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logs-show: add short-precise mode with us timestamps

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Also, always show us timestamps in verbose mode.

https://bugzilla.redhat.com/show_bug.cgi?id=991678
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2013-08-04 09:04:20 -04:00
parent c51cf05646
commit f02d836794
6 changed files with 66 additions and 15 deletions
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25
man/journalctl.xml
View File

@ -253,12 +253,11 @@
<varlistentry>
<term>
<option>short-monotonic</option>
<option>short-iso</option>
</term>
<listitem>
<para>is very similar
but shows monotonic
timestamps instead of
<para>is very similar,
but shows ISO 8601
wallclock timestamps.
</para>
</listitem>
@ -266,11 +265,25 @@
<varlistentry>
<term>
<option>short-iso</option>
<option>short-precise</option>
</term>
<listitem>
<para>is very similar,
but shows ISO 8601
but shows timestamps
with full microsecond
precision.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>short-monotonic</option>
</term>
<listitem>
<para>is very similar
but shows monotonic
timestamps instead of
wallclock timestamps.
</para>
</listitem>

5
src/journal/journalctl.c
View File

@ -134,8 +134,9 @@ static int help(void) {
" -n --lines[=INTEGER] Number of journal entries to show\n"
" --no-tail Show all lines, even in follow mode\n"
" -r --reverse Show the newest entries first\n"
" -o --output=STRING Change journal output mode (short, short-monotonic, short-iso\n"
" verbose, export, json, json-pretty, json-sse, cat)\n"
" -o --output=STRING Change journal output mode (short, short-iso,\n"
" short-precise, short-monotonic, verbose,\n"
" export, json, json-pretty, json-sse, cat)\n"
" -x --catalog Add message explanations where available\n"
" -l --full Do not ellipsize fields\n"
" -a --all Show all fields, including long and unprintable\n"

25
src/shared/logs-show.c
View File

@ -318,10 +318,21 @@ static int output_short(
}
t = (time_t) (x / USEC_PER_SEC);
if (mode == OUTPUT_SHORT_ISO)
switch(mode) {
case OUTPUT_SHORT_ISO:
r = strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", localtime_r(&t, &tm));
else
break;
case OUTPUT_SHORT_PRECISE:
r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm));
if (r > 0) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
".%06llu", x % USEC_PER_SEC);
}
break;
default:
r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm));
}
if (r <= 0) {
log_error("Failed to format time.");
@ -380,7 +391,7 @@ static int output_verbose(
size_t length;
_cleanup_free_ char *cursor = NULL;
uint64_t realtime;
char ts[FORMAT_TIMESTAMP_MAX];
char ts[FORMAT_TIMESTAMP_MAX + 7];
int r;
assert(f);
@ -402,7 +413,7 @@ static int output_verbose(
}
fprintf(f, "%s [%s]\n",
format_timestamp(ts, sizeof(ts), realtime),
format_timestamp_us(ts, sizeof(ts), realtime),
cursor);
JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
@ -849,8 +860,9 @@ static int (*output_funcs[_OUTPUT_MODE_MAX])(
OutputFlags flags) = {
[OUTPUT_SHORT] = output_short,
[OUTPUT_SHORT_MONOTONIC] = output_short,
[OUTPUT_SHORT_ISO] = output_short,
[OUTPUT_SHORT_PRECISE] = output_short,
[OUTPUT_SHORT_MONOTONIC] = output_short,
[OUTPUT_VERBOSE] = output_verbose,
[OUTPUT_EXPORT] = output_export,
[OUTPUT_JSON] = output_json,
@ -1131,8 +1143,9 @@ int show_journal_by_unit(
static const char *const output_mode_table[_OUTPUT_MODE_MAX] = {
[OUTPUT_SHORT] = "short",
[OUTPUT_SHORT_MONOTONIC] = "short-monotonic",
[OUTPUT_SHORT_ISO] = "short-iso",
[OUTPUT_SHORT_PRECISE] = "short-precise",
[OUTPUT_SHORT_MONOTONIC] = "short-monotonic",
[OUTPUT_VERBOSE] = "verbose",
[OUTPUT_EXPORT] = "export",
[OUTPUT_JSON] = "json",

3
src/shared/output-mode.h
View File

@ -23,8 +23,9 @@
typedef enum OutputMode {
OUTPUT_SHORT,
OUTPUT_SHORT_MONOTONIC,
OUTPUT_SHORT_ISO,
OUTPUT_SHORT_PRECISE,
OUTPUT_SHORT_MONOTONIC,
OUTPUT_VERBOSE,
OUTPUT_EXPORT,
OUTPUT_JSON,

22
src/shared/time-util.c
View File

@ -168,6 +168,28 @@ char *format_timestamp(char *buf, size_t l, usec_t t) {
return buf;
}
char *format_timestamp_us(char *buf, size_t l, usec_t t) {
struct tm tm;
time_t sec;
assert(buf);
assert(l > 0);
if (t <= 0)
return NULL;
sec = (time_t) (t / USEC_PER_SEC);
localtime_r(&sec, &tm);
if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S", &tm) <= 0)
return NULL;
snprintf(buf + strlen(buf), l - strlen(buf), ".%06llu", t % USEC_PER_SEC);
if (strftime(buf + strlen(buf), l - strlen(buf), " %Z", &tm) <= 0)
return NULL;
return buf;
}
char *format_timestamp_relative(char *buf, size_t l, usec_t t) {
usec_t n, d;

1
src/shared/time-util.h
View File

@ -73,6 +73,7 @@ usec_t timeval_load(const struct timeval *tv) _pure_;
struct timeval *timeval_store(struct timeval *tv, usec_t u);
char *format_timestamp(char *buf, size_t l, usec_t t);
char *format_timestamp_us(char *buf, size_t l, usec_t t);
char *format_timestamp_relative(char *buf, size_t l, usec_t t);
char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy);