| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/log.h |
| 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 licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifndef _WX_LOG_H_ |
| 13 | #define _WX_LOG_H_ |
| 14 | |
| 15 | #include "wx/defs.h" |
| 16 | |
| 17 | // ---------------------------------------------------------------------------- |
| 18 | // common constants for use in wxUSE_LOG/!wxUSE_LOG |
| 19 | // ---------------------------------------------------------------------------- |
| 20 | |
| 21 | // the trace masks have been superceded by symbolic trace constants, they're |
| 22 | // for compatibility only andwill be removed soon - do NOT use them |
| 23 | |
| 24 | // meaning of different bits of the trace mask (which allows selectively |
| 25 | // enable/disable some trace messages) |
| 26 | #define wxTraceMemAlloc 0x0001 // trace memory allocation (new/delete) |
| 27 | #define wxTraceMessages 0x0002 // trace window messages/X callbacks |
| 28 | #define wxTraceResAlloc 0x0004 // trace GDI resource allocation |
| 29 | #define wxTraceRefCount 0x0008 // trace various ref counting operations |
| 30 | |
| 31 | #ifdef __WXMSW__ |
| 32 | #define wxTraceOleCalls 0x0100 // OLE interface calls |
| 33 | #endif |
| 34 | |
| 35 | // ---------------------------------------------------------------------------- |
| 36 | // types |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | |
| 39 | // NB: these types are needed even if wxUSE_LOG == 0 |
| 40 | typedef unsigned long wxTraceMask; |
| 41 | typedef unsigned long wxLogLevel; |
| 42 | |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | // headers |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | |
| 47 | #include "wx/string.h" |
| 48 | |
| 49 | #if wxUSE_LOG |
| 50 | |
| 51 | #include "wx/arrstr.h" |
| 52 | |
| 53 | #ifndef __WXWINCE__ |
| 54 | #include <time.h> // for time_t |
| 55 | #endif |
| 56 | |
| 57 | #include "wx/dynarray.h" |
| 58 | |
| 59 | #ifndef wxUSE_LOG_DEBUG |
| 60 | # ifdef __WXDEBUG__ |
| 61 | # define wxUSE_LOG_DEBUG 1 |
| 62 | # else // !__WXDEBUG__ |
| 63 | # define wxUSE_LOG_DEBUG 0 |
| 64 | # endif |
| 65 | #endif |
| 66 | |
| 67 | // ---------------------------------------------------------------------------- |
| 68 | // forward declarations |
| 69 | // ---------------------------------------------------------------------------- |
| 70 | |
| 71 | #if wxUSE_GUI |
| 72 | class WXDLLIMPEXP_CORE wxTextCtrl; |
| 73 | class WXDLLIMPEXP_CORE wxLogFrame; |
| 74 | class WXDLLIMPEXP_CORE wxFrame; |
| 75 | class WXDLLIMPEXP_CORE wxWindow; |
| 76 | #endif // wxUSE_GUI |
| 77 | |
| 78 | // ---------------------------------------------------------------------------- |
| 79 | // constants |
| 80 | // ---------------------------------------------------------------------------- |
| 81 | |
| 82 | // different standard log levels (you may also define your own) |
| 83 | enum |
| 84 | { |
| 85 | wxLOG_FatalError, // program can't continue, abort immediately |
| 86 | wxLOG_Error, // a serious error, user must be informed about it |
| 87 | wxLOG_Warning, // user is normally informed about it but may be ignored |
| 88 | wxLOG_Message, // normal message (i.e. normal output of a non GUI app) |
| 89 | wxLOG_Status, // informational: might go to the status line of GUI app |
| 90 | wxLOG_Info, // informational message (a.k.a. 'Verbose') |
| 91 | wxLOG_Debug, // never shown to the user, disabled in release mode |
| 92 | wxLOG_Trace, // trace messages are also only enabled in debug mode |
