IMPLEMENT_LOG_FUNCTION(Status) | |
150 | ||
151 | // same as info, but only if 'verbose' mode is on | |
152 | void wxLogVerbose(const wxChar *szFormat, ...) | |
153 | { | |
154 | if ( IsLoggingEnabled() ) { | |
155 | wxLog *pLog = wxLog::GetActiveTarget(); | |
156 | if ( pLog != NULL && pLog->GetVerbose() ) { | |
157 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); | |
158 | ||
159 | va_list argptr; | |
160 | va_start(argptr, szFormat); | |
161 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); | |
162 | va_end(argptr); | |
163 | ||
164 | wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL)); | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
169 | // debug functions | |
170 | #ifdef __WXDEBUG__ | |
171 | #define IMPLEMENT_LOG_DEBUG_FUNCTION(level) \ | |
172 | void wxLog##level(const wxChar *szFormat, ...) \ | |
173 | { \ | |
174 | if ( IsLoggingEnabled() ) { \ | |
175 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); \ | |
176 | \ | |
177 | va_list argptr; \ | |
178 | va_start(argptr, szFormat); \ | |
179 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); \ | |
180 | va_end(argptr); \ | |
181 | \ | |
182 | wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL)); \ | |
183 | } \ | |
184 | } | |
185 | ||
186 | void wxLogTrace(const wxChar *mask, const wxChar *szFormat, ...) | |
187 | { | |
188 | if ( IsLoggingEnabled() && wxLog::IsAllowedTraceMask(mask) ) { | |
189 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); | |
190 | ||
191 | wxChar *p = s_szBuf; | |
192 | size_t len = WXSIZEOF(s_szBuf); | |
193 | wxStrncpy(s_szBuf, _T("("), len); | |
194 | len -= 1; // strlen("(") | |
195 | p += 1; | |
196 | wxStrncat(p, mask, len); | |
197 | size_t lenMask = wxStrlen(mask); | |
198 | len -= lenMask; | |
199 | p += lenMask; | |
200 | ||
201 | wxStrncat(p, _T(") "), len); | |
202 | len -= 2; | |
203 | p += 2; | |
204 | ||
205 | va_list argptr; | |
206 | va_start(argptr, szFormat); | |
207 | wxVsnprintf(p, len, szFormat, argptr); | |
208 | va_end(argptr); | |
209 | ||
210 | wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL)); | |
211 | } | |
212 | } | |
213 | ||
214 | void wxLogTrace(wxTraceMask mask, const wxChar *szFormat, ...) | |
215 | { | |
216 | // we check that all of mask bits are set in the current mask, so | |
217 | // that wxLogTrace(wxTraceRefCount | wxTraceOle) will only do something | |
218 | // if both bits are set. | |
219 | if ( IsLoggingEnabled() && ((wxLog::GetTraceMask() & mask) == mask) ) { | |
220 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); | |
221 | ||
222 | va_list argptr; | |
223 | va_start(argptr, szFormat); | |
224 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); | |
225 | va_end(argptr); | |
226 | ||
227 | wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL)); | |
228 | } | |
229 | } | |
230 | ||
231 | #else // release | |
232 | #define IMPLEMENT_LOG_DEBUG_FUNCTION(level) | |
233 | #endif | |
234 | ||
235 | IMPLEMENT_LOG_DEBUG_FUNCTION(Debug) | |
236 | IMPLEMENT_LOG_DEBUG_FUNCTION(Trace) | |
237 | ||
238 | // wxLogSysError: one uses the last error code, for other you must give it | |
