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c801d85f 1/////////////////////////////////////////////////////////////////////////////
e4db172a 2// Name: src/common/log.cpp
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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>
65571936 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
dd85fc6b 19
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20// For compilers that support precompilation, includes "wx.h".
21#include "wx/wxprec.h"
22
23#ifdef __BORLANDC__
e2478fde 24 #pragma hdrstop
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25#endif
26
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27#if wxUSE_LOG
28
77ffb593 29// wxWidgets
c801d85f 30#ifndef WX_PRECOMP
e4db172a 31 #include "wx/log.h"
e90c1d2a 32 #include "wx/app.h"
df5168c4 33 #include "wx/arrstr.h"
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34 #include "wx/intl.h"
35 #include "wx/string.h"
de6185e2 36 #include "wx/utils.h"
9ef3052c 37#endif //WX_PRECOMP
c801d85f 38
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39#include "wx/apptrait.h"
40#include "wx/file.h"
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41#include "wx/msgout.h"
42#include "wx/textfile.h"
43#include "wx/thread.h"
e2478fde 44#include "wx/wxchar.h"
f94dfb38 45
c801d85f 46// other standard headers
1c193821 47#ifndef __WXWINCE__
e2478fde 48#include <errno.h>
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49#endif
50
e2478fde 51#include <stdlib.h>
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52
53#ifndef __WXWINCE__
e2478fde 54#include <time.h>
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55#else
56#include "wx/msw/wince/time.h"
57#endif
31907d03 58
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59#if defined(__WINDOWS__)
60 #include "wx/msw/private.h" // includes windows.h
61#endif
62
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63// ----------------------------------------------------------------------------
64// non member functions
65// ----------------------------------------------------------------------------
66
67// define this to enable wrapping of log messages
68//#define LOG_PRETTY_WRAP
69
9ef3052c 70#ifdef LOG_PRETTY_WRAP
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71 static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz);
72#endif
73
74// ============================================================================
75// implementation
76// ============================================================================
77
78// ----------------------------------------------------------------------------
b568d04f 79// globals
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80// ----------------------------------------------------------------------------
81
82// log functions can't allocate memory (LogError("out of memory...") should
83// work!), so we use a static buffer for all log messages
84#define LOG_BUFFER_SIZE (4096)
85
b568d04f 86// static buffer for error messages
04662def
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87static wxChar s_szBufStatic[LOG_BUFFER_SIZE];
88
89static wxChar *s_szBuf = s_szBufStatic;
90static size_t s_szBufSize = WXSIZEOF( s_szBufStatic );
c801d85f 91
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92#if wxUSE_THREADS
93
94// the critical section protecting the static buffer
95static wxCriticalSection gs_csLogBuf;
96
97#endif // wxUSE_THREADS
98
99// ----------------------------------------------------------------------------
100// implementation of Log functions
101//
102// NB: unfortunately we need all these distinct functions, we can't make them
103// macros and not all compilers inline vararg functions.
104// ----------------------------------------------------------------------------
105
ef0dd8e5 106// wrapper for wxVsnprintf(s_szBuf) which always NULL-terminates it
41f44cca 107static inline void PrintfInLogBuf(const wxChar *szFormat, va_list argptr)
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108{
109 if ( wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr) < 0 )
110 {
111 // must NUL-terminate it manually
112 s_szBuf[s_szBufSize - 1] = _T('\0');
113 }
114 //else: NUL-terminated by vsnprintf()
115}
116
c801d85f 117// generic log function
1d63fd6b 118void wxVLogGeneric(wxLogLevel level, const wxChar *szFormat, va_list argptr)
c801d85f 119{
d68d8590 120 if ( wxLog::IsEnabled() ) {
807a903e 121 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
9ef3052c 122
41f44cca 123 PrintfInLogBuf(szFormat, argptr);
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124
125 wxLog::OnLog(level, s_szBuf, time(NULL));
126 }
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127}
128
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129void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...)
