// 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
/////////////////////////////////////////////////////////////////////////////
#include "wx/msgout.h"
#include "wx/textfile.h"
#include "wx/thread.h"
+#include "wx/private/threadinfo.h"
#include "wx/crt.h"
+#include "wx/vector.h"
// other standard headers
#ifndef __WXWINCE__
#include <stdlib.h>
-#ifndef __WXPALMOS5__
#ifndef __WXWINCE__
#include <time.h>
#else
#include "wx/msw/wince/time.h"
#endif
-#endif /* ! __WXPALMOS5__ */
#if defined(__WINDOWS__)
#include "wx/msw/private.h" // includes windows.h
#endif
+#undef wxLOG_COMPONENT
+const char *wxLOG_COMPONENT = "";
+
+// this macro allows to define an object which will be initialized before any
+// other function in this file is called: this is necessary to allow log
+// functions to be used during static initialization (this is not advisable
+// anyhow but we should at least try to not crash) and to also ensure that they
+// are initialized by the time static initialization is done, i.e. before any
+// threads are created hopefully
+//
+// the net effect of all this is that you can use Get##name() function to
+// access the object without worrying about it being not initialized
+//
+// see also WX_DEFINE_GLOBAL_CONV2() in src/common/strconv.cpp
+#define WX_DEFINE_GLOBAL_VAR(type, name) \
+ inline type& Get##name() \
+ { \
+ static type s_##name; \
+ return s_##name; \
+ } \
+ \
+ type *gs_##name##Ptr = &Get##name()
+
#if wxUSE_THREADS
-// define static functions providing access to the critical sections we use
-// instead of just using static critical section variables as log functions may
-// be used during static initialization and while this is certainly not
-// advisable it's still better to not crash (as we'd do if we used a yet
-// uninitialized critical section) if it happens
+wxTLS_TYPE(wxThreadSpecificInfo) wxThreadInfoVar;
-static inline wxCriticalSection& GetTraceMaskCS()
+namespace
{
- static wxCriticalSection s_csTrace;
- return s_csTrace;
-}
+// contains messages logged by the other threads and waiting to be shown until
+// Flush() is called in the main one
+typedef wxVector<wxLogRecord> wxLogRecords;
+wxLogRecords gs_bufferedLogRecords;
-static inline wxCriticalSection& GetPreviousLogCS()
-{
- static wxCriticalSection s_csPrev;
+#define WX_DEFINE_LOG_CS(name) WX_DEFINE_GLOBAL_VAR(wxCriticalSection, name##CS)
- return s_csPrev;
-}
+// this critical section is used for buffering the messages from threads other
+// than main, i.e. it protects all accesses to gs_bufferedLogRecords above
+WX_DEFINE_LOG_CS(BackgroundLog);
+
+// this one is used for protecting TraceMasks() from concurrent access
+WX_DEFINE_LOG_CS(TraceMask);
+
+// and this one is used for GetComponentLevels()
+WX_DEFINE_LOG_CS(Levels);
+
+} // anonymous namespace
#endif // wxUSE_THREADS
PreviousLogInfo gs_prevLog;
+
+// map containing all components for which log level was explicitly set
+//
+// NB: all accesses to it must be protected by GetLevelsCS() critical section
+WX_DEFINE_GLOBAL_VAR(wxStringToNumHashMap, ComponentLevels);
+
+// ----------------------------------------------------------------------------
+// wxLogOutputBest: wxLog wrapper around wxMessageOutputBest
+// ----------------------------------------------------------------------------
+
+class wxLogOutputBest : public wxLog
+{
+public:
+ wxLogOutputBest() { }
+
+protected:
+ virtual void DoLogText(const wxString& msg)
+ {
+ wxMessageOutputBest().Output(msg);
+ }
+
+private:
+ wxDECLARE_NO_COPY_CLASS(wxLogOutputBest);
+};
+
} // anonymous namespace
// ============================================================================
}
// ----------------------------------------------------------------------------
-// wxLog class implementation
+// wxLogFormatter class implementation
// ----------------------------------------------------------------------------
-unsigned wxLog::LogLastRepeatIfNeeded()
+wxString
+wxLogFormatter::Format(wxLogLevel level,
+ const wxString& msg,
+ const wxLogRecordInfo& info) const
{
- wxCRIT_SECT_LOCKER(lock, GetPreviousLogCS());
+ wxString prefix;
- return LogLastRepeatIfNeededUnlocked();
+ // don't time stamp debug messages under MSW as debug viewers usually
+ // already have an option to do it
+#ifdef __WINDOWS__
+ if ( level != wxLOG_Debug && level != wxLOG_Trace )
+#endif // __WINDOWS__
+ prefix = FormatTime(info.timestamp);
+
+ switch ( level )
+ {
+ case wxLOG_Error:
+ prefix += _("Error: ");
+ break;
+
+ case wxLOG_Warning:
+ prefix += _("Warning: ");
+ break;
+
+ // don't prepend "debug/trace" prefix under MSW as it goes to the debug
+ // window anyhow and so can't be confused with something else
+#ifndef __WINDOWS__
+ case wxLOG_Debug:
+ // this prefix (as well as the one below) is intentionally not
+ // translated as nobody translates debug messages anyhow
+ prefix += "Debug: ";
+ break;
+
+ case wxLOG_Trace:
+ prefix += "Trace: ";
+ break;
+#endif // !__WINDOWS__
+ }
+
+ return prefix + msg;
+}
+
+wxString
+wxLogFormatter::FormatTime(time_t t) const
+{
+ wxString str;
+ wxLog::TimeStamp(&str, t);
+
+ return str;
}
-unsigned wxLog::LogLastRepeatIfNeededUnlocked()
+
+// ----------------------------------------------------------------------------
+// wxLog class implementation
+// ----------------------------------------------------------------------------
+
+unsigned wxLog::LogLastRepeatIfNeeded()
{
const unsigned count = gs_prevLog.numRepeated;
{
wxString msg;
#if wxUSE_INTL
- msg.Printf(wxPLURAL("The previous message repeated once.",
- "The previous message repeated %lu times.",
- gs_prevLog.numRepeated),
- gs_prevLog.numRepeated);
+ if ( gs_prevLog.numRepeated == 1 )
+ {
+ // We use a separate message for this case as "repeated 1 time"
+ // looks somewhat strange.
+ msg = _("The previous message repeated once.");
+ }
+ else
+ {
+ // Notice that we still use wxPLURAL() to ensure that multiple
+ // numbers of times are correctly formatted, even though we never
+ // actually use the singular string.
+ msg.Printf(wxPLURAL("The previous message repeated %lu time.",
+ "The previous message repeated %lu times.",
+ gs_prevLog.numRepeated),
+ gs_prevLog.numRepeated);
+ }
#else
- msg.Printf(wxS("The previous message was repeated %lu times."),
+ msg.Printf(wxS("The previous message was repeated %lu time(s)."),
gs_prevLog.numRepeated);
#endif
gs_prevLog.numRepeated = 0;
{
wxMessageOutputDebug().Printf
(
- wxS("Last repeated message (\"%s\", %lu times) wasn't output"),
+#if wxUSE_INTL
+ wxPLURAL
+ (
+ "Last repeated message (\"%s\", %lu time) wasn't output",
+ "Last repeated message (\"%s\", %lu times) wasn't output",
+ gs_prevLog.numRepeated
+ ),
+#else
+ wxS("Last repeated message (\"%s\", %lu time(s)) wasn't output"),
+#endif
gs_prevLog.msg,
gs_prevLog.numRepeated
);
}
+
+ delete m_formatter;
}
// ----------------------------------------------------------------------------
{
wxSafeShowMessage(wxS("Fatal Error"), msg);
-#ifdef __WXWINCE__
- ExitThread(3);
-#else
- abort();
-#endif
+ wxAbort();
}
- wxLog *pLogger = GetActiveTarget();
- if ( !pLogger )
- return;
+ wxLog *logger;
- if ( GetRepetitionCounting() )
+#if wxUSE_THREADS
+ if ( !wxThread::IsMain() )
+ {
+ logger = wxThreadInfo.logger;
+ if ( !logger )
+ {
+ if ( ms_pLogger )
+ {
+ // buffer the messages until they can be shown from the main
+ // thread
+ wxCriticalSectionLocker lock(GetBackgroundLogCS());
+
+ gs_bufferedLogRecords.push_back(wxLogRecord(level, msg, info));
+
+ // ensure that our Flush() will be called soon
+ wxWakeUpIdle();
+ }
+ //else: we don't have any logger at all, there is no need to log
+ // anything
+
+ return;
+ }
+ //else: we have a thread-specific logger, we can send messages to it
+ // directly
+ }
+ else
+#endif // wxUSE_THREADS
{
- wxCRIT_SECT_LOCKER(lock, GetPreviousLogCS());
+ logger = GetMainThreadActiveTarget();
+ if ( !logger )
+ return;
+ }
+
+ logger->CallDoLogNow(level, msg, info);
+}
+void
+wxLog::CallDoLogNow(wxLogLevel level,
+ const wxString& msg,
+ const wxLogRecordInfo& info)
+{
+ if ( GetRepetitionCounting() )
+ {
if ( msg == gs_prevLog.msg )
{
gs_prevLog.numRepeated++;
return;
}
- pLogger->LogLastRepeatIfNeededUnlocked();
+ LogLastRepeatIfNeeded();
// reset repetition counter for a new message
gs_prevLog.msg = msg;
// handle extra data which may be passed to us by wxLogXXX()
wxString prefix, suffix;
- wxUIntPtr num;
+ wxUIntPtr num = 0;
if ( info.GetNumValue(wxLOG_KEY_SYS_ERROR_CODE, &num) )
{
- long err = static_cast<long>(num);
- if ( !err )
- err = wxSysErrorCode();
+ const long err = static_cast<long>(num);
suffix.Printf(_(" (error %ld: %s)"), err, wxSysErrorMsg(err));
}
}
#endif // wxUSE_LOG_TRACE
- pLogger->DoLogRecord(level, prefix + msg + suffix, info);
+ DoLogRecord(level, prefix + msg + suffix, info);
}
void wxLog::DoLogRecord(wxLogLevel level,
// but to call both of them
DoLog(level, (const char*)msg.mb_str(), info.timestamp);
DoLog(level, (const wchar_t*)msg.wc_str(), info.timestamp);
-#endif // WXWIN_COMPATIBILITY_2_8
-
-
- // TODO: it would be better to extract message formatting in a separate
- // wxLogFormatter class but for now we hard code formatting here
-
- wxString prefix;
-
- // don't time stamp debug messages under MSW as debug viewers usually
- // already have an option to do it
-#ifdef __WXMSW__
- if ( level != wxLOG_Debug && level != wxLOG_Trace )
-#endif // __WXMSW__
- TimeStamp(&prefix);
-
- // TODO: use the other wxLogRecordInfo fields
-
- switch ( level )
- {
- case wxLOG_Error:
- prefix += _("Error: ");
- break;
-
- case wxLOG_Warning:
- prefix += _("Warning: ");
- break;
-
- // don't prepend "debug/trace" prefix under MSW as it goes to the debug
- // window anyhow and so can't be confused with something else
-#ifndef __WXMSW__
- case wxLOG_Debug:
- // this prefix (as well as the one below) is intentionally not
- // translated as nobody translates debug messages anyhow
- prefix += "Debug: ";
- break;
-
- case wxLOG_Trace:
- prefix += "Trace: ";
