X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=src%2Fbasic%2Ftime-util.c;h=7fb3745d6c317f1dc0109f070d13c85d5388ed55;hb=2705eaf36d46539397571886ba6ccd0045ef3e9b;hp=ecca227c74bb718cb2b1fc872200ad23b1b7b626;hpb=1cfc78c91965df340cdde100ad6cb3ed50b28927;p=elogind.git
diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index ecca227c7..7fb3745d6 100644
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -19,14 +19,19 @@
along with systemd; If not, see .
***/
-#include
#include
-#include
#include
+#include
-#include "util.h"
-#include "time-util.h"
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "path-util.h"
+#include "string-util.h"
#include "strv.h"
+#include "time-util.h"
+#include "util.h"
usec_t now(clockid_t clock_id) {
struct timespec ts;
@@ -36,6 +41,17 @@ usec_t now(clockid_t clock_id) {
return timespec_load(&ts);
}
+/// UNNEEDED by elogind
+#if 0
+nsec_t now_nsec(clockid_t clock_id) {
+ struct timespec ts;
+
+ assert_se(clock_gettime(clock_id, &ts) == 0);
+
+ return timespec_load_nsec(&ts);
+}
+#endif // 0
+
dual_timestamp* dual_timestamp_get(dual_timestamp *ts) {
assert(ts);
@@ -67,6 +83,8 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) {
return ts;
}
+/// UNNEEDED by elogind
+#if 0
dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u) {
int64_t delta;
assert(ts);
@@ -88,6 +106,32 @@ dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u) {
return ts;
}
+dual_timestamp* dual_timestamp_from_boottime_or_monotonic(dual_timestamp *ts, usec_t u) {
+ int64_t delta;
+
+ if (u == USEC_INFINITY) {
+ ts->realtime = ts->monotonic = USEC_INFINITY;
+ return ts;
+ }
+ ts->realtime = now(CLOCK_REALTIME);
+ ts->monotonic = now(CLOCK_MONOTONIC);
+
+ 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;
+
+ return ts;
+}
+#endif // 0
+
usec_t timespec_load(const struct timespec *ts) {
assert(ts);
@@ -103,6 +147,18 @@ 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) {
+ assert(ts);
+
+ if (ts->tv_sec == (time_t) -1 &&
+ ts->tv_nsec == (long) -1)
+ return NSEC_INFINITY;
+
+ return
+ (nsec_t) ts->tv_sec * NSEC_PER_SEC +
+ (nsec_t) ts->tv_nsec;
+}
+
struct timespec *timespec_store(struct timespec *ts, usec_t u) {
assert(ts);
@@ -158,11 +214,8 @@ static char *format_timestamp_internal(char *buf, size_t l, usec_t t, bool utc)
return NULL;
sec = (time_t) (t / USEC_PER_SEC);
+ localtime_or_gmtime_r(&sec, &tm, utc);
- if (utc)
- gmtime_r(&sec, &tm);
- else
- localtime_r(&sec, &tm);
if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S %Z", &tm) <= 0)
return NULL;
@@ -191,10 +244,7 @@ static char *format_timestamp_internal_us(char *buf, size_t l, usec_t t, bool ut
return NULL;
sec = (time_t) (t / USEC_PER_SEC);
- if (utc)
- gmtime_r(&sec, &tm);
- else
- localtime_r(&sec, &tm);
+ localtime_or_gmtime_r(&sec, &tm, utc);
if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S", &tm) <= 0)
return NULL;
@@ -209,9 +259,12 @@ char *format_timestamp_us(char *buf, size_t l, usec_t t) {
return format_timestamp_internal_us(buf, l, t, false);
}
+/// UNNEEDED by elogind
+#if 0
char *format_timestamp_us_utc(char *buf, size_t l, usec_t t) {
return format_timestamp_internal_us(buf, l, t, true);
}
+#endif // 0
char *format_timestamp_relative(char *buf, size_t l, usec_t t) {
const char *s;
@@ -386,6 +439,8 @@ char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy) {
return buf;
}
+/// UNNEEDED by elogind
+#if 0
void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t) {
assert(f);
@@ -418,8 +473,6 @@ int dual_timestamp_deserialize(const char *value, dual_timestamp *t) {