130{
131 va_list argptr;
132 va_start(argptr, szFormat);
1d63fd6b 133 wxVLogGeneric(level, szFormat, argptr);
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134 va_end(argptr);
135}
136
807a903e 137#define IMPLEMENT_LOG_FUNCTION(level) \
1d63fd6b 138 void wxVLog##level(const wxChar *szFormat, va_list argptr) \
807a903e 139 { \
d68d8590 140 if ( wxLog::IsEnabled() ) { \
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141 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); \
142 \
41f44cca 143 PrintfInLogBuf(szFormat, argptr); \
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144 \
145 wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL)); \
146 } \
ea44a631 147 } \
ef0dd8e5 148 \
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149 void wxLog##level(const wxChar *szFormat, ...) \
150 { \
151 va_list argptr; \
152 va_start(argptr, szFormat); \
1800689f 153 wxVLog##level(szFormat, argptr); \
ea44a631 154 va_end(argptr); \
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155 }
156
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157IMPLEMENT_LOG_FUNCTION(Error)
158IMPLEMENT_LOG_FUNCTION(Warning)
159IMPLEMENT_LOG_FUNCTION(Message)
160IMPLEMENT_LOG_FUNCTION(Info)
161IMPLEMENT_LOG_FUNCTION(Status)
162
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163void wxSafeShowMessage(const wxString& title, const wxString& text)
164{
165#ifdef __WINDOWS__
166 ::MessageBox(NULL, text, title, MB_OK | MB_ICONSTOP);
167#else
168 wxFprintf(stderr, _T("%s: %s\n"), title.c_str(), text.c_str());
169#endif
170}
171
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172// fatal errors can't be suppressed nor handled by the custom log target and
173// always terminate the program
174void wxVLogFatalError(const wxChar *szFormat, va_list argptr)
175{
04662def 176 wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
1800689f 177
c11d62a6 178 wxSafeShowMessage(_T("Fatal Error"), s_szBuf);
1800689f 179
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180#ifdef __WXWINCE__
181 ExitThread(3);
182#else
1800689f 183 abort();
1c193821 184#endif
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185}
186
187void wxLogFatalError(const wxChar *szFormat, ...)
188{
189 va_list argptr;
190 va_start(argptr, szFormat);
191 wxVLogFatalError(szFormat, argptr);
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192
193 // some compilers warn about unreachable code and it shouldn't matter
194 // for the others anyhow...
195 //va_end(argptr);
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196}
197
9ef3052c 198// same as info, but only if 'verbose' mode is on
1d63fd6b 199void wxVLogVerbose(const wxChar *szFormat, va_list argptr)
9ef3052c 200{
d68d8590 201 if ( wxLog::IsEnabled() ) {
2a1f999f 202 if ( wxLog::GetActiveTarget() != NULL && wxLog::GetVerbose() ) {
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203 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
204
04662def 205 wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
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206
207 wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL));
208 }
209 }
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210}
211
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212void wxLogVerbose(const wxChar *szFormat, ...)
213{
214 va_list argptr;
215 va_start(argptr, szFormat);
1d63fd6b 216 wxVLogVerbose(szFormat, argptr);
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217 va_end(argptr);
218}
219
9ef3052c 220// debug functions
b2aef89b 221#ifdef __WXDEBUG__
807a903e 222#define IMPLEMENT_LOG_DEBUG_FUNCTION(level) \
1d63fd6b 223 void wxVLog##level(const wxChar *szFormat, va_list argptr) \
807a903e 224 { \
d68d8590 225 if ( wxLog::IsEnabled() ) { \
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226 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf); \
227 \
04662def 228 wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr); \
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229 \
230 wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL)); \
231 } \
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232 } \
233 void wxLog##level(const wxChar *szFormat, ...) \
234 { \
235 va_list argptr; \
236 va_start(argptr, szFormat); \
1d63fd6b 237 wxVLog##level(szFormat, argptr); \
ea44a631 238 va_end(argptr); \
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239 }
240
1d63fd6b 241 void wxVLogTrace(const wxChar *mask, const wxChar *szFormat, va_list argptr)
0fb67cd1 242 {
d68d8590 243 if ( wxLog::IsEnabled() && wxLog::IsAllowedTraceMask(mask) ) {
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244 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
245
00c4e897 246 wxChar *p = s_szBuf;
04662def 247 size_t len = s_szBufSize;
f6bcfd97 248 wxStrncpy(s_szBuf, _T("("), len);
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249 len -= 1; // strlen("(")
250 p += 1;
f6bcfd97 251 wxStrncat(p, mask, len);
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252 size_t lenMask = wxStrlen(mask);
253 len -= lenMask;
254 p += lenMask;
255
f6bcfd97 256 wxStrncat(p, _T(") "), len);
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257 len -= 2;
258 p += 2;
00c4e897 259
00c4e897 260 wxVsnprintf(p, len, szFormat, argptr);
d91535c4 261
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262 wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
263 }
264 }
265
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266 void wxLogTrace(const wxChar *mask, const wxChar *szFormat, ...)