| 93 | wxLOG_Progress, // used for progress indicator (not yet) |
| 94 | wxLOG_User = 100, // user defined levels start here |
| 95 | wxLOG_Max = 10000 |
| 96 | }; |
| 97 | |
| 98 | // symbolic trace masks - wxLogTrace("foo", "some trace message...") will be |
| 99 | // discarded unless the string "foo" has been added to the list of allowed |
| 100 | // ones with AddTraceMask() |
| 101 | |
| 102 | #define wxTRACE_MemAlloc wxT("memalloc") // trace memory allocation (new/delete) |
| 103 | #define wxTRACE_Messages wxT("messages") // trace window messages/X callbacks |
| 104 | #define wxTRACE_ResAlloc wxT("resalloc") // trace GDI resource allocation |
| 105 | #define wxTRACE_RefCount wxT("refcount") // trace various ref counting operations |
| 106 | |
| 107 | #ifdef __WXMSW__ |
| 108 | #define wxTRACE_OleCalls wxT("ole") // OLE interface calls |
| 109 | #endif |
| 110 | |
| 111 | #include "wx/iosfwrap.h" |
| 112 | |
| 113 | // ---------------------------------------------------------------------------- |
| 114 | // derive from this class to redirect (or suppress, or ...) log messages |
| 115 | // normally, only a single instance of this class exists but it's not enforced |
| 116 | // ---------------------------------------------------------------------------- |
| 117 | |
| 118 | class WXDLLIMPEXP_BASE wxLog |
| 119 | { |
| 120 | public: |
| 121 | // ctor |
| 122 | wxLog(){} |
| 123 | |
| 124 | // Internal buffer. |
| 125 | |
| 126 | // Allow replacement of the fixed size static buffer with |
| 127 | // a user allocated one. Pass in NULL to restore the |
| 128 | // built in static buffer. |
| 129 | static wxChar *SetLogBuffer( wxChar *buf, size_t size = 0 ); |
| 130 | |
| 131 | // these functions allow to completely disable all log messages |
| 132 | |
| 133 | // is logging disabled now? |
| 134 | static bool IsEnabled() { return ms_doLog; } |
| 135 | |
| 136 | // change the flag state, return the previous one |
| 137 | static bool EnableLogging(bool doIt = true) |
| 138 | { bool doLogOld = ms_doLog; ms_doLog = doIt; return doLogOld; } |
| 139 | |
| 140 | // static sink function - see DoLog() for function to overload in the |
| 141 | // derived classes |
| 142 | static void OnLog(wxLogLevel level, const wxChar *szString, time_t t) |
| 143 | { |
| 144 | if ( IsEnabled() && ms_logLevel >= level ) |
| 145 | { |
| 146 | wxLog *pLogger = GetActiveTarget(); |
| 147 | if ( pLogger ) |
| 148 | pLogger->DoLog(level, szString, t); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | // message buffering |
| 153 | |
| 154 | // flush shows all messages if they're not logged immediately (FILE |
| 155 | // and iostream logs don't need it, but wxGuiLog does to avoid showing |
| 156 | // 17 modal dialogs one after another) |
| 157 | virtual void Flush(); |
| 158 | |
| 159 | // flush the active target if any |
| 160 | static void FlushActive() |
| 161 | { |
| 162 | if ( !ms_suspendCount ) |
| 163 | { |
| 164 | wxLog *log = GetActiveTarget(); |
| 165 | if ( log ) |
| 166 | log->Flush(); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | // only one sink is active at each moment |
| 171 | // get current log target, will call wxApp::CreateLogTarget() to |
| 172 | // create one if none exists |
| 173 | static wxLog *GetActiveTarget(); |
| 174 | |
| 175 | // change log target, pLogger may be NULL |
| 176 | static wxLog *SetActiveTarget(wxLog *pLogger); |
| 177 | |
| 178 | // suspend the message flushing of the main target until the next call |
| 179 | // to Resume() - this is mainly for internal use (to prevent wxYield() |
