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-rw-r--r--src/basic/time-util.c106
1 files changed, 48 insertions, 58 deletions
diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index bfc7cf870c..510f018d9b 100644
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -42,10 +40,32 @@
#include "strv.h"
#include "time-util.h"
+static nsec_t timespec_load_nsec(const struct timespec *ts);
+
+static clockid_t map_clock_id(clockid_t c) {
+
+ /* Some more exotic archs (s390, ppc, …) lack the "ALARM" flavour of the clocks. Thus, clock_gettime() will
+ * fail for them. Since they are essentially the same as their non-ALARM pendants (their only difference is
+ * when timers are set on them), let's just map them accordingly. This way, we can get the correct time even on
+ * those archs. */
+
+ switch (c) {
+
+ case CLOCK_BOOTTIME_ALARM:
+ return CLOCK_BOOTTIME;
+
+ case CLOCK_REALTIME_ALARM:
+ return CLOCK_REALTIME;
+
+ default:
+ return c;
+ }
+}
+
usec_t now(clockid_t clock_id) {
struct timespec ts;
- assert_se(clock_gettime(clock_id, &ts) == 0);
+ assert_se(clock_gettime(map_clock_id(clock_id), &ts) == 0);
return timespec_load(&ts);
}
@@ -53,7 +73,7 @@ usec_t now(clockid_t clock_id) {
nsec_t now_nsec(clockid_t clock_id) {
struct timespec ts;
- assert_se(clock_gettime(clock_id, &ts) == 0);
+ assert_se(clock_gettime(map_clock_id(clock_id), &ts) == 0);
return timespec_load_nsec(&ts);
}
@@ -79,12 +99,7 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) {
ts->realtime = u;
delta = (int64_t) now(CLOCK_REALTIME) - (int64_t) u;
- ts->monotonic = now(CLOCK_MONOTONIC);
-
- if ((int64_t) ts->monotonic > delta)
- ts->monotonic -= delta;
- else
- ts->monotonic = 0;
+ ts->monotonic = usec_sub(now(CLOCK_MONOTONIC), delta);
return ts;
}
@@ -100,12 +115,7 @@ dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u) {
ts->monotonic = u;
delta = (int64_t) now(CLOCK_MONOTONIC) - (int64_t) u;
-
- ts->realtime = now(CLOCK_REALTIME);
- if ((int64_t) ts->realtime > delta)
- ts->realtime -= delta;
- else
- ts->realtime = 0;
+ ts->realtime = usec_sub(now(CLOCK_REALTIME), delta);
return ts;
}
@@ -117,25 +127,15 @@ dual_timestamp* dual_timestamp_from_boottime_or_monotonic(dual_timestamp *ts, us
ts->realtime = ts->monotonic = USEC_INFINITY;
return ts;
}
- ts->realtime = now(CLOCK_REALTIME);
- ts->monotonic = now(CLOCK_MONOTONIC);
+ dual_timestamp_get(ts);
delta = (int64_t) now(clock_boottime_or_monotonic()) - (int64_t) u;
-
- if ((int64_t) ts->realtime > delta)
- ts->realtime -= delta;
- else
- ts->realtime = 0;
-
- if ((int64_t) ts->monotonic > delta)
- ts->monotonic -= delta;
- else
- ts->monotonic = 0;
+ ts->realtime = usec_sub(ts->realtime, delta);
+ ts->monotonic = usec_sub(ts->monotonic, delta);
return ts;
}
-
usec_t timespec_load(const struct timespec *ts) {
assert(ts);
@@ -151,7 +151,7 @@ usec_t timespec_load(const struct timespec *ts) {
(usec_t) ts->tv_nsec / NSEC_PER_USEC;
}
-nsec_t timespec_load_nsec(const struct timespec *ts) {
+static nsec_t timespec_load_nsec(const struct timespec *ts) {
assert(ts);
if (ts->tv_sec == (time_t) -1 &&
@@ -207,9 +207,11 @@ struct timeval *timeval_store(struct timeval *tv, usec_t u) {
return tv;
}
-static char *format_timestamp_internal(char *buf, size_t l, usec_t t, bool utc) {
+static char *format_timestamp_internal(char *buf, size_t l, usec_t t,
+ bool utc, bool us) {
struct tm tm;
time_t sec;
+ int k;
assert(buf);
assert(l > 0);
@@ -220,48 +222,36 @@ static char *format_timestamp_internal(char *buf, size_t l, usec_t t, bool utc)
sec = (time_t) (t / USEC_PER_SEC);
localtime_or_gmtime_r(&sec, &tm, utc);
- if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S %Z", &tm) <= 0)
+ if (us)
+ k = strftime(buf, l, "%a %Y-%m-%d %H:%M:%S", &tm);
+ else
+ k = strftime(buf, l, "%a %Y-%m-%d %H:%M:%S %Z", &tm);
+
+ if (k <= 0)
return NULL;
+ if (us) {
+ snprintf(buf + strlen(buf), l - strlen(buf), ".%06llu", (unsigned long long) (t % USEC_PER_SEC));
+ if (strftime(buf + strlen(buf), l - strlen(buf), " %Z", &tm) <= 0)
+ return NULL;
+ }
return buf;
}
char *format_timestamp(char *buf, size_t l, usec_t t) {
- return format_timestamp_internal(buf, l, t, false);
+ return format_timestamp_internal(buf, l, t, false, false);
}
char *format_timestamp_utc(char *buf, size_t l, usec_t t) {
- return format_timestamp_internal(buf, l, t, true);
-}
-
-static char *format_timestamp_internal_us(char *buf, size_t l, usec_t t, bool utc) {
- struct tm tm;
- time_t sec;
-
- assert(buf);
- assert(l > 0);
-
- if (t <= 0 || t == USEC_INFINITY)
- return NULL;
-
- sec = (time_t) (t / USEC_PER_SEC);
- localtime_or_gmtime_r(&sec, &tm, utc);
-
- if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S", &tm) <= 0)
- return NULL;
- snprintf(buf + strlen(buf), l - strlen(buf), ".%06llu", (unsigned long long) (t % USEC_PER_SEC));
- if (strftime(buf + strlen(buf), l - strlen(buf), " %Z", &tm) <= 0)
- return NULL;
-
- return buf;
+ return format_timestamp_internal(buf, l, t, true, false);
}
char *format_timestamp_us(char *buf, size_t l, usec_t t) {
- return format_timestamp_internal_us(buf, l, t, false);
+ return format_timestamp_internal(buf, l, t, false, true);
}
char *format_timestamp_us_utc(char *buf, size_t l, usec_t t) {
- return format_timestamp_internal_us(buf, l, t, true);
+ return format_timestamp_internal(buf, l, t, true, true);
}
char *format_timestamp_relative(char *buf, size_t l, usec_t t) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-11 09:26:50 +0000