// Purpose: Implementation of time-related functions.
// Author: Vadim Zeitlin
// Created: 2011-11-26
-// RCS-ID: $Id: wxhead.cpp,v 1.11 2010-04-22 12:44:51 zeitlin Exp $
// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#include "wx/time.h"
+#ifndef WX_PRECOMP
+ #ifdef __WINDOWS__
+ #include "wx/msw/wrapwin.h"
+ #endif
+ #include "wx/intl.h"
+ #include "wx/log.h"
+#endif
+
#ifndef WX_GMTOFF_IN_TM
// Define it for some systems which don't (always) use configure but are
// known to have tm_gmtoff field.
- #if defined(__WXPALMOS__) || defined(__DARWIN__)
+ #if defined(__DARWIN__)
#define WX_GMTOFF_IN_TM
#endif
#endif
+#if defined(__VISAGECPP__) && !defined(HAVE_FTIME)
+ #define HAVE_FTIME
+# if __IBMCPP__ >= 400
+ # define ftime(x) _ftime(x)
+# endif
+#endif
+
+#ifndef __WXWINCE__
+#include <time.h>
+#else
+#include "wx/msw/private.h"
+#include "wx/msw/wince/time.h"
+#endif
+
+
+#if !defined(__WXMAC__) && !defined(__WXWINCE__)
+ #include <sys/types.h> // for time_t
+#endif
+
+#if defined(HAVE_GETTIMEOFDAY)
+ #include <sys/time.h>
+ #include <unistd.h>
+#elif defined(HAVE_FTIME)
+ #include <sys/timeb.h>
+#endif
+
+#if defined(__DJGPP__) || defined(__WINE__)
+ #include <sys/timeb.h>
+ #include <values.h>
+#endif
+
+namespace
+{
+
+const int MILLISECONDS_PER_SECOND = 1000;
+const int MICROSECONDS_PER_MILLISECOND = 1000;
+const int MICROSECONDS_PER_SECOND = 1000*1000;
+
+} // anonymous namespace
+
// ============================================================================
// implementation
// ============================================================================
+// NB: VC8 safe time functions could/should be used for wxMSW as well probably
+#if defined(__WXWINCE__) && defined(__VISUALC8__)
+
+struct tm *wxLocaltime_r(const time_t *t, struct tm* tm)
+{
+ __time64_t t64 = *t;
+ return _localtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+struct tm *wxGmtime_r(const time_t* t, struct tm* tm)
+{
+ __time64_t t64 = *t;
+ return _gmtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+#else // !wxWinCE with VC8
+
+#if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__)
+static wxMutex timeLock;
+#endif
+
+#ifndef HAVE_LOCALTIME_R
+struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp)
+{
+#if wxUSE_THREADS && !defined(__WINDOWS__)
+ // No need to waste time with a mutex on windows since it's using
+ // thread local storage for localtime anyway.
+ wxMutexLocker locker(timeLock);
+#endif
+
+ // Borland CRT crashes when passed 0 ticks for some reason, see SF bug 1704438
+#ifdef __BORLANDC__
+ if ( !*ticks )
+ return NULL;
+#endif
+
+ const tm * const t = localtime(ticks);
+ if ( !t )
+ return NULL;
+
+ memcpy(temp, t, sizeof(struct tm));
+ return temp;
+}
+#endif // !HAVE_LOCALTIME_R
+
+#ifndef HAVE_GMTIME_R
+struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp)
+{
+#if wxUSE_THREADS && !defined(__WINDOWS__)
+ // No need to waste time with a mutex on windows since it's
+ // using thread local storage for gmtime anyway.
+ wxMutexLocker locker(timeLock);
+#endif
+
+#ifdef __BORLANDC__
+ if ( !*ticks )
+ return NULL;
+#endif
+
+ const tm * const t = gmtime(ticks);
+ if ( !t )
+ return NULL;
+
+ memcpy(temp, gmtime(ticks), sizeof(struct tm));
+ return temp;
+}
+#endif // !HAVE_GMTIME_R
+
+#endif // wxWinCE with VC8/other platforms
+
// returns the time zone in the C sense, i.e. the difference UTC - local
// (in seconds)
int wxGetTimeZone()
#else // VC++ < 8
return timezone;
#endif
-#elif defined(WX_TIMEZONE) // If WX_TIMEZONE was defined by configure, use it.
