]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/log.cpp
install wxUniv headers in make install and include wxUniv sources in make dist
[wxWidgets.git] / src / common / log.cpp
index 3f062d0dfcb5abd35d342d10f6754ba5a8c046c8..9d9b21c6608c8a32d7a0951d6bb907beb59f6fb5 100644 (file)
@@ -39,7 +39,6 @@
         #ifdef __WXMSW__
             #include "wx/msw/private.h"
         #endif
-        #include "wx/msgdlg.h"
     #endif
 #endif //WX_PRECOMP
 
 #include  "wx/log.h"
 #include  "wx/thread.h"
 
+#if wxUSE_LOG
+
 // other standard headers
 #include  <errno.h>
 #include  <stdlib.h>
 #include  <time.h>
 
-#ifdef  __WXMSW__
+#if defined(__WXMSW__)
   #include  "wx/msw/private.h"      // includes windows.h for OutputDebugString
-#else   //Unix
-  #include  <signal.h>
-#endif  //Win/Unix
+#endif
+
+#if defined(__WXMAC__)
+  #include  "wx/mac/private.h"  // includes mac headers
+#endif
 
 // ----------------------------------------------------------------------------
 // non member functions
@@ -94,6 +97,12 @@ 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
 //
@@ -102,33 +111,42 @@ static wxCriticalSection gs_csLogBuf;
 // ----------------------------------------------------------------------------
 
 // generic log function
-void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...)
+void wxVLogGeneric(wxLogLevel level, const wxChar *szFormat, va_list argptr)
 {
-  if ( wxLog::GetActiveTarget() != NULL ) {
-    wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+    if ( IsLoggingEnabled() ) {
+        wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+        wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
+
+        wxLog::OnLog(level, s_szBuf, time(NULL));
+    }
+}
 
+void wxLogGeneric(wxLogLevel level, const wxChar *szFormat, ...)
+{
     va_list argptr;
     va_start(argptr, szFormat);
-    wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
+    wxVLogGeneric(level, szFormat, 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 ) {                     \
-      wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);                    \
-                                                                  \
-      va_list argptr;                                             \
-      va_start(argptr, szFormat);                                 \
-      wxVsnprintf(s_szBuf, WXSIZEOF(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);                      \
+                                                                    \
+      wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), 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)
@@ -139,87 +157,104 @@ IMPLEMENT_LOG_FUNCTION(Info)
 IMPLEMENT_LOG_FUNCTION(Status)
 
 // same as info, but only if 'verbose' mode is on
-void wxLogVerbose(const wxChar *szFormat, ...)
+void wxVLogVerbose(const wxChar *szFormat, va_list argptr)
 {
-  wxLog *pLog = wxLog::GetActiveTarget();
-  if ( pLog != NULL && pLog->GetVerbose() ) {
-    wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+    if ( IsLoggingEnabled() ) {
+        wxLog *pLog = wxLog::GetActiveTarget();
+        if ( pLog != NULL && pLog->GetVerbose() ) {
+            wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+            wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
 
+            wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL));
+        }
+    }
+}
+
+void wxLogVerbose(const wxChar *szFormat, ...)
+{
     va_list argptr;
     va_start(argptr, szFormat);
-    wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
+    wxVLogVerbose(szFormat, argptr);
     va_end(argptr);
-
-    wxLog::OnLog(wxLOG_Info, s_szBuf, time(NULL));
-  }
 }
 
 // debug functions
 #ifdef __WXDEBUG__
-#define IMPLEMENT_LOG_DEBUG_FUNCTION(level)                       \
-  void wxLog##level(const wxChar *szFormat, ...)                  \
-  {                                                               \
-    if ( wxLog::GetActiveTarget() != NULL ) {                     \
-      wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);                    \
-                                                                  \
-      va_list argptr;                                             \
-      va_start(argptr, szFormat);                                 \
-      wxVsnprintf(s_szBuf, WXSIZEOF(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, WXSIZEOF(s_szBuf), 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 ( pLog != NULL && wxLog::IsAllowedTraceMask(mask) ) {
+    if ( IsLoggingEnabled() && wxLog::IsAllowedTraceMask(mask) ) {
       wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
 
       wxChar *p = s_szBuf;
       size_t len = WXSIZEOF(s_szBuf);
-      strncpy(s_szBuf, _T("Trace ("), len);
-      len -= 7; // strlen("Trace (")
-      p += 7;
-      strncat(p, mask, len);
+      wxStrncpy(s_szBuf, _T("("), len);
+      len -= 1; // strlen("(")
+      p += 1;
+      wxStrncat(p, mask, len);
       size_t lenMask = wxStrlen(mask);
       len -= lenMask;
       p += lenMask;
 
