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journalctl: add a marker to log output for reboots

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With this we'll print a marker "----- Reboot -----" between two
subsequent lines with different boot IDs.
This commit is contained in:
Lennart Poettering 2012-07-11 01:36:55 +02:00
parent a963990ff4
commit 14a65d65a0
4 changed files with 18 additions and 6 deletions
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2
TODO
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@ -56,8 +56,6 @@ Features:
* when running as user instance: implicitly default to WorkingDirectory=$HOME for all services.
* journalctl highlight reboots
* Merge KillUnit()'s mode and who params into one
* load-fragment: when loading a unit file via a chain of symlinks

2
man/journalctl.xml
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@ -223,7 +223,7 @@
<listitem><para>Takes an absolute
directory path as argument. If
specified will opearte on the
specified will operate on the
specified journal directory instead of
the default runtime and system journal
paths.</para></listitem>

14
src/journal/journalctl.c
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@ -299,6 +299,8 @@ int main(int argc, char *argv[]) {
sd_journal *j = NULL;
unsigned line = 0;
bool need_seek = false;
sd_id128_t previous_boot_id;
bool previous_boot_id_valid = false;
log_parse_environment();
log_open();
@ -390,6 +392,8 @@ int main(int argc, char *argv[]) {
for (;;) {
for (;;) {
sd_id128_t boot_id;
if (need_seek) {
r = sd_journal_next(j);
if (r < 0) {
@ -401,6 +405,16 @@ int main(int argc, char *argv[]) {
if (r == 0)
break;
r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
if (r >= 0) {
if (previous_boot_id_valid &&
!sd_id128_equal(boot_id, previous_boot_id))
printf(ANSI_HIGHLIGHT_ON "----- Reboot -----" ANSI_HIGHLIGHT_OFF "\n");
previous_boot_id = boot_id;
previous_boot_id_valid = true;
}
line ++;
r = output_journal(j, arg_output, line, 0, arg_show_all);

6
src/journal/sd-journal.c
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@ -1397,8 +1397,6 @@ _public_ int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id12
if (!j)
return -EINVAL;
if (!ret)
return -EINVAL;
f = j->current_file;
if (!f)
@ -1422,7 +1420,9 @@ _public_ int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id12
return -ESTALE;
}
*ret = le64toh(o->entry.monotonic);
if (ret)
*ret = le64toh(o->entry.monotonic);
return 0;
}