- break;
-#endif // !__WXMSW__
- }
+#else // !WXWIN_COMPATIBILITY_2_8
+ wxUnusedVar(info);
+#endif // WXWIN_COMPATIBILITY_2_8/!WXWIN_COMPATIBILITY_2_8
- DoLogTextAtLevel(level, prefix + msg);
+ // Use wxLogFormatter to format the message
+ DoLogTextAtLevel(level, m_formatter->Format (level, msg, info));
}
void wxLog::DoLogTextAtLevel(wxLogLevel level, const wxString& msg)
// ----------------------------------------------------------------------------
wxLog *wxLog::GetActiveTarget()
+{
+#if wxUSE_THREADS
+ if ( !wxThread::IsMain() )
+ {
+ // check if we have a thread-specific log target
+ wxLog * const logger = wxThreadInfo.logger;
+
+ // the code below should be only executed for the main thread as
+ // CreateLogTarget() is not meant for auto-creating log targets for
+ // worker threads so skip it in any case
+ return logger ? logger : ms_pLogger;
+ }
+#endif // wxUSE_THREADS
+
+ return GetMainThreadActiveTarget();
+}
+
+/* static */
+wxLog *wxLog::GetMainThreadActiveTarget()
{
if ( ms_bAutoCreate && ms_pLogger == NULL ) {
// prevent infinite recursion if someone calls wxLogXXX() from
if ( wxTheApp != NULL )
ms_pLogger = wxTheApp->GetTraits()->CreateLogTarget();
else
- ms_pLogger = new wxLogStderr;
+ ms_pLogger = new wxLogOutputBest;
s_bInGetActiveTarget = false;
return pOldLogger;
}
+#if wxUSE_THREADS
+/* static */
+wxLog *wxLog::SetThreadActiveTarget(wxLog *logger)
+{
+ wxASSERT_MSG( !wxThread::IsMain(), "use SetActiveTarget() for main thread" );
+
+ wxLog * const oldLogger = wxThreadInfo.logger;
+ if ( oldLogger )
+ oldLogger->Flush();
+
+ wxThreadInfo.logger = logger;
+
+ return oldLogger;
+}
+#endif // wxUSE_THREADS
+
void wxLog::DontCreateOnDemand()
{
ms_bAutoCreate = false;
ms_bAutoCreate = true;
}
+// ----------------------------------------------------------------------------
+// wxLog components levels
+// ----------------------------------------------------------------------------
+
+/* static */
+void wxLog::SetComponentLevel(const wxString& component, wxLogLevel level)
+{
+ if ( component.empty() )
+ {
+ SetLogLevel(level);
+ }
+ else
+ {
+ wxCRIT_SECT_LOCKER(lock, GetLevelsCS());
+
+ GetComponentLevels()[component] = level;
+ }
+}
+
+/* static */
+wxLogLevel wxLog::GetComponentLevel(wxString component)
+{
+ wxCRIT_SECT_LOCKER(lock, GetLevelsCS());
+
+ const wxStringToNumHashMap& componentLevels = GetComponentLevels();
+ while ( !component.empty() )
+ {
+ wxStringToNumHashMap::const_iterator
+ it = componentLevels.find(component);
+ if ( it != componentLevels.end() )
+ return static_cast<wxLogLevel>(it->second);
+
+ component = component.BeforeLast('/');
+ }
+
+ return GetLogLevel();
+}
+
+// ----------------------------------------------------------------------------
+// wxLog trace masks
+// ----------------------------------------------------------------------------
+
+namespace
+{
+
+// because IsAllowedTraceMask() may be called during static initialization
+// (this is not recommended but it may still happen, see #11592) we can't use a
+// simple static variable which might be not initialized itself just yet to
+// store the trace masks, but need this accessor function which will ensure
+// that the variable is always correctly initialized before being accessed
+//
+// notice that this doesn't make accessing it MT-safe, of course, you need to
