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shared/logs-show: add new --output= format "short-delta"

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This new output formatting option is similar to "short-monotonic" but
also shows the time delta between two messages.

This fixes #24641.
This commit is contained in:
Daniel Braunwarth 2022-09-22 18:35:19 +02:00
parent 275e6be052
commit 893bcd3d07
12 changed files with 109 additions and 24 deletions
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4
NEWS
View File

@ -165,6 +165,10 @@ CHANGES WITH 252 in spe:
* openssl is the default crypto backend for systemd-resolved. (gnutls
is still supported.)
* journalctl -o (and similar commands) now understands a new output mode
"short-delta". It is similar to "short-monotonic" but also shows the
time delta between two messages.
Experimental features:
* BPF programs can now be compiled with bpf-gcc.

7
man/journalctl.xml
View File

@ -419,6 +419,13 @@
timestamps.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>short-delta</option></term>
<listitem><para>as for <option>short-monotonic</option> but includes the time difference
to the previous entry.
Maybe unreliable time differences are marked by a <literal>*</literal>.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>short-unix</option></term>
<listitem><para>is very similar, but shows seconds passed since January 1st 1970 UTC instead of

2
shell-completion/zsh/_sd_outputmodes
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@ -2,5 +2,5 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
local -a _output_opts
_output_opts=(short short-full short-iso short-iso-precise short-precise short-monotonic short-unix verbose export json json-pretty json-sse json-seq cat with-unit)
_output_opts=(short short-full short-iso short-iso-precise short-precise short-monotonic short-unix short-delta verbose export json json-pretty json-sse json-seq cat with-unit)
_describe -t output 'output mode' _output_opts || compadd "$@"

4
src/journal-remote/journal-gatewayd.c
View File

@ -148,6 +148,8 @@ static ssize_t request_reader_entries(
size_t max) {
RequestMeta *m = ASSERT_PTR(cls);
dual_timestamp previous_ts = DUAL_TIMESTAMP_NULL;
sd_id128_t previous_boot_id = SD_ID128_NULL;
int r;
size_t n, k;
@ -222,7 +224,7 @@ static ssize_t request_reader_entries(
}
r = show_journal_entry(m->tmp, m->journal, m->mode, 0, OUTPUT_FULL_WIDTH,
NULL, NULL, NULL);
NULL, NULL, NULL, &previous_ts, &previous_boot_id);
if (r < 0) {
log_error_errno(r, "Failed to serialize item: %m");
return MHD_CONTENT_READER_END_WITH_ERROR;

6
src/journal/journalctl.c
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@ -2097,7 +2097,8 @@ int main(int argc, char *argv[]) {
bool previous_boot_id_valid = false, first_line = true, ellipsized = false, need_seek = false;
bool use_cursor = false, after_cursor = false;
_cleanup_(sd_journal_closep) sd_journal *j = NULL;
sd_id128_t previous_boot_id = {}; /* Unnecessary initialization to appease gcc */
sd_id128_t previous_boot_id = SD_ID128_NULL, previous_boot_id_output = SD_ID128_NULL;
dual_timestamp previous_ts_output = DUAL_TIMESTAMP_NULL;
int n_shown = 0, r, poll_fd = -1;
setlocale(LC_ALL, "");
@ -2672,7 +2673,8 @@ int main(int argc, char *argv[]) {
arg_no_hostname * OUTPUT_NO_HOSTNAME;
r = show_journal_entry(stdout, j, arg_output, 0, flags,
arg_output_fields, highlight, &ellipsized);
arg_output_fields, highlight, &ellipsized,
&previous_ts_output, &previous_boot_id_output);
need_seek = true;
if (r == -EADDRNOTAVAIL)
break;

4
src/login/loginctl.c
View File

@ -1267,9 +1267,9 @@ static int help(int argc, char *argv[], void *userdata) {
" -n --lines=INTEGER Number of journal entries to show\n"
" -o --output=STRING Change journal output mode (short, short-precise,\n"
" short-iso, short-iso-precise, short-full,\n"
" short-monotonic, short-unix, verbose, export,\n"
" short-monotonic, short-unix, short-delta,\n"
" json, json-pretty, json-sse, json-seq, cat,\n"
" with-unit)\n"
" verbose, export, with-unit)\n"
"\nSee the %s for details.\n",
program_invocation_short_name,
ansi_highlight(),

4
src/machine/machinectl.c
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@ -2462,9 +2462,9 @@ static int help(int argc, char *argv[], void *userdata) {
" --max-addresses=INTEGER Number of internet addresses to show at most\n"
" -o --output=STRING Change journal output mode (short, short-precise,\n"
" short-iso, short-iso-precise, short-full,\n"
" short-monotonic, short-unix, verbose, export,\n"
" short-monotonic, short-unix, short-delta,\n"
" json, json-pretty, json-sse, json-seq, cat,\n"
" with-unit)\n"
" verbose, export, with-unit)\n"
" --verify=MODE Verification mode for downloaded images (no,\n"
" checksum, signature)\n"
" --force Download image even if already exists\n"

