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libbb: introduce and use xsettimeofday()

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function                                             old     new   delta
xsettimeofday                                          -      25     +25
rdate_main                                           274     260     -14
step_time                                            348     331     -17
set_kernel_timezone_and_clock                        119     102     -17
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(add/remove: 1/0 grow/shrink: 0/3 up/down: 25/-48)            Total: -23 bytes
   text	   data	    bss	    dec	    hex	filename
1020753	    559	   5052	1026364	  fa93c	busybox_old
1020708	    559	   5052	1026319	  fa90f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2020-12-16 21:36:36 +01:00
parent d3c36882dc
commit eb0c2e218c
6 changed files with 26 additions and 22 deletions
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6
util-linux/hwclock.c
View File

@ -184,10 +184,8 @@ static void set_kernel_timezone_and_clock(int utc, const struct timeval *hctosys
/*tz.tz_dsttime = 0; already is */
set_kernel_tz(&tz); /* MIGHT warp_clock() if 1st call since boot */
if (hctosys) { /* it's --hctosys: set time too */
if (settimeofday(hctosys, NULL))
bb_simple_perror_msg_and_die("settimeofday");
}
if (hctosys) /* it's --hctosys: set time too */
xsettimeofday(hctosys);
}
static void to_sys_clock(const char **pp_rtcname, int utc)

7
util-linux/rdate.c
View File

@ -96,11 +96,10 @@ int rdate_main(int argc UNUSED_PARAM, char **argv)
if (time(NULL) == remote_time)
bb_simple_error_msg("current time matches remote time");
else {
struct timespec ts;
struct timeval ts;
ts.tv_sec = remote_time;
ts.tv_nsec = 0;
if (clock_settime(CLOCK_REALTIME, &ts) < 0)
bb_simple_perror_msg_and_die("can't set time of day");
ts.tv_usec = 0;
xsettimeofday(&ts);
}
}