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e0a050e347b1ece07ad5f165ba1b1d16edbeae77
wxWidgets/src/common/log.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/common/log.cpp
// Purpose: Assorted wxLogXXX functions, and wxLog (sink for logs)
// Author: Vadim Zeitlin
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_LOG
// wxWidgets
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/app.h"
#include "wx/arrstr.h"
#include "wx/intl.h"
#include "wx/string.h"
#include "wx/utils.h"
#endif //WX_PRECOMP
#include "wx/apptrait.h"
#include "wx/datetime.h"
#include "wx/file.h"
#include "wx/msgout.h"
#include "wx/textfile.h"
#include "wx/thread.h"
#include "wx/crt.h"
// other standard headers
#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
// ----------------------------------------------------------------------------
// define this to enable wrapping of log messages
//#define LOG_PRETTY_WRAP
#ifdef LOG_PRETTY_WRAP
static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz);
#endif
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// 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.
// ----------------------------------------------------------------------------
// generic log function
void wxVLogGeneric(wxLogLevel level, const wxString& format, va_list argptr)
{
if ( wxLog::IsEnabled() ) {
wxLog::OnLog(level, wxString::FormatV(format, argptr), time(NULL));
}
}
#if !wxUSE_UTF8_LOCALE_ONLY
void wxDoLogGenericWchar(wxLogLevel level, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogGeneric(level, format, argptr);
va_end(argptr);
}
#endif // wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void wxDoLogGenericUtf8(wxLogLevel level, const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogGeneric(level, format, argptr);
va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
#if !wxUSE_UTF8_LOCALE_ONLY
#define IMPLEMENT_LOG_FUNCTION_WCHAR(level) \
void wxDoLog##level##Wchar(const wxChar *format, ...) \
{ \
va_list argptr; \
va_start(argptr, format); \
wxVLog##level(format, argptr); \
va_end(argptr); \
}
#else
#define IMPLEMENT_LOG_FUNCTION_WCHAR(level)
#endif
#if wxUSE_UNICODE_UTF8
#define IMPLEMENT_LOG_FUNCTION_UTF8(level) \
void wxDoLog##level##Utf8(const char *format, ...) \
{ \
va_list argptr; \
va_start(argptr, format); \
wxVLog##level(format, argptr); \
va_end(argptr); \
}
#else
#define IMPLEMENT_LOG_FUNCTION_UTF8(level)
#endif
#define IMPLEMENT_LOG_FUNCTION(level) \
void wxVLog##level(const wxString& format, va_list argptr) \
{ \
if ( wxLog::IsEnabled() ) { \
wxLog::OnLog(wxLOG_##level, \
wxString::FormatV(format, argptr), time(NULL)); \
} \
} \
IMPLEMENT_LOG_FUNCTION_WCHAR(level) \
IMPLEMENT_LOG_FUNCTION_UTF8(level)
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.wx_str(), title.wx_str(), MB_OK | MB_ICONSTOP);
#else
wxFprintf(stderr, _T("%s: %s\n"), title.c_str(), text.c_str());
fflush(stderr);
#endif
}
// fatal errors can't be suppressed nor handled by the custom log target and
// always terminate the program
void wxVLogFatalError(const wxString& format, va_list argptr)
{
wxSafeShowMessage(_T("Fatal Error"), wxString::FormatV(format, argptr));
#ifdef __WXWINCE__
ExitThread(3);
#else
abort();
#endif
}
#if !wxUSE_UTF8_LOCALE_ONLY
void wxDoLogFatalErrorWchar(const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogFatalError(format, argptr);
// some compilers warn about unreachable code and it shouldn't matter
// for the others anyhow...
//va_end(argptr);
}
#endif // wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void wxDoLogFatalErrorUtf8(const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogFatalError(format, argptr);
// some compilers warn about unreachable code and it shouldn't matter
// for the others anyhow...