| 180 | // from flashing the messages) |
| 181 | static void Suspend() { ms_suspendCount++; } |
| 182 | |
| 183 | // must be called for each Suspend()! |
| 184 | static void Resume() { ms_suspendCount--; } |
| 185 | |
| 186 | // functions controlling the default wxLog behaviour |
| 187 | // verbose mode is activated by standard command-line '-verbose' |
| 188 | // option |
| 189 | static void SetVerbose(bool bVerbose = true) { ms_bVerbose = bVerbose; } |
| 190 | |
| 191 | // Set log level. Log messages with level > logLevel will not be logged. |
| 192 | static void SetLogLevel(wxLogLevel logLevel) { ms_logLevel = logLevel; } |
| 193 | |
| 194 | // should GetActiveTarget() try to create a new log object if the |
| 195 | // current is NULL? |
| 196 | static void DontCreateOnDemand(); |
| 197 | |
| 198 | // trace mask (see wxTraceXXX constants for details) |
| 199 | static void SetTraceMask(wxTraceMask ulMask) { ms_ulTraceMask = ulMask; } |
| 200 | |
| 201 | // add string trace mask |
| 202 | static void AddTraceMask(const wxString& str) |
| 203 | { ms_aTraceMasks.push_back(str); } |
| 204 | |
| 205 | // add string trace mask |
| 206 | static void RemoveTraceMask(const wxString& str); |
| 207 | |
| 208 | // remove all string trace masks |
| 209 | static void ClearTraceMasks(); |
| 210 | |
| 211 | // get string trace masks |
| 212 | static const wxArrayString &GetTraceMasks() { return ms_aTraceMasks; } |
| 213 | |
| 214 | // sets the timestamp string: this is used as strftime() format string |
| 215 | // for the log targets which add time stamps to the messages - set it |
| 216 | // to NULL to disable time stamping completely. |
| 217 | static void SetTimestamp(const wxChar *ts) { ms_timestamp = ts; } |
| 218 | |
| 219 | |
| 220 | // accessors |
| 221 | |
| 222 | // gets the verbose status |
| 223 | static bool GetVerbose() { return ms_bVerbose; } |
| 224 | |
| 225 | // get trace mask |
| 226 | static wxTraceMask GetTraceMask() { return ms_ulTraceMask; } |
| 227 | |
| 228 | // is this trace mask in the list? |
| 229 | static bool IsAllowedTraceMask(const wxChar *mask); |
| 230 | |
| 231 | // return the current loglevel limit |
| 232 | static wxLogLevel GetLogLevel() { return ms_logLevel; } |
| 233 | |
| 234 | // get the current timestamp format string (may be NULL) |
| 235 | static const wxChar *GetTimestamp() { return ms_timestamp; } |
| 236 | |
| 237 | |
| 238 | // helpers |
| 239 | |
| 240 | // put the time stamp into the string if ms_timestamp != NULL (don't |
| 241 | // change it otherwise) |
| 242 | static void TimeStamp(wxString *str); |
| 243 | |
| 244 | // make dtor virtual for all derived classes |
| 245 | virtual ~wxLog() { } |
| 246 | |
| 247 | |
| 248 | // this method exists for backwards compatibility only, don't use |
| 249 | bool HasPendingMessages() const { return true; } |
| 250 | |
| 251 | protected: |
| 252 | // the logging functions that can be overriden |
| 253 | |
| 254 | // default DoLog() prepends the time stamp and a prefix corresponding |
| 255 | // to the message to szString and then passes it to DoLogString() |
| 256 | virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); |
| 257 | |
| 258 | // default DoLogString does nothing but is not pure virtual because if |
| 259 | // you override DoLog() you might not need it at all |
| 260 | virtual void DoLogString(const wxChar *szString, time_t t); |
| 261 | |
| 262 | private: |
| 263 | // static variables |
| 264 | // ---------------- |
| 265 | |
| 266 | static wxLog *ms_pLogger; // currently active log sink |
