/////////////////////////////////////////////////////////////////////////////
-// Name: timercmn.cpp
+// Name: common/timercmn.cpp
// Purpose: Common timer implementation
-// Author: Julian Smart
+// Author:
+// Original version by Julian Smart
+// Vadim Zeitlin got rid of all ifdefs (11.12.99)
+// Sylvain Bougnoux added wxStopWatch class
+// Guillermo Rodriguez <guille@iies.es> rewrote from scratch (Dic/99)
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// (c) 1999 Guillermo Rodriguez <guille@iies.es>
+// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxWin headers
+// ----------------------------------------------------------------------------
+
#ifdef __GNUG__
-//#pragma implementation "timercmn.h"
-#pragma implementation
+ #pragma implementation "timerbase.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#ifndef WX_PRECOMP
-#include "wx/defs.h"
-#include "wx/list.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/thread.h"
#endif
#include "wx/timer.h"
+#include "wx/longlong.h"
-#if defined(__SVR4__) && !defined(__SYSV__)
-#define __SYSV__
-#endif
+// ----------------------------------------------------------------------------
+// System headers
+// ----------------------------------------------------------------------------
-#include <time.h>
+#if defined(__WIN32__)
+ #include <windows.h>
+#endif
-#ifndef __WXMAC__
-#include <sys/types.h>
+#if defined(__WIN32__) && !defined(HAVE_FTIME) && !defined(__MWERKS__)
+ #define HAVE_FTIME
#endif
-#if (!defined(__SC__) && !defined(__SGI__) && !defined(__GNUWIN32__) && !defined(__MWERKS__)) || defined(__MINGW32__)
-#include <sys/timeb.h>
+#if defined(__VISAGECPP__) && !defined(HAVE_FTIME)
+ #define HAVE_FTIME
+# if __IBMCPP__ >= 400
+ # define ftime(x) _ftime(x)
+# endif
#endif
-#if defined(__linux__) || defined(__SVR4__) || defined(__SYSV__) || defined(__SGI__) || \
- defined(__ALPHA__) || defined(__GNUWIN32__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
- defined(__SALFORDC__) || defined(__EMX__)
-#include <sys/time.h>
+#if defined(__MWERKS__) && defined(__WXMSW__)
+# undef HAVE_FTIME
+# undef HAVE_GETTIMEOFDAY
#endif
-#ifdef __MINGW32__
-#include "windows.h"
+#include <time.h>
+#ifndef __WXMAC__
+ #include <sys/types.h> // for time_t
#endif
-#if defined(__SUN__) || defined(__OSF__) || defined(__FreeBSD__)
-// At least on Sun, ftime is undeclared.
-// Need to be verified on other platforms.
-extern "C" int ftime(struct timeb *tp);
-//extern "C" int gettimeofday(struct timeval *tp, void *);
-// extern "C" time_t time(time_t);
-// #include <sys/timeb.h>
-#if defined(__SVR4__) && !defined(__ALPHA__)
-// ditto for gettimeofday on Solaris 2.x.
-extern "C" int gettimeofday(struct timeval *tp, void *);
+#if defined(HAVE_GETTIMEOFDAY)
+ #include <sys/time.h>
+ #include <unistd.h>
+#elif defined(HAVE_FTIME)
+ #include <sys/timeb.h>
#endif
+
+#ifdef __WXMAC__
+ #include <Timer.h>
+ #include <DriverServices.h>
#endif
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
+
+#if wxUSE_GUI && wxUSE_TIMER
+ IMPLEMENT_DYNAMIC_CLASS(wxTimerEvent, wxEvent)
+#endif // wxUSE_GUI
+
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
+
+// on some really old systems gettimeofday() doesn't have the second argument,
+// define wxGetTimeOfDay() to hide this difference
+#ifdef HAVE_GETTIMEOFDAY
+ #ifdef WX_GETTIMEOFDAY_NO_TZ
+ struct timezone;
+ #define wxGetTimeOfDay(tv, tz) gettimeofday(tv)
+ #else
+ #define wxGetTimeOfDay(tv, tz) gettimeofday((tv), (tz))
+ #endif
+#endif // HAVE_GETTIMEOFDAY
+
+// ============================================================================
+// implementation
+// ============================================================================
-/*
- * Timer functions
- *
- */
+// ----------------------------------------------------------------------------
+// wxTimerBase
+// ----------------------------------------------------------------------------
-long wxStartTime = 0;
-void wxStartTimer(void)
+#if wxUSE_GUI && wxUSE_TIMER
+
+wxTimerBase::~wxTimerBase()
{
- wxStartTime=wxGetCurrentMTime();
+ // this destructor is required for Darwin
}
-// Returns elapsed time in milliseconds
-long wxGetElapsedTime(bool resetTimer)
+void wxTimerBase::Notify()
{
- long oldTime = wxStartTime;
- long newTime=wxGetCurrentMTime();
+ // the base class version generates an event if it has owner - which it
+ // should because otherwise nobody can process timer events
+ wxCHECK_RET( m_owner, _T("wxTimer::Notify() should be overridden.") );
- if (resetTimer) wxStartTime = newTime;
- return newTime - oldTime;
+ wxTimerEvent event(m_idTimer, m_milli);
+ (void)m_owner->ProcessEvent(event);
}
-
-// Get number of seconds since 00:00:00 GMT, Jan 1st 1970.