//va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
// same as info, but only if 'verbose' mode is on
void wxVLogVerbose(const wxString& format, va_list argptr)
{
if ( wxLog::IsEnabled() ) {
if ( wxLog::GetActiveTarget() != NULL && wxLog::GetVerbose() ) {
wxLog::OnLog(wxLOG_Info,
wxString::FormatV(format, argptr), time(NULL));
}
}
}
#if !wxUSE_UTF8_LOCALE_ONLY
void wxDoLogVerboseWchar(const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogVerbose(format, argptr);
va_end(argptr);
}
#endif // !wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void wxDoLogVerboseUtf8(const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogVerbose(format, argptr);
va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
// debug functions
#ifdef __WXDEBUG__
#if !wxUSE_UTF8_LOCALE_ONLY
#define IMPLEMENT_LOG_DEBUG_FUNCTION_WCHAR(level) \
void wxDoLog##level##Wchar(const wxChar *format, ...) \
{ \
va_list argptr; \
va_start(argptr, format); \
wxVLog##level(format, argptr); \
va_end(argptr); \
}
#else
#define IMPLEMENT_LOG_DEBUG_FUNCTION_WCHAR(level)
#endif
#if wxUSE_UNICODE_UTF8
#define IMPLEMENT_LOG_DEBUG_FUNCTION_UTF8(level) \
void wxDoLog##level##Utf8(const char *format, ...) \
{ \
va_list argptr; \
va_start(argptr, format); \
wxVLog##level(format, argptr); \
va_end(argptr); \
}
#else
#define IMPLEMENT_LOG_DEBUG_FUNCTION_UTF8(level)
#endif
#define IMPLEMENT_LOG_DEBUG_FUNCTION(level) \
void wxVLog##level(const wxString& format, va_list argptr) \
{ \
if ( wxLog::IsEnabled() ) { \
wxLog::OnLog(wxLOG_##level, \
wxString::FormatV(format, argptr), time(NULL)); \
} \
} \
IMPLEMENT_LOG_DEBUG_FUNCTION_WCHAR(level) \
IMPLEMENT_LOG_DEBUG_FUNCTION_UTF8(level)
void wxVLogTrace(const wxString& mask, const wxString& format, va_list argptr)
{
if ( wxLog::IsEnabled() && wxLog::IsAllowedTraceMask(mask) ) {
wxString msg;
msg << _T("(") << mask << _T(") ") << wxString::FormatV(format, argptr);
wxLog::OnLog(wxLOG_Trace, msg, time(NULL));
}
}
#if !wxUSE_UTF8_LOCALE_ONLY
void wxDoLogTraceWchar(const wxString& mask, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
#endif // !wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void wxDoLogTraceUtf8(const wxString& mask, const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
void wxVLogTrace(wxTraceMask mask, const wxString& format, 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 ( wxLog::IsEnabled() && ((wxLog::GetTraceMask() & mask) == mask) ) {
wxLog::OnLog(wxLOG_Trace, wxString::FormatV(format, argptr), time(NULL));
}
}
#if !wxUSE_UTF8_LOCALE_ONLY
void wxDoLogTraceWchar(wxTraceMask mask, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
#endif // !wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void wxDoLogTraceUtf8(wxTraceMask mask, const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
#ifdef __WATCOMC__
// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
void wxDoLogTraceWchar(int mask, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
void wxDoLogTraceWchar(const char *mask, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
void wxDoLogTraceWchar(const wchar_t *mask, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogTrace(mask, format, argptr);
va_end(argptr);
}
void wxVLogTrace(int mask, const wxString& format, va_list argptr)
{ wxVLogTrace((wxTraceMask)mask, format, argptr); }
void wxVLogTrace(const char *mask, const wxString& format, va_list argptr)
{ wxVLogTrace(wxString(mask), format, argptr); }
void wxVLogTrace(const wchar_t *mask, const wxString& format, va_list argptr)
{ wxVLogTrace(wxString(mask), format, argptr); }
#endif // __WATCOMC__
#else // release
#define IMPLEMENT_LOG_DEBUG_FUNCTION(level)
#endif
IMPLEMENT_LOG_DEBUG_FUNCTION(Debug)
IMPLEMENT_LOG_DEBUG_FUNCTION(Trace)
// wxLogSysError: one uses the last error code, for other you must give it
// explicitly
// return the system error message description
static inline wxString wxLogSysErrorHelper(long err)
{
return wxString::Format(_(" (error %ld: %s)"), err, wxSysErrorMsg(err));
}
void WXDLLEXPORT wxVLogSysError(const wxString& format, va_list argptr)
{
wxVLogSysError(wxSysErrorCode(), format, argptr);
}
#if !wxUSE_UTF8_LOCALE_ONLY
void WXDLLEXPORT wxDoLogSysErrorWchar(const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogSysError(format, argptr);
va_end(argptr);
}
#endif // !wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void WXDLLEXPORT wxDoLogSysErrorUtf8(const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogSysError(format, argptr);
va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
void WXDLLEXPORT wxVLogSysError(long err, const wxString& format, va_list argptr)
{
if ( wxLog::IsEnabled() ) {
wxLog::OnLog(wxLOG_Error,
wxString::FormatV(format, argptr) + wxLogSysErrorHelper(err),
time(NULL));
}
}
#if !wxUSE_UTF8_LOCALE_ONLY
void WXDLLEXPORT wxDoLogSysErrorWchar(long lErrCode, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogSysError(lErrCode, format, argptr);
va_end(argptr);
}
#endif // !wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE_UTF8
void WXDLLEXPORT wxDoLogSysErrorUtf8(long lErrCode, const char *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogSysError(lErrCode, format, argptr);
va_end(argptr);
}
#endif // wxUSE_UNICODE_UTF8
#ifdef __WATCOMC__
// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
void WXDLLEXPORT wxDoLogSysErrorWchar(unsigned long lErrCode, const wxChar *format, ...)
