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1///////////////////////////////////////////////////////////////////////////////
2// Name: wx/time.h
3// Purpose: Miscellaneous time-related functions.
4// Author: Vadim Zeitlin
5// Created: 2011-11-26
6// RCS-ID: $Id: wxhead.h,v 1.12 2010-04-22 12:44:51 zeitlin Exp $
7// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
8// Licence: wxWindows licence
9///////////////////////////////////////////////////////////////////////////////
10
11#ifndef _WX_TIME_H_
12#define _WX_TIME_H_
13
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14#include "wx/longlong.h"
15
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16// Returns the difference between UTC and local time in seconds.
17WXDLLIMPEXP_BASE int wxGetTimeZone();
18
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19// Get number of seconds since local time 00:00:00 Jan 1st 1970.
20extern long WXDLLIMPEXP_BASE wxGetLocalTime();
21
22// Get number of seconds since GMT 00:00:00, Jan 1st 1970.
23extern long WXDLLIMPEXP_BASE wxGetUTCTime();
24
25#if wxUSE_LONGLONG
26 typedef wxLongLong wxMilliClock_t;
27 inline long wxMilliClockToLong(wxLongLong ll) { return ll.ToLong(); }
28#else
29 typedef double wxMilliClock_t;
30 inline long wxMilliClockToLong(double d) { return wx_truncate_cast(long, d); }
31#endif // wxUSE_LONGLONG
32
33// Get number of milliseconds since local time 00:00:00 Jan 1st 1970
34extern wxMilliClock_t WXDLLIMPEXP_BASE wxGetLocalTimeMillis();
35
36#if wxUSE_LONGLONG
37
38// Get the number of milliseconds or microseconds since the Epoch.
39wxLongLong WXDLLIMPEXP_BASE wxGetUTCTimeMillis();
40wxLongLong WXDLLIMPEXP_BASE wxGetUTCTimeUSec();
41
42#endif // wxUSE_LONGLONG
43
44#define wxGetCurrentTime() wxGetLocalTime()
45
46// on some really old systems gettimeofday() doesn't have the second argument,
47// define wxGetTimeOfDay() to hide this difference
48#ifdef HAVE_GETTIMEOFDAY
49 #ifdef WX_GETTIMEOFDAY_NO_TZ
50 #define wxGetTimeOfDay(tv) gettimeofday(tv)
51 #else
52 #define wxGetTimeOfDay(tv) gettimeofday((tv), NULL)
53 #endif
54#endif // HAVE_GETTIMEOFDAY
55
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56/* Two wrapper functions for thread safety */
57#ifdef HAVE_LOCALTIME_R
58#define wxLocaltime_r localtime_r
59#else
60WXDLLIMPEXP_BASE struct tm *wxLocaltime_r(const time_t*, struct tm*);
61#if wxUSE_THREADS && !defined(__WINDOWS__) && !defined(__WATCOMC__)
62 // On Windows, localtime _is_ threadsafe!
63#warning using pseudo thread-safe wrapper for localtime to emulate localtime_r
64#endif
65#endif
66
67#ifdef HAVE_GMTIME_R
68#define wxGmtime_r gmtime_r
69#else
70WXDLLIMPEXP_BASE struct tm *wxGmtime_r(const time_t*, struct tm*);
71#if wxUSE_THREADS && !defined(__WINDOWS__) && !defined(__WATCOMC__)
72 // On Windows, gmtime _is_ threadsafe!
73#warning using pseudo thread-safe wrapper for gmtime to emulate gmtime_r
74#endif
75#endif
76
59068d79 77#endif // _WX_TIME_H_