-long wxGetCurrentTime(void)
+bool wxTimerBase::Start(int milliseconds, bool oneShot)
{
- return wxGetCurrentMTime()/1000;
+ // under MSW timers only work when they're started from the main thread so
+ // let the caller know about it
+#if wxUSE_THREADS
+ wxASSERT_MSG( wxThread::IsMain(),
+ _T("timer can only be started from the main thread") );
+#endif // wxUSE_THREADS
+
+ if ( IsRunning() )
+ {
+ // not stopping the already running timer might work for some
+ // platforms (no problems under MSW) but leads to mysterious crashes
+ // on the others (GTK), so to be on the safe side do it here
+ Stop();
+ }
+
+ if ( milliseconds != -1 )
+ {
+ m_milli = milliseconds;
+ }
+
+ m_oneShot = oneShot;
+
+ return TRUE;
}
-// return GMT time in millisecond
-long wxGetCurrentMTime()
+#endif // wxUSE_GUI
+
+// ----------------------------------------------------------------------------
+// wxStopWatch
+// ----------------------------------------------------------------------------
+
+#if wxUSE_LONGLONG
+
+void wxStopWatch::Start(long t)
{
-#if defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || \
- (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
- struct timeval tp;
-#if defined(__SYSV__) || (defined (__GNUWIN32__) && !defined (__MINGW32__))
- gettimeofday(&tp, (struct timezone *)NULL);
-#else
- gettimeofday(&tp);
-#endif
- return (1000*tp.tv_sec + tp.tv_usec / 1000);
-#elif (defined(__SC__) || defined(__SGI__) || defined(___BSDI__) || defined(__ALPHA__) || \
- defined(__MINGW32__)|| defined(__MWERKS__) || defined(__FreeBSD__))
- time_t t0;
- struct tm *tp;
- time(&t0);
- tp = localtime(&t0);
- return 1000*(60*(60*tp->tm_hour+tp->tm_min)+tp->tm_sec);
-#else
- struct timeb tp;
- ftime(&tp);
- return (1000*tp.time + tp.millitm);
-#endif
+ m_t0 = wxGetLocalTimeMillis() - t;
+ m_pause = 0;
+ m_pauseCount = 0;
}
-//---------------
-// wxChrono class
-// This class encapsulates the above fonctions,
-// such that several wxChrono can be created
-// simultaneously
-
-wxChrono::wxChrono()
+long wxStopWatch::GetElapsedTime() const
{
- Start();
+ return (wxGetLocalTimeMillis() - m_t0).GetLo();
}
-void wxChrono::Start(long t)
+long wxStopWatch::Time() const
{
- m_t0=wxGetCurrentMTime()-t;
- m_pause=0;
+ return m_pauseCount ? m_pause : GetElapsedTime();
}
-void wxChrono::Pause()
+#endif // wxUSE_LONGLONG
+
+// ----------------------------------------------------------------------------
+// old timer functions superceded by wxStopWatch
+// ----------------------------------------------------------------------------
+
+#if wxUSE_LONGLONG
+
+static wxLongLong wxStartTime = 0l;
+
+// starts the global timer
+void wxStartTimer()
{
- m_pause=wxGetCurrentMTime()-m_t0;
+ wxStartTime = wxGetLocalTimeMillis();
}
-void wxChrono::Resume()
+// Returns elapsed time in milliseconds
+long wxGetElapsedTime(bool resetTimer)
{
- m_t0=wxGetCurrentMTime()-m_pause;
- m_pause=0;
+ wxLongLong oldTime = wxStartTime;
+ wxLongLong newTime = wxGetLocalTimeMillis();
+
+ if ( resetTimer )
+ wxStartTime = newTime;
+
+ return (newTime - oldTime).GetLo();
}
-long wxChrono::Time()
+#endif // wxUSE_LONGLONG
+
+// ----------------------------------------------------------------------------
+// the functions to get the current time and timezone info
+// ----------------------------------------------------------------------------
+
+// Get local time as seconds since 00:00:00, Jan 1st 1970
+long wxGetLocalTime()
{
- if (m_pause) return m_pause;
- return wxGetCurrentMTime()-m_t0;
+ struct tm tm;
+ time_t t0, t1;
+
+ // This cannot be made static because mktime can overwrite it.
