small optimization in wxConfigPathChanger: don't change the path if it is already...

[wxWidgets.git] / src / common / log.cpp

diff --git a/src/common/log.cpp b/src/common/log.cpp
index f811d2b15d124c0117a9d8289a218e61529204f5..6d6bfde0bd2078b9c2aa8910d8d122e0411e8fa9 100644 (file)
--- a/src/common/log.cpp
+++ b/src/common/log.cpp
@@ -6,7 +6,7 @@
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================


@@ -17,50 +17,52 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
-  #pragma implementation "log.h"
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+    #pragma implementation "log.h"

 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-  #pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

-// wxWindows
+#if wxUSE_LOG
+
+// wxWidgets

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

-  #include "wx/window.h"
-  #ifdef __WXMSW__
-    #include "wx/msw/private.h"
-  #endif
-  #include  "wx/event.h"
-  #include  "wx/app.h"
-  #include  "wx/string.h"
-  #include  "wx/intl.h"
-  #ifndef wxUSE_NOGUI
-    #include "wx/msgdlg.h"
-  #endif  
+    #include "wx/app.h"
+    #include "wx/arrstr.h"
+    #include "wx/intl.h"
+    #include "wx/string.h"

 #endif //WX_PRECOMP
 
 #endif //WX_PRECOMP
 

-#include  "wx/file.h"
-#include  "wx/textfile.h"
-#include  "wx/utils.h"
-#include  "wx/wxchar.h"
-#include  "wx/log.h"
+#include "wx/apptrait.h"
+#include "wx/file.h"
+#include "wx/log.h"
+#include "wx/msgout.h"
+#include "wx/textfile.h"
+#include "wx/thread.h"
+#include "wx/utils.h"
+#include "wx/wxchar.h"

 
 // other standard headers
 
 // other standard headers

-#include  <errno.h>
-#include  <stdlib.h>
-#include  <time.h>
-
-#ifdef  __WXMSW__
-  #include  <windows.h>
-  // Redefines OutputDebugString if necessary
-  #include  "wx/msw/private.h"
-#else   //Unix
-  #include  <signal.h>
-#endif  //Win/Unix
+#ifndef __WXWINCE__
+#include <errno.h>
+#endif
+
+#include <stdlib.h>
+
+#ifndef __WXWINCE__
+#include <time.h>
+#else
+#include "wx/msw/wince/time.h"
+#endif
+
+#if defined(__WINDOWS__)
+    #include "wx/msw/private.h" // includes windows.h
+#endif

 
 // ----------------------------------------------------------------------------
 // non member functions
 
 // ----------------------------------------------------------------------------
 // non member functions


@@ -78,112 +80,230 @@
 // ============================================================================
 
 // ----------------------------------------------------------------------------
 // ============================================================================
 
 // ----------------------------------------------------------------------------

-// implementation of Log functions
-//
-// NB: unfortunately we need all these distinct functions, we can't make them
-//     macros and not all compilers inline vararg functions.
+// globals

 // ----------------------------------------------------------------------------
 
 // log functions can't allocate memory (LogError("out of memory...") should
 // work!), so we use a static buffer for all log messages
 #define LOG_BUFFER_SIZE   (4096)
 
 // ----------------------------------------------------------------------------
 
 // log functions can't allocate memory (LogError("out of memory...") should
 // work!), so we use a static buffer for all log messages
 #define LOG_BUFFER_SIZE   (4096)
 

-// static buffer for error messages (FIXME MT-unsafe)
-static wxChar s_szBuf[LOG_BUFFER_SIZE];
+// static buffer for error messages
+static wxChar   s_szBufStatic[LOG_BUFFER_SIZE];
+
+static wxChar  *s_szBuf     = s_szBufStatic;
+static size_t   s_szBufSize = WXSIZEOF( s_szBufStatic );
+
+#if wxUSE_THREADS
+
+// the critical section protecting the static buffer
+static wxCriticalSection gs_csLogBuf;
+
+#endif // wxUSE_THREADS
+
+// return true if we have a non NULL non disabled log target
+static inline bool IsLoggingEnabled()
+{
+    return wxLog::IsEnabled() && (wxLog::GetActiveTarget() != NULL);
+}
+
+// ----------------------------------------------------------------------------
+// implementation of Log functions
+//
+// NB: unfortunately we need all these distinct functions, we can't make them
+//     macros and not all compilers inline vararg functions.
+// ----------------------------------------------------------------------------
+
+// wrapper for wxVsnprintf(s_szBuf) which always NULL-terminates it
+static inline void PrintfInLogBug(const wxChar *szFormat, va_list argptr)
+{
+    if ( wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr) < 0 )
+    {
+        // must NUL-terminate it manually
+        s_szBuf[s_szBufSize - 1] = _T('\0');
+    }
+    //else: NUL-terminated by vsnprintf()
+}