| 267 | static bool ms_doLog; // false => all logging disabled |
| 268 | static bool ms_bAutoCreate; // create new log targets on demand? |
| 269 | static bool ms_bVerbose; // false => ignore LogInfo messages |
| 270 | |
| 271 | static wxLogLevel ms_logLevel; // limit logging to levels <= ms_logLevel |
| 272 | |
| 273 | static size_t ms_suspendCount; // if positive, logs are not flushed |
| 274 | |
| 275 | // format string for strftime(), if NULL, time stamping log messages is |
| 276 | // disabled |
| 277 | static const wxChar *ms_timestamp; |
| 278 | |
| 279 | static wxTraceMask ms_ulTraceMask; // controls wxLogTrace behaviour |
| 280 | static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace |
| 281 | }; |
| 282 | |
| 283 | // ---------------------------------------------------------------------------- |
| 284 | // "trivial" derivations of wxLog |
| 285 | // ---------------------------------------------------------------------------- |
| 286 | |
| 287 | // log everything to a buffer |
| 288 | class WXDLLIMPEXP_BASE wxLogBuffer : public wxLog |
| 289 | { |
| 290 | public: |
| 291 | wxLogBuffer() { } |
| 292 | |
| 293 | // get the string contents with all messages logged |
| 294 | const wxString& GetBuffer() const { return m_str; } |
| 295 | |
| 296 | // show the buffer contents to the user in the best possible way (this uses |
| 297 | // wxMessageOutputMessageBox) and clear it |
| 298 | virtual void Flush(); |
| 299 | |
| 300 | protected: |
| 301 | virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); |
| 302 | virtual void DoLogString(const wxChar *szString, time_t t); |
| 303 | |
| 304 | private: |
| 305 | wxString m_str; |
| 306 | |
| 307 | DECLARE_NO_COPY_CLASS(wxLogBuffer) |
| 308 | }; |
| 309 | |
| 310 | |
| 311 | // log everything to a "FILE *", stderr by default |
| 312 | class WXDLLIMPEXP_BASE wxLogStderr : public wxLog |
| 313 | { |
| 314 | public: |
| 315 | // redirect log output to a FILE |
| 316 | wxLogStderr(FILE *fp = (FILE *) NULL); |
| 317 | |
| 318 | protected: |
| 319 | // implement sink function |
| 320 | virtual void DoLogString(const wxChar *szString, time_t t); |
| 321 | |
| 322 | FILE *m_fp; |
| 323 | |
| 324 | DECLARE_NO_COPY_CLASS(wxLogStderr) |
| 325 | }; |
| 326 | |
| 327 | #if wxUSE_STD_IOSTREAM |
| 328 | |
| 329 | // log everything to an "ostream", cerr by default |
| 330 | class WXDLLIMPEXP_BASE wxLogStream : public wxLog |
| 331 | { |
| 332 | public: |
| 333 | // redirect log output to an ostream |
| 334 | wxLogStream(wxSTD ostream *ostr = (wxSTD ostream *) NULL); |
| 335 | |
| 336 | protected: |
| 337 | // implement sink function |
| 338 | virtual void DoLogString(const wxChar *szString, time_t t); |
| 339 | |
| 340 | // using ptr here to avoid including <iostream.h> from this file |
| 341 | wxSTD ostream *m_ostr; |
| 342 | }; |
| 343 | |
| 344 | #endif // wxUSE_STD_IOSTREAM |
| 345 | |
| 346 | // ---------------------------------------------------------------------------- |
| 347 | // /dev/null log target: suppress logging until this object goes out of scope |
| 348 | // ---------------------------------------------------------------------------- |
| 349 | |
| 350 | // example of usage: |
| 351 | /* |
| 352 | void Foo() |
| 353 | { |
| 354 | wxFile file; |
| 355 | |
| 356 | // wxFile.Open() normally complains if file can't be opened, we don't |
| 357 | // want it |
| 358 | wxLogNull logNo; |
| 359 | |
| 360 | if ( !file.Open("bar") ) |
| 361 | ... process error ourselves ... |
| 362 | |
| 363 | // ~wxLogNull called, old log sink restored |