239 | // explicitly | |
240 | ||
241 | // common part of both wxLogSysError | |
242 | void wxLogSysErrorHelper(long lErrCode) | |
243 | { | |
244 | wxChar szErrMsg[LOG_BUFFER_SIZE / 2]; | |
245 | wxSnprintf(szErrMsg, WXSIZEOF(szErrMsg), | |
246 | _(" (error %ld: %s)"), lErrCode, wxSysErrorMsg(lErrCode)); | |
247 | wxStrncat(s_szBuf, szErrMsg, WXSIZEOF(s_szBuf) - wxStrlen(s_szBuf)); | |
248 | ||
249 | wxLog::OnLog(wxLOG_Error, s_szBuf, time(NULL)); | |
250 | } | |
251 | ||
252 | void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...) | |
253 | { | |
254 | if ( IsLoggingEnabled() ) { | |
255 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); | |
256 | ||
257 | va_list argptr; | |
258 | va_start(argptr, szFormat); | |
259 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); | |
260 | va_end(argptr); | |
261 | ||
262 | wxLogSysErrorHelper(wxSysErrorCode()); | |
263 | } | |
264 | } | |
265 | ||
266 | void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...) | |
267 | { | |
268 | if ( IsLoggingEnabled() ) { | |
269 | wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); | |
270 | ||
271 | va_list argptr; | |
272 | va_start(argptr, szFormat); | |
273 | wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr); | |
274 | va_end(argptr); | |
275 | ||
276 | wxLogSysErrorHelper(lErrCode); | |
277 | } | |
278 | } | |
279 | ||
280 | // ---------------------------------------------------------------------------- | |
281 | // wxLog class implementation | |
282 | // ---------------------------------------------------------------------------- | |
283 | ||
284 | wxLog::wxLog() | |
285 | { | |
286 | m_bHasMessages = FALSE; | |
287 | m_bVerbose = FALSE; | |
288 | } | |
289 | ||
290 | wxLog *wxLog::GetActiveTarget() | |
291 | { | |
292 | if ( ms_bAutoCreate && ms_pLogger == NULL ) { | |
293 | // prevent infinite recursion if someone calls wxLogXXX() from | |
294 | // wxApp::CreateLogTarget() | |
295 | static bool s_bInGetActiveTarget = FALSE; | |
296 | if ( !s_bInGetActiveTarget ) { | |
297 | s_bInGetActiveTarget = TRUE; | |
298 | ||
299 | // ask the application to create a log target for us | |
300 | if ( wxTheApp != NULL ) | |
301 | ms_pLogger = wxTheApp->CreateLogTarget(); | |
302 | else | |
303 | ms_pLogger = new wxLogStderr; | |
304 | ||
305 | s_bInGetActiveTarget = FALSE; | |
306 | ||
307 | // do nothing if it fails - what can we do? | |
308 | } | |
309 | } | |
310 | ||
311 | return ms_pLogger; | |
312 | } | |
313 | ||
314 | wxLog *wxLog::SetActiveTarget(wxLog *pLogger) | |
315 | { | |
316 | if ( ms_pLogger != NULL ) { | |
317 | // flush the old messages before changing because otherwise they might | |
318 | // get lost later if this target is not restored | |
319 | ms_pLogger->Flush(); | |
320 | } | |
321 | ||
322 | wxLog *pOldLogger = ms_pLogger; | |
323 | ms_pLogger = pLogger; | |
324 | ||
325 | return pOldLogger; | |
326 | } | |
327 | ||
328 | void wxLog::DontCreateOnDemand() | |
329 | { | |
330 | ms_bAutoCreate = FALSE; | |
331 | ||
332 | // this is usually called at the end of the program and we assume that it | |