 
 // generic log function
 
 // generic log function

+void wxVLogGeneric(wxLogLevel level, const wxChar *szFormat, va_list argptr)
+{
+    if ( IsLoggingEnabled() ) {
+        wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+        PrintfInLogBug(szFormat, argptr);
+
+        wxLog::OnLog(level, s_szBuf, time(NULL));
+    }
+}
+

 void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...)
 {
 void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...)
 {

-  if ( wxLog::GetActiveTarget() != NULL ) {

     va_list argptr;
     va_start(argptr, szFormat);
     va_list argptr;
     va_start(argptr, szFormat);

-    wxVsprintf(s_szBuf, szFormat, argptr);
+    wxVLogGeneric(level, szFormat, argptr);

     va_end(argptr);
     va_end(argptr);

-
-    wxLog::OnLog(level, s_szBuf, time(NULL));
-  }

 }
 
 }
 

-#define IMPLEMENT_LOG_FUNCTION(level)                             \
-  void wxLog##level(const wxChar *szFormat, ...)                  \
-  {                                                               \
-    if ( wxLog::GetActiveTarget() != NULL ) {                     \
-      va_list argptr;                                             \
-      va_start(argptr, szFormat);                                 \
-      wxVsprintf(s_szBuf, szFormat, argptr);                      \
-      va_end(argptr);                                             \
-                                                                  \
-      wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL));           \
-    }                                                             \
+#define IMPLEMENT_LOG_FUNCTION(level)                               \
+  void wxVLog##level(const wxChar *szFormat, va_list argptr)        \
+  {                                                                 \
+    if ( IsLoggingEnabled() ) {                                     \
+      wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);                      \
+                                                                    \
+      PrintfInLogBug(szFormat, argptr);                             \
+                                                                    \
+      wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL));             \
+    }                                                               \
+  }                                                                 \
+                                                                    \
+  void wxLog##level(const wxChar *szFormat, ...)                    \
+  {                                                                 \
+    va_list argptr;                                                 \
+    va_start(argptr, szFormat);                                     \
+    wxVLog##level(szFormat, argptr);                                \
+    va_end(argptr);                                                 \

   }
 
   }
 

-IMPLEMENT_LOG_FUNCTION(FatalError)

 IMPLEMENT_LOG_FUNCTION(Error)
 IMPLEMENT_LOG_FUNCTION(Warning)
 IMPLEMENT_LOG_FUNCTION(Message)
 IMPLEMENT_LOG_FUNCTION(Info)
 IMPLEMENT_LOG_FUNCTION(Status)
 
 IMPLEMENT_LOG_FUNCTION(Error)
 IMPLEMENT_LOG_FUNCTION(Warning)
 IMPLEMENT_LOG_FUNCTION(Message)
 IMPLEMENT_LOG_FUNCTION(Info)
 IMPLEMENT_LOG_FUNCTION(Status)
 

+void wxSafeShowMessage(const wxString& title, const wxString& text)
+{
+#ifdef __WINDOWS__
+    ::MessageBox(NULL, text, title, MB_OK | MB_ICONSTOP);
+#else
+    wxFprintf(stderr, _T("%s: %s\n"), title.c_str(), text.c_str());
+#endif
+}
+
+// fatal errors can't be suppressed nor handled by the custom log target and
+// always terminate the program
+void wxVLogFatalError(const wxChar *szFormat, va_list argptr)
+{
+    wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
+
+    wxSafeShowMessage(_T("Fatal Error"), s_szBuf);
+
+#ifdef __WXWINCE__
+    ExitThread(3);
+#else
+    abort();
+#endif
+}
+
+void wxLogFatalError(const wxChar *szFormat, ...)
+{
+    va_list argptr;
+    va_start(argptr, szFormat);
+    wxVLogFatalError(szFormat, argptr);
+
+    // some compilers warn about unreachable code and it shouldn't matter
+    // for the others anyhow...
+    //va_end(argptr);
+}
+

 // same as info, but only if 'verbose' mode is on
 // same as info, but only if 'verbose' mode is on