+// serialize accesses to it using GetTraceMaskCS() for this
+wxArrayString& TraceMasks()
+{
+ static wxArrayString s_traceMasks;
+
+ return s_traceMasks;
+}
+
+} // anonymous namespace
+
+/* static */ const wxArrayString& wxLog::GetTraceMasks()
+{
+ // because of this function signature (it returns a reference, not the
+ // object), it is inherently MT-unsafe so there is no need to acquire the
+ // lock here anyhow
+
+ return TraceMasks();
+}
+
void wxLog::AddTraceMask(const wxString& str)
{
wxCRIT_SECT_LOCKER(lock, GetTraceMaskCS());
- ms_aTraceMasks.push_back(str);
+ TraceMasks().push_back(str);
}
void wxLog::RemoveTraceMask(const wxString& str)
{
wxCRIT_SECT_LOCKER(lock, GetTraceMaskCS());
- int index = ms_aTraceMasks.Index(str);
+ int index = TraceMasks().Index(str);
if ( index != wxNOT_FOUND )
- ms_aTraceMasks.RemoveAt((size_t)index);
+ TraceMasks().RemoveAt((size_t)index);
}
void wxLog::ClearTraceMasks()
{
wxCRIT_SECT_LOCKER(lock, GetTraceMaskCS());
- ms_aTraceMasks.Clear();
+ TraceMasks().Clear();
}
-void wxLog::TimeStamp(wxString *str)
+/*static*/ bool wxLog::IsAllowedTraceMask(const wxString& mask)
{
+ wxCRIT_SECT_LOCKER(lock, GetTraceMaskCS());
+
+ const wxArrayString& masks = GetTraceMasks();
+ for ( wxArrayString::const_iterator it = masks.begin(),
+ en = masks.end();
+ it != en;
+ ++it )
+ {
+ if ( *it == mask)
+ return true;
+ }
+
+ return false;
+}
+
+// ----------------------------------------------------------------------------
+// wxLog miscellaneous other methods
+// ----------------------------------------------------------------------------
+
#if wxUSE_DATETIME
+
+void wxLog::TimeStamp(wxString *str)
+{
if ( !ms_timestamp.empty() )
{
- wxChar buf[256];
- time_t timeNow;
- (void)time(&timeNow);
+ *str = wxDateTime::UNow().Format(ms_timestamp);
+ *str += wxS(": ");
+ }
+}
+
+void wxLog::TimeStamp(wxString *str, time_t t)
+{
+ if ( !ms_timestamp.empty() )
+ {
+ *str = wxDateTime(t).Format(ms_timestamp);
+ *str += wxS(": ");
+ }
+}
+
+#else // !wxUSE_DATETIME
+
+void wxLog::TimeStamp(wxString*)
+{
+}
+
+void wxLog::TimeStamp(wxString*, time_t)
+{
+}
+
+#endif // wxUSE_DATETIME/!wxUSE_DATETIME
+
+#if wxUSE_THREADS
+
+void wxLog::FlushThreadMessages()
+{
+ // check if we have queued messages from other threads
+ wxLogRecords bufferedLogRecords;
+
+ {
+ wxCriticalSectionLocker lock(GetBackgroundLogCS());
+ bufferedLogRecords.swap(gs_bufferedLogRecords);
- struct tm tm;
- wxStrftime(buf, WXSIZEOF(buf),
- ms_timestamp, wxLocaltime_r(&timeNow, &tm));
+ // release the lock now to not keep it while we are logging the
+ // messages below, allowing background threads to run
+ }
- str->Empty();
- *str << buf << wxS(": ");
+ if ( !bufferedLogRecords.empty() )
+ {
+ for ( wxLogRecords::const_iterator it = bufferedLogRecords.begin();
+ it != bufferedLogRecords.end();
+ ++it )
+ {
+ CallDoLogNow(it->level, it->msg, it->info);
+ }
}
-#endif // wxUSE_DATETIME
+}
+
+/* static */
+bool wxLog::IsThreadLoggingEnabled()
+{
+ return !wxThreadInfo.loggingDisabled;
+}
+
+/* static */
+bool wxLog::EnableThreadLogging(bool enable)
+{
+ const bool wasEnabled = !wxThreadInfo.loggingDisabled;
+ wxThreadInfo.loggingDisabled = !enable;
+ return wasEnabled;
+}
+
+#endif // wxUSE_THREADS
+
+wxLogFormatter *wxLog::SetFormatter(wxLogFormatter* formatter)