return 0;
}
-/// UNNEEDED by elogind
-#if 0
int parse_timestamp(const char *t, usec_t *usec) {
static const struct {
const char *name;
@@ -442,9 +495,10 @@ int parse_timestamp(const char *t, usec_t *usec) {
};
const char *k;
+ const char *utc;
struct tm tm, copy;
time_t x;
- usec_t plus = 0, minus = 0, ret;
+ usec_t x_usec, plus = 0, minus = 0, ret;
int r, weekday = -1;
unsigned i;
@@ -469,28 +523,15 @@ int parse_timestamp(const char *t, usec_t *usec) {
assert(t);
assert(usec);
- x = time(NULL);
- assert_se(localtime_r(&x, &tm));
- tm.tm_isdst = -1;
-
- if (streq(t, "now"))
- goto finish;
-
- else if (streq(t, "today")) {
- tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
- goto finish;
+ if (t[0] == '@')
+ return parse_sec(t + 1, usec);
- } else if (streq(t, "yesterday")) {
- tm.tm_mday --;
- tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
- goto finish;
+ ret = now(CLOCK_REALTIME);
- } else if (streq(t, "tomorrow")) {
- tm.tm_mday ++;
- tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ if (streq(t, "now"))
goto finish;
- } else if (t[0] == '+') {
+ else if (t[0] == '+') {
r = parse_sec(t+1, &plus);
if (r < 0)
return r;
@@ -504,35 +545,51 @@ int parse_timestamp(const char *t, usec_t *usec) {
goto finish;
- } else if (t[0] == '@')
- return parse_sec(t + 1, usec);
-
- else if (endswith(t, " ago")) {
- _cleanup_free_ char *z;
+ } else if ((k = endswith(t, " ago"))) {
+ t = strndupa(t, k - t);
- z = strndup(t, strlen(t) - 4);
- if (!z)
- return -ENOMEM;
-
- r = parse_sec(z, &minus);
+ r = parse_sec(t, &minus);
if (r < 0)
return r;
goto finish;
- } else if (endswith(t, " left")) {
- _cleanup_free_ char *z;
- z = strndup(t, strlen(t) - 4);
- if (!z)
- return -ENOMEM;
+ } else if ((k = endswith(t, " left"))) {
+ t = strndupa(t, k - t);
- r = parse_sec(z, &plus);
+ r = parse_sec(t, &plus);
if (r < 0)
return r;
goto finish;
}
+ utc = endswith_no_case(t, " UTC");
+ if (utc)
+ t = strndupa(t, utc - t);
+
+ x = ret / USEC_PER_SEC;
+ x_usec = 0;
+
+ assert_se(localtime_or_gmtime_r(&x, &tm, utc));
+ tm.tm_isdst = -1;
+
+ if (streq(t, "today")) {
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto from_tm;
+
+ } else if (streq(t, "yesterday")) {
+ tm.tm_mday --;
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto from_tm;
+
+ } else if (streq(t, "tomorrow")) {
+ tm.tm_mday ++;
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto from_tm;
+ }
+
+
for (i = 0; i < ELEMENTSOF(day_nr); i++) {
size_t skip;
@@ -550,66 +607,106 @@ int parse_timestamp(const char *t, usec_t *usec) {
copy = tm;
k = strptime(t, "%y-%m-%d %H:%M:%S", &tm);
- if (k && *k == 0)
- goto finish;
+ if (k) {
+ if (*k == '.')
+ goto parse_usec;
+ else if (*k == 0)
+ goto from_tm;
+ }
tm = copy;
k = strptime(t, "%Y-%m-%d %H:%M:%S", &tm);
- if (k && *k == 0)
- goto finish;
+ if (k) {
+ if (*k == '.')
+ goto parse_usec;
+ else if (*k == 0)
+ goto from_tm;
+ }
tm = copy;
k = strptime(t, "%y-%m-%d %H:%M", &tm);
if (k && *k == 0) {
tm.tm_sec = 0;
- goto finish;
+ goto from_tm;
}
tm = copy;
k = strptime(t, "%Y-%m-%d %H:%M", &tm);
if (k && *k == 0) {
tm.tm_sec = 0;
- goto finish;
+ goto from_tm;
}
tm = copy;
k = strptime(t, "%y-%m-%d", &tm);
if (k && *k == 0) {
tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
- goto finish;
+ goto from_tm;
}
tm = copy;
k = strptime(t, "%Y-%m-%d", &tm);
if (k && *k == 0) {
tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
- goto finish;
+ goto from_tm;
}
tm = copy;
k = strptime(t, "%H:%M:%S", &tm);
- if (k && *k == 0)
- goto finish;
+ if (k) {
+ if (*k == '.')