+void wxVLogVerbose(const wxChar *szFormat, va_list argptr)
+{
+    if ( IsLoggingEnabled() ) {
+        wxLog *pLog = wxLog::GetActiveTarget();
+        if ( pLog != NULL && pLog->GetVerbose() ) {
+            wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+            wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
+
+            wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL));
+        }
+    }
+}
+

 void wxLogVerbose(const wxChar *szFormat, ...)
 {
 void wxLogVerbose(const wxChar *szFormat, ...)
 {

-  wxLog *pLog = wxLog::GetActiveTarget();
-  if ( pLog != NULL && pLog->GetVerbose() ) {

     va_list argptr;
     va_start(argptr, szFormat);
     va_list argptr;
     va_start(argptr, szFormat);

-    wxVsprintf(s_szBuf, szFormat, argptr);
+    wxVLogVerbose(szFormat, argptr);

     va_end(argptr);
     va_end(argptr);

-
-    wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL));
-  }

 }
 
 // debug functions
 #ifdef __WXDEBUG__
 }
 
 // debug functions
 #ifdef __WXDEBUG__

-#define IMPLEMENT_LOG_DEBUG_FUNCTION(level)                       \
-  void wxLog##level(const wxChar *szFormat, ...)                  \
-  {                                                               \
-    if ( wxLog::GetActiveTarget() != NULL ) {                     \
-      va_list argptr;                                             \
-      va_start(argptr, szFormat);                                 \
-      wxVsprintf(s_szBuf, szFormat, argptr);                      \
-      va_end(argptr);                                             \
-                                                                  \
-      wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL));           \
-    }                                                             \
+#define IMPLEMENT_LOG_DEBUG_FUNCTION(level)                         \
+  void wxVLog##level(const wxChar *szFormat, va_list argptr)        \
+  {                                                                 \
+    if ( IsLoggingEnabled() ) {                                     \
+      wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);                      \
+                                                                    \
+      wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);    \
+                                                                    \
+      wxLog::OnLog(wxLOG_##level, s_szBuf, time(NULL));             \
+    }                                                               \
+  }                                                                 \
+  void wxLog##level(const wxChar *szFormat, ...)                    \
+  {                                                                 \
+    va_list argptr;                                                 \
+    va_start(argptr, szFormat);                                     \
+    wxVLog##level(szFormat, argptr);                                \
+    va_end(argptr);                                                 \

   }
 
   }
 

-  void wxLogTrace(const wxChar *mask, const wxChar *szFormat, ...)
+  void wxVLogTrace(const wxChar *mask, const wxChar *szFormat, va_list argptr)

   {
   {

-    wxLog *pLog = wxLog::GetActiveTarget();
+    if ( IsLoggingEnabled() && wxLog::IsAllowedTraceMask(mask) ) {
+      wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+      wxChar *p = s_szBuf;
+      size_t len = s_szBufSize;
+      wxStrncpy(s_szBuf, _T("("), len);
+      len -= 1; // strlen("(")
+      p += 1;
+      wxStrncat(p, mask, len);
+      size_t lenMask = wxStrlen(mask);
+      len -= lenMask;
+      p += lenMask;

 
 

-    if ( pLog != NULL && wxLog::IsAllowedTraceMask(mask) ) {
-      va_list argptr;
-      va_start(argptr, szFormat);
-      wxVsprintf(s_szBuf, szFormat, argptr);
-      va_end(argptr);
+      wxStrncat(p, _T(") "), len);
+      len -= 2;
+      p += 2;
+
+      wxVsnprintf(p, len, szFormat, argptr);

 
       wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
     }
   }
 
 
       wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
     }
   }
 

-  void wxLogTrace(wxTraceMask mask, const wxChar *szFormat, ...)
+  void wxLogTrace(const wxChar *mask, const wxChar *szFormat, ...)

   {
   {

-    wxLog *pLog = wxLog::GetActiveTarget();
+    va_list argptr;
+    va_start(argptr, szFormat);
+    wxVLogTrace(mask, szFormat, argptr);
+    va_end(argptr);
+  }

 
 

+  void wxVLogTrace(wxTraceMask mask, const wxChar *szFormat, va_list argptr)
+  {

     // we check that all of mask bits are set in the current mask, so
     // that wxLogTrace(wxTraceRefCount | wxTraceOle) will only do something
     // if both bits are set.
     // we check that all of mask bits are set in the current mask, so
     // that wxLogTrace(wxTraceRefCount | wxTraceOle) will only do something
     // if both bits are set.

