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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2010-04-14 06:55:19 +0200 |
|---|---|---|
| committer | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2010-09-10 18:39:43 +1000 |
| commit | 96e9babe10af96c6561da220c224b1e94cbfd508 (patch) | |
| tree | 51a2c6ab13aad4b715fed1f501eeb2c6b26f5ed4 | |
| parent | b6a1a2ff65a5755d801654f7a41b4854082c96e1 (diff) | |
| download | busybox-w32-96e9babe10af96c6561da220c224b1e94cbfd508.tar.gz busybox-w32-96e9babe10af96c6561da220c224b1e94cbfd508.tar.bz2 busybox-w32-96e9babe10af96c6561da220c224b1e94cbfd508.zip | |
win32: add gettimeofday()
| -rw-r--r-- | win32/mingw.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/win32/mingw.c b/win32/mingw.c index 3611872ec..020e9c420 100644 --- a/win32/mingw.c +++ b/win32/mingw.c | |||
| @@ -15,3 +15,43 @@ int mkstemp(char *template) | |||
| 15 | return -1; | 15 | return -1; |
| 16 | return open(filename, O_RDWR | O_CREAT, 0600); | 16 | return open(filename, O_RDWR | O_CREAT, 0600); |
| 17 | } | 17 | } |
| 18 | |||
| 19 | /* | ||
| 20 | * This is like mktime, but without normalization of tm_wday and tm_yday. | ||
| 21 | */ | ||
| 22 | static time_t tm_to_time_t(const struct tm *tm) | ||
| 23 | { | ||
| 24 | static const int mdays[] = { | ||
| 25 | 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 | ||
| 26 | }; | ||
| 27 | int year = tm->tm_year - 70; | ||
| 28 | int month = tm->tm_mon; | ||
| 29 | int day = tm->tm_mday; | ||
| 30 | |||
| 31 | if (year < 0 || year > 129) /* algo only works for 1970-2099 */ | ||
| 32 | return -1; | ||
| 33 | if (month < 0 || month > 11) /* array bounds */ | ||
| 34 | return -1; | ||
| 35 | if (month < 2 || (year + 2) % 4) | ||
| 36 | day--; | ||
| 37 | return (year * 365 + (year + 1) / 4 + mdays[month] + day) * 24*60*60UL + | ||
| 38 | tm->tm_hour * 60*60 + tm->tm_min * 60 + tm->tm_sec; | ||
| 39 | } | ||
| 40 | |||
| 41 | int gettimeofday(struct timeval *tv, void *tz) | ||
| 42 | { | ||
| 43 | SYSTEMTIME st; | ||
| 44 | struct tm tm; | ||
| 45 | GetSystemTime(&st); | ||
| 46 | tm.tm_year = st.wYear-1900; | ||
| 47 | tm.tm_mon = st.wMonth-1; | ||
| 48 | tm.tm_mday = st.wDay; | ||
| 49 | tm.tm_hour = st.wHour; | ||
| 50 | tm.tm_min = st.wMinute; | ||
| 51 | tm.tm_sec = st.wSecond; | ||
| 52 | tv->tv_sec = tm_to_time_t(&tm); | ||
| 53 | if (tv->tv_sec < 0) | ||
| 54 | return -1; | ||
| 55 | tv->tv_usec = st.wMilliseconds*1000; | ||
| 56 | return 0; | ||
| 57 | } | ||