-      strncat(p, _T("): "), len);
-      len -= 3;
-      p += 3;
+      wxStrncat(p, _T(") "), len);
+      len -= 2;
+      p += 2;
 
-      va_list argptr;
-      va_start(argptr, szFormat);
       wxVsnprintf(p, len, szFormat, argptr);
-      va_end(argptr);
-
+      
       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.
-    if ( pLog != NULL && ((pLog->GetTraceMask() & mask) == mask) ) {
+    if ( IsLoggingEnabled() && ((wxLog::GetTraceMask() & mask) == mask) ) {
       wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
 
-      va_list argptr;
-      va_start(argptr, szFormat);
       wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
-      va_end(argptr);
 
       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
@@ -241,28 +276,42 @@ void wxLogSysErrorHelper(long lErrCode)
     wxLog::OnLog(wxLOG_Error, s_szBuf, time(NULL));
 }
 
-void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...)
+void WXDLLEXPORT wxVLogSysError(const wxChar *szFormat, va_list argptr)
 {
-    wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+    if ( IsLoggingEnabled() ) {
+        wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+        wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
 
+        wxLogSysErrorHelper(wxSysErrorCode());
+    }
+}
+
+void WXDLLEXPORT wxLogSysError(const wxChar *szFormat, ...)
+{
     va_list argptr;
     va_start(argptr, szFormat);
-    wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
+    wxVLogSysError(szFormat, argptr);
     va_end(argptr);
+}
 
-    wxLogSysErrorHelper(wxSysErrorCode());
+void WXDLLEXPORT wxVLogSysError(long lErrCode, const wxChar *szFormat, va_list argptr)
+{
+    if ( IsLoggingEnabled() ) {
+        wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
+
+        wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
+
+        wxLogSysErrorHelper(lErrCode);
+    }
 }
 
 void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
 {
-    wxCRIT_SECT_LOCKER(locker, gs_csLogBuf);
-
     va_list argptr;
     va_start(argptr, szFormat);
-    wxVsnprintf(s_szBuf, WXSIZEOF(s_szBuf), szFormat, argptr);
+    wxVLogSysError(lErrCode, szFormat, argptr);
     va_end(argptr);
-
-    wxLogSysErrorHelper(lErrCode);
 }
 
 // ----------------------------------------------------------------------------
@@ -272,13 +321,6 @@ void WXDLLEXPORT wxLogSysError(long lErrCode, const wxChar *szFormat, ...)
 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
 }
 
 wxLog *wxLog::GetActiveTarget()
@@ -319,6 +361,16 @@ wxLog *wxLog::SetActiveTarget(wxLog *pLogger)
     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);
@@ -326,6 +378,11 @@ void wxLog::RemoveTraceMask(const wxString& str)
         ms_aTraceMasks.Remove((size_t)index);
 }
 
+void wxLog::ClearTraceMasks()
+{
+    ms_aTraceMasks.Clear();
+}
+
 void wxLog::TimeStamp(wxString *str)
 {
     if ( ms_timestamp )
@@ -369,8 +426,13 @@ void wxLog::DoLog(wxLogLevel level, const wxChar *szString, time_t t)
         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;
     }
 }
@@ -382,7 +444,8 @@ void wxLog::DoLogString(const wxChar *WXUNUSED(szString), time_t WXUNUSED(t))
 
 void wxLog::Flush()
 {
-    // do nothing
+    // remember that we don't have any more messages to show
+    m_bHasMessages = FALSE;
 }
 
 // ----------------------------------------------------------------------------
@@ -397,6 +460,196 @@ wxLogStderr::wxLogStderr(FILE *fp)
         m_fp = fp;
 }
 
