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 <yoshixool AT gmail.com> 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
This commit is contained in:
shyouhei 2009-01-21 02:13:46 +00:00
parent baac9b0351
commit 48df11da1c
3 changed files with 59 additions and 37 deletions

View file

@ -2975,24 +2975,36 @@ waitpid(rb_pid_t pid, int *stat_loc, int options)
#include <sys/timeb.h>
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;
FILETIME ft;
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;
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