wxBase/GUI separation: 1st step, wxMSW should build, all the rest is broken
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21342 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
344
src/common/stopwatch.cpp
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344
src/common/stopwatch.cpp
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///////////////////////////////////////////////////////////////////////////////
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// Name: common/stopwatch.cpp
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// Purpose: wxStopWatch and other non-GUI stuff from wx/timer.h
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// Author:
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// Original version by Julian Smart
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// Vadim Zeitlin got rid of all ifdefs (11.12.99)
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// Sylvain Bougnoux added wxStopWatch class
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// Guillermo Rodriguez <guille@iies.es> rewrote from scratch (Dic/99)
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// Modified by:
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// Created: 20.06.2003 (extracted from common/timercmn.cpp)
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// RCS-ID: $Id$
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// Copyright: (c) 1998-2003 wxWindows Team
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// License: wxWindows license
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#endif //WX_PRECOMP
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#include "wx/timer.h"
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#include "wx/longlong.h"
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// ----------------------------------------------------------------------------
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// System headers
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// ----------------------------------------------------------------------------
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#if defined(__WIN32__)
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#include <windows.h>
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#endif
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#if defined(__WIN32__) && !defined(HAVE_FTIME) && !defined(__MWERKS__)
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#define HAVE_FTIME
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#endif
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#if defined(__VISAGECPP__) && !defined(HAVE_FTIME)
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#define HAVE_FTIME
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# if __IBMCPP__ >= 400
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# define ftime(x) _ftime(x)
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# endif
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#endif
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#if defined(__MWERKS__) && defined(__WXMSW__)
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# undef HAVE_FTIME
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# undef HAVE_GETTIMEOFDAY
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#endif
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#include <time.h>
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#ifndef __WXMAC__
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#include <sys/types.h> // for time_t
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#endif
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#if defined(HAVE_GETTIMEOFDAY)
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#include <sys/time.h>
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#include <unistd.h>
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#elif defined(HAVE_FTIME)
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#include <sys/timeb.h>
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#endif
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#ifdef __WXMAC__
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#include <Timer.h>
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#include <DriverServices.h>
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#endif
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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// on some really old systems gettimeofday() doesn't have the second argument,
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// define wxGetTimeOfDay() to hide this difference
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#ifdef HAVE_GETTIMEOFDAY
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#ifdef WX_GETTIMEOFDAY_NO_TZ
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struct timezone;
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#define wxGetTimeOfDay(tv, tz) gettimeofday(tv)
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#else
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#define wxGetTimeOfDay(tv, tz) gettimeofday((tv), (tz))
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#endif
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#endif // HAVE_GETTIMEOFDAY
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxStopWatch
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// ----------------------------------------------------------------------------
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#if wxUSE_STOPWATCH
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void wxStopWatch::Start(long t)
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{
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m_t0 = wxGetLocalTimeMillis() - t;
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m_pause = 0;
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m_pauseCount = 0;
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}
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long wxStopWatch::GetElapsedTime() const
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{
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return (wxGetLocalTimeMillis() - m_t0).GetLo();
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}
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long wxStopWatch::Time() const
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{
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return m_pauseCount ? m_pause : GetElapsedTime();
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}
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#endif // wxUSE_STOPWATCH
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// ----------------------------------------------------------------------------
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// old timer functions superceded by wxStopWatch
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// ----------------------------------------------------------------------------
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#if wxUSE_LONGLONG
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static wxLongLong wxStartTime = 0l;
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// starts the global timer
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void wxStartTimer()
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{
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wxStartTime = wxGetLocalTimeMillis();
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}
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// Returns elapsed time in milliseconds
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long wxGetElapsedTime(bool resetTimer)
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{
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wxLongLong oldTime = wxStartTime;
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wxLongLong newTime = wxGetLocalTimeMillis();
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if ( resetTimer )
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wxStartTime = newTime;
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return (newTime - oldTime).GetLo();
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}
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#endif // wxUSE_LONGLONG
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// ----------------------------------------------------------------------------
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// the functions to get the current time and timezone info
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// ----------------------------------------------------------------------------
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// Get local time as seconds since 00:00:00, Jan 1st 1970
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long wxGetLocalTime()
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{
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struct tm tm;
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time_t t0, t1;
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// This cannot be made static because mktime can overwrite it.
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//
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memset(&tm, 0, sizeof(tm));
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tm.tm_year = 70;
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tm.tm_mon = 0;
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tm.tm_mday = 5; // not Jan 1st 1970 due to mktime 'feature'
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tm.tm_hour = 0;
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tm.tm_min = 0;
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tm.tm_sec = 0;
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tm.tm_isdst = -1; // let mktime guess
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// Note that mktime assumes that the struct tm contains local time.
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//
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t1 = time(&t1); // now
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t0 = mktime(&tm); // origin
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// Return the difference in seconds.