+#if defined(__WXMAC__) && !defined(__DARWIN__) && (__MWERKS__ > 0x5300)
+
+#if !TARGET_API_MAC_CARBON
+// MetroNub stuff doesn't seem to work in CodeWarrior 5.3 Carbon builds...
+
+#ifndef __MetroNubUtils__
+#include "MetroNubUtils.h"
+#endif
+
+#ifdef __cplusplus
+       extern "C" {
+#endif
+
+#ifndef __GESTALT__
+#include <Gestalt.h>
+#endif
+
+#ifndef true
+#define true 1
+#endif
+
+#ifndef false
+#define false 0
+#endif
+
+#if TARGET_API_MAC_CARBON
+
+       #include <CodeFragments.h>
+
+       EXTERN_API_C( long )
+       CallUniversalProc(UniversalProcPtr theProcPtr, ProcInfoType procInfo, ...);
+
+       ProcPtr gCallUniversalProc_Proc = NULL;
+       
+#endif
+
+static MetroNubUserEntryBlock* gMetroNubEntry = NULL;
+
+static long fRunOnce = false;
+
+Boolean IsCompatibleVersion(short inVersion);
+
+/* ---------------------------------------------------------------------------
+               IsCompatibleVersion
+   --------------------------------------------------------------------------- */
+
+Boolean IsCompatibleVersion(short inVersion)
+{
+       Boolean result = false;
+       
+       if (fRunOnce)
+       {
+               MetroNubUserEntryBlock* block = (MetroNubUserEntryBlock *)result;
+               
+               result = (inVersion <= block->apiHiVersion);
+       }
+       
+       return result;  
+}
+
+/* ---------------------------------------------------------------------------
+               IsMetroNubInstalled
+   --------------------------------------------------------------------------- */
+
+Boolean IsMetroNubInstalled()
+{
+       if (!fRunOnce)
+       {
+               long result, value;
+               
+               fRunOnce = true;
+               gMetroNubEntry = NULL;
+               
+               if (Gestalt(gestaltSystemVersion, &value) == noErr && value < 0x1000)
+               {
+                       /* look for MetroNub's Gestalt selector */
+                       if (Gestalt(kMetroNubUserSignature, &result) == noErr)
+                       {
+                       
+                       #if TARGET_API_MAC_CARBON
+                               if (gCallUniversalProc_Proc == NULL)
+                               {
+                                       CFragConnectionID       connectionID;
+                                       Ptr                                     mainAddress;
+                                       Str255                          errorString;
+                                       ProcPtr                         symbolAddress;
+                                       OSErr                           err;
+                                       CFragSymbolClass        symbolClass;
+                                       
+                                       symbolAddress = NULL;
+                                       err = GetSharedLibrary("\pInterfaceLib", kPowerPCCFragArch, kFindCFrag,
+                                                                                       &connectionID, &mainAddress, errorString);
+                                       
+                                       if (err != noErr)
+                                       {
+                                               gCallUniversalProc_Proc = NULL;
+                                               goto end;
+                                       }
+
+                                       err = FindSymbol(connectionID, "\pCallUniversalProc",
+                                                                       (Ptr *) &gCallUniversalProc_Proc, &symbolClass);
+                                       
+                                       if (err != noErr)
+                                       {
+                                               gCallUniversalProc_Proc = NULL;
+                                               goto end;
+                                       }
+                               }
+                       #endif
+                       
+                               {
+                                       MetroNubUserEntryBlock* block = (MetroNubUserEntryBlock *)result;
+                                       
+                                       /* make sure the version of the API is compatible */