267 {
268 va_list argptr;
269 va_start(argptr, szFormat);
1d63fd6b 270 wxVLogTrace(mask, szFormat, argptr);
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271 va_end(argptr);
272 }
273
1d63fd6b 274 void wxVLogTrace(wxTraceMask mask, const wxChar *szFormat, va_list argptr)
9ef3052c 275 {
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276 // we check that all of mask bits are set in the current mask, so
277 // that wxLogTrace(wxTraceRefCount | wxTraceOle) will only do something
278 // if both bits are set.
d68d8590 279 if ( wxLog::IsEnabled() && ((wxLog::GetTraceMask() & mask) == mask) ) {
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280 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
281
04662def 282 wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
9ef3052c 283
0fb67cd1 284 wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
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285 }
286 }
287
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288 void wxLogTrace(wxTraceMask mask, const wxChar *szFormat, ...)
289 {
290 va_list argptr;
291 va_start(argptr, szFormat);
1d63fd6b 292 wxVLogTrace(mask, szFormat, argptr);
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293 va_end(argptr);
294 }
295
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296#else // release
297 #define IMPLEMENT_LOG_DEBUG_FUNCTION(level)
298#endif
299
300IMPLEMENT_LOG_DEBUG_FUNCTION(Debug)
301IMPLEMENT_LOG_DEBUG_FUNCTION(Trace)
302
303// wxLogSysError: one uses the last error code, for other you must give it
304// explicitly
305
306// common part of both wxLogSysError
307void wxLogSysErrorHelper(long lErrCode)
c801d85f 308{
50920146 309 wxChar szErrMsg[LOG_BUFFER_SIZE / 2];
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310 wxSnprintf(szErrMsg, WXSIZEOF(szErrMsg),
311 _(" (error %ld: %s)"), lErrCode, wxSysErrorMsg(lErrCode));
04662def 312 wxStrncat(s_szBuf, szErrMsg, s_szBufSize - wxStrlen(s_szBuf));
c801d85f 313
0fb67cd1 314 wxLog::OnLog(wxLOG_Error, s_szBuf, time(NULL));
9ef3052c 315}
c801d85f 316
1d63fd6b 317void WXDLLEXPORT wxVLogSysError(const wxChar *szFormat, va_list argptr)
9ef3052c 318{
d68d8590 319 if ( wxLog::IsEnabled() ) {
807a903e 320 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
b568d04f 321
04662def 322 wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
9ef3052c 323
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324 wxLogSysErrorHelper(wxSysErrorCode());
325 }
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326}
327
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328void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...)
