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
  32 #define N_ENTRIES 200
  33
  34 static void verify_contents(sd_journal *j, unsigned skip) {
  35         unsigned i;
  36
  37         assert(j);
  38
  39         i = 0;
  40         SD_JOURNAL_FOREACH(j) {
  41                 const void *d;
  42                 char *k;
  43                 size_t l;
  44                 unsigned u;
  45
  46                 assert_se(sd_journal_get_cursor(j, &k) >= 0);
  47                 printf("cursor: %s\n", k);
  48                 free(k);
  49
  50                 assert_se(sd_journal_get_data(j, "MAGIC", &d, &l) >= 0);
  51                 printf("\t%.*s\n", (int) l, (const char*) d);
  52
  53                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
  54                 assert_se(k = strndup(d, l));
  55                 printf("\t%s\n", k);
  56
  57                 if (skip > 0) {
  58                         assert_se(safe_atou(k + 7, &u) >= 0);
  59                         assert_se(i == u);
  60                         i += skip;
  61                 }
  62
  63                 free(k);
  64         }
  65
  66         if (skip > 0)
  67                 assert_se(i == N_ENTRIES);
  68 }
  69
  70 int main(int argc, char *argv[]) {
  71         JournalFile *one, *two, *three;
  72         char t[] = "/tmp/journal-stream-XXXXXX";
  73         unsigned i;
  74         sd_journal *j;
  75         char *z;
  76
  77         log_set_max_level(LOG_DEBUG);
  78
  79         assert_se(mkdtemp(t));
  80         assert_se(chdir(t) >= 0);
  81
  82         assert_se(journal_file_open("one.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, &one) == 0);
  83         assert_se(journal_file_open("two.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, &two) == 0);
  84         assert_se(journal_file_open("three.journal", O_RDWR|O_CREAT, 0666, true, false, NULL, NULL, &three) == 0);
  85
  86         for (i = 0; i < N_ENTRIES; i++) {
  87                 char *p, *q;
  88                 dual_timestamp ts;
  89                 struct iovec iovec[2];
  90
  91                 dual_timestamp_get(&ts);
  92
  93                 assert_se(asprintf(&p, "NUMBER=%u", i) >= 0);
  94                 iovec[0].iov_base = p;
  95                 iovec[0].iov_len = strlen(p);
  96
  97                 assert_se(asprintf(&q, "MAGIC=%s", i % 5 == 0 ? "quux" : "waldo") >= 0);
  98
  99                 iovec[1].iov_base = q;
 100                 iovec[1].iov_len = strlen(q);
 101
 102                 if (i % 10 == 0)
 103                         assert_se(journal_file_append_entry(three, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 104                 else {
 105                         if (i % 3 == 0)
 106                                 assert_se(journal_file_append_entry(two, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 107
 108                         assert_se(journal_file_append_entry(one, &ts, iovec, 2, NULL, NULL, NULL) == 0);
 109                 }
 110
 111                 free(p);
 112                 free(q);
 113         }
 114
 115         journal_file_close(one);
 116         journal_file_close(two);
 117         journal_file_close(three);
 118
 119         assert_se(sd_journal_open_directory(&j, t, 0) >= 0);
 120
 121         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 122         SD_JOURNAL_FOREACH_BACKWARDS(j) {
 123                 const void *d;
 124                 size_t l;
 125
 126                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
 127                 printf("\t%.*s\n", (int) l, (const char*) d);
 128         }
 129
 130         SD_JOURNAL_FOREACH(j) {
 131                 const void *d;
 132                 size_t l;
 133
 134                 assert_se(sd_journal_get_data(j, "NUMBER", &d, &l) >= 0);
 135                 printf("\t%.*s\n", (int) l, (const char*) d);
 136         }
 137
 138         sd_journal_flush_matches(j);
 139
 140         verify_contents(j, 1);
 141
 142         printf("NEXT TEST\n");
 143         assert_se(sd_journal_add_match(j, "MAGIC=quux", 0) >= 0);
 144
 145         assert_se(z = journal_make_match_string(j));
 146         printf("resulting match expression is: %s\n", z);
 147         free(z);
 148
 149         verify_contents(j, 5);
 150
 151         printf("NEXT TEST\n");
 152         sd_journal_flush_matches(j);
 153         assert_se(sd_journal_add_match(j, "MAGIC=waldo", 0) >= 0);
 154         assert_se(sd_journal_add_match(j, "NUMBER=10", 0) >= 0);
 155         assert_se(sd_journal_add_match(j, "NUMBER=11", 0) >= 0);
 156         assert_se(sd_journal_add_match(j, "NUMBER=12", 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, 0);
 163
 164         sd_journal_close(j);
 165
 166         assert_se(rm_rf_dangerous(t, false, true, false) >= 0);
 167
 168         return 0;
 169 }