94
src/shared/logs-show.c
View File

@ -317,15 +317,47 @@ static bool print_multiline(
return ellipsized;
}
static int output_timestamp_monotonic(FILE *f, const dual_timestamp *ts) {
static int output_timestamp_monotonic(
FILE *f, OutputMode mode,
const dual_timestamp *ts,
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) {
int written_chars = 0;
assert(f);
assert(ts);
assert(boot_id);
assert(previous_ts);
assert(previous_boot_id);
if (!VALID_MONOTONIC(ts->monotonic))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No valid monotonic timestamp available");
fprintf(f, "[%5"PRI_USEC".%06"PRI_USEC"]", ts->monotonic / USEC_PER_SEC, ts->monotonic % USEC_PER_SEC);
return 1 + 5 + 1 + 6 + 1;
written_chars += fprintf(f, "[%5"PRI_USEC".%06"PRI_USEC, ts->monotonic / USEC_PER_SEC, ts->monotonic % USEC_PER_SEC);
if (mode == OUTPUT_SHORT_DELTA) {
uint64_t delta;
bool reliable_ts = true;
if (VALID_MONOTONIC(previous_ts->monotonic) && sd_id128_equal(*boot_id, *previous_boot_id))
delta = usec_sub_unsigned(ts->monotonic, previous_ts->monotonic);
else if (VALID_REALTIME(ts->realtime) && VALID_REALTIME(previous_ts->realtime)) {
delta = usec_sub_unsigned(ts->realtime, previous_ts->realtime);
reliable_ts = false;
} else {
written_chars += fprintf(f, "%16s", "");
goto finish;
}
written_chars += fprintf(f, " <%5"PRI_USEC".%06"PRI_USEC"%s>", delta / USEC_PER_SEC, delta % USEC_PER_SEC, reliable_ts ? " " : "*");
}
finish:
written_chars += fprintf(f, "%s", "]");
return written_chars;
}
static int output_timestamp_realtime(
@ -426,7 +458,9 @@ static int output_short(
const Set *output_fields,
const size_t highlight[2],
const dual_timestamp *ts,
const sd_id128_t *boot_id) {
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) {
int r;
const void *data;
@ -459,6 +493,8 @@ static int output_short(
assert(j);
assert(ts);
assert(boot_id);
assert(previous_ts);
assert(previous_boot_id);
/* Set the threshold to one bigger than the actual print
* threshold, so that if the line is actually longer than what
@ -493,8 +529,8 @@ static int output_short(
audit = streq_ptr(transport, "audit");
if (mode == OUTPUT_SHORT_MONOTONIC)
r = output_timestamp_monotonic(f, ts);
if (IN_SET(mode, OUTPUT_SHORT_MONOTONIC, OUTPUT_SHORT_DELTA))
r = output_timestamp_monotonic(f, mode, ts, boot_id, previous_ts, previous_boot_id);
else
r = output_timestamp_realtime(f, j, mode, flags, ts);
if (r < 0)
@ -629,7 +665,9 @@ static int output_verbose(
const Set *output_fields,
const size_t highlight[2],
const dual_timestamp *ts,
const sd_id128_t *boot_id) {
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) {
const void *data;
size_t length;
@ -642,6 +680,8 @@ static int output_verbose(
assert(j);
assert(ts);
assert(boot_id);
assert(previous_ts);
assert(previous_boot_id);
sd_journal_set_data_threshold(j, 0);
@ -727,7 +767,9 @@ static int output_export(
const Set *output_fields,
const size_t highlight[2],
const dual_timestamp *ts,
const sd_id128_t *boot_id) {
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) {
_cleanup_free_ char *cursor = NULL;
const void *data;
@ -737,6 +779,8 @@ static int output_export(
assert(j);
assert(ts);
assert(boot_id);
assert(previous_ts);
assert(previous_boot_id);
sd_journal_set_data_threshold(j, 0);
@ -962,7 +1006,9 @@ static int output_json(
const Set *output_fields,
const size_t highlight[2],
const dual_timestamp *ts,
const sd_id128_t *boot_id) {
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) {
char sid[SD_ID128_STRING_MAX], usecbuf[DECIMAL_STR_MAX(usec_t)];
_cleanup_(json_variant_unrefp) JsonVariant *object = NULL;
@ -976,6 +1022,8 @@ static int output_json(
assert(j);
assert(ts);
assert(boot_id);
assert(previous_ts);
assert(previous_boot_id);
(void) sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD);
@ -1158,7 +1206,9 @@ static int output_cat(
const Set *output_fields,
const size_t highlight[2],
const dual_timestamp *ts,
const sd_id128_t *boot_id) {
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) {
int r, prio = LOG_INFO;
const char *field;
@ -1167,6 +1217,8 @@ static int output_cat(
assert(f);
assert(ts);
assert(boot_id);
assert(previous_ts);
assert(previous_boot_id);
(void) sd_journal_set_data_threshold(j, 0);
@ -1259,13 +1311,16 @@ static int (*output_funcs[_OUTPUT_MODE_MAX])(
const Set *output_fields,
const size_t highlight[2],
const dual_timestamp *ts,
const sd_id128_t *boot_id) = {
const sd_id128_t *boot_id,
const dual_timestamp *previous_ts,
const sd_id128_t *previous_boot_id) = {
[OUTPUT_SHORT] = output_short,
[OUTPUT_SHORT_ISO] = output_short,
[OUTPUT_SHORT_ISO_PRECISE] = output_short,
[OUTPUT_SHORT_PRECISE] = output_short,
[OUTPUT_SHORT_MONOTONIC] = output_short,
[OUTPUT_SHORT_DELTA] = output_short,
[OUTPUT_SHORT_UNIX] = output_short,
[OUTPUT_SHORT_FULL] = output_short,
[OUTPUT_VERBOSE] = output_verbose,
@ -1286,7 +1341,9 @@ int show_journal_entry(
OutputFlags flags,
char **output_fields,
const size_t highlight[2],
bool *ellipsized) {
bool *ellipsized,
dual_timestamp *previous_ts,
sd_id128_t *previous_boot_id) {
_cleanup_set_free_ Set *fields = NULL;
dual_timestamp ts = DUAL_TIMESTAMP_NULL;
@ -1295,6 +1352,8 @@ int show_journal_entry(
assert(mode >= 0);
assert(mode < _OUTPUT_MODE_MAX);
assert(previous_ts);
assert(previous_boot_id);
if (n_columns <= 0)
n_columns = columns();
@ -1311,7 +1370,11 @@ int show_journal_entry(
if (r < 0)
return log_error_errno(r, "Failed to get journal fields: %m");
r = output_funcs[mode](f, j, mode, n_columns, flags, fields, highlight, &ts, &boot_id);
r = output_funcs[mode](f, j, mode, n_columns, flags, fields, highlight, &ts, &boot_id, previous_ts, previous_boot_id);
/* Store timestamp and boot ID for next iteration */
*previous_ts = ts;
*previous_boot_id = boot_id;
if (ellipsized && r > 0)
*ellipsized = true;
@ -1348,6 +1411,8 @@ int show_journal(
unsigned line = 0;
bool need_seek = false;
int warn_cutoff = flags & OUTPUT_WARN_CUTOFF;
dual_timestamp previous_ts = DUAL_TIMESTAMP_NULL;
sd_id128_t previous_boot_id = SD_ID128_NULL;
assert(j);
assert(mode >= 0);
@ -1396,7 +1461,8 @@ int show_journal(
line++;
maybe_print_begin_newline(f, &flags);
r = show_journal_entry(f, j, mode, n_columns, flags, NULL, NULL, ellipsized);
r = show_journal_entry(f, j, mode, n_columns, flags, NULL, NULL, ellipsized,
&previous_ts, &previous_boot_id);
if (r < 0)
return r;
}