329{
330 va_list argptr;
331 va_start(argptr, szFormat);
1d63fd6b 332 wxVLogSysError(szFormat, argptr);
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333 va_end(argptr);
334}
335
1d63fd6b 336void WXDLLEXPORT wxVLogSysError(long lErrCode, const wxChar *szFormat, va_list argptr)
c801d85f 337{
d68d8590 338 if ( wxLog::IsEnabled() ) {
807a903e 339 wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
b568d04f 340
04662def 341 wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
c801d85f 342
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343 wxLogSysErrorHelper(lErrCode);
344 }
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345}
346
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347void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
348{
349 va_list argptr;
350 va_start(argptr, szFormat);
1d63fd6b 351 wxVLogSysError(lErrCode, szFormat, argptr);
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352 va_end(argptr);
353}
354
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355// ----------------------------------------------------------------------------
356// wxLog class implementation
357// ----------------------------------------------------------------------------
358
d91535c4 359wxChar *wxLog::SetLogBuffer( wxChar *buf, size_t size)
04662def
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360{
361 wxChar *oldbuf = s_szBuf;
362
363 if( buf == 0 )
364 {
365 s_szBuf = s_szBufStatic;
366 s_szBufSize = WXSIZEOF( s_szBufStatic );
367 }
368 else
369 {
370 s_szBuf = buf;
371 s_szBufSize = size;
372 }
373
374 return (oldbuf == s_szBufStatic ) ? 0 : oldbuf;
375}
376
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377wxLog *wxLog::GetActiveTarget()
378{
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379 if ( ms_bAutoCreate && ms_pLogger == NULL ) {
380 // prevent infinite recursion if someone calls wxLogXXX() from
381 // wxApp::CreateLogTarget()
f644b28c 382 static bool s_bInGetActiveTarget = false;
0fb67cd1 383 if ( !s_bInGetActiveTarget ) {
f644b28c 384 s_bInGetActiveTarget = true;
0fb67cd1 385
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386 // ask the application to create a log target for us
387 if ( wxTheApp != NULL )
dc6d5e38 388 ms_pLogger = wxTheApp->GetTraits()->CreateLogTarget();
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389 else
390 ms_pLogger = new wxLogStderr;
0fb67cd1 391
f644b28c 392 s_bInGetActiveTarget = false;
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393
394 // do nothing if it fails - what can we do?
395 }
275bf4c1 396 }
c801d85f 397
0fb67cd1 398 return ms_pLogger;
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399}
400
c085e333 401wxLog *wxLog::SetActiveTarget(wxLog *pLogger)
9ec05cc9 402{
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403 if ( ms_pLogger != NULL ) {
404 // flush the old messages before changing because otherwise they might
405 // get lost later if this target is not restored
406 ms_pLogger->Flush();
407 }
c801d85f 408
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409 wxLog *pOldLogger = ms_pLogger;
410 ms_pLogger = pLogger;
c085e333 411
0fb67cd1 412 return pOldLogger;
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413}
414
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415void wxLog::DontCreateOnDemand()
416{
f644b28c 417 ms_bAutoCreate = false;
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418
419 // this is usually called at the end of the program and we assume that it
420 // is *always* called at the end - so we free memory here to avoid false
421 // memory leak reports from wxWin memory tracking code
422 ClearTraceMasks();
423}
424
0fb67cd1 425void wxLog::RemoveTraceMask(const wxString& str)
c801d85f 426{
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427 int index = ms_aTraceMasks.Index(str);
428 if ( index != wxNOT_FOUND )
dc6d5e38 429 ms_aTraceMasks.RemoveAt((size_t)index);
0fb67cd1 430}
c801d85f 431
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432void wxLog::ClearTraceMasks()
433{
434 ms_aTraceMasks.Clear();
435}
436
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437void wxLog::TimeStamp(wxString *str)
438{
439 if ( ms_timestamp )
440 {
441 wxChar buf[256];
442 time_t timeNow;
443 (void)time(&timeNow);
c49245f8 444 wxStrftime(buf, WXSIZEOF(buf), ms_timestamp, localtime(&timeNow));
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445
446 str->Empty();
223d09f6 447 *str << buf << wxT(": ");
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448 }
449}
450
50920146 451void wxLog::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
0fb67cd1 452{
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453 switch ( level ) {
454 case wxLOG_FatalError:
786855a1 455 DoLogString(wxString(_("Fatal error: ")) + szString, t);
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456 DoLogString(_("Program aborted."), t);