-    if ( pLog != NULL && ((pLog->GetTraceMask() & mask) == mask) ) {
-      va_list argptr;
-      va_start(argptr, szFormat);
-      wxVsprintf(s_szBuf, szFormat, argptr);
-      va_end(argptr);
+    if ( IsLoggingEnabled() && ((wxLog::GetTraceMask() & mask) == mask) ) {
+      wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+      wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);

 
       wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
     }
   }
 
 
       wxLog::OnLog(wxLOG_Trace, s_szBuf, time(NULL));
     }
   }
 

+  void wxLogTrace(wxTraceMask mask, const wxChar *szFormat, ...)
+  {
+    va_list argptr;
+    va_start(argptr, szFormat);
+    wxVLogTrace(mask, szFormat, argptr);
+    va_end(argptr);
+  }
+

 #else // release
   #define IMPLEMENT_LOG_DEBUG_FUNCTION(level)
 #endif
 #else // release
   #define IMPLEMENT_LOG_DEBUG_FUNCTION(level)
 #endif


@@ -198,30 +318,49 @@ IMPLEMENT_LOG_DEBUG_FUNCTION(Trace)
 void wxLogSysErrorHelper(long lErrCode)
 {
     wxChar szErrMsg[LOG_BUFFER_SIZE / 2];
 void wxLogSysErrorHelper(long lErrCode)
 {
     wxChar szErrMsg[LOG_BUFFER_SIZE / 2];

-    wxSprintf(szErrMsg, _(" (error %ld: %s)"), lErrCode, wxSysErrorMsg(lErrCode));
-    wxStrncat(s_szBuf, szErrMsg, WXSIZEOF(s_szBuf) - wxStrlen(s_szBuf));
+    wxSnprintf(szErrMsg, WXSIZEOF(szErrMsg),
+               _(" (error %ld: %s)"), lErrCode, wxSysErrorMsg(lErrCode));
+    wxStrncat(s_szBuf, szErrMsg, s_szBufSize - wxStrlen(s_szBuf));

 
     wxLog::OnLog(wxLOG_Error, s_szBuf, time(NULL));
 }
 
 
     wxLog::OnLog(wxLOG_Error, s_szBuf, time(NULL));
 }
 

+void WXDLLEXPORT wxVLogSysError(const wxChar *szFormat, va_list argptr)
+{
+    if ( IsLoggingEnabled() ) {
+        wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+        wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
+
+        wxLogSysErrorHelper(wxSysErrorCode());
+    }
+}
+

 void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...)
 {
     va_list argptr;
     va_start(argptr, szFormat);
 void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...)
 {
     va_list argptr;
     va_start(argptr, szFormat);

-    wxVsprintf(s_szBuf, szFormat, argptr);
+    wxVLogSysError(szFormat, argptr);

     va_end(argptr);
     va_end(argptr);

+}
+
+void WXDLLEXPORT wxVLogSysError(long lErrCode, const wxChar *szFormat, va_list argptr)
+{
+    if ( IsLoggingEnabled() ) {
+        wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);

 
 

-    wxLogSysErrorHelper(wxSysErrorCode());
+        wxVsnprintf(s_szBuf, s_szBufSize, szFormat, argptr);
+
+        wxLogSysErrorHelper(lErrCode);
+    }

 }
 
 void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
 {
     va_list argptr;
     va_start(argptr, szFormat);
 }
 
 void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
 {
     va_list argptr;
     va_start(argptr, szFormat);

-    wxVsprintf(s_szBuf, szFormat, argptr);
+    wxVLogSysError(lErrCode, szFormat, argptr);

     va_end(argptr);
     va_end(argptr);

-
-    wxLogSysErrorHelper(lErrCode);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -230,14 +369,24 @@ void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
 
 wxLog::wxLog()
 {
 
 wxLog::wxLog()
 {

-    m_bHasMessages = FALSE;
+}

 
 

-    // enable verbose messages by default in the debug builds
-#ifdef __WXDEBUG__
-    m_bVerbose = TRUE;
-#else // release
-    m_bVerbose = FALSE;
-#endif // debug/release
+wxChar *wxLog::SetLogBuffer( wxChar *buf, size_t size)
+{
+    wxChar *oldbuf = s_szBuf;
+
+    if( buf == 0 )
+    {
+        s_szBuf = s_szBufStatic;
+        s_szBufSize = WXSIZEOF( s_szBufStatic );
+    }
+    else
+    {
+        s_szBuf = buf;
+        s_szBufSize = size;
+    }
+
+    return (oldbuf == s_szBufStatic ) ? 0 : oldbuf;