+                                       if (block->apiLowVersion <= kMetroNubUserAPIVersion &&
+                                               kMetroNubUserAPIVersion <= block->apiHiVersion)
+                                               gMetroNubEntry = block;         /* success! */
+                               }
+
+                       }
+               }
+       }
+
+end:
+
+#if TARGET_API_MAC_CARBON
+       return (gMetroNubEntry != NULL && gCallUniversalProc_Proc != NULL);
+#else
+       return (gMetroNubEntry != NULL);
+#endif
+}
+
+/* ---------------------------------------------------------------------------
+               IsMWDebuggerRunning                                                                                     [v1 API]
+   --------------------------------------------------------------------------- */
+
+Boolean IsMWDebuggerRunning()
+{
+       if (IsMetroNubInstalled())
+               return CallIsDebuggerRunningProc(gMetroNubEntry->isDebuggerRunning);
+       else
+               return false;
+}
+
+/* ---------------------------------------------------------------------------
+               AmIBeingMWDebugged                                                                                      [v1 API]
+   --------------------------------------------------------------------------- */
+
+Boolean AmIBeingMWDebugged()
+{
+       if (IsMetroNubInstalled())
+               return CallAmIBeingDebuggedProc(gMetroNubEntry->amIBeingDebugged);
+       else
+               return false;
+}
+
+/* ---------------------------------------------------------------------------
+               UserSetWatchPoint                                                                                       [v2 API]
+   --------------------------------------------------------------------------- */
+
+OSErr UserSetWatchPoint (Ptr address, long length, WatchPointIDT* watchPointID)
+{
+       if (IsMetroNubInstalled() && IsCompatibleVersion(kMetroNubUserAPIVersion))
+               return CallUserSetWatchPointProc(gMetroNubEntry->userSetWatchPoint,
+                                                                                       address, length, watchPointID);
+       else
+               return errProcessIsNotClient;
+}
+
+/* ---------------------------------------------------------------------------
+               ClearWatchPoint                                                                                         [v2 API]
+   --------------------------------------------------------------------------- */
+
+OSErr ClearWatchPoint (WatchPointIDT watchPointID)
+{
+       if (IsMetroNubInstalled() && IsCompatibleVersion(kMetroNubUserAPIVersion))
+               return CallClearWatchPointProc(gMetroNubEntry->clearWatchPoint,
+                                                                                       watchPointID);
+       else
+               return errProcessIsNotClient;
+}
+
+#ifdef __cplusplus
+       }
+#endif
+
+#endif // !TARGET_API_MAC_CARBON
+
+#endif // defined(__WXMAC__) && !defined(__DARWIN__) && (__MWERKS__ > 0x5300)
+
 void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 {
     wxString str;
@@ -409,12 +662,36 @@ void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 
     // under Windows, programs usually don't have stderr at all, so show the
     // messages also under debugger - unless it's a console program
-#if defined(__WXMSW__) && wxUSE_GUI
-    OutputDebugString(str + wxT("\r\n"));
-#endif // MSW
-#if defined(__WXMAC__) && wxUSE_GUI
-    debugstr(str + wxT("\r\n"));
+#if defined(__WXMSW__) && wxUSE_GUI && !defined(__WXMICROWIN__)
+    str += wxT("\r\n") ;
+    OutputDebugString(str.c_str());
 #endif // MSW
+#if defined(__WXMAC__) && !defined(__DARWIN__) && wxUSE_GUI
+    Str255 pstr ;
+    strcpy( (char*) pstr , str.c_str() ) ;
+    strcat( (char*) pstr , ";g" ) ;
+    c2pstr( (char*) pstr ) ;
+
+    Boolean running = false ;
+
+#if !TARGET_API_MAC_CARBON && (__MWERKS__ > 0x5300)
+
+    if ( IsMWDebuggerRunning() && AmIBeingMWDebugged() )
+    {
+        running = true ;
+    }
+
+#endif
+
+    if (running)
+    {
+#ifdef __powerc
+        DebugStr(pstr);
+#else
+        SysBreakStr(pstr);
+#endif
+    }
+#endif // Mac
 }
 
