From 48df11da1c6a53a34881649d49fa1bfaf9abdb61 Mon Sep 17 00:00:00 2001 From: shyouhei Date: Wed, 21 Jan 2009 02:13:46 +0000 Subject: merge revision(s) 19025,19050,19064,19482: * win32/win32.c (gettimeofday): shouldn't use mktime(2) because it's buggy about handling summer time. reported by Yoshikawa at [ruby-dev:36071] * win32/win32.c (gettimeofday): calc tv_sec and tv_usec from system time by myself. [ruby-dev:36084] * win32/win32.c (gettimeofday): tv_usec is usec, not msec. [ruby-dev:36094] of the Gregorian calendar. * win32/win32.c (filetime_to_timeval): new function, split from gettimeofday(). * win32/win32.c (gettimeofday): use above function. * win32/win32.c (filetime_to_unixtime): ditto. [ruby-dev:36135] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@21705 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- win32/win32.c | 65 ++++++++++++++++++++++++++++------------------------------- 1 file changed, 31 insertions(+), 34 deletions(-) (limited to 'win32') diff --git a/win32/win32.c b/win32/win32.c index 6f29a15f97..d128713a21 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -2975,24 +2975,36 @@ waitpid(rb_pid_t pid, int *stat_loc, int options) #include +static int +filetime_to_timeval(const FILETIME* ft, struct timeval *tv) +{ + ULARGE_INTEGER tmp; + unsigned LONG_LONG lt; + + tmp.LowPart = ft->dwLowDateTime; + tmp.HighPart = ft->dwHighDateTime; + lt = tmp.QuadPart; + + /* lt is now 100-nanosec intervals since 1601/01/01 00:00:00 UTC, + convert it into UNIX time (since 1970/01/01 00:00:00 UTC). + the first leap second is at 1972/06/30, so we doesn't need to think + about it. */ + lt /= 10; /* to usec */ + lt -= (LONG_LONG)((1970-1601)*365.2425) * 24 * 60 * 60 * 1000 * 1000; + + tv->tv_sec = lt / (1000 * 1000); + tv->tv_usec = lt % (1000 * 1000); + + return tv->tv_sec > 0 ? 0 : -1; +} + int _cdecl gettimeofday(struct timeval *tv, struct timezone *tz) { - SYSTEMTIME st; - time_t t; - struct tm tm; - - GetLocalTime(&st); - tm.tm_sec = st.wSecond; - tm.tm_min = st.wMinute; - tm.tm_hour = st.wHour; - tm.tm_mday = st.wDay; - tm.tm_mon = st.wMonth - 1; - tm.tm_year = st.wYear - 1900; - tm.tm_isdst = -1; - t = mktime(&tm); - tv->tv_sec = t; - tv->tv_usec = st.wMilliseconds * 1000; + FILETIME ft; + + GetSystemTimeAsFileTime(&ft); + filetime_to_timeval(&ft, tv); return 0; } @@ -3267,27 +3279,12 @@ isUNCRoot(const char *path) static time_t filetime_to_unixtime(const FILETIME *ft) { - FILETIME loc; - SYSTEMTIME st; - struct tm tm; - time_t t; + struct timeval tv; - if (!FileTimeToLocalFileTime(ft, &loc)) { + if (filetime_to_timeval(ft, &tv) == (time_t)-1) return 0; - } - if (!FileTimeToSystemTime(&loc, &st)) { - return 0; - } - memset(&tm, 0, sizeof(tm)); - 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; - tm.tm_isdst = -1; - t = mktime(&tm); - return t == -1 ? 0 : t; + else + return tv.tv_sec; } static unsigned -- cgit v1.2.3