- return WX_TIMEZONE;
-#elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
- return _timezone;
-#elif defined(__MWERKS__)
- return 28800;
-#else // unknown platform -- assume it has timezone
- return timezone;
-#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM
+#else // Use some kind of time zone variable.
+ // In any case we must initialize the time zone before using it.
+ tzset();
+
+ #if defined(WX_TIMEZONE) // If WX_TIMEZONE was defined by configure, use it.
+ return WX_TIMEZONE;
+ #elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
+ return _timezone;
+ #else // unknown platform -- assume it has timezone
+ return timezone;
+ #endif // different time zone variables
+#endif // different ways to determine time zone
+}
+
+// Get local time as seconds since 00:00:00, Jan 1st 1970
+long wxGetLocalTime()
+{
+ 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()
+{
+ return (long)time(NULL);
+}
+
+#if wxUSE_LONGLONG
+
+wxLongLong wxGetUTCTimeUSec()
+{
+#if defined(__WINDOWS__)
+ FILETIME ft;
+ ::GetSystemTimeAsFileTime(&ft);
+
+ // FILETIME is in 100ns or 0.1us since 1601-01-01, transform to us since
+ // 1970-01-01.
+ wxLongLong t(ft.dwHighDateTime, ft.dwLowDateTime);
+ t /= 10;
+ t -= wxLL(11644473600000000); // Unix - Windows epochs difference in us.
+ return t;
+#else // non-MSW
+
+#ifdef HAVE_GETTIMEOFDAY
+ timeval tv;
+ if ( wxGetTimeOfDay(&tv) != -1 )
+ {
+ wxLongLong val(tv.tv_sec);
+ val *= MICROSECONDS_PER_SECOND;
+ val += tv.tv_usec;
+ return val;
+ }
+#endif // HAVE_GETTIMEOFDAY
+
+ // Fall back to lesser precision function.
+ return wxGetUTCTimeMillis()*MICROSECONDS_PER_MILLISECOND;
+#endif // MSW/!MSW
+}
+
+// Get local time as milliseconds since 00:00:00, Jan 1st 1970
+wxLongLong wxGetUTCTimeMillis()
+{
+ // If possible, use a function which avoids conversions from
+ // broken-up time structures to milliseconds
+#if defined(__WINDOWS__)
+ FILETIME ft;
+ ::GetSystemTimeAsFileTime(&ft);
+
+ // FILETIME is expressed in 100ns (or 0.1us) units since 1601-01-01,
+ // transform them to ms since 1970-01-01.
+ wxLongLong t(ft.dwHighDateTime, ft.dwLowDateTime);
+ t /= 10000;
+ t -= wxLL(11644473600000); // Unix - Windows epochs difference in ms.
+ return t;
+#else // !__WINDOWS__
+ wxLongLong val = MILLISECONDS_PER_SECOND;
+
+#if defined(HAVE_GETTIMEOFDAY)
+ struct timeval tp;
+ if ( wxGetTimeOfDay(&tp) != -1 )
+ {
+ val *= tp.tv_sec;
+ return (val + (tp.tv_usec / MICROSECONDS_PER_MILLISECOND));
+ }
+ 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);
+#else // no gettimeofday() nor ftime()
+ // 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
+
+ val *= wxGetUTCTime();
+ return val;
+#endif // time functions
+
+#endif // __WINDOWS__/!__WINDOWS__
+}
+
+wxLongLong wxGetLocalTimeMillis()
+{
+ return wxGetUTCTimeMillis() - wxGetTimeZone()*MILLISECONDS_PER_SECOND;
}
+
+#else // !wxUSE_LONGLONG
+
+double wxGetLocalTimeMillis(void)
+{
+ return (double(clock()) / double(CLOCKS_PER_SEC)) * 1000.0;
+}
+
+#endif // wxUSE_LONGLONG/!wxUSE_LONGLONG
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