4
src/shared/logs-show.h
View File

@ -21,7 +21,9 @@ int show_journal_entry(
OutputFlags flags,
char **output_fields,
const size_t highlight[2],
bool *ellipsized);
bool *ellipsized,
dual_timestamp *previous_ts,
sd_id128_t *previous_boot_id);
int show_journal(
FILE *f,
sd_journal *j,

1
src/shared/output-mode.c
View File

@ -28,6 +28,7 @@ static const char *const output_mode_table[_OUTPUT_MODE_MAX] = {
[OUTPUT_SHORT_ISO_PRECISE] = "short-iso-precise",
[OUTPUT_SHORT_PRECISE] = "short-precise",
[OUTPUT_SHORT_MONOTONIC] = "short-monotonic",
[OUTPUT_SHORT_DELTA] = "short-delta",
[OUTPUT_SHORT_UNIX] = "short-unix",
[OUTPUT_VERBOSE] = "verbose",
[OUTPUT_EXPORT] = "export",

1
src/shared/output-mode.h
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@ -11,6 +11,7 @@ typedef enum OutputMode {
OUTPUT_SHORT_ISO_PRECISE,
OUTPUT_SHORT_PRECISE,
OUTPUT_SHORT_MONOTONIC,
OUTPUT_SHORT_DELTA,
OUTPUT_SHORT_UNIX,
OUTPUT_VERBOSE,
OUTPUT_EXPORT,

2
src/systemctl/systemctl.c
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@ -291,7 +291,7 @@ static int systemctl_help(void) {
" -n --lines=INTEGER Number of journal entries to show\n"
" -o --output=STRING Change journal output mode (short, short-precise,\n"
" short-iso, short-iso-precise, short-full,\n"
" short-monotonic, short-unix,\n"
" short-monotonic, short-unix, short-delta,\n"
" verbose, export, json, json-pretty, json-sse, cat)\n"
" --firmware-setup Tell the firmware to show the setup menu on next boot\n"
" --boot-loader-menu=TIME\n"