src/journal/test-journal-stream.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2012 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <fcntl.h>
  21 #include <unistd.h>
  22
  23 #include "sd-journal.h"
  24
  25 #include "alloc-util.h"
  26 #include "journal-file.h"
  27 #include "journal-internal.h"
  28 #include "log.h"
  29 #include "macro.h"
  30 #include "parse-util.h"
  31 #include "rm-rf.h"
  32 #include "util.h"
  33
  34 #define N_ENTRIES 200
  35
  36 static void verify_contents(sd_journal *j, unsigned skip) {
  37         unsigned i;
  38
  39         assert_se(j);
  40
  41         i = 0;
  42         SD_JOURNAL_FOREACH(j) {
  43                 const void *d;
  44                 char *k, *c;
  45                 size_t l;
  46                 unsigned u = 0;
  47
  48                 assert_se(sd_journal_get_cursor(j, &k) >= 0);
  49                 printf("cursor: %s\n", k);
  50                 free(k);
  51
  52                 assert_se(sd_journal_get_data(j, "MAGIC", &d, &l) >= 0);
  53                 printf("\t%.*s\n", (int) l, (const char*) d);
  54
  55                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
  56                 assert_se(k = strndup(d, l));
  57                 printf("\t%s\n", k);
  58
  59                 if (skip > 0) {
  60                         assert_se(safe_atou(k + 7, &u) >= 0);
  61                         assert_se(i == u);
  62                         i += skip;
  63                 }
  64
  65                 free(k);
  66
  67                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
  68                 assert_se(sd_journal_test_cursor(j, c) > 0);
  69                 free(c);
  70         }
  71
  72         if (skip > 0)
  73                 assert_se(i == N_ENTRIES);
  74 }
  75
  76 int main(int argc, char *argv[]) {
  77         JournalFile *one, *two, *three;
  78         char t[] = "/tmp/journal-stream-XXXXXX";
  79         unsigned i;
  80         _cleanup_(sd_journal_closep) sd_journal *j = NULL;
  81         char *z;
  82         const void *data;
  83         size_t l;
  84         dual_timestamp previous_ts = DUAL_TIMESTAMP_NULL;
  85
  86         /* journal_file_open requires a valid machine id */
  87         if (access("/etc/machine-id", F_OK) != 0)
  88                 return EXIT_TEST_SKIP;
  89
  90         log_set_max_level(LOG_DEBUG);
  91
  92         assert_se(mkdtemp(t));
  93         assert_se(chdir(t) >= 0);
  94
  95         assert_se(journal_file_open("one.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, NULL, &one) == 0);
  96         assert_se(journal_file_open("two.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, NULL, &two) == 0);
  97         assert_se(journal_file_open("three.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, NULL, NULL, &three) == 0);
  98
  99         for (i = 0; i < N_ENTRIES; i++) {
 100                 char *p, *q;
 101                 dual_timestamp ts;
 102                 struct iovec iovec[2];
 103
 104                 dual_timestamp_get(&ts);
 105
 106                 if (ts.monotonic <= previous_ts.monotonic)
 107                         ts.monotonic = previous_ts.monotonic + 1;
 108
 109                 if (ts.realtime <= previous_ts.realtime)
 110                         ts.realtime = previous_ts.realtime + 1;
 111
 112                 previous_ts = ts;
 113
 114                 assert_se(asprintf(&p, "NUMBER=%u", i) >= 0);
 115                 iovec[0].iov_base = p;
 116                 iovec[0].iov_len = strlen(p);
 117
 118                 assert_se(asprintf(&q, "MAGIC=%s", i % 5 == 0 ? "quux" : "waldo") >= 0);
 119
 120                 iovec[1].iov_base = q;
 121                 iovec[1].iov_len = strlen(q);
 122
 123                 if (i % 10 == 0)
 124                         assert_se(journal_file_append_entry(three, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 125                 else {
 126                         if (i % 3 == 0)
 127                                 assert_se(journal_file_append_entry(two, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 128
 129                         assert_se(journal_file_append_entry(one, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 130                 }
 131
 132                 free(p);
 133                 free(q);
 134         }
 135
 136         (void) journal_file_close(one);
 137         (void) journal_file_close(two);
 138         (void) journal_file_close(three);
 139
 140         assert_se(sd_journal_open_directory(&j, t, 0) >= 0);
 141
 142         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 143         SD_JOURNAL_FOREACH_BACKWARDS(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_FOREACH(j) {
 154                 _cleanup_free_ char *c;
 155
 156                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 157                 printf("\t%.*s\n", (int) l, (const char*) data);
 158
 159                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 160                 assert_se(sd_journal_test_cursor(j, c) > 0);
 161         }
 162
 163         sd_journal_flush_matches(j);
 164
 165         verify_contents(j, 1);
 166
 167         printf("NEXT TEST\n");
 168         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 169
 170         assert_se(z = journal_make_match_string(j));
 171         printf("resulting match expression is: %s\n", z);
 172         free(z);
 173
 174         verify_contents(j, 5);
 175
 176         printf("NEXT TEST\n");
 177         sd_journal_flush_matches(j);
 178         assert_se(sd_journal_add_match(j, "MAGIC=waldo", 0) >= 0);
 179         assert_se(sd_journal_add_match(j, "NUMBER=10", 0) >= 0);
 180         assert_se(sd_journal_add_match(j, "NUMBER=11", 0) >= 0);
 181         assert_se(sd_journal_add_match(j, "NUMBER=12", 0) >= 0);
 182
 183         assert_se(z = journal_make_match_string(j));
 184         printf("resulting match expression is: %s\n", z);
 185         free(z);
 186
 187         verify_contents(j, 0);
 188
 189         assert_se(sd_journal_query_unique(j, "NUMBER") >= 0);
 190         SD_JOURNAL_FOREACH_UNIQUE(j, data, l)
 191                 printf("%.*s\n", (int) l, (const char*) data);
 192
 193         assert_se(rm_rf(t, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
 194
 195         return 0;
 196 }