src/journal/test-journal-stream.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2012 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <unistd.h>
  23 #include <fcntl.h>
  24
  25 #include "systemd/sd-journal.h"
  26
  27 #include "journal-file.h"
  28 #include "journal-internal.h"
  29 #include "util.h"
  30 #include "log.h"
  31 #include "macro.h"
  32
  33 #define N_ENTRIES 200
  34
  35 static void verify_contents(sd_journal *j, unsigned skip) {
  36         unsigned i;
  37
  38         assert_se(j);
  39
  40         i = 0;
  41         SD_JOURNAL_FOREACH(j) {
  42                 const void *d;
  43                 char *k, *c;
  44                 size_t l;
  45                 unsigned u;
  46
  47                 assert_se(sd_journal_get_cursor(j, &k) >= 0);
  48                 printf("cursor: %s\n", k);
  49                 free(k);
  50
  51                 assert_se(sd_journal_get_data(j, "MAGIC", &d, &l) >= 0);
  52                 printf("\t%.*s\n", (int) l, (const char*) d);
  53
  54                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
  55                 assert_se(k = strndup(d, l));
  56                 printf("\t%s\n", k);
  57
  58                 if (skip > 0) {
  59                         assert_se(safe_atou(k + 7, &u) >= 0);
  60                         assert_se(i == u);
  61                         i += skip;
  62                 }
  63
  64                 free(k);
  65
  66                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
  67                 assert_se(sd_journal_test_cursor(j, c) > 0);
  68                 free(c);
  69         }
  70
  71         if (skip > 0)
  72                 assert_se(i == N_ENTRIES);
  73 }
  74
  75 int main(int argc, char *argv[]) {
  76         JournalFile *one, *two, *three;
  77         char t[] = "/tmp/journal-stream-XXXXXX";
  78         unsigned i;
  79         _cleanup_journal_close_ sd_journal *j = NULL;
  80         char *z;
  81         const void *data;
  82         size_t l;
  83
  84         /* journal_file_open requires a valid machine id */
  85         if (access("/etc/machine-id", F_OK) != 0)
  86                 return EXIT_TEST_SKIP;
  87
  88         log_set_max_level(LOG_DEBUG);
  89
  90         assert_se(mkdtemp(t));
  91         assert_se(chdir(t) >= 0);
  92
  93         assert_se(journal_file_open("one.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &one) == 0);
  94         assert_se(journal_file_open("two.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &two) == 0);
  95         assert_se(journal_file_open("three.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, &three) == 0);
  96
  97         for (i = 0; i < N_ENTRIES; i++) {
  98                 char *p, *q;
  99                 dual_timestamp ts;
 100                 struct iovec iovec[2];
 101
 102                 dual_timestamp_get(&ts);
 103
 104                 assert_se(asprintf(&p, "NUMBER=%u", i) >= 0);
 105                 iovec[0].iov_base = p;
 106                 iovec[0].iov_len = strlen(p);
 107
 108                 assert_se(asprintf(&q, "MAGIC=%s", i % 5 == 0 ? "quux" : "waldo") >= 0);
 109
 110                 iovec[1].iov_base = q;
 111                 iovec[1].iov_len = strlen(q);
 112
 113                 if (i % 10 == 0)
 114                         assert_se(journal_file_append_entry(three, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 115                 else {
 116                         if (i % 3 == 0)
 117                                 assert_se(journal_file_append_entry(two, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 118
 119                         assert_se(journal_file_append_entry(one, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 120                 }
 121
 122                 free(p);
 123                 free(q);
 124         }
 125
 126         journal_file_close(one);
 127         journal_file_close(two);
 128         journal_file_close(three);
 129
 130         assert_se(sd_journal_open_directory(&j, t, 0) >= 0);
 131
 132         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 133         SD_JOURNAL_FOREACH_BACKWARDS(j) {
 134                 _cleanup_free_ char *c;
 135
 136                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 137                 printf("\t%.*s\n", (int) l, (const char*) data);
 138
 139                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 140                 assert_se(sd_journal_test_cursor(j, c) > 0);
 141         }
 142
 143         SD_JOURNAL_FOREACH(j) {
 144                 _cleanup_free_ char *c;
 145
 146                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 147                 printf("\t%.*s\n", (int) l, (const char*) data);
 148
 149                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 150                 assert_se(sd_journal_test_cursor(j, c) > 0);
 151         }
 152
 153         sd_journal_flush_matches(j);
 154
 155         verify_contents(j, 1);
 156
 157         printf("NEXT TEST\n");
 158         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 159
 160         assert_se(z = journal_make_match_string(j));
 161         printf("resulting match expression is: %s\n", z);
 162         free(z);
 163
 164         verify_contents(j, 5);
 165
 166         printf("NEXT TEST\n");
 167         sd_journal_flush_matches(j);
 168         assert_se(sd_journal_add_match(j, "MAGIC=waldo", 0) >= 0);
 169         assert_se(sd_journal_add_match(j, "NUMBER=10", 0) >= 0);
 170         assert_se(sd_journal_add_match(j, "NUMBER=11", 0) >= 0);
 171         assert_se(sd_journal_add_match(j, "NUMBER=12", 0) >= 0);
 172
 173         assert_se(z = journal_make_match_string(j));
 174         printf("resulting match expression is: %s\n", z);
 175         free(z);
 176
 177         verify_contents(j, 0);
 178
 179         assert_se(sd_journal_query_unique(j, "NUMBER") >= 0);
 180         SD_JOURNAL_FOREACH_UNIQUE(j, data, l)
 181                 printf("%.*s\n", (int) l, (const char*) data);
 182
 183         assert_se(rm_rf_dangerous(t, false, true, false) >= 0);
 184
 185         return 0;
 186 }