+ goto parse_usec;
+ else if (*k == 0)
+ goto from_tm;
+ }
tm = copy;
k = strptime(t, "%H:%M", &tm);
if (k && *k == 0) {
tm.tm_sec = 0;
- goto finish;
+ goto from_tm;
}
return -EINVAL;
-finish:
- x = mktime(&tm);
+parse_usec:
+ {
+ char *end;
+ unsigned long long val;
+ size_t l;
+
+ k++;
+ if (*k < '0' || *k > '9')
+ return -EINVAL;
+
+ /* base 10 instead of base 0, .09 is not base 8 */
+ errno = 0;
+ val = strtoull(k, &end, 10);
+ if (*end || errno)
+ return -EINVAL;
+
+ l = end-k;
+
+ /* val has l digits, make them 6 */
+ for (; l < 6; l++)
+ val *= 10;
+ for (; l > 6; l--)
+ val /= 10;
+
+ x_usec = val;
+ }
+
+from_tm:
+ x = mktime_or_timegm(&tm, utc);
if (x == (time_t) -1)
return -EINVAL;
if (weekday >= 0 && tm.tm_wday != weekday)
return -EINVAL;
- ret = (usec_t) x * USEC_PER_SEC;
+ ret = (usec_t) x * USEC_PER_SEC + x_usec;
+finish:
ret += plus;
if (ret > minus)
ret -= minus;
@@ -622,7 +719,8 @@ finish:
}
#endif // 0
-int parse_sec(const char *t, usec_t *usec) {
+int parse_time(const char *t, usec_t *usec, usec_t default_unit) {
+
static const struct {
const char *suffix;
usec_t usec;
@@ -636,6 +734,7 @@ int parse_sec(const char *t, usec_t *usec) {
{ "min", USEC_PER_MINUTE },
{ "months", USEC_PER_MONTH },
{ "month", USEC_PER_MONTH },
+ { "M", USEC_PER_MONTH },
{ "msec", USEC_PER_MSEC },
{ "ms", USEC_PER_MSEC },
{ "m", USEC_PER_MINUTE },
@@ -654,7 +753,6 @@ int parse_sec(const char *t, usec_t *usec) {
{ "y", USEC_PER_YEAR },
{ "usec", 1ULL },
{ "us", 1ULL },
- { "", USEC_PER_SEC }, /* default is sec */
};
const char *p, *s;
@@ -663,6 +761,7 @@ int parse_sec(const char *t, usec_t *usec) {
assert(t);
assert(usec);
+ assert(default_unit > 0);
p = t;
@@ -681,6 +780,7 @@ int parse_sec(const char *t, usec_t *usec) {
long long l, z = 0;
char *e;
unsigned i, n = 0;
+ usec_t multiplier, k;
p += strspn(p, WHITESPACE);
@@ -723,21 +823,24 @@ int parse_sec(const char *t, usec_t *usec) {
for (i = 0; i < ELEMENTSOF(table); i++)
if (startswith(e, table[i].suffix)) {
- usec_t k = (usec_t) z * table[i].usec;
-
- for (; n > 0; n--)
- k /= 10;
-
- r += (usec_t) l * table[i].usec + k;
+ multiplier = table[i].usec;
p = e + strlen(table[i].suffix);
-
- something = true;
break;
}
- if (i >= ELEMENTSOF(table))
- return -EINVAL;
+ if (i >= ELEMENTSOF(table)) {
+ multiplier = default_unit;
+ p = e;
+ }
+
+ something = true;
+
+ k = (usec_t) z * multiplier;
+ for (; n > 0; n--)
+ k /= 10;
+
+ r += (usec_t) l * multiplier + k;
}
*usec = r;
@@ -745,6 +848,12 @@ int parse_sec(const char *t, usec_t *usec) {
return 0;
}
+int parse_sec(const char *t, usec_t *usec) {
+ return parse_time(t, usec, USEC_PER_SEC);
+}
+
+/// UNNEEDED by elogind
+#if 0
int parse_nsec(const char *t, nsec_t *nsec) {
static const struct {
const char *suffix;
@@ -870,8 +979,6 @@ int parse_nsec(const char *t, nsec_t *nsec) {
return 0;
}
-/// UNNEEDED by elogind
-#if 0
bool ntp_synced(void) {
struct timex txc = {};
@@ -953,7 +1060,10 @@ bool timezone_is_valid(const char *name) {
const char *p, *t;
struct stat st;
- if (!name || *name == 0 || *name == '/')
+ if (isempty(name))
+ return false;
+
+ if (name[0] == '/')
return false;
for (p = name; *p; p++) {
@@ -985,7 +1095,6 @@ bool timezone_is_valid(const char *name) {
return true;
}
-#endif // 0
clockid_t clock_boottime_or_monotonic(void) {
static clockid_t clock = -1;
@@ -1004,3 +1113,56 @@ clockid_t clock_boottime_or_monotonic(void) {
return clock;
}
+
+int get_timezone(char **tz) {
+ _cleanup_free_ char *t = NULL;
+ const char *e;
+ char *z;
+ int r;
+
+ r = readlink_malloc("/etc/localtime", &t);
+ if (r < 0)
+ return r; /* returns EINVAL if not a symlink */
+
+ e = path_startswith(t, "/usr/share/zoneinfo/");
+ if (!e)
+ e = path_startswith(t, "../usr/share/zoneinfo/");
+ if (!e)
+ return -EINVAL;
+
+ if (!timezone_is_valid(e))
+ return -EINVAL;
+
+ z = strdup(e);
+ if (!z)
+ return -ENOMEM;
+
+ *tz = z;
+ return 0;
+}
+
+time_t mktime_or_timegm(struct tm *tm, bool utc) {
+ return utc ? timegm(tm) : mktime(tm);
+}
+#endif // 0
+
+struct tm *localtime_or_gmtime_r(const time_t *t, struct tm *tm, bool utc) {
+ return utc ? gmtime_r(t, tm) : localtime_r(t, tm);
+}
+
+/// UNNEEDED by elogind
+#if 0
+unsigned long usec_to_jiffies(usec_t u) {
+ static thread_local unsigned long hz = 0;
+ long r;
+
+ if (hz == 0) {
+ r = sysconf(_SC_CLK_TCK);
+
+ assert(r > 0);
+ hz = (unsigned long) r;
+ }
+
+ return DIV_ROUND_UP(u , USEC_PER_SEC / hz);
+}
+#endif // 0