{
va_list argptr;
va_start(argptr, format);
wxVLogSysError(lErrCode, format, argptr);
va_end(argptr);
}
void WXDLLEXPORT wxVLogSysError(unsigned long err, const wxString& format, va_list argptr)
{ wxVLogSysError((long)err, format, argptr); }
#endif // __WATCOMC__
// ----------------------------------------------------------------------------
// wxLog class implementation
// ----------------------------------------------------------------------------
/* static */
unsigned wxLog::DoLogNumberOfRepeats()
{
long retval = ms_prevCounter;
wxLog *pLogger = GetActiveTarget();
if ( pLogger && ms_prevCounter > 0 )
{
wxString msg;
#if wxUSE_INTL
msg.Printf(wxPLURAL("The previous message repeated once.",
"The previous message repeated %lu times.",
ms_prevCounter),
ms_prevCounter);
#else
msg.Printf(wxT("The previous message was repeated."));
#endif
ms_prevCounter = 0;
ms_prevString.clear();
pLogger->DoLog(ms_prevLevel, msg, ms_prevTimeStamp);
}
return retval;
}
wxLog::~wxLog()
{
if ( ms_prevCounter > 0 )
{
// looks like the repeat count has not been logged yet,
// so let's do it now
wxLog::DoLogNumberOfRepeats();
}
}
/* static */
void wxLog::OnLog(wxLogLevel level, const wxString& szString, time_t t)
{
if ( IsEnabled() && ms_logLevel >= level )
{
wxLog *pLogger = GetActiveTarget();
if ( pLogger )
{
if ( GetRepetitionCounting() && ms_prevString == szString )
{
ms_prevCounter++;
}
else
{
if ( GetRepetitionCounting() )
{
DoLogNumberOfRepeats();
}
ms_prevString = szString;
ms_prevLevel = level;
ms_prevTimeStamp = t;
pLogger->DoLog(level, szString, t);
}
}
}
}
// deprecated function
#if WXWIN_COMPATIBILITY_2_6
wxChar *wxLog::SetLogBuffer(wxChar * WXUNUSED(buf), size_t WXUNUSED(size))
{
return NULL;
}
#endif // WXWIN_COMPATIBILITY_2_6
#if WXWIN_COMPATIBILITY_2_8
void wxLog::DoLog(wxLogLevel WXUNUSED(level),
const char *WXUNUSED(szString),
time_t WXUNUSED(t))
{
}
void wxLog::DoLog(wxLogLevel WXUNUSED(level),
const wchar_t *WXUNUSED(wzString),
time_t WXUNUSED(t))
{
}
#endif // WXWIN_COMPATIBILITY_2_8
wxLog *wxLog::GetActiveTarget()
{
if ( ms_bAutoCreate && ms_pLogger == NULL ) {
// prevent infinite recursion if someone calls wxLogXXX() from
// wxApp::CreateLogTarget()
static bool s_bInGetActiveTarget = false;
if ( !s_bInGetActiveTarget ) {
s_bInGetActiveTarget = true;
// ask the application to create a log target for us
if ( wxTheApp != NULL )
ms_pLogger = wxTheApp->GetTraits()->CreateLogTarget();
else
ms_pLogger = new wxLogStderr;
s_bInGetActiveTarget = false;
// do nothing if it fails - what can we do?