 }
 
 wxLog *wxLog::GetActiveTarget()
 }
 
 wxLog *wxLog::GetActiveTarget()


@@ -245,21 +394,17 @@ wxLog *wxLog::GetActiveTarget()
     if ( ms_bAutoCreate && ms_pLogger == NULL ) {
         // prevent infinite recursion if someone calls wxLogXXX() from
         // wxApp::CreateLogTarget()
     if ( ms_bAutoCreate && ms_pLogger == NULL ) {
         // prevent infinite recursion if someone calls wxLogXXX() from
         // wxApp::CreateLogTarget()

-        static bool s_bInGetActiveTarget = FALSE;
+        static bool s_bInGetActiveTarget = false;

         if ( !s_bInGetActiveTarget ) {
         if ( !s_bInGetActiveTarget ) {

-            s_bInGetActiveTarget = TRUE;
+            s_bInGetActiveTarget = true;

 
 

-#ifdef wxUSE_NOGUI
-            ms_pLogger = new wxLogStderr;
-#else // GUI

             // ask the application to create a log target for us
             if ( wxTheApp != NULL )
             // ask the application to create a log target for us
             if ( wxTheApp != NULL )

-                ms_pLogger = wxTheApp->CreateLogTarget();
+                ms_pLogger = wxTheApp->GetTraits()->CreateLogTarget();

             else
                 ms_pLogger = new wxLogStderr;
             else
                 ms_pLogger = new wxLogStderr;

-#endif // !GUI/GUI

 
 

-            s_bInGetActiveTarget = FALSE;
+            s_bInGetActiveTarget = false;

 
             // do nothing if it fails - what can we do?
         }
 
             // do nothing if it fails - what can we do?
         }


@@ -282,11 +427,26 @@ wxLog *wxLog::SetActiveTarget(wxLog *pLogger)
     return pOldLogger;
 }
 
     return pOldLogger;
 }
 

+void wxLog::DontCreateOnDemand()
+{
+    ms_bAutoCreate = false;
+
+    // this is usually called at the end of the program and we assume that it
+    // is *always* called at the end - so we free memory here to avoid false
+    // memory leak reports from wxWin  memory tracking code
+    ClearTraceMasks();
+}
+

 void wxLog::RemoveTraceMask(const wxString& str)
 {
     int index = ms_aTraceMasks.Index(str);
     if ( index != wxNOT_FOUND )
 void wxLog::RemoveTraceMask(const wxString& str)
 {
     int index = ms_aTraceMasks.Index(str);
     if ( index != wxNOT_FOUND )

-        ms_aTraceMasks.Remove((size_t)index);
+        ms_aTraceMasks.RemoveAt((size_t)index);
+}
+
+void wxLog::ClearTraceMasks()
+{
+    ms_aTraceMasks.Clear();

 }
 
 void wxLog::TimeStamp(wxString *str)
 }
 
 void wxLog::TimeStamp(wxString *str)


@@ -299,7 +459,7 @@ void wxLog::TimeStamp(wxString *str)
         wxStrftime(buf, WXSIZEOF(buf), ms_timestamp, localtime(&timeNow));
 
         str->Empty();
         wxStrftime(buf, WXSIZEOF(buf), ms_timestamp, localtime(&timeNow));
 
         str->Empty();

-        *str << buf << _T(": ");
+        *str << buf << wxT(": ");

     }
 }
 
     }
 }
 


@@ -310,7 +470,11 @@ void wxLog::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
             DoLogString(wxString(_("Fatal error: ")) + szString, t);
             DoLogString(_("Program aborted."), t);
             Flush();
             DoLogString(wxString(_("Fatal error: ")) + szString, t);
             DoLogString(_("Program aborted."), t);
             Flush();

+#ifdef __WXWINCE__
+            ExitThread(3);
+#else

             abort();
             abort();

+#endif

             break;
 
         case wxLOG_Error:
             break;
 
         case wxLOG_Error:


@@ -324,31 +488,43 @@ void wxLog::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
         case wxLOG_Info:
             if ( GetVerbose() )
         case wxLOG_Message:
         case wxLOG_Info:
             if ( GetVerbose() )
         case wxLOG_Message:

+        case wxLOG_Status:

         default:    // log unknown log levels too
                 DoLogString(szString, t);
         default:    // log unknown log levels too
                 DoLogString(szString, t);