333 | // is *always* called at the end - so we free memory here to avoid false | |
334 | // memory leak reports from wxWin memory tracking code | |
335 | ClearTraceMasks(); | |
336 | } | |
337 | ||
338 | void wxLog::RemoveTraceMask(const wxString& str) | |
339 | { | |
340 | int index = ms_aTraceMasks.Index(str); | |
341 | if ( index != wxNOT_FOUND ) | |
342 | ms_aTraceMasks.Remove((size_t)index); | |
343 | } | |
344 | ||
345 | void wxLog::ClearTraceMasks() | |
346 | { | |
347 | ms_aTraceMasks.Clear(); | |
348 | } | |
349 | ||
350 | void wxLog::TimeStamp(wxString *str) | |
351 | { | |
352 | if ( ms_timestamp ) | |
353 | { | |
354 | wxChar buf[256]; | |
355 | time_t timeNow; | |
356 | (void)time(&timeNow); | |
357 | wxStrftime(buf, WXSIZEOF(buf), ms_timestamp, localtime(&timeNow)); | |
358 | ||
359 | str->Empty(); | |
360 | *str << buf << wxT(": "); | |
361 | } | |
362 | } | |
363 | ||
364 | void wxLog::DoLog(wxLogLevel level, const wxChar *szString, time_t t) | |
365 | { | |
366 | switch ( level ) { | |
367 | case wxLOG_FatalError: | |
368 | DoLogString(wxString(_("Fatal error: ")) + szString, t); | |
369 | DoLogString(_("Program aborted."), t); | |
370 | Flush(); | |
371 | abort(); | |
372 | break; | |
373 | ||
374 | case wxLOG_Error: | |
375 | DoLogString(wxString(_("Error: ")) + szString, t); | |
376 | break; | |
377 | ||
378 | case wxLOG_Warning: | |
379 | DoLogString(wxString(_("Warning: ")) + szString, t); | |
380 | break; | |
381 | ||
382 | case wxLOG_Info: | |
383 | if ( GetVerbose() ) | |
384 | case wxLOG_Message: | |
385 | case wxLOG_Status: | |
386 | default: // log unknown log levels too | |
387 | DoLogString(szString, t); | |
388 | break; | |
389 | ||
390 | case wxLOG_Trace: | |
391 | case wxLOG_Debug: | |
392 | #ifdef __WXDEBUG__ | |
393 | { | |
394 | wxString msg = level == wxLOG_Trace ? wxT("Trace: ") | |
395 | : wxT("Debug: "); | |
396 | msg << szString; | |
397 | DoLogString(msg, t); | |
398 | } | |
399 | #endif // Debug | |
400 | break; | |
401 | } | |
402 | } | |
403 | ||
404 | void wxLog::DoLogString(const wxChar *WXUNUSED(szString), time_t WXUNUSED(t)) | |
405 | { | |
406 | wxFAIL_MSG(wxT("DoLogString must be overriden if it's called.")); | |
407 | } | |
408 | ||
409 | void wxLog::Flush() | |
410 | { | |
411 | // do nothing | |
412 | } | |
413 | ||
414 | // ---------------------------------------------------------------------------- | |
415 | // wxLogStderr class implementation | |
416 | // ---------------------------------------------------------------------------- | |
417 | ||
418 | wxLogStderr::wxLogStderr(FILE *fp) | |
419 | { | |
420 | if ( fp == NULL ) | |
421 | m_fp = stderr; | |
422 | else | |
423 | m_fp = fp; | |
424 | } | |
425 | ||
426 | #if defined(__WXMAC__) && !defined(__UNIX__) | |
427 | #define kDebuggerSignature 'MWDB' | |
428 | ||
429 | static Boolean FindProcessBySignature(OSType signature, ProcessInfoRec* info) | |
430 | { | |
431 | OSErr err; | |
432 | ProcessSerialNumber psn; | |
433 | Boolean found = false; | |
434 | psn.highLongOfPSN = 0; | |
435 | psn.lowLongOfPSN = kNoProcess; | |
436 | ||
437 | if (!info) return false; | |
438 | ||