+ //
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_year = 70;
+ tm.tm_mon = 0;
+ tm.tm_mday = 5; // not Jan 1st 1970 due to mktime 'feature'
+ tm.tm_hour = 0;
+ tm.tm_min = 0;
+ tm.tm_sec = 0;
+ tm.tm_isdst = -1; // let mktime guess
+
+ // Note that mktime assumes that the struct tm contains local time.
+ //
+ t1 = time(&t1); // now
+ t0 = mktime(&tm); // origin
+
+ // Return the difference in seconds.
+ //
+ if (( t0 != (time_t)-1 ) && ( t1 != (time_t)-1 ))
+ return (long)difftime(t1, t0) + (60 * 60 * 24 * 4);
+
+ wxLogSysError(_("Failed to get the local system time"));
+ return -1;
}
+// Get UTC time as seconds since 00:00:00, Jan 1st 1970
+long wxGetUTCTime()
+{
+ struct tm tm;
+ struct tm *ptm;
+ time_t t0, t1;
+
+ // This cannot be made static because mktime can overwrite it
+ //
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_year = 70;
+ tm.tm_mon = 0;
+ tm.tm_mday = 5; // not Jan 1st 1970 due to mktime 'feature'
+ tm.tm_hour = 0;
+ tm.tm_min = 0;
+ tm.tm_sec = 0;
+ tm.tm_isdst = -1; // let mktime guess
+
+ // Note that mktime assumes that the struct tm contains local time.
+ //
+ t1 = time(&t1); // now
+ t0 = mktime(&tm); // origin in localtime
+ if (( t0 != (time_t)-1 ) && ( t1 != (time_t)-1 ))
+ {
+ // To get t0 as GMT we convert to a struct tm with gmtime,
+ // and then back again.
+ //
+ ptm = gmtime(&t0);
-// EXPERIMENTAL: comment this out if it doesn't compile.
-#ifndef __VMS__
-bool wxGetLocalTime(long *timeZone, int *dstObserved)
+ if (ptm)
+ {
+ memcpy(&tm, ptm, sizeof(tm));
+ t0 = mktime(&tm);
+
+ if (t0 != (time_t)-1 )
+ return (long)difftime(t1, t0) + (60 * 60 * 24 * 4);
+ wxLogSysError(_("mktime() failed"));
+ }
+ else
+ {
+ wxLogSysError(_("gmtime() failed"));
+ }
+ }
+
+ wxLogError(_("Failed to get the UTC system time."));
+
+ return -1;
+}
+
+#if wxUSE_LONGLONG
+
+// Get local time as milliseconds since 00:00:00, Jan 1st 1970
+wxLongLong wxGetLocalTimeMillis()
{
-#if defined(__MINGW32__)
- time_t t0;
- struct tm *tp;
- time(&t0);
- tp = localtime(&t0);
-# if __GNUC__ == 2 && __GNUC_MINOR__ <= 8
- // gcc 2.8.x or earlier
- timeb tz;
- ftime(& tz);
- *timeZone = tz._timezone;
-# else
- // egcs or gcc 2.95
- *timeZone = _timezone; // tp->tm_gmtoff; // ???
-# endif
- *dstObserved = tp->tm_isdst;
-#else
-// not mingw32...
-#if (((defined(__SYSV__) && !defined(__HPUX__)) || defined(__MSDOS__) || defined(__WXMSW__) || defined(__WXPM__)) \
- && !defined(__GNUWIN32__) && !defined(__MWERKS__) )
-# if defined(__BORLANDC__)
- /* Borland uses underscores */
- *timeZone = _timezone;
- *dstObserved = _daylight;
-# elif defined(__SALFORDC__)
- *timeZone = _timezone;
- *dstObserved = daylight;
-# elif defined(__VISAGECPP__)
- *timeZone = _timezone;
- *dstObserved = daylight;
-# else
- *timeZone = timezone;
- *dstObserved = daylight;
-# endif
-#elif defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || defined(__MWERKS__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
-# ifndef __MWERKS__ // shouldn't this be one scope below ?
- struct timeval tp;
-# endif
-# if defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32))
- struct timezone tz;
- gettimeofday(&tp, &tz);
- *timeZone = 60*(tz.tz_minuteswest);
- *dstObserved = tz.tz_dsttime;
-# else
- time_t t0;
- struct tm *tp;
- time(&t0);
- tp = localtime(&t0);
-# ifndef __MWERKS__
- *timeZone = tp->tm_gmtoff; // ???