| 364 | } |
| 365 | */ |
| 366 | class WXDLLIMPEXP_BASE wxLogNull |
| 367 | { |
| 368 | public: |
| 369 | wxLogNull() : m_flagOld(wxLog::EnableLogging(false)) { } |
| 370 | ~wxLogNull() { (void)wxLog::EnableLogging(m_flagOld); } |
| 371 | |
| 372 | private: |
| 373 | bool m_flagOld; // the previous value of the wxLog::ms_doLog |
| 374 | }; |
| 375 | |
| 376 | // ---------------------------------------------------------------------------- |
| 377 | // chaining log target: installs itself as a log target and passes all |
| 378 | // messages to the real log target given to it in the ctor but also forwards |
| 379 | // them to the previously active one |
| 380 | // |
| 381 | // note that you don't have to call SetActiveTarget() with this class, it |
| 382 | // does it itself in its ctor |
| 383 | // ---------------------------------------------------------------------------- |
| 384 | |
| 385 | class WXDLLIMPEXP_BASE wxLogChain : public wxLog |
| 386 | { |
| 387 | public: |
| 388 | wxLogChain(wxLog *logger); |
| 389 | virtual ~wxLogChain(); |
| 390 | |
| 391 | // change the new log target |
| 392 | void SetLog(wxLog *logger); |
| 393 | |
| 394 | // this can be used to temporarily disable (and then reenable) passing |
| 395 | // messages to the old logger (by default we do pass them) |
| 396 | void PassMessages(bool bDoPass) { m_bPassMessages = bDoPass; } |
| 397 | |
| 398 | // are we passing the messages to the previous log target? |
| 399 | bool IsPassingMessages() const { return m_bPassMessages; } |
| 400 | |
| 401 | // return the previous log target (may be NULL) |
| 402 | wxLog *GetOldLog() const { return m_logOld; } |
| 403 | |
| 404 | // override base class version to flush the old logger as well |
| 405 | virtual void Flush(); |
| 406 | |
| 407 | protected: |
| 408 | // pass the chain to the old logger if needed |
| 409 | virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); |
| 410 | |
| 411 | private: |
| 412 | // the current log target |
| 413 | wxLog *m_logNew; |
| 414 | |
| 415 | // the previous log target |
| 416 | wxLog *m_logOld; |
| 417 | |
| 418 | // do we pass the messages to the old logger? |
| 419 | bool m_bPassMessages; |
| 420 | |
| 421 | DECLARE_NO_COPY_CLASS(wxLogChain) |
| 422 | }; |
| 423 | |
| 424 | // a chain log target which uses itself as the new logger |
| 425 | class WXDLLIMPEXP_BASE wxLogPassThrough : public wxLogChain |
| 426 | { |
| 427 | public: |
| 428 | wxLogPassThrough(); |
| 429 | |
| 430 | private: |
| 431 | DECLARE_NO_COPY_CLASS(wxLogPassThrough) |
| 432 | }; |
| 433 | |
| 434 | #if wxUSE_GUI |
| 435 | // include GUI log targets: |
| 436 | #include "wx/generic/logg.h" |
| 437 | #endif // wxUSE_GUI |
| 438 | |
| 439 | // ============================================================================ |
| 440 | // global functions |
| 441 | // ============================================================================ |
| 442 | |
| 443 | // ---------------------------------------------------------------------------- |
| 444 | // Log functions should be used by application instead of stdio, iostream &c |
| 445 | // for log messages for easy redirection |
| 446 | // ---------------------------------------------------------------------------- |
| 447 | |
| 448 | // ---------------------------------------------------------------------------- |
| 449 | // get error code/error message from system in a portable way |
| 450 | // ---------------------------------------------------------------------------- |
| 451 | |
| 452 | // return the last system error code |