-            // fall through
-
-        case wxLOG_Status:
-            // nothing to do

             break;
 
         case wxLOG_Trace:
         case wxLOG_Debug:
 #ifdef __WXDEBUG__
             break;
 
         case wxLOG_Trace:
         case wxLOG_Debug:
 #ifdef __WXDEBUG__

-            DoLogString(szString, t);
-#endif
+            {
+                wxString msg = level == wxLOG_Trace ? wxT("Trace: ")
+                                                    : wxT("Debug: ");
+                msg << szString;
+                DoLogString(msg, t);
+            }
+#endif // Debug

             break;
     }
 }
 
 void wxLog::DoLogString(const wxChar *WXUNUSED(szString), time_t WXUNUSED(t))
 {
             break;
     }
 }
 
 void wxLog::DoLogString(const wxChar *WXUNUSED(szString), time_t WXUNUSED(t))
 {

-    wxFAIL_MSG(_T("DoLogString must be overriden if it's called."));
+    wxFAIL_MSG(wxT("DoLogString must be overriden if it's called."));

 }
 
 void wxLog::Flush()
 {
 }
 
 void wxLog::Flush()
 {

-    // do nothing
+    // nothing to do here
+}
+
+/*static*/ bool wxLog::IsAllowedTraceMask(const wxChar *mask)
+{
+    for ( wxArrayString::iterator it = ms_aTraceMasks.begin(),
+                                  en = ms_aTraceMasks.end();
+         it != en; ++it )
+        if ( *it == mask)
+            return true;
+    return false;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -367,16 +543,24 @@ void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 {
     wxString str;
     TimeStamp(&str);
 {
     wxString str;
     TimeStamp(&str);

-    str << szString << _T('\n');
+    str << szString;

 
     fputs(str.mb_str(), m_fp);
 
     fputs(str.mb_str(), m_fp);

+    fputc(_T('\n'), m_fp);

     fflush(m_fp);
 
     fflush(m_fp);
 

-    // under Windows, programs usually don't have stderr at all, so make show the
-    // messages also under debugger
-#ifdef __WXMSW__
-    OutputDebugString(str + _T('\r'));
-#endif // MSW
+    // under GUI systems such as Windows or Mac, programs usually don't have
+    // stderr at all, so show the messages also somewhere else, typically in
+    // the debugger window so that they go at least somewhere instead of being
+    // simply lost
+    if ( m_fp == stderr )
+    {
+        wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+        if ( traits && !traits->HasStderr() )
+        {
+            wxMessageOutputDebug().Printf(_T("%s"), str.c_str());
+        }
+    }

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -384,20 +568,95 @@ void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 // ----------------------------------------------------------------------------
 
 #if wxUSE_STD_IOSTREAM
 // ----------------------------------------------------------------------------
 
 #if wxUSE_STD_IOSTREAM

-wxLogStream::wxLogStream(ostream *ostr)
+#include "wx/ioswrap.h"
+wxLogStream::wxLogStream(wxSTD ostream *ostr)

 {
     if ( ostr == NULL )
 {
     if ( ostr == NULL )

-        m_ostr = &cerr;
+        m_ostr = &wxSTD cerr;

     else
         m_ostr = ostr;
 }
 
 void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 {
     else
         m_ostr = ostr;
 }
 
 void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 {

-    (*m_ostr) << wxConvCurrent->cWX2MB(szString) << endl << flush;
+    wxString str;
+    TimeStamp(&str);
+    (*m_ostr) << str << wxConvertWX2MB(szString) << wxSTD endl;

 }
 #endif // wxUSE_STD_IOSTREAM
 
 }
 #endif // wxUSE_STD_IOSTREAM
 

+// ----------------------------------------------------------------------------
+// wxLogChain
+// ----------------------------------------------------------------------------
+
+wxLogChain::wxLogChain(wxLog *logger)
+{
+    m_bPassMessages = true;
+
+    m_logNew = logger;
+    m_logOld = wxLog::SetActiveTarget(this);
+}
+
+wxLogChain::~wxLogChain()
+{
+    delete m_logOld;
+
+    if ( m_logNew != this )
+        delete m_logNew;
+}
+
+void wxLogChain::SetLog(wxLog *logger)
+{
+    if ( m_logNew != this )
+        delete m_logNew;
+
+    m_logNew = logger;
+}
+
+void wxLogChain::Flush()
+{
+    if ( m_logOld )
+        m_logOld->Flush();
+
+    // be careful to avoid infinite recursion
+    if ( m_logNew && m_logNew != this )
+        m_logNew->Flush();
+}
+
+void wxLogChain::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
+{
+    // let the previous logger show it
+    if ( m_logOld && IsPassingMessages() )
+    {
+        // bogus cast just to access protected DoLog
+        ((wxLogChain *)m_logOld)->DoLog(level, szString, t);
+    }
+
+    if ( m_logNew && m_logNew != this )
+    {
+        // as above...
+        ((wxLogChain *)m_logNew)->DoLog(level, szString, t);
+    }
+}
+
+// ----------------------------------------------------------------------------
+// wxLogPassThrough
+// ----------------------------------------------------------------------------
+
+#ifdef __VISUALC__
+    // "'this' : used in base member initializer list" - so what?
+    #pragma warning(disable:4355)
+#endif // VC++
+
+wxLogPassThrough::wxLogPassThrough()
+                : wxLogChain(this)
+{
+}
+
+#ifdef __VISUALC__
+    #pragma warning(default:4355)
+#endif // VC++
+