457 Flush();
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458#ifdef __WXWINCE__
459 ExitThread(3);
460#else
0fb67cd1 461 abort();
1c193821 462#endif
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463 break;
464
465 case wxLOG_Error:
786855a1 466 DoLogString(wxString(_("Error: ")) + szString, t);
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467 break;
468
469 case wxLOG_Warning:
786855a1 470 DoLogString(wxString(_("Warning: ")) + szString, t);
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471 break;
472
473 case wxLOG_Info:
0fb67cd1 474 if ( GetVerbose() )
37278984 475 case wxLOG_Message:
87a1e308 476 case wxLOG_Status:
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477 default: // log unknown log levels too
478 DoLogString(szString, t);
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479 break;
480
481 case wxLOG_Trace:
482 case wxLOG_Debug:
483#ifdef __WXDEBUG__
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484 {
485 wxString msg = level == wxLOG_Trace ? wxT("Trace: ")
54a8f42b 486 : wxT("Debug: ");
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487 msg << szString;
488 DoLogString(msg, t);
489 }
490#endif // Debug
0fb67cd1 491 break;
0fb67cd1 492 }
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493}
494
74e3313b 495void wxLog::DoLogString(const wxChar *WXUNUSED(szString), time_t WXUNUSED(t))
c801d85f 496{
223d09f6 497 wxFAIL_MSG(wxT("DoLogString must be overriden if it's called."));
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498}
499
500void wxLog::Flush()
501{
1ec5cbf3 502 // nothing to do here
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503}
504
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505/*static*/ bool wxLog::IsAllowedTraceMask(const wxChar *mask)
506{
507 for ( wxArrayString::iterator it = ms_aTraceMasks.begin(),
508 en = ms_aTraceMasks.end();
509 it != en; ++it )
510 if ( *it == mask)
511 return true;
512 return false;
513}
514
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515// ----------------------------------------------------------------------------
516// wxLogBuffer implementation
517// ----------------------------------------------------------------------------
518
519void wxLogBuffer::Flush()
520{
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521 if ( !m_str.empty() )
522 {
523 wxMessageOutputBest out;
524 out.Printf(_T("%s"), m_str.c_str());
525 m_str.clear();
526 }
d3fc1755
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527}
528
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529void wxLogBuffer::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
530{
531 switch ( level )
532 {
533 case wxLOG_Trace:
534 case wxLOG_Debug:
535#ifdef __WXDEBUG__
536 // don't put debug messages in the buffer, we don't want to show
537 // them to the user in a msg box, log them immediately
538 {
539 wxString str;
540 TimeStamp(&str);
541 str += szString;
542
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543 wxMessageOutputDebug dbgout;
544 dbgout.Printf(_T("%s\n"), str.c_str());
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545 }
546#endif // __WXDEBUG__
547 break;
548
549 default:
550 wxLog::DoLog(level, szString, t);
551 }
552}
553
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554void wxLogBuffer::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
555{
556 m_str << szString << _T("\n");
557}
558
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559// ----------------------------------------------------------------------------
560// wxLogStderr class implementation
561// ----------------------------------------------------------------------------
562
563wxLogStderr::wxLogStderr(FILE *fp)
564{
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565 if ( fp == NULL )
566 m_fp = stderr;
567 else
568 m_fp = fp;
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569}
570
74e3313b 571void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
c801d85f 572{
d2e1ef19
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573 wxString str;
574 TimeStamp(&str);
b568d04f 575 str << szString;
1e8a4bc2 576
50920146 577 fputs(str.mb_str(), m_fp);
b568d04f 578 fputc(_T('\n'), m_fp);
0fb67cd1 579 fflush(m_fp);
1e8a4bc2 580
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581 // under GUI systems such as Windows or Mac, programs usually don't have
582 // stderr at all, so show the messages also somewhere else, typically in
583 // the debugger window so that they go at least somewhere instead of being
584 // simply lost
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585 if ( m_fp == stderr )
586 {
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587 wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
588 if ( traits && !traits->HasStderr() )
589 {
254a2129 590 wxMessageOutputDebug dbgout;