| 453 | WXDLLIMPEXP_BASE unsigned long wxSysErrorCode(); |
| 454 | |
| 455 | // return the error message for given (or last if 0) error code |
| 456 | WXDLLIMPEXP_BASE const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0); |
| 457 | |
| 458 | // ---------------------------------------------------------------------------- |
| 459 | // define wxLog<level> |
| 460 | // ---------------------------------------------------------------------------- |
| 461 | |
| 462 | #define DECLARE_LOG_FUNCTION(level) \ |
| 463 | extern void WXDLLIMPEXP_BASE wxVLog##level(const wxChar *szFormat, \ |
| 464 | va_list argptr); \ |
| 465 | extern void WXDLLIMPEXP_BASE wxLog##level(const wxChar *szFormat, \ |
| 466 | ...) ATTRIBUTE_PRINTF_1 |
| 467 | #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \ |
| 468 | extern void expdecl wxVLog##level(argclass arg, \ |
| 469 | const wxChar *szFormat, \ |
| 470 | va_list argptr); \ |
| 471 | extern void expdecl wxLog##level(argclass arg, \ |
| 472 | const wxChar *szFormat, \ |
| 473 | ...) ATTRIBUTE_PRINTF_2 |
| 474 | #else // !wxUSE_LOG |
| 475 | |
| 476 | // log functions do nothing at all |
| 477 | #define DECLARE_LOG_FUNCTION(level) \ |
| 478 | inline void wxVLog##level(const wxChar *WXUNUSED(szFormat), \ |
| 479 | va_list WXUNUSED(argptr)) { } \ |
| 480 | inline void wxLog##level(const wxChar *WXUNUSED(szFormat), \ |
| 481 | ...) { } |
| 482 | #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \ |
| 483 | inline void wxVLog##level(argclass WXUNUSED(arg), \ |
| 484 | const wxChar *WXUNUSED(szFormat), \ |
| 485 | va_list WXUNUSED(argptr)) {} \ |
| 486 | inline void wxLog##level(argclass WXUNUSED(arg), \ |
| 487 | const wxChar *WXUNUSED(szFormat), \ |
| 488 | ...) { } |
| 489 | |
| 490 | // Empty Class to fake wxLogNull |
| 491 | class WXDLLIMPEXP_BASE wxLogNull |
| 492 | { |
| 493 | public: |
| 494 | wxLogNull() { } |
| 495 | }; |
| 496 | |
| 497 | // Dummy macros to replace some functions. |
| 498 | #define wxSysErrorCode() (unsigned long)0 |
| 499 | #define wxSysErrorMsg( X ) (const wxChar*)NULL |
| 500 | |
| 501 | // Fake symbolic trace masks... for those that are used frequently |
| 502 | #define wxTRACE_OleCalls wxEmptyString // OLE interface calls |
| 503 | |
| 504 | #endif // wxUSE_LOG/!wxUSE_LOG |
| 505 | #define DECLARE_LOG_FUNCTION2(level, argclass, arg) \ |
| 506 | DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, WXDLLIMPEXP_BASE) |
| 507 | |
| 508 | |
| 509 | // a generic function for all levels (level is passes as parameter) |
| 510 | DECLARE_LOG_FUNCTION2(Generic, wxLogLevel, level); |
| 511 | |
| 512 | // one function per each level |
| 513 | DECLARE_LOG_FUNCTION(FatalError); |
| 514 | DECLARE_LOG_FUNCTION(Error); |
| 515 | DECLARE_LOG_FUNCTION(Warning); |
| 516 | DECLARE_LOG_FUNCTION(Message); |
| 517 | DECLARE_LOG_FUNCTION(Info); |
| 518 | DECLARE_LOG_FUNCTION(Verbose); |
| 519 | |
| 520 | // this function sends the log message to the status line of the top level |
| 521 | // application frame, if any |
| 522 | DECLARE_LOG_FUNCTION(Status); |
| 523 | |
| 524 | #if wxUSE_GUI |
| 525 | // this one is the same as previous except that it allows to explicitly |
| 526 | class WXDLLEXPORT wxFrame; |
| 527 | // specify the frame to which the output should go |
| 528 | DECLARE_LOG_FUNCTION2_EXP(Status, wxFrame *, pFrame, WXDLLIMPEXP_CORE); |
| 529 | #endif // wxUSE_GUI |
| 530 | |
| 531 | // additional one: as wxLogError, but also logs last system call error code |
| 532 | // and the corresponding error message if available |
