Ejemplo n.º 1
0
static int journal_previous_skip (lua_State *L) {
	sd_journal *j = check_journal(L, 1);
	uint64_t skip = luaL_checkuint64(L, 2);
	int err = sd_journal_previous_skip(j, skip);
	if (err < 0) return handle_error(L, -err);
	lua_pushinteger(L, err);
	return 1;
}
Ejemplo n.º 2
0
static void test_skip(void (*setup)(void))
{
    char t[] = "/tmp/journal-skip-XXXXXX";
    sd_journal *j;
    int r;

    assert_se(mkdtemp(t));
    assert_se(chdir(t) >= 0);

    setup();

    /* Seek to head, iterate down.
     */
    assert_ret(sd_journal_open_directory(&j, t, 0));
    assert_ret(sd_journal_seek_head(j));
    assert_ret(sd_journal_next(j));
    test_check_numbers_down(j, 4);
    sd_journal_close(j);

    /* Seek to tail, iterate up.
     */
    assert_ret(sd_journal_open_directory(&j, t, 0));
    assert_ret(sd_journal_seek_tail(j));
    assert_ret(sd_journal_previous(j));
    test_check_numbers_up(j, 4);
    sd_journal_close(j);

    /* Seek to tail, skip to head, iterate down.
     */
    assert_ret(sd_journal_open_directory(&j, t, 0));
    assert_ret(sd_journal_seek_tail(j));
    assert_ret(r = sd_journal_previous_skip(j, 4));
    assert_se(r == 4);
    test_check_numbers_down(j, 4);
    sd_journal_close(j);

    /* Seek to head, skip to tail, iterate up.
     */
    assert_ret(sd_journal_open_directory(&j, t, 0));
    assert_ret(sd_journal_seek_head(j));
    assert_ret(r = sd_journal_next_skip(j, 4));
    assert_se(r == 4);
    test_check_numbers_up(j, 4);
    sd_journal_close(j);

    log_info("Done...");

    if (arg_keep)
        log_info("Not removing %s", t);
    else {
        journal_directory_vacuum(".", 3000000, 0, 0, NULL);

        assert_se(rm_rf_dangerous(t, false, true, false) >= 0);
    }

    puts("------------------------------------------------------------");
}
Ejemplo n.º 3
0
Archivo: systemd.c Proyecto: Aconex/pcp
void
systemd_init(pmdaInterface *dp)
{
    int sts;
    int journal_fd;

    dp->version.six.desc = systemd_desc;
    dp->version.six.fetch = systemd_fetch;
    dp->version.six.text = systemd_text;
    dp->version.six.attribute = systemd_contextAttributeCallBack;
    pmdaSetFetchCallBack(dp, systemd_fetchCallBack);
    pmdaSetEndContextCallBack(dp, systemd_end_contextCallBack);
    pmdaInit(dp, NULL, 0, metrictab, sizeof(metrictab)/sizeof(metrictab[0]));

    /* Initialize the systemd side.  This is failure-tolerant.  */
    /* XXX: SD_JOURNAL_{LOCAL|RUNTIME|SYSTEM}_ONLY */
    sts = sd_journal_open(& journald_context, 0);
    if (sts < 0) {
        __pmNotifyErr(LOG_ERR, "sd_journal_open failure: %s",
                      strerror(-sts));
        dp->status = sts;
        return;
    }

    sts = sd_journal_open(& journald_context_seeky, 0);
    if (sts < 0) {
        __pmNotifyErr(LOG_ERR, "sd_journal_open #2 failure: %s",
                      strerror(-sts));
        dp->status = sts;
        return;
    }

    sts = sd_journal_seek_tail(journald_context);
    if (sts < 0) {
        __pmNotifyErr(LOG_ERR, "sd_journal_seek_tail failure: %s",
                      strerror(-sts));
    }

    /* Work around RHBZ979487. */
    sts = sd_journal_previous_skip(journald_context, 1);
    if (sts < 0) {
        __pmNotifyErr(LOG_ERR, "sd_journal_previous_skip failure: %s",
                      strerror(-sts));
    }