30413fd0 591 dbgout.Printf(_T("%s\n"), str.c_str());
e2478fde 592 }
03147cd0 593 }
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594}
595
596// ----------------------------------------------------------------------------
597// wxLogStream implementation
598// ----------------------------------------------------------------------------
599
4bf78aae 600#if wxUSE_STD_IOSTREAM
65f19af1 601#include "wx/ioswrap.h"
dd107c50 602wxLogStream::wxLogStream(wxSTD ostream *ostr)
c801d85f 603{
0fb67cd1 604 if ( ostr == NULL )
dd107c50 605 m_ostr = &wxSTD cerr;
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606 else
607 m_ostr = ostr;
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608}
609
74e3313b 610void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
c801d85f 611{
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612 wxString str;
613 TimeStamp(&str);
416f9764 614 (*m_ostr) << wxConvertWX2MB(str) << wxConvertWX2MB(szString) << wxSTD endl;
c801d85f 615}
0fb67cd1 616#endif // wxUSE_STD_IOSTREAM
c801d85f 617
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618// ----------------------------------------------------------------------------
619// wxLogChain
620// ----------------------------------------------------------------------------
621
622wxLogChain::wxLogChain(wxLog *logger)
623{
f644b28c 624 m_bPassMessages = true;
71debe95 625
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626 m_logNew = logger;
627 m_logOld = wxLog::SetActiveTarget(this);
628}
629
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630wxLogChain::~wxLogChain()
631{
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632 delete m_logOld;
633
634 if ( m_logNew != this )
635 delete m_logNew;
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636}
637
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638void wxLogChain::SetLog(wxLog *logger)
639{
640 if ( m_logNew != this )
641 delete m_logNew;
642
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643 m_logNew = logger;
644}
645
646void wxLogChain::Flush()
647{
648 if ( m_logOld )
649 m_logOld->Flush();
650
1ec5cbf3 651 // be careful to avoid infinite recursion
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652 if ( m_logNew && m_logNew != this )
653 m_logNew->Flush();
654}
655
656void wxLogChain::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
657{
658 // let the previous logger show it
659 if ( m_logOld && IsPassingMessages() )
660 {
661 // bogus cast just to access protected DoLog
662 ((wxLogChain *)m_logOld)->DoLog(level, szString, t);
663 }
664
665 if ( m_logNew && m_logNew != this )
666 {
667 // as above...
668 ((wxLogChain *)m_logNew)->DoLog(level, szString, t);
669 }
670}
671
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672// ----------------------------------------------------------------------------
673// wxLogPassThrough
674// ----------------------------------------------------------------------------
675
676#ifdef __VISUALC__
677 // "'this' : used in base member initializer list" - so what?
678 #pragma warning(disable:4355)
679#endif // VC++
680
681wxLogPassThrough::wxLogPassThrough()
682 : wxLogChain(this)
683{
684}
685
686#ifdef __VISUALC__
687 #pragma warning(default:4355)
688#endif // VC++
689
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690// ============================================================================
691// Global functions/variables
692// ============================================================================
693
694// ----------------------------------------------------------------------------
695// static variables
696// ----------------------------------------------------------------------------
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697
698wxLog *wxLog::ms_pLogger = (wxLog *)NULL;
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699bool wxLog::ms_doLog = true;
700bool wxLog::ms_bAutoCreate = true;
701bool wxLog::ms_bVerbose = false;
d2e1ef19 702
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703wxLogLevel wxLog::ms_logLevel = wxLOG_Max; // log everything by default
704
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705size_t wxLog::ms_suspendCount = 0;
706
e2478fde 707const wxChar *wxLog::ms_timestamp = wxT("%X"); // time only, no date
d2e1ef19 708
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709wxTraceMask wxLog::ms_ulTraceMask = (wxTraceMask)0;
710wxArrayString wxLog::ms_aTraceMasks;
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711
712// ----------------------------------------------------------------------------
713// stdout error logging helper
714// ----------------------------------------------------------------------------
715
716// helper function: wraps the message and justifies it under given position
717// (looks more pretty on the terminal). Also adds newline at the end.
