/////////////////////////////////////////////////////////////////////////////
// Name: common/timercmn.cpp
// Purpose: Common timer implementation
-// Author: Julian Smart (original version)
-// Modified by: Vadim Zeitlin on 12.11.99 to get rid of all ifdefs
-// Sylvain Bougnoux to add wxStopWatch class
-//
-// Completely rewritten from scratch on Dic/99 by
-// Guillermo Rodriguez <guille@iies.es>
-//
+// 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
// (c) 1999 Guillermo Rodriguez <guille@iies.es>
-// Licence: wxWindows license
+// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// ============================================================================
// ----------------------------------------------------------------------------
-// headers
+// wxWin headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#include "wx/timer.h"
#include "wx/longlong.h"
+// ----------------------------------------------------------------------------
+// System headers
+// ----------------------------------------------------------------------------
+
#if defined(__WIN32__)
#include <windows.h>
#endif
+#if defined(__WIN32__) && !defined(HAVE_FTIME)
+ #define HAVE_FTIME
+#endif
+
+#if defined(__VISAGECPP__) && !defined(HAVE_FTIME)
+ #define HAVE_FTIME
+# if __IBMCPP__ >= 400
+ # define ftime(x) _ftime(x)
+# endif
+#endif
+
#include <time.h>
#ifndef __WXMAC__
#include <sys/types.h> // for time_t
#include <sys/timeb.h>
#endif
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
+
+#if wxUSE_GUI
+ IMPLEMENT_DYNAMIC_CLASS(wxTimerEvent, wxEvent)
+#endif // wxUSE_GUI
+
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
// implementation
// ============================================================================
-wxLongLong wxGetLocalTimeMillis();
+// ----------------------------------------------------------------------------
+// wxTimerBase
+// ----------------------------------------------------------------------------
+
+#if wxUSE_GUI
+
+void wxTimerBase::Notify()
+{
+ // 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.") );
+
+ wxTimerEvent event(m_idTimer, m_milli);
+ (void)m_owner->ProcessEvent(event);
+}
+
+bool wxTimerBase::Start(int milliseconds, bool oneShot)
+{
+ 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;
+}
+
+#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// wxStopWatch
void wxStopWatch::Start(long t)
{
m_t0 = wxGetLocalTimeMillis() - t;
-
m_pause = 0;
}
-long wxStopWatch::Time() const
+long wxStopWatch::GetElapsedTime() const
{
- return (m_pause ? m_pause : GetElapsedTime());
+ return (wxGetLocalTimeMillis() - m_t0).GetLo();
}
-long wxStopWatch::GetElapsedTime() const
+long wxStopWatch::Time() const
{
- return (wxGetLocalTimeMillis() - m_t0).GetLo();
+ return (m_pause ? m_pause : GetElapsedTime());
}
// ----------------------------------------------------------------------------
// old timer functions superceded by wxStopWatch
// ----------------------------------------------------------------------------
-static wxLongLong wxStartTime = 0;
+static wxLongLong wxStartTime = 0l;
// starts the global timer
void wxStartTimer()
// Get UTC time as seconds since 00:00:00, Jan 1st 1970
long wxGetUTCTime()
{
- struct tm tm, *ptm;
+ struct tm tm;
+ struct tm *ptm;
time_t t0, t1;
// This cannot be made static because mktime can overwrite it
if (t0 != (time_t)-1 )
return (long)difftime(t1, t0) + (60 * 60 * 24 * 4);
- wxLogSysError(_("Failed 2nd mktime"));
+ wxLogSysError(_("mktime() failed"));
+ }
+ else
+ {
+ wxLogSysError(_("gmtime() failed"));
}
- wxLogSysError(_("Failed gmtime"));
}
- wxLogSysError(_("Failed to get the UTC system time"));
+
+ wxLogError(_("Failed to get the UTC system time."));
+
return -1;
}
// Get local time as milliseconds since 00:00:00, Jan 1st 1970
wxLongLong wxGetLocalTimeMillis()
{
- // We use wxGetLocalTime() to get the seconds since
- // 00:00:00 Jan 1st 1970 and then whatever is available
- // to get millisecond resolution.
- //
- wxLongLong val = 1000 * wxGetLocalTime();
+ wxLongLong val = 1000l;
- // If we got here, do not fail even if we can't get
- // millisecond resolution.
- //
-#if defined(__WIN32__)
- SYSTEMTIME st;
- ::GetLocalTime(&st);
- return (val + st.wMilliseconds);
-#elif defined(HAVE_GETTIMEOFDAY)
+ // If possible, use a functin which avoids conversions from
+ // broken-up time structures to milliseconds,
+
+#if defined(HAVE_GETTIMEOFDAY)
struct timeval tp;
if ( wxGetTimeOfDay(&tp, (struct timezone *)NULL) != -1 )
{
+ val *= tp.tv_sec;
return (val + (tp.tv_usec / 1000));
}
-#elif defined(HAVE_FTIME)
- struct timeb tp;
- if ( ftime(&tp) == 0 )
+ else
{
- return (val + tp.millitm);
+ 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);
+#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__)
+ #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
return val;
+
+#endif // time functions
}
projects / wxWidgets.git / blobdiff