 // ============================================================================
 // Global functions/variables
 // ============================================================================
 // ============================================================================
 // Global functions/variables
 // ============================================================================


@@ -407,10 +666,15 @@ void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 // ----------------------------------------------------------------------------
 
 wxLog          *wxLog::ms_pLogger      = (wxLog *)NULL;
 // ----------------------------------------------------------------------------
 
 wxLog          *wxLog::ms_pLogger      = (wxLog *)NULL;

-bool            wxLog::ms_doLog        = TRUE;
-bool            wxLog::ms_bAutoCreate  = TRUE;
+bool            wxLog::ms_doLog        = true;
+bool            wxLog::ms_bAutoCreate  = true;
+bool            wxLog::ms_bVerbose     = false;

 
 

-const wxChar   *wxLog::ms_timestamp    = _T("%X");  // time only, no date
+wxLogLevel      wxLog::ms_logLevel     = wxLOG_Max;  // log everything by default
+
+size_t          wxLog::ms_suspendCount = 0;
+
+const wxChar   *wxLog::ms_timestamp    = wxT("%X");  // time only, no date

 
 wxTraceMask     wxLog::ms_ulTraceMask  = (wxTraceMask)0;
 wxArrayString   wxLog::ms_aTraceMasks;
 
 wxTraceMask     wxLog::ms_ulTraceMask  = (wxTraceMask)0;
 wxArrayString   wxLog::ms_aTraceMasks;


@@ -459,13 +723,8 @@ static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz)
 // get error code from syste
 unsigned long wxSysErrorCode()
 {
 // get error code from syste
 unsigned long wxSysErrorCode()
 {

-#ifdef  __WXMSW__
-#ifdef  __WIN32__
+#if defined(__WXMSW__) && !defined(__WXMICROWIN__)

     return ::GetLastError();
     return ::GetLastError();

-#else   //WIN16
-    // TODO what to do on Windows 3.1?
-    return 0;
-#endif  //WIN16/32

 #else   //Unix
     return errno;
 #endif  //Win/Unix
 #else   //Unix
     return errno;
 #endif  //Win/Unix


@@ -477,8 +736,7 @@ const wxChar *wxSysErrorMsg(unsigned long nErrCode)
     if ( nErrCode == 0 )
         nErrCode = wxSysErrorCode();
 
     if ( nErrCode == 0 )
         nErrCode = wxSysErrorCode();
 

-#ifdef  __WXMSW__
-#ifdef  __WIN32__
+#if defined(__WXMSW__) && !defined(__WXMICROWIN__)

     static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
 
     // get error message from system
     static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
 
     // get error message from system


@@ -490,126 +748,40 @@ const wxChar *wxSysErrorMsg(unsigned long nErrCode)
             0, NULL);
 
     // copy it to our buffer and free memory
             0, NULL);
 