718//
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719// TODO this is now disabled until I find a portable way of determining the
720// terminal window size (ok, I found it but does anybody really cares?)
721#ifdef LOG_PRETTY_WRAP
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722static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz)
723{
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724 size_t nMax = 80; // FIXME
725 size_t nStart = strlen(pszPrefix);
726 fputs(pszPrefix, f);
727
728 size_t n;
729 while ( *psz != '\0' ) {
730 for ( n = nStart; (n < nMax) && (*psz != '\0'); n++ )
731 putc(*psz++, f);
732
733 // wrapped?
734 if ( *psz != '\0' ) {
735 /*putc('\n', f);*/
736 for ( n = 0; n < nStart; n++ )
737 putc(' ', f);
738
739 // as we wrapped, squeeze all white space
740 while ( isspace(*psz) )
741 psz++;
742 }
c801d85f 743 }
c801d85f 744
0fb67cd1 745 putc('\n', f);
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746}
747#endif //LOG_PRETTY_WRAP
748
749// ----------------------------------------------------------------------------
750// error code/error message retrieval functions
751// ----------------------------------------------------------------------------
752
753// get error code from syste
754unsigned long wxSysErrorCode()
755{
8cb172b4 756#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
0fb67cd1 757 return ::GetLastError();
0fb67cd1 758#else //Unix
c801d85f 759 return errno;
0fb67cd1 760#endif //Win/Unix
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761}
762
763// get error message from system
50920146 764const wxChar *wxSysErrorMsg(unsigned long nErrCode)
c801d85f 765{
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766 if ( nErrCode == 0 )
767 nErrCode = wxSysErrorCode();
768
8cb172b4 769#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
50920146 770 static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
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771
772 // get error message from system
773 LPVOID lpMsgBuf;
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774 if ( ::FormatMessage
775 (
776 FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
777 NULL,
778 nErrCode,
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779 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
780 (LPTSTR)&lpMsgBuf,
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781 0,
782 NULL
783 ) == 0 )
784 {
785 // if this happens, something is seriously wrong, so don't use _() here
786 // for safety
787 wxSprintf(s_szBuf, _T("unknown error %lx"), nErrCode);
c4b401b6 788 return s_szBuf;
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789 }
790
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791
792 // copy it to our buffer and free memory
d0822e56 793 // Crashes on SmartPhone (FIXME)
0c44ec97 794#if !defined(__SMARTPHONE__) /* of WinCE */
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795 if( lpMsgBuf != 0 )
796 {
8c5b1f0f 797 wxStrncpy(s_szBuf, (const wxChar *)lpMsgBuf, WXSIZEOF(s_szBuf) - 1);
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798 s_szBuf[WXSIZEOF(s_szBuf) - 1] = wxT('\0');
799
800 LocalFree(lpMsgBuf);
801
802 // returned string is capitalized and ended with '\r\n' - bad
803 s_szBuf[0] = (wxChar)wxTolower(s_szBuf[0]);
804 size_t len = wxStrlen(s_szBuf);
805 if ( len > 0 ) {
806 // truncate string
807 if ( s_szBuf[len - 2] == wxT('\r') )
808 s_szBuf[len - 2] = wxT('\0');
809 }
810 }
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811 else
812#endif
813 {
8c5b1f0f 814 s_szBuf[0] = wxT('\0');
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815 }
816
817 return s_szBuf;
3a5bcc4d 818#else // Unix-WXMICROWIN
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819#if wxUSE_UNICODE
820 static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
dcf924a3 821 wxConvCurrent->MB2WC(s_szBuf, strerror(nErrCode), WXSIZEOF(s_szBuf) -1);
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822 return s_szBuf;
823#else
13111b2a 824 return strerror((int)nErrCode);
50920146 825#endif
3a5bcc4d 826#endif // Win/Unix-WXMICROWIN
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827}
828
e2478fde 829#endif // wxUSE_LOG