src/journal/test-journal-stream.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2012 Lennart Poettering
   6 ***/
   7
   8 #include <fcntl.h>
   9 #include <unistd.h>
  10
  11 #include "sd-journal.h"
  12
  13 #include "alloc-util.h"
  14 #include "journal-file.h"
  15 #include "journal-internal.h"
  16 #include "log.h"
  17 #include "macro.h"
  18 #include "parse-util.h"
  19 #include "rm-rf.h"
  20 #include "util.h"
  21
  22 #define N_ENTRIES 200
  23
  24 static void verify_contents(sd_journal *j, unsigned skip) {
  25         unsigned i;
  26
  27         assert_se(j);
  28
  29         i = 0;
  30         SD_JOURNAL_FOREACH(j) {
  31                 const void *d;
  32                 char *k, *c;
  33                 size_t l;
  34                 unsigned u = 0;
  35
  36                 assert_se(sd_journal_get_cursor(j, &k) >= 0);
  37                 printf("cursor: %s\n", k);
  38                 free(k);
  39
  40                 assert_se(sd_journal_get_data(j, "MAGIC", &d, &l) >= 0);
  41                 printf("\t%.*s\n", (int) l, (const char*) d);
  42
  43                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
  44                 assert_se(k = strndup(d, l));
  45                 printf("\t%s\n", k);
  46
  47                 if (skip > 0) {
  48                         assert_se(safe_atou(k + 7, &u) >= 0);
  49                         assert_se(i == u);
  50                         i += skip;
  51                 }
  52
  53                 free(k);
  54
  55                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
  56                 assert_se(sd_journal_test_cursor(j, c) > 0);
  57                 free(c);
  58         }
  59
  60         if (skip > 0)
  61                 assert_se(i == N_ENTRIES);
  62 }
  63
  64 int main(int argc, char *argv[]) {
  65         JournalFile *one, *two, *three;
  66         char t[] = "/tmp/journal-stream-XXXXXX";
  67         unsigned i;
  68         _cleanup_(sd_journal_closep) sd_journal *j = NULL;
  69         char *z;
  70         const void *data;
  71         size_t l;
  72         dual_timestamp previous_ts = DUAL_TIMESTAMP_NULL;
  73
  74         /* journal_file_open requires a valid machine id */
  75         if (access("/etc/machine-id", F_OK) != 0)
  76                 return EXIT_TEST_SKIP;
  77
  78         log_set_max_level(LOG_DEBUG);
  79
  80         assert_se(mkdtemp(t));
  81         assert_se(chdir(t) >= 0);
  82
  83         assert_se(journal_file_open(-1, "one.journal", O_RDWR|O_CREAT, 0666, true, (uint64_t) -1, false, NULL, NULL, NULL, NULL, &one) == 0);
  84         assert_se(journal_file_open(-1, "two.journal", O_RDWR|O_CREAT, 0666, true, (uint64_t) -1, false, NULL, NULL, NULL, NULL, &two) == 0);
  85         assert_se(journal_file_open(-1, "three.journal", O_RDWR|O_CREAT, 0666, true, (uint64_t) -1, false, NULL, NULL, NULL, NULL, &three) == 0);
  86
  87         for (i = 0; i < N_ENTRIES; i++) {
  88                 char *p, *q;
  89                 dual_timestamp ts;
  90                 struct iovec iovec[2];
  91
  92                 dual_timestamp_get(&ts);
  93
  94                 if (ts.monotonic <= previous_ts.monotonic)
  95                         ts.monotonic = previous_ts.monotonic + 1;
  96
  97                 if (ts.realtime <= previous_ts.realtime)
  98                         ts.realtime = previous_ts.realtime + 1;
  99
 100                 previous_ts = ts;
 101
 102                 assert_se(asprintf(&p, "NUMBER=%u", i) >= 0);
 103                 iovec[0].iov_base = p;
 104                 iovec[0].iov_len = strlen(p);
 105
 106                 assert_se(asprintf(&q, "MAGIC=%s", i % 5 == 0 ? "quux" : "waldo") >= 0);
 107
 108                 iovec[1].iov_base = q;
 109                 iovec[1].iov_len = strlen(q);
 110
 111                 if (i % 10 == 0)
 112                         assert_se(journal_file_append_entry(three, &ts, NULL, iovec, 2, NULL, NULL, NULL) == 0);
 113                 else {
 114                         if (i % 3 == 0)
 115                                 assert_se(journal_file_append_entry(two, &ts, NULL, iovec, 2, NULL, NULL, NULL) == 0);
 116
 117                         assert_se(journal_file_append_entry(one, &ts, NULL, iovec, 2, NULL, NULL, NULL) == 0);
 118                 }
 119
 120                 free(p);
 121                 free(q);
 122         }
 123
 124         (void) journal_file_close(one);
 125         (void) journal_file_close(two);
 126         (void) journal_file_close(three);
 127
 128         assert_se(sd_journal_open_directory(&j, t, 0) >= 0);
 129
 130         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 131         SD_JOURNAL_FOREACH_BACKWARDS(j) {
 132                 _cleanup_free_ char *c;
 133
 134                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 135                 printf("\t%.*s\n", (int) l, (const char*) data);
 136
 137                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 138                 assert_se(sd_journal_test_cursor(j, c) > 0);
 139         }
 140
 141         SD_JOURNAL_FOREACH(j) {
 142                 _cleanup_free_ char *c;
 143
 144                 assert_se(sd_journal_get_data(j, "NUMBER", &data, &l) >= 0);
 145                 printf("\t%.*s\n", (int) l, (const char*) data);
 146
 147                 assert_se(sd_journal_get_cursor(j, &c) >= 0);
 148                 assert_se(sd_journal_test_cursor(j, c) > 0);
 149         }
 150
 151         sd_journal_flush_matches(j);
 152
 153         verify_contents(j, 1);
 154
 155         printf("NEXT TEST\n");
 156         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 157
 158         assert_se(z = journal_make_match_string(j));
 159         printf("resulting match expression is: %s\n", z);
 160         free(z);
 161
 162         verify_contents(j, 5);
 163
 164         printf("NEXT TEST\n");
 165         sd_journal_flush_matches(j);
 166         assert_se(sd_journal_add_match(j, "MAGIC=waldo", 0) >= 0);
 167         assert_se(sd_journal_add_match(j, "NUMBER=10", 0) >= 0);
 168         assert_se(sd_journal_add_match(j, "NUMBER=11", 0) >= 0);
 169         assert_se(sd_journal_add_match(j, "NUMBER=12", 0) >= 0);
 170
 171         assert_se(z = journal_make_match_string(j));
 172         printf("resulting match expression is: %s\n", z);
 173         free(z);
 174
 175         verify_contents(j, 0);
 176
 177         assert_se(sd_journal_query_unique(j, "NUMBER") >= 0);
 178         SD_JOURNAL_FOREACH_UNIQUE(j, data, l)
 179                 printf("%.*s\n", (int) l, (const char*) data);
 180
 181         assert_se(rm_rf(t, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
 182
 183         return 0;
 184 }