Alexander Belopolsky | 6fc4ade | 2010-08-05 17:34:27 +0000 | [diff] [blame] | 1 | #include "Python.h" |
| 2 | |
| 3 | #ifdef __APPLE__ |
| 4 | #if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_FTIME) |
| 5 | /* |
| 6 | * _PyTime_gettimeofday falls back to ftime when getttimeofday fails because the latter |
| 7 | * might fail on some platforms. This fallback is unwanted on MacOSX because |
| 8 | * that makes it impossible to use a binary build on OSX 10.4 on earlier |
| 9 | * releases of the OS. Therefore claim we don't support ftime. |
| 10 | */ |
| 11 | # undef HAVE_FTIME |
| 12 | #endif |
| 13 | #endif |
| 14 | |
| 15 | #ifdef HAVE_FTIME |
| 16 | #include <sys/timeb.h> |
| 17 | #if !defined(MS_WINDOWS) && !defined(PYOS_OS2) |
| 18 | extern int ftime(struct timeb *); |
| 19 | #endif /* MS_WINDOWS */ |
| 20 | #endif /* HAVE_FTIME */ |
| 21 | |
| 22 | void |
| 23 | _PyTime_gettimeofday(_PyTime_timeval *tp) |
| 24 | { |
| 25 | /* There are three ways to get the time: |
| 26 | (1) gettimeofday() -- resolution in microseconds |
| 27 | (2) ftime() -- resolution in milliseconds |
| 28 | (3) time() -- resolution in seconds |
| 29 | In all cases the return value in a timeval struct. |
| 30 | Since on some systems (e.g. SCO ODT 3.0) gettimeofday() may |
| 31 | fail, so we fall back on ftime() or time(). |
| 32 | Note: clock resolution does not imply clock accuracy! */ |
| 33 | #ifdef HAVE_GETTIMEOFDAY |
| 34 | #ifdef GETTIMEOFDAY_NO_TZ |
| 35 | if (gettimeofday(tp) == 0) |
| 36 | return; |
| 37 | #else /* !GETTIMEOFDAY_NO_TZ */ |
| 38 | if (gettimeofday(tp, (struct timezone *)NULL) == 0) |
| 39 | return; |
| 40 | #endif /* !GETTIMEOFDAY_NO_TZ */ |
| 41 | #endif /* !HAVE_GETTIMEOFDAY */ |
| 42 | #if defined(HAVE_FTIME) |
| 43 | { |
| 44 | struct timeb t; |
| 45 | ftime(&t); |
| 46 | tp->tv_sec = t.time; |
| 47 | tp->tv_usec = t.millitm * 1000; |
| 48 | } |
| 49 | #else /* !HAVE_FTIME */ |
| 50 | tp->tv_sec = time(NULL); |
| 51 | tp->tv_usec = 0; |
| 52 | #endif /* !HAVE_FTIME */ |
| 53 | return; |
| 54 | } |
| 55 | |
| 56 | void |
| 57 | _PyTime_Init() |
| 58 | { |
| 59 | /* Do nothing. Needed to force linking. */ |
| 60 | } |