}
}
return ms_pLogger;
}
wxLog *wxLog::SetActiveTarget(wxLog *pLogger)
{
if ( ms_pLogger != NULL ) {
// flush the old messages before changing because otherwise they might
// get lost later if this target is not restored
ms_pLogger->Flush();
}
wxLog *pOldLogger = ms_pLogger;
ms_pLogger = 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::DoCreateOnDemand()
{
ms_bAutoCreate = true;
}
void wxLog::RemoveTraceMask(const wxString& str)
{
int index = ms_aTraceMasks.Index(str);
if ( index != wxNOT_FOUND )
ms_aTraceMasks.RemoveAt((size_t)index);
}
void wxLog::ClearTraceMasks()
{
ms_aTraceMasks.Clear();
}
void wxLog::TimeStamp(wxString *str)
{
#if wxUSE_DATETIME
if ( !ms_timestamp.empty() )
{
wxChar buf[256];
time_t timeNow;
(void)time(&timeNow);
struct tm tm;
wxStrftime(buf, WXSIZEOF(buf),
ms_timestamp, wxLocaltime_r(&timeNow, &tm));
str->Empty();
*str << buf << wxT(": ");
}
#endif // wxUSE_DATETIME
}
void wxLog::DoLog(wxLogLevel level, const wxString& szString, time_t t)
{
#if WXWIN_COMPATIBILITY_2_8
// DoLog() signature changed since 2.8, so we call the old versions here
// so that existing custom log classes still work:
DoLog(level, (const char*)szString.mb_str(), t);
DoLog(level, (const wchar_t*)szString.wc_str(), t);
#endif
switch ( level ) {
case wxLOG_FatalError:
LogString(_("Fatal error: ") + szString, t);
LogString(_("Program aborted."), t);
Flush();
#ifdef __WXWINCE__
ExitThread(3);
#else
abort();
#endif
break;
case wxLOG_Error:
LogString(_("Error: ") + szString, t);
break;
case wxLOG_Warning:
LogString(_("Warning: ") + szString, t);
break;
case wxLOG_Info:
if ( GetVerbose() )
case wxLOG_Message:
case wxLOG_Status:
default: // log unknown log levels too
LogString(szString, t);
break;
case wxLOG_Trace:
case wxLOG_Debug:
#ifdef __WXDEBUG__
{
wxString msg = level == wxLOG_Trace ? wxT("Trace: ")
: wxT("Debug: ");
msg << szString;
LogString(msg, t);
}
#endif // Debug
break;
}
}
void wxLog::DoLogString(const wxString& szString, time_t t)
{
#if WXWIN_COMPATIBILITY_2_8
// DoLogString() signature changed since 2.8, so we call the old versions
// here so that existing custom log classes still work; unfortunately this
// also means that we can't have the wxFAIL_MSG below in compat mode
DoLogString((const char*)szString.mb_str(), t);
DoLogString((const wchar_t*)szString.wc_str(), t);
#else
wxFAIL_MSG(wxT("DoLogString must be overriden if it's called."));
wxUnusedVar(szString);
wxUnusedVar(t);
#endif
}
void wxLog::Flush()
{
// nothing to do here
}
/*static*/ bool wxLog::IsAllowedTraceMask(const wxString& mask)
{
for ( wxArrayString::iterator it = ms_aTraceMasks.begin(),
en = ms_aTraceMasks.end();
it != en; ++it )
if ( *it == mask)
return true;
return false;
}
// ----------------------------------------------------------------------------
// wxLogBuffer implementation
// ----------------------------------------------------------------------------
void wxLogBuffer::Flush()
{
if ( !m_str.empty() )
{
wxMessageOutputBest out;
out.Printf(_T("%s"), m_str.c_str());
m_str.clear();
}
}
void wxLogBuffer::DoLog(wxLogLevel level, const wxString& szString, time_t t)
{
switch ( level )
{
case wxLOG_Trace:
case wxLOG_Debug:
#ifdef __WXDEBUG__
// don't put debug messages in the buffer, we don't want to show
// them to the user in a msg box, log them immediately
{
wxString str;
TimeStamp(&str);
str += szString;
wxMessageOutputDebug dbgout;
dbgout.Printf(_T("%s\n"), str.c_str());
}
#endif // __WXDEBUG__
break;
default:
wxLog::DoLog(level, szString, t);
}
}
void wxLogBuffer::DoLogString(const wxString& szString, time_t WXUNUSED(t))
{
m_str << szString << _T("\n");
}
// ----------------------------------------------------------------------------
// wxLogStderr class implementation
// ----------------------------------------------------------------------------
wxLogStderr::wxLogStderr(FILE *fp)
{
if ( fp == NULL )
m_fp = stderr;
else
m_fp = fp;
}
void wxLogStderr::DoLogString(const wxString& szString, time_t WXUNUSED(t))
{
wxString str;
TimeStamp(&str);
str << szString;
wxFputs(str, m_fp);
wxFputc(_T('\n'), m_fp);