-# else
- *timeZone = 0 ;
-# endif
- *dstObserved = tp->tm_isdst;
-#endif
-#elif defined(__WXSTUBS__)
- return FALSE;
-#else
-// #error wxGetLocalTime not implemented.
- struct timeval tp;
- struct timezone tz;
- gettimeofday(&tp, &tz);
- *timeZone = 60*(tz.tz_minuteswest);
- *dstObserved = tz.tz_dsttime;
-#endif
+ wxLongLong val = 1000l;
+
+ // If possible, use a function which avoids conversions from
+ // broken-up time structures to milliseconds
+
+#if defined(__WXMSW__) && defined(__MWERKS__)
+ // This should probably be the way all WXMSW compilers should do it
+ // Go direct to the OS for time
+
+ SYSTEMTIME thenst = { 1970, 1, 4, 1, 0, 0, 0, 0 }; // 00:00:00 Jan 1st 1970
+ FILETIME thenft;
+ SystemTimeToFileTime( &thenst, &thenft );
+ wxLongLong then( thenft.dwHighDateTime, thenft.dwLowDateTime ); // time in 100 nanoseconds
+
+ SYSTEMTIME nowst;
+ GetLocalTime( &nowst );
+ FILETIME nowft;
+ SystemTimeToFileTime( &nowst, &nowft );
+ wxLongLong now( nowft.dwHighDateTime, nowft.dwLowDateTime ); // time in 100 nanoseconds
+
+ return ( now - then ) / 10000.0; // time from 00:00:00 Jan 1st 1970 to now in milliseconds
+
+#elif defined(HAVE_GETTIMEOFDAY)
+ struct timeval tp;
+ if ( wxGetTimeOfDay(&tp, (struct timezone *)NULL) != -1 )
+ {
+ val *= tp.tv_sec;
+ return (val + (tp.tv_usec / 1000));
+ }
+ else
+ {
+ wxLogError(_("wxGetTimeOfDay failed."));
+ return 0;
+ }
+#elif defined(HAVE_FTIME)
+ struct timeb tp;
+
+ // ftime() is void and not int in some mingw32 headers, so don't
+ // test the return code (well, it shouldn't fail anyhow...)
+ (void)ftime(&tp);
+ val *= tp.time;
+ return (val + tp.millitm);
+#elif defined(__WXMAC__)
+
+ UInt64 gMilliAtStart = 0 ;
+ Nanoseconds upTime = AbsoluteToNanoseconds( UpTime() ) ;
+ if ( gMilliAtStart == 0 )
+ {
+ time_t start = time(NULL) ;
+ gMilliAtStart = ((UInt64) start) * 1000L ;
+ gMilliAtStart -= upTime.lo / 1000 ;
+ gMilliAtStart -= ( ( (UInt64) upTime.hi ) << 32 ) / 1000 ;
+ }
+ UInt64 millival = gMilliAtStart ;
+ millival += upTime.lo / 1000 ;
+ millival += ( ( (UInt64) upTime.hi ) << 32 ) / 1000 ;
+ val = millival ;
+ return val ;
+#else // no gettimeofday() nor ftime()
+ // We use wxGetLocalTime() to get the seconds since
+ // 00:00:00 Jan 1st 1970 and then whatever is available
+ // to get millisecond resolution.
+ //
+ // NOTE that this might lead to a problem if the clocks
+ // use different sources, so this approach should be
+ // avoided where possible.
+
+ val *= wxGetLocalTime();
+
+// GRG: This will go soon as all WIN32 seem to have ftime
+#if defined (__WIN32__)
+ // If your platform/compiler needs to use two different functions
+ // to get ms resolution, please do NOT just shut off these warnings,
+ // drop me a line instead at <guille@iies.es>
+ #warning "Possible clock skew bug in wxGetLocalTimeMillis()!"
+
+ SYSTEMTIME st;
+ ::GetLocalTime(&st);
+ val += st.wMilliseconds;
+#else // !Win32
+ // If your platform/compiler does not support ms resolution please
+ // do NOT just shut off these warnings, drop me a line instead at
+ // <guille@iies.es>
+
+ #if defined(__VISUALC__) || defined (__WATCOMC__)
+ #pragma message("wxStopWatch will be up to second resolution!")
+ #elif defined(__BORLANDC__)
+ #pragma message "wxStopWatch will be up to second resolution!"
+ #else
+ #warning "wxStopWatch will be up to second resolution!"
+ #endif // compiler
#endif
- // __MINGW32__
- return TRUE;
+
+ return val;
+
+#endif // time functions
}
-#endif
+
+#endif // wxUSE_LONGLONG
+
projects / wxWidgets.git / blobdiff