439 | info->processInfoLength = sizeof(ProcessInfoRec); | |
440 | info->processName = NULL; | |
441 | info->processAppSpec = NULL; | |
442 | ||
443 | err = noErr; | |
444 | while (!found && err == noErr) | |
445 | { | |
446 | err = GetNextProcess(&psn); | |
447 | if (err == noErr) | |
448 | { | |
449 | err = GetProcessInformation(&psn, info); | |
450 | found = err == noErr && info->processSignature == signature; | |
451 | } | |
452 | } | |
453 | return found; | |
454 | } | |
455 | ||
456 | pascal Boolean MWDebuggerIsRunning(void) | |
457 | { | |
458 | ProcessInfoRec info; | |
459 | return FindProcessBySignature(kDebuggerSignature, &info); | |
460 | } | |
461 | ||
462 | pascal OSErr AmIBeingMWDebugged(Boolean* result) | |
463 | { | |
464 | OSErr err; | |
465 | ProcessSerialNumber psn; | |
466 | OSType sig = kDebuggerSignature; | |
467 | AppleEvent theAE = {typeNull, NULL}; | |
468 | AppleEvent theReply = {typeNull, NULL}; | |
469 | AEAddressDesc addr = {typeNull, NULL}; | |
470 | DescType actualType; | |
471 | Size actualSize; | |
472 | ||
473 | if (!result) return paramErr; | |
474 | ||
475 | err = AECreateDesc(typeApplSignature, &sig, sizeof(sig), &addr); | |
476 | if (err != noErr) goto exit; | |
477 | ||
478 | err = AECreateAppleEvent('MWDB', 'Dbg?', &addr, | |
479 | kAutoGenerateReturnID, kAnyTransactionID, &theAE); | |
480 | if (err != noErr) goto exit; | |
481 | ||
482 | GetCurrentProcess(&psn); | |
483 | err = AEPutParamPtr(&theAE, keyDirectObject, typeProcessSerialNumber, | |
484 | &psn, sizeof(psn)); | |
485 | if (err != noErr) goto exit; | |
486 | ||
487 | err = AESend(&theAE, &theReply, kAEWaitReply, kAENormalPriority, | |
488 | kAEDefaultTimeout, NULL, NULL); | |
489 | if (err != noErr) goto exit; | |
490 | ||
491 | err = AEGetParamPtr(&theReply, keyAEResult, typeBoolean, &actualType, result, | |
492 | sizeof(Boolean), &actualSize); | |
493 | ||
494 | exit: | |
495 | if (addr.dataHandle) | |
496 | AEDisposeDesc(&addr); | |
497 | if (theAE.dataHandle) | |
498 | AEDisposeDesc(&theAE); | |
499 | if (theReply.dataHandle) | |
500 | AEDisposeDesc(&theReply); | |
501 | ||
502 | return err; | |
503 | } | |
504 | #endif | |
505 | ||
506 | void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t)) | |
507 | { | |
508 | wxString str; | |
509 | TimeStamp(&str); | |
510 | str << szString; | |
511 | ||
512 | fputs(str.mb_str(), m_fp); | |
513 | fputc(_T('\n'), m_fp); | |
514 | fflush(m_fp); | |
515 | ||
516 | // under Windows, programs usually don't have stderr at all, so show the | |
517 | // messages also under debugger - unless it's a console program | |
518 | #if defined(__WXMSW__) && wxUSE_GUI && !defined(__WXMICROWIN__) | |
519 | str += wxT("\r\n") ; | |
520 | OutputDebugString(str.c_str()); | |
521 | #endif // MSW | |
522 | #if defined(__WXMAC__) && !defined(__WXMAC_X__) && wxUSE_GUI | |
523 | Str255 pstr ; | |
524 | strcpy( (char*) pstr , str.c_str() ) ; | |
525 | strcat( (char*) pstr , ";g" ) ; | |
526 | c2pstr( (char*) pstr ) ; | |
527 | #if __WXDEBUG__ | |
528 | Boolean running = false ; | |
529 | ||
530 | /* | |
531 | if ( MWDebuggerIsRunning() ) | |
532 | { | |