fflush(m_fp);
// 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 dbgout;
dbgout.Printf(_T("%s\n"), str.c_str());
}
}
}
// ----------------------------------------------------------------------------
// wxLogStream implementation
// ----------------------------------------------------------------------------
#if wxUSE_STD_IOSTREAM
#include "wx/ioswrap.h"
wxLogStream::wxLogStream(wxSTD ostream *ostr)
{
if ( ostr == NULL )
m_ostr = &wxSTD cerr;
else
m_ostr = ostr;
}
void wxLogStream::DoLogString(const wxString& szString, time_t WXUNUSED(t))
{
wxString stamp;
TimeStamp(&stamp);
(*m_ostr) << stamp << szString << wxSTD endl;
}
#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 wxString& 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
// ============================================================================
// ----------------------------------------------------------------------------
// static variables
// ----------------------------------------------------------------------------
bool wxLog::ms_bRepetCounting = false;
wxString wxLog::ms_prevString;
unsigned int wxLog::ms_prevCounter = 0;
time_t wxLog::ms_prevTimeStamp= 0;
wxLogLevel wxLog::ms_prevLevel;
wxLog *wxLog::ms_pLogger = (wxLog *)NULL;
bool wxLog::ms_doLog = true;
bool wxLog::ms_bAutoCreate = true;
bool wxLog::ms_bVerbose = false;
wxLogLevel wxLog::ms_logLevel = wxLOG_Max; // log everything by default
size_t wxLog::ms_suspendCount = 0;
wxString wxLog::ms_timestamp(wxT("%X")); // time only, no date
wxTraceMask wxLog::ms_ulTraceMask = (wxTraceMask)0;
wxArrayString wxLog::ms_aTraceMasks;
// ----------------------------------------------------------------------------
// stdout error logging helper
// ----------------------------------------------------------------------------
// helper function: wraps the message and justifies it under given position
// (looks more pretty on the terminal). Also adds newline at the end.
//
// TODO this is now disabled until I find a portable way of determining the
// terminal window size (ok, I found it but does anybody really cares?)
#ifdef LOG_PRETTY_WRAP
static void wxLogWrap(FILE *f, const char *pszPrefix, const char *psz)
{
size_t nMax = 80; // FIXME
size_t nStart = strlen(pszPrefix);
fputs(pszPrefix, f);
size_t n;
while ( *psz != '\0' ) {
for ( n = nStart; (n < nMax) && (*psz != '\0'); n++ )
putc(*psz++, f);
// wrapped?
if ( *psz != '\0' ) {
/*putc('\n', f);*/
for ( n = 0; n < nStart; n++ )
putc(' ', f);
// as we wrapped, squeeze all white space
while ( isspace(*psz) )
psz++;
}
}
putc('\n', f);
}
#endif //LOG_PRETTY_WRAP
// ----------------------------------------------------------------------------
// error code/error message retrieval functions
// ----------------------------------------------------------------------------
// get error code from syste
unsigned long wxSysErrorCode()
{
#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
return ::GetLastError();
#else //Unix
return errno;
#endif //Win/Unix
}
// get error message from system
const wxChar *wxSysErrorMsg(unsigned long nErrCode)
{
if ( nErrCode == 0 )
nErrCode = wxSysErrorCode();
#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
static wxChar s_szBuf[1024];
// get error message from system
LPVOID lpMsgBuf;
if ( ::FormatMessage
(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
nErrCode,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL
) == 0 )
{
// if this happens, something is seriously wrong, so don't use _() here
// for safety
wxSprintf(s_szBuf, _T("unknown error %lx"), nErrCode);
return s_szBuf;
}
// copy it to our buffer and free memory
// Crashes on SmartPhone (FIXME)
#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 // !__SMARTPHONE__
{
s_szBuf[0] = wxT('\0');
}
return s_szBuf;
#else // !__WXMSW__
#if wxUSE_UNICODE
static wchar_t s_wzBuf[1024];
wxConvCurrent->MB2WC(s_wzBuf, strerror((int)nErrCode),
WXSIZEOF(s_wzBuf) - 1);
return s_wzBuf;
#else
return strerror((int)nErrCode);
#endif
#endif // __WXMSW__/!__WXMSW__
}
#endif // wxUSE_LOG
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