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//
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if (( t0 != (time_t)-1 ) && ( t1 != (time_t)-1 ))
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return (long)difftime(t1, t0) + (60 * 60 * 24 * 4);
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wxLogSysError(_("Failed to get the local system time"));
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return -1;
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}
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// Get UTC time as seconds since 00:00:00, Jan 1st 1970
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long wxGetUTCTime()
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{
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struct tm tm;
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struct tm *ptm;
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time_t t0, t1;
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// This cannot be made static because mktime can overwrite it
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//
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memset(&tm, 0, sizeof(tm));
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tm.tm_year = 70;
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tm.tm_mon = 0;
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tm.tm_mday = 5; // not Jan 1st 1970 due to mktime 'feature'
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tm.tm_hour = 0;
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tm.tm_min = 0;
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tm.tm_sec = 0;
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tm.tm_isdst = -1; // let mktime guess
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// Note that mktime assumes that the struct tm contains local time.
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//
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t1 = time(&t1); // now
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t0 = mktime(&tm); // origin in localtime
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if (( t0 != (time_t)-1 ) && ( t1 != (time_t)-1 ))
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{
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// To get t0 as GMT we convert to a struct tm with gmtime,
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// and then back again.
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//
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ptm = gmtime(&t0);
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if (ptm)
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{
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memcpy(&tm, ptm, sizeof(tm));
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t0 = mktime(&tm);
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if (t0 != (time_t)-1 )
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return (long)difftime(t1, t0) + (60 * 60 * 24 * 4);
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wxLogSysError(_("mktime() failed"));
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}
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else
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{
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wxLogSysError(_("gmtime() failed"));
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}
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}
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wxLogError(_("Failed to get the UTC system time."));
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return -1;
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}
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#if wxUSE_LONGLONG
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// Get local time as milliseconds since 00:00:00, Jan 1st 1970
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wxLongLong wxGetLocalTimeMillis()
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{
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wxLongLong val = 1000l;
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// If possible, use a function which avoids conversions from
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// broken-up time structures to milliseconds
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#if defined(__WXMSW__) && defined(__MWERKS__)
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// This should probably be the way all WXMSW compilers should do it
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// Go direct to the OS for time
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SYSTEMTIME thenst = { 1970, 1, 4, 1, 0, 0, 0, 0 }; // 00:00:00 Jan 1st 1970
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FILETIME thenft;
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SystemTimeToFileTime( &thenst, &thenft );
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wxLongLong then( thenft.dwHighDateTime, thenft.dwLowDateTime ); // time in 100 nanoseconds
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SYSTEMTIME nowst;
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GetLocalTime( &nowst );
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FILETIME nowft;
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SystemTimeToFileTime( &nowst, &nowft );
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wxLongLong now( nowft.dwHighDateTime, nowft.dwLowDateTime ); // time in 100 nanoseconds
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return ( now - then ) / 10000.0; // time from 00:00:00 Jan 1st 1970 to now in milliseconds
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#elif defined(HAVE_GETTIMEOFDAY)
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struct timeval tp;
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if ( wxGetTimeOfDay(&tp, (struct timezone *)NULL) != -1 )
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{
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val *= tp.tv_sec;
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return (val + (tp.tv_usec / 1000));
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}
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else
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{
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wxLogError(_("wxGetTimeOfDay failed."));
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return 0;
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}
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#elif defined(HAVE_FTIME)
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struct timeb tp;
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// ftime() is void and not int in some mingw32 headers, so don't
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// test the return code (well, it shouldn't fail anyhow...)
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(void)ftime(&tp);
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val *= tp.time;
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return (val + tp.millitm);
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#elif defined(__WXMAC__)
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static UInt64 gMilliAtStart = 0;
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Nanoseconds upTime = AbsoluteToNanoseconds( UpTime() );
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if ( gMilliAtStart == 0 )
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{
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time_t start = time(NULL);
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gMilliAtStart = ((UInt64) start) * 1000000L;
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gMilliAtStart -= upTime.lo / 1000 ;
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gMilliAtStart -= ( ( (UInt64) upTime.hi ) << 32 ) / (1000 * 1000);
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}
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UInt64 millival = gMilliAtStart;
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millival += upTime.lo / (1000 * 1000);
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millival += ( ( (UInt64) upTime.hi ) << 32 ) / (1000 * 1000);
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val = millival;
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return val;
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#else // no gettimeofday() nor ftime()
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// We use wxGetLocalTime() to get the seconds since
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// 00:00:00 Jan 1st 1970 and then whatever is available
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// to get millisecond resolution.
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//
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// NOTE that this might lead to a problem if the clocks
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// use different sources, so this approach should be
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// avoided where possible.
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val *= wxGetLocalTime();
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// GRG: This will go soon as all WIN32 seem to have ftime
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#if defined (__WIN32__)
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// If your platform/compiler needs to use two different functions
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// to get ms resolution, please do NOT just shut off these warnings,
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// drop me a line instead at <guille@iies.es>
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#warning "Possible clock skew bug in wxGetLocalTimeMillis()!"
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SYSTEMTIME st;
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::GetLocalTime(&st);
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val += st.wMilliseconds;
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#else // !Win32
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// If your platform/compiler does not support ms resolution please
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// do NOT just shut off these warnings, drop me a line instead at
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// <guille@iies.es>
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#if defined(__VISUALC__) || defined (__WATCOMC__)
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#pragma message("wxStopWatch will be up to second resolution!")
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#elif defined(__BORLANDC__)
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#pragma message "wxStopWatch will be up to second resolution!"
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#else
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#warning "wxStopWatch will be up to second resolution!"
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#endif // compiler
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#endif
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return val;
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#endif // time functions
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}
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#endif // wxUSE_LONGLONG
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