+{
+ wxLogFormatter* formatterOld = m_formatter;
+ m_formatter = formatter ? formatter : new wxLogFormatter;
+
+ return formatterOld;
}
void wxLog::Flush()
LogLastRepeatIfNeeded();
}
-/*static*/ bool wxLog::IsAllowedTraceMask(const wxString& mask)
+/* static */
+void wxLog::FlushActive()
{
- wxCRIT_SECT_LOCKER(lock, GetTraceMaskCS());
+ if ( ms_suspendCount )
+ return;
- for ( wxArrayString::iterator it = ms_aTraceMasks.begin(),
- en = ms_aTraceMasks.end();
- it != en; ++it )
+ wxLog * const log = GetActiveTarget();
+ if ( log )
{
- if ( *it == mask)
- return true;
- }
+#if wxUSE_THREADS
+ if ( wxThread::IsMain() )
+ log->FlushThreadMessages();
+#endif // wxUSE_THREADS
- return false;
+ log->Flush();
+ }
}
// ----------------------------------------------------------------------------
void wxLogBuffer::Flush()
{
+ wxLog::Flush();
+
if ( !m_str.empty() )
{
wxMessageOutputBest out;
void wxLogStderr::DoLogText(const wxString& msg)
{
- wxFputs(msg + '\n', m_fp);
- fflush(m_fp);
+ // First send it to stderr, even if we don't have it (e.g. in a Windows GUI
+ // application under) it's not a problem to try to use it and it's easier
+ // than determining whether we do have it or not.
+ wxMessageOutputStderr(m_fp).Output(msg);
// 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
m_bPassMessages = true;
m_logNew = logger;
- m_logOld = wxLog::SetActiveTarget(this);
+
+ // Notice that we use GetActiveTarget() here instead of directly calling
+ // SetActiveTarget() to trigger wxLog auto-creation: if we're created as
+ // the first logger, we should still chain with the standard, implicit and
+ // possibly still not created standard logger instead of disabling normal
+ // logging entirely.
+ m_logOld = wxLog::GetActiveTarget();
+ wxLog::SetActiveTarget(this);
}
wxLogChain::~wxLogChain()
{
- delete m_logOld;
+ wxLog::SetActiveTarget(m_logOld);
if ( m_logNew != this )
delete m_logNew;
m_logOld->LogRecord(level, msg, info);
// and also send it to the new one
- if ( m_logNew && m_logNew != this )
- m_logNew->LogRecord(level, msg, info);
+ if ( m_logNew )
+ {
+ // don't call m_logNew->LogRecord() to avoid infinite recursion when
+ // m_logNew is this object itself
+ if ( m_logNew != this )
+ m_logNew->LogRecord(level, msg, info);
+ else
+ wxLog::DoLogRecord(level, msg, info);
+ }
}
#ifdef __VISUALC__
wxTraceMask wxLog::ms_ulTraceMask = (wxTraceMask)0;
#endif // wxDEBUG_LEVEL
-wxArrayString wxLog::ms_aTraceMasks;
-
// ----------------------------------------------------------------------------
// stdout error logging helper
// ----------------------------------------------------------------------------
// get error code from syste
unsigned long wxSysErrorCode()
{
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
return ::GetLastError();
#else //Unix
return errno;
if ( nErrCode == 0 )
nErrCode = wxSysErrorCode();
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
static wxChar s_szBuf[1024];
// get error message from system
}
return s_szBuf;
-#else // !__WXMSW__
+#else // !__WINDOWS__
#if wxUSE_UNICODE
static wchar_t s_wzBuf[1024];
wxConvCurrent->MB2WC(s_wzBuf, strerror((int)nErrCode),
#else
return strerror((int)nErrCode);
#endif
-#endif // __WXMSW__/!__WXMSW__
+#endif // __WINDOWS__/!__WINDOWS__
}
#endif // wxUSE_LOG
projects / wxWidgets.git / blobdiff