Signed-off-by: Nguyễn Thái Ngọc Duy <[email protected]>
---
win32/mingw.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/win32/mingw.c b/win32/mingw.c
index 3611872..020e9c4 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -15,3 +15,43 @@ int mkstemp(char *template)
return -1;
return open(filename, O_RDWR | O_CREAT, 0600);
}
+
+/*
+ * This is like mktime, but without normalization of tm_wday and tm_yday.
+ */
+static time_t tm_to_time_t(const struct tm *tm)
+{
+ static const int mdays[] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
+ };
+ int year = tm->tm_year - 70;
+ int month = tm->tm_mon;
+ int day = tm->tm_mday;
+
+ if (year < 0 || year > 129) /* algo only works for 1970-2099 */
+ return -1;
+ if (month < 0 || month > 11) /* array bounds */
+ return -1;
+ if (month < 2 || (year + 2) % 4)
+ day--;
+ return (year * 365 + (year + 1) / 4 + mdays[month] + day) * 24*60*60UL +
+ tm->tm_hour * 60*60 + tm->tm_min * 60 + tm->tm_sec;
+}
+
+int gettimeofday(struct timeval *tv, void *tz)
+{
+ SYSTEMTIME st;
+ struct tm tm;
+ GetSystemTime(&st);
+ tm.tm_year = st.wYear-1900;
+ tm.tm_mon = st.wMonth-1;
+ tm.tm_mday = st.wDay;
+ tm.tm_hour = st.wHour;
+ tm.tm_min = st.wMinute;
+ tm.tm_sec = st.wSecond;
+ tv->tv_sec = tm_to_time_t(&tm);
+ if (tv->tv_sec < 0)
+ return -1;
+ tv->tv_usec = st.wMilliseconds*1000;
+ return 0;
+}
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