     // copy it to our buffer and free memory

-    wxStrncpy(s_szBuf, (const wxChar *)lpMsgBuf, WXSIZEOF(s_szBuf) - 1);
-    s_szBuf[WXSIZEOF(s_szBuf) - 1] = _T('\0');
-    LocalFree(lpMsgBuf);
-
-    // returned string is capitalized and ended with '\r\n' - bad
-    s_szBuf[0] = (wxChar)wxTolower(s_szBuf[0]);
-    size_t len = wxStrlen(s_szBuf);
-    if ( len > 0 ) {
-        // truncate string
-        if ( s_szBuf[len - 2] == _T('\r') )
-            s_szBuf[len - 2] = _T('\0');
+    // Crashes on SmartPhone
+#if !defined(__SMARTPHONE__) /* of WinCE */
+     if( lpMsgBuf != 0 ) {
+        wxStrncpy(s_szBuf, (const wxChar *)lpMsgBuf, WXSIZEOF(s_szBuf) - 1);
+        s_szBuf[WXSIZEOF(s_szBuf) - 1] = wxT('\0');
+
+        LocalFree(lpMsgBuf);
+
+        // returned string is capitalized and ended with '\r\n' - bad
+        s_szBuf[0] = (wxChar)wxTolower(s_szBuf[0]);
+        size_t len = wxStrlen(s_szBuf);
+        if ( len > 0 ) {
+            // truncate string
+            if ( s_szBuf[len - 2] == wxT('\r') )
+                s_szBuf[len - 2] = wxT('\0');
+        }
+    }
+    else
+#endif
+    {
+        s_szBuf[0] = wxT('\0');

     }
 
     return s_szBuf;
     }
 
     return s_szBuf;

-#else   //Win16
-    // TODO
-    return NULL;
-#endif // Win16/32
-#else   // Unix
+#else   // Unix-WXMICROWIN

 #if wxUSE_UNICODE
     static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
     wxConvCurrent->MB2WC(s_szBuf, strerror(nErrCode), WXSIZEOF(s_szBuf) -1);
     return s_szBuf;
 #else
 #if wxUSE_UNICODE
     static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
     wxConvCurrent->MB2WC(s_szBuf, strerror(nErrCode), WXSIZEOF(s_szBuf) -1);
     return s_szBuf;
 #else

-    return strerror(nErrCode);
-#endif
-#endif  // Win/Unix
-}
-
-// ----------------------------------------------------------------------------
-// debug helper
-// ----------------------------------------------------------------------------
-
-#ifdef  __WXDEBUG__
-
-// break into the debugger
-void Trap()
-{
-#ifdef __WXMSW__
-    DebugBreak();
-#elif defined(__WXMAC__)
-#if __powerc
-    Debugger();
-#else
-    SysBreak();
+    return strerror((int)nErrCode);

 #endif
 #endif

-#elif defined(__UNIX__)
-    raise(SIGTRAP);
-#else
-    // TODO
-#endif // Win/Unix
-}
-
-// this function is called when an assert fails
-void wxOnAssert(const wxChar *szFile, int nLine, const wxChar *szMsg)
-{
-    // this variable can be set to true to suppress "assert failure" messages
-    static bool s_bNoAsserts = FALSE;
-    static bool s_bInAssert = FALSE;        // FIXME MT-unsafe
-
-    if ( s_bInAssert ) {
-        // He-e-e-e-elp!! we're trapped in endless loop
-        Trap();
-
-        s_bInAssert = FALSE;
-
-        return;
-    }
-
-    s_bInAssert = TRUE;
-
-    wxChar szBuf[LOG_BUFFER_SIZE];
-
-    // make life easier for people using VC++ IDE: clicking on the message
-    // will take us immediately to the place of the failed assert
-#ifdef __VISUALC__
-    wxSprintf(szBuf, _T("%s(%d): assert failed"), szFile, nLine);
-#else  // !VC++
-    // make the error message more clear for all the others
-    wxSprintf(szBuf, _T("Assert failed in file %s at line %d"), szFile, nLine);
-#endif // VC/!VC
-
-    if ( szMsg != NULL ) {
-        wxStrcat(szBuf, _T(": "));
-        wxStrcat(szBuf, szMsg);
-    }
-    else {
-        wxStrcat(szBuf, _T("."));
-    }
-
-    if ( !s_bNoAsserts ) {
-        // send it to the normal log destination
-        wxLogDebug(szBuf);
-
-#if wxUSE_NOGUI
-        Trap();
-#else // GUI
-        // this message is intentionally not translated - it is for
-        // developpers only
-        wxStrcat(szBuf, _T("\nDo you want to stop the program?"
-                "\nYou can also choose [Cancel] to suppress "
-                "further warnings."));
-
-        switch ( wxMessageBox(szBuf, _("Debug"),
-                    wxYES_NO | wxCANCEL | wxICON_STOP ) ) {
-            case wxYES:
-                Trap();
-                break;
-
-            case wxCANCEL:
-                s_bNoAsserts = TRUE;
-                break;
-
-                //case wxNO: nothing to do
-        }
-#endif // !GUI/GUI
-    }
-
-    s_bInAssert = FALSE;
+#endif  // Win/Unix-WXMICROWIN

 }
 
 }
 

-#endif  //WXDEBUG
+#endif // wxUSE_LOG