 // ----------------------------------------------------------------------------
@@ -422,20 +699,86 @@ void wxLogStderr::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 // ----------------------------------------------------------------------------
 
 #if wxUSE_STD_IOSTREAM
-wxLogStream::wxLogStream(ostream *ostr)
+wxLogStream::wxLogStream(wxSTD ostream *ostr)
 {
     if ( ostr == NULL )
-        m_ostr = &cerr;
+        m_ostr = &wxSTD cerr;
     else
         m_ostr = ostr;
 }
 
 void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 {
-    (*m_ostr) << wxConvertWX2MB(szString) << endl;
+    wxString str;
+    TimeStamp(&str);
+    (*m_ostr) << str << wxConvertWX2MB(szString) << wxSTD endl;
 }
 #endif // wxUSE_STD_IOSTREAM
 
+// ----------------------------------------------------------------------------
+// wxLogChain
+// ----------------------------------------------------------------------------
+
+wxLogChain::wxLogChain(wxLog *logger)
+{
+    m_logNew = logger;
+    m_logOld = wxLog::SetActiveTarget(this);
+}
+
+void wxLogChain::SetLog(wxLog *logger)
+{
+    if ( m_logNew != this )
+        delete m_logNew;
+
+    wxLog::SetActiveTarget(logger);
+
+    m_logNew = logger;
+}
+
+void wxLogChain::Flush()
+{
+    if ( m_logOld )
+        m_logOld->Flush();
+
+    // be careful to avoid inifinite 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
 // ============================================================================
@@ -447,6 +790,7 @@ void wxLogStream::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
 wxLog          *wxLog::ms_pLogger      = (wxLog *)NULL;
 bool            wxLog::ms_doLog        = TRUE;
 bool            wxLog::ms_bAutoCreate  = TRUE;
+bool            wxLog::ms_bVerbose     = FALSE;
 
 size_t          wxLog::ms_suspendCount = 0;
 
@@ -503,7 +847,7 @@ static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz)
 // get error code from syste
 unsigned long wxSysErrorCode()
 {
-#ifdef  __WXMSW__
+#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
 #ifdef  __WIN32__
     return ::GetLastError();
 #else   //WIN16
@@ -521,7 +865,7 @@ const wxChar *wxSysErrorMsg(unsigned long nErrCode)
     if ( nErrCode == 0 )
         nErrCode = wxSysErrorCode();
 
-#ifdef  __WXMSW__
+#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
 #ifdef  __WIN32__
     static wxChar s_szBuf[LOG_BUFFER_SIZE / 2];
 
@@ -534,17 +878,23 @@ const wxChar *wxSysErrorMsg(unsigned long nErrCode)
             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] = 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');
+    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 {
+        s_szBuf[0] = wxT('\0');
     }
 
     return s_szBuf;
@@ -563,115 +913,4 @@ const wxChar *wxSysErrorMsg(unsigned long nErrCode)
 #endif  // Win/Unix
 }
 
-// ----------------------------------------------------------------------------
-// debug helper
-// ----------------------------------------------------------------------------
-
-#ifdef  __WXDEBUG__
-
-// break into the debugger
-void Trap()
-{
-#ifdef __WXMSW__
-    DebugBreak();
-#elif defined(__WXMAC__)
-#if __powerc
-    Debugger();
-#else
-    SysBreak();
-#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
-    wxSnprintf(szBuf, WXSIZEOF(szBuf),
-#ifdef __VISUALC__
-               wxT("%s(%d): assert failed"),
-#else  // !VC++
-    // make the error message more clear for all the others
-               wxT("Assert failed in file %s at line %d"),
-#endif // VC/!VC
-               szFile, nLine);
-
-    if ( szMsg != NULL ) {
-        wxStrcat(szBuf, wxT(": "));
-        wxStrcat(szBuf, szMsg);
-    }
-    else {
-        wxStrcat(szBuf, wxT("."));
-    }
-
-    if ( !s_bNoAsserts ) {
-        // send it to the normal log destination
-        wxLogDebug(szBuf);
-
-#if wxUSE_GUI || defined(__WXMSW__)
-        // this message is intentionally not translated - it is for
-        // developpers only
-        wxStrcat(szBuf, wxT("\nDo you want to stop the program?"
-                            "\nYou can also choose [Cancel] to suppress "
-                            "further warnings."));
-
-#if wxUSE_GUI
-        switch ( wxMessageBox(szBuf, "Debug",
-                              wxYES_NO | wxCANCEL | wxICON_STOP ) ) {
-            case wxYES:
-                Trap();
-                break;
-
-            case wxCANCEL:
-                s_bNoAsserts = TRUE;
-                break;
-
-            //case wxNO: nothing to do
-        }
-#else // !GUI, but MSW
-        switch ( ::MessageBox(NULL, szBuf, "Debug",
-                              MB_YESNOCANCEL | MB_ICONSTOP ) ) {
-            case IDYES:
-                Trap();
-                break;
-
-            case IDCANCEL:
-                s_bNoAsserts = TRUE;
-                break;
-
-            //case IDNO: nothing to do
-        }
-#endif // GUI or MSW
-
-#else // !GUI
-        Trap();
-#endif // GUI/!GUI
-    }
-
-    s_bInAssert = FALSE;
-}
-
-#endif  //WXDEBUG
-
+#endif //wxUSE_LOG