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libbb: introduce and use xgettimeofday(), do not truncate 64-bit time_t in shells

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function                                             old     new   delta
xgettimeofday                                          -      11     +11
get_local_var_value                                  280     281      +1
svlogd_main                                         1323    1322      -1
change_epoch                                          67      66      -1
timestamp_and_log                                    461     458      -3
hwclock_main                                         301     298      -3
fmt_time_bernstein_25                                135     132      -3
step_time                                            331     326      -5
script_main                                         1207    1202      -5
machtime                                              34      28      -6
curtime                                               61      54      -7
ts_main                                              423     415      -8
nmeter_main                                          761     751     -10
gettime1900d                                          67      46     -21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/12 up/down: 12/-73)           Total: -61 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2020-12-30 23:48:01 +01:00
parent 89a55972fd
commit 3c13da3dab
16 changed files with 46 additions and 34 deletions
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8
procps/nmeter.c
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@@ -952,11 +952,11 @@ int nmeter_main(int argc UNUSED_PARAM, char **argv)
reset_outbuf();
if (G.delta >= 0) {
gettimeofday(&G.tv, NULL);
xgettimeofday(&G.tv);
usleep(G.delta > 1000000 ? 1000000 : G.delta - G.tv.tv_usec % G.deltanz);
}
gettimeofday(&G.start, NULL);
xgettimeofday(&G.start);
G.tv = G.start;
while (1) {
collect_info(first);
@@ -971,7 +971,7 @@ int nmeter_main(int argc UNUSED_PARAM, char **argv)
if (G.delta >= 0) {
int rem;
// can be commented out, will sacrifice sleep time precision a bit
gettimeofday(&G.tv, NULL);
xgettimeofday(&G.tv);
if (need_seconds)
rem = G.delta - ((ullong)G.tv.tv_sec*1000000 + G.tv.tv_usec) % G.deltanz;
else
@@ -983,7 +983,7 @@ int nmeter_main(int argc UNUSED_PARAM, char **argv)
}
usleep(rem);
}
gettimeofday(&G.tv, NULL);
xgettimeofday(&G.tv);
}
/*return 0;*/