533 | AmIBeingMWDebugged( &running ) ; | |
534 | } | |
535 | */ | |
536 | if (running) | |
537 | { | |
538 | #ifdef __powerc | |
539 | DebugStr(pstr); | |
540 | #else | |
541 | SysBreakStr(pstr); | |
542 | #endif | |
543 | } | |
544 | else | |
545 | #endif | |
546 | { | |
547 | #ifdef __powerc | |
548 | DebugStr(pstr); | |
549 | #else | |
550 | DebugStr(pstr); | |
551 | #endif | |
552 | } | |
553 | #endif // Mac | |
554 | } | |
555 | ||
556 | // ---------------------------------------------------------------------------- | |
557 | // wxLogStream implementation | |
558 | // ---------------------------------------------------------------------------- | |
559 | ||
560 | #if wxUSE_STD_IOSTREAM | |
561 | wxLogStream::wxLogStream(wxSTD ostream *ostr) | |
562 | { | |
563 | if ( ostr == NULL ) | |
564 | m_ostr = &wxSTD cerr; | |
565 | else | |
566 | m_ostr = ostr; | |
567 | } | |
568 | ||
569 | void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t)) | |
570 | { | |
571 | wxString str; | |
572 | TimeStamp(&str); | |
573 | (*m_ostr) << str << wxConvertWX2MB(szString) << wxSTD endl; | |
574 | } | |
575 | #endif // wxUSE_STD_IOSTREAM | |
576 | ||
577 | // ============================================================================ | |
578 | // Global functions/variables | |
579 | // ============================================================================ | |
580 | ||
581 | // ---------------------------------------------------------------------------- | |
582 | // static variables | |
583 | // ---------------------------------------------------------------------------- | |
584 | ||
585 | wxLog *wxLog::ms_pLogger = (wxLog *)NULL; | |
586 | bool wxLog::ms_doLog = TRUE; | |
587 | bool wxLog::ms_bAutoCreate = TRUE; | |
588 | ||
589 | size_t wxLog::ms_suspendCount = 0; | |
590 | ||
591 | #if wxUSE_GUI | |
592 | const wxChar *wxLog::ms_timestamp = wxT("%X"); // time only, no date | |
593 | #else | |
594 | const wxChar *wxLog::ms_timestamp = NULL; // save space | |
595 | #endif | |
596 | ||
597 | wxTraceMask wxLog::ms_ulTraceMask = (wxTraceMask)0; | |
598 | wxArrayString wxLog::ms_aTraceMasks; | |
599 | ||
600 | // ---------------------------------------------------------------------------- | |
601 | // stdout error logging helper | |
602 | // ---------------------------------------------------------------------------- | |
603 | ||
604 | // helper function: wraps the message and justifies it under given position | |
605 | // (looks more pretty on the terminal). Also adds newline at the end. | |
606 | // | |
607 | // TODO this is now disabled until I find a portable way of determining the | |
608 | // terminal window size (ok, I found it but does anybody really cares?) | |
609 | #ifdef LOG_PRETTY_WRAP | |
610 | static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz) | |
611 | { | |
612 | size_t nMax = 80; // FIXME | |
613 | size_t nStart = strlen(pszPrefix); | |
614 | fputs(pszPrefix, f); | |
615 | ||
616 | size_t n; | |
617 | while ( *psz != '\0' ) { | |
618 | for ( n = nStart; (n < nMax) && (*psz != '\0'); n++ ) | |
619 | putc(*psz++, f); | |
620 | ||
621 | // wrapped? | |