| 533 | DECLARE_LOG_FUNCTION(SysError); |
| 534 | |
| 535 | // and another one which also takes the error code (for those broken APIs |
| 536 | // that don't set the errno (like registry APIs in Win32)) |
| 537 | DECLARE_LOG_FUNCTION2(SysError, long, lErrCode); |
| 538 | |
| 539 | // debug functions do nothing in release mode |
| 540 | #if wxUSE_LOG_DEBUG |
| 541 | DECLARE_LOG_FUNCTION(Debug); |
| 542 | |
| 543 | // there is no more unconditional LogTrace: it is not different from |
| 544 | // LogDebug and it creates overload ambiguities |
| 545 | //DECLARE_LOG_FUNCTION(Trace); |
| 546 | |
| 547 | // this version only logs the message if the mask had been added to the |
| 548 | // list of masks with AddTraceMask() |
| 549 | DECLARE_LOG_FUNCTION2(Trace, const wxChar *, mask); |
| 550 | |
| 551 | // and this one does nothing if all of level bits are not set in |
| 552 | // wxLog::GetActive()->GetTraceMask() -- it's deprecated in favour of |
| 553 | // string identifiers |
| 554 | DECLARE_LOG_FUNCTION2(Trace, wxTraceMask, mask); |
| 555 | #else //!debug |
| 556 | // these functions do nothing in release builds |
| 557 | |
| 558 | // note that leaving out "fmt" in the vararg functions provokes a warning |
| 559 | // from SGI CC: "the last argument of the varargs function is unnamed" |
| 560 | inline void wxVLogDebug(const wxChar *, va_list) { } |
| 561 | inline void wxLogDebug(const wxChar *fmt, ...) { wxUnusedVar(fmt); } |
| 562 | inline void wxVLogTrace(wxTraceMask, const wxChar *, va_list) { } |
| 563 | inline void wxLogTrace(wxTraceMask, const wxChar *fmt, ...) { wxUnusedVar(fmt); } |
| 564 | inline void wxVLogTrace(const wxChar *, const wxChar *, va_list) { } |
| 565 | inline void wxLogTrace(const wxChar *, const wxChar *fmt, ...) { wxUnusedVar(fmt); } |
| 566 | #endif // debug/!debug |
| 567 | |
| 568 | // wxLogFatalError helper: show the (fatal) error to the user in a safe way, |
| 569 | // i.e. without using wxMessageBox() for example because it could crash |
| 570 | void WXDLLIMPEXP_BASE |
| 571 | wxSafeShowMessage(const wxString& title, const wxString& text); |
| 572 | |
| 573 | // ---------------------------------------------------------------------------- |
| 574 | // debug only logging functions: use them with API name and error code |
| 575 | // ---------------------------------------------------------------------------- |
| 576 | |
| 577 | #ifdef __WXDEBUG__ |
| 578 | // make life easier for people using VC++ IDE: clicking on the message |
| 579 | // will take us immediately to the place of the failed API |
| 580 | #ifdef __VISUALC__ |
| 581 | #define wxLogApiError(api, rc) \ |
| 582 | wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."), \ |
| 583 | __TFILE__, __LINE__, api, \ |
| 584 | (long)rc, wxSysErrorMsg(rc)) |
| 585 | #else // !VC++ |
| 586 | #define wxLogApiError(api, rc) \ |
| 587 | wxLogDebug(wxT("In file %s at line %d: '%s' failed with ") \ |
| 588 | wxT("error 0x%08lx (%s)."), \ |
| 589 | __TFILE__, __LINE__, api, \ |
| 590 | (long)rc, wxSysErrorMsg(rc)) |
| 591 | #endif // VC++/!VC++ |
| 592 | |
| 593 | #define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode()) |
| 594 | |
| 595 | #else //!debug |
| 596 | inline void wxLogApiError(const wxChar *, long) { } |
| 597 | inline void wxLogLastError(const wxChar *) { } |
| 598 | #endif //debug/!debug |
| 599 | |
| 600 | // wxCocoa has additiional trace masks |
| 601 | #if defined(__WXCOCOA__) |
| 602 | #include "wx/cocoa/log.h" |
| 603 | #endif |
| 604 | |
| 605 | #endif // _WX_LOG_H_ |
| 606 | |