    /* Arrange to wake up for journal events. */
    journal_fd = sd_journal_get_fd(journald_context);
    if (journal_fd < 0) {
        __pmNotifyErr(LOG_ERR, "sd_journal_get_fd failure: %s",
                      strerror(-journal_fd));
        /* NB: not a fatal error; the select() loop will still time out and
           periodically poll.  This makes it ok for sd_journal_reliable_fd()
           to be 0. */
    } else  {
        FD_SET(journal_fd, &fds);
        if (journal_fd > maxfd) maxfd = journal_fd;
    }

    /* NB: One queue is used for both .records and .records_raw; they
       just use different decoder callbacks. */
    queue_entries = pmdaEventNewQueue("systemd", maxmem);
    if (queue_entries < 0)
        __pmNotifyErr(LOG_ERR, "pmdaEventNewQueue failure: %s",
                      pmErrStr(queue_entries));
}
Ejemplo n.º 4
0
int main(int argc, char *argv[]) {
        int r;
        sd_journal *j = NULL;
        unsigned line = 0;
        bool need_seek = false;
        sd_id128_t previous_boot_id;
        bool previous_boot_id_valid = false;
        bool have_pager;

        log_parse_environment();
        log_open();

        r = parse_argv(argc, argv);
        if (r <= 0)
                goto finish;

        if (arg_new_id128) {
                r = generate_new_id128();
                goto finish;
        }

#ifdef HAVE_ACL
        if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0)
                log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this message off.");
#endif

        if (arg_directory)
                r = sd_journal_open_directory(&j, arg_directory, 0);
        else
                r = sd_journal_open(&j, arg_local ? SD_JOURNAL_LOCAL_ONLY : 0);

        if (r < 0) {
                log_error("Failed to open journal: %s", strerror(-r));
                goto finish;
        }

        if (arg_print_header) {
                journal_print_header(j);
                r = 0;
                goto finish;
        }

        r = add_this_boot(j);
        if (r < 0)
                goto finish;

        r = add_matches(j, argv + optind);
        if (r < 0)
                goto finish;

        if (!arg_quiet) {
                usec_t start, end;
                char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];

                r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
                if (r < 0) {
                        log_error("Failed to get cutoff: %s", strerror(-r));
                        goto finish;
                }

                if (r > 0) {
                        if (arg_follow)
                                printf("Logs begin at %s.\n", format_timestamp(start_buf, sizeof(start_buf), start));
                        else
                                printf("Logs begin at %s, end at %s.\n",
                                       format_timestamp(start_buf, sizeof(start_buf), start),
                                       format_timestamp(end_buf, sizeof(end_buf), end));
                }
        }

        if (arg_lines >= 0) {
                r = sd_journal_seek_tail(j);
                if (r < 0) {
                        log_error("Failed to seek to tail: %s", strerror(-r));
                        goto finish;
                }

                r = sd_journal_previous_skip(j, arg_lines);
        } else {
                r = sd_journal_seek_head(j);
                if (r < 0) {
                        log_error("Failed to seek to head: %s", strerror(-r));
                        goto finish;
                }

                r = sd_journal_next(j);
        }

        if (r < 0) {
                log_error("Failed to iterate through journal: %s", strerror(-r));
                goto finish;
        }

        have_pager = !arg_no_pager && !arg_follow;
        if (have_pager) {
                columns();
                pager_open();
        }

        if (arg_output == OUTPUT_JSON) {
                fputc('[', stdout);
                fflush(stdout);
        }

        for (;;) {
                for (;;) {
                        sd_id128_t boot_id;
                        int flags = (arg_show_all*OUTPUT_SHOW_ALL |
                                     have_pager*OUTPUT_FULL_WIDTH);

                        if (need_seek) {
                                r = sd_journal_next(j);
                                if (r < 0) {
                                        log_error("Failed to iterate through journal: %s", strerror(-r));
                                        goto finish;
                                }
                        }

                        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, flags);
                        if (r < 0)
                                goto finish;

                        need_seek = true;
                }

                if (!arg_follow)
                        break;

                r = sd_journal_wait(j, (uint64_t) -1);
                if (r < 0) {
                        log_error("Couldn't wait for log event: %s", strerror(-r));
                        goto finish;
                }
        }

        if (arg_output == OUTPUT_JSON)
                fputs("\n]\n", stdout);

finish:
        if (j)
                sd_journal_close(j);

        pager_close();

        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}