622 | if ( *psz != '\0' ) { | |
623 | /*putc('\n', f);*/ | |
624 | for ( n = 0; n < nStart; n++ ) | |
625 | putc(' ', f); | |
626 | ||
627 | // as we wrapped, squeeze all white space | |
628 | while ( isspace(*psz) ) | |
629 | psz++; | |
630 | } | |
631 | } | |
632 | ||
633 | putc('\n', f); | |
634 | } | |
635 | #endif //LOG_PRETTY_WRAP | |
636 | ||
637 | // ---------------------------------------------------------------------------- | |
638 | // error code/error message retrieval functions | |
639 | // ---------------------------------------------------------------------------- | |
640 | ||
641 | // get error code from syste | |
642 | unsigned long wxSysErrorCode() | |
643 | { | |
644 | #if defined(__WXMSW__) && !defined(__WXMICROWIN__) | |
645 | #ifdef __WIN32__ | |
646 | return ::GetLastError(); | |
647 | #else //WIN16 | |
648 | // TODO what to do on Windows 3.1? | |
649 | return 0; | |
650 | #endif //WIN16/32 | |
651 | #else //Unix | |
652 | return errno; | |
653 | #endif //Win/Unix | |
654 | } | |
655 | ||
656 | // get error message from system | |
657 | const wxChar *wxSysErrorMsg(unsigned long nErrCode) | |
658 | { | |
659 | if ( nErrCode == 0 ) | |
660 | nErrCode = wxSysErrorCode(); | |
661 | ||
662 | #if defined(__WXMSW__) && !defined(__WXMICROWIN__) | |
663 | #ifdef __WIN32__ | |
664 | static wxChar s_szBuf[LOG_BUFFER_SIZE / 2]; | |
665 | ||
666 | // get error message from system | |
667 | LPVOID lpMsgBuf; | |
668 | FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, | |
669 | NULL, nErrCode, | |
670 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
671 | (LPTSTR)&lpMsgBuf, | |
672 | 0, NULL); | |
673 | ||
674 | // copy it to our buffer and free memory | |
675 | wxStrncpy(s_szBuf, (const wxChar *)lpMsgBuf, WXSIZEOF(s_szBuf) - 1); | |
676 | s_szBuf[WXSIZEOF(s_szBuf) - 1] = wxT('\0'); | |
677 | LocalFree(lpMsgBuf); | |
678 | ||
679 | // returned string is capitalized and ended with '\r\n' - bad | |
680 | s_szBuf[0] = (wxChar)wxTolower(s_szBuf[0]); | |
681 | size_t len = wxStrlen(s_szBuf); | |
682 | if ( len > 0 ) { | |
683 | // truncate string | |
684 | if ( s_szBuf[len - 2] == wxT('\r') ) | |
685 | s_szBuf[len - 2] = wxT('\0'); | |
686 | } | |
687 | ||
688 | return s_szBuf; | |
689 | #else //Win16 | |
690 | // TODO | |
691 | return NULL; | |
692 | #endif // Win16/32 | |
693 | #else // Unix | |
694 | #if wxUSE_UNICODE | |
695 | static wxChar s_szBuf[LOG_BUFFER_SIZE / 2]; | |
696 | wxConvCurrent->MB2WC(s_szBuf, strerror(nErrCode), WXSIZEOF(s_szBuf) -1); | |
697 | return s_szBuf; | |
698 | #else | |
699 | return strerror((int)nErrCode); | |
700 | #endif | |
701 | #endif // Win/Unix | |
702 | } | |
703 | ||
704 | // ---------------------------------------------------------------------------- | |
705 | // debug helper | |
706 | // ---------------------------------------------------------------------------- | |
707 | ||
708 | #ifdef __WXDEBUG__ | |
709 | ||
710 | // wxASSERT() helper | |
711 | bool wxAssertIsEqual(int x, int y) | |
712 | { | |
713 | return x == y; | |
714 | } | |
715 | ||
716 | // break into the debugger | |
717 | void wxTrap() | |
718 | { | |
719 | #if defined(__WXMSW__) && !defined(__WXMICROWIN__) | |
720 | DebugBreak(); | |
721 | #elif defined(__WXMAC__) | |
722 | #if __powerc | |
723 | Debugger(); | |
724 | #else | |
725 | SysBreak(); | |
726 | #endif | |
727 | #elif defined(__UNIX__) | |
728 | raise(SIGTRAP); | |
729 | #else | |
730 | // TODO | |
731 | #endif // Win/Unix | |
732 | } | |
733 | ||
734 | // this function is called when an assert fails | |
735 | void wxOnAssert(const wxChar *szFile, int nLine, const wxChar *szMsg) | |
736 | { | |
737 | // this variable can be set to true to suppress "assert failure" messages | |
738 | static bool s_bNoAsserts = FALSE; | |
739 | static bool s_bInAssert = FALSE; // FIXME MT-unsafe | |
740 | ||
741 | if ( s_bInAssert ) { | |
742 | // He-e-e-e-elp!! we're trapped in endless loop | |
743 | wxTrap(); | |
744 | ||
745 | s_bInAssert = FALSE; | |
746 | ||
747 | return; | |
748 | } | |
749 | ||
750 | s_bInAssert = TRUE; | |
751 | ||
752 | wxChar szBuf[LOG_BUFFER_SIZE]; | |
753 | ||
754 | // make life easier for people using VC++ IDE: clicking on the message | |
755 | // will take us immediately to the place of the failed assert | |
756 | wxSnprintf(szBuf, WXSIZEOF(szBuf), | |
757 | #ifdef __VISUALC__ | |
758 | wxT("%s(%d): assert failed"), | |
759 | #else // !VC++ | |
760 | // make the error message more clear for all the others | |
761 | wxT("Assert failed in file %s at line %d"), | |
762 | #endif // VC/!VC | |
763 | szFile, nLine); | |
764 | ||
765 | if ( szMsg != NULL ) { | |
766 | wxStrcat(szBuf, wxT(": ")); | |
767 | wxStrcat(szBuf, szMsg); | |
768 | } | |
769 | else { | |
770 | wxStrcat(szBuf, wxT(".")); | |
771 | } | |
772 | ||
773 | if ( !s_bNoAsserts ) { | |
774 | // send it to the normal log destination | |
775 | wxLogDebug(szBuf); | |
776 | ||
777 | #if (wxUSE_GUI && wxUSE_MSGDLG) || defined(__WXMSW__) | |
778 | // this message is intentionally not translated - it is for | |
779 | // developpers only | |
780 | wxStrcat(szBuf, wxT("\nDo you want to stop the program?\nYou can also choose [Cancel] to suppress further warnings.")); | |
781 | ||
782 | // use the native message box if available: this is more robust than | |
783 | // using our own | |
784 | #if defined(__WXMSW__) && !defined(__WXMICROWIN__) | |
785 | switch ( ::MessageBox(NULL, szBuf, _T("Debug"), | |
786 | MB_YESNOCANCEL | MB_ICONSTOP ) ) { | |
787 | case IDYES: | |
788 | wxTrap(); | |
789 | break; | |
790 | ||
791 | case IDCANCEL: | |
792 | s_bNoAsserts = TRUE; | |
793 | break; | |
794 | ||
795 | //case IDNO: nothing to do | |
796 | } | |
797 | #else // !MSW | |
798 | switch ( wxMessageBox(szBuf, wxT("Debug"), | |
799 | wxYES_NO | wxCANCEL | wxICON_STOP ) ) { | |
800 | case wxYES: | |
801 | wxTrap(); | |
802 | break; | |
803 | ||
804 | case wxCANCEL: | |
805 | s_bNoAsserts = TRUE; | |
806 | break; | |
807 | ||
808 | //case wxNO: nothing to do | |
809 | } | |
810 | #endif // GUI or MSW | |
811 | ||
812 | #else // !GUI | |
813 | wxTrap(); | |
814 | #endif // GUI/!GUI | |
815 | } | |
816 | ||
817 | s_bInAssert = FALSE; | |
818 | } | |
819 | ||
820 | #endif //WXDEBUG | |
821 | ||
822 | #endif //wxUSE_LOG |