git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-seed.c

   1 #include <ccan/tdb2/tdb.c>
   2 #include <ccan/tdb2/free.c>
   3 #include <ccan/tdb2/lock.c>
   4 #include <ccan/tdb2/io.c>
   5 #include <ccan/tdb2/hash.c>
   6 #include <ccan/tdb2/check.c>
   7 #include <ccan/tdb2/transaction.c>
   8 #include <ccan/tap/tap.h>
   9 #include "logging.h"
  10
  11 static int log_count = 0;
  12
  13 /* Normally we get a log when setting random seed. */
  14 static void my_log_fn(struct tdb_context *tdb,
  15                       enum tdb_debug_level level, void *priv,
  16                       const char *fmt, ...)
  17 {
  18         log_count++;
  19 }
  20
  21 static union tdb_attribute log_attr = {
  22         .log = { .base = { .attr = TDB_ATTRIBUTE_LOG },
  23                  .log_fn = my_log_fn }
  24 };
  25
  26 int main(int argc, char *argv[])
  27 {
  28         unsigned int i;
  29         struct tdb_context *tdb;
  30         union tdb_attribute attr;
  31         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  32                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  33                         TDB_NOMMAP|TDB_CONVERT };
  34
  35         attr.seed.base.attr = TDB_ATTRIBUTE_SEED;
  36         attr.seed.base.next = &log_attr;
  37         attr.seed.seed = 42;
  38
  39         plan_tests(sizeof(flags) / sizeof(flags[0]) * 4 + 4 * 3);
  40         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  41                 struct tdb_header hdr;
  42                 int fd;
  43                 tdb = tdb_open("run-seed.tdb", flags[i],
  44                                O_RDWR|O_CREAT|O_TRUNC, 0600, &attr);
  45                 ok1(tdb);
  46                 if (!tdb)
  47                         continue;
  48                 ok1(tdb_check(tdb, NULL, NULL) == 0);
  49                 ok1(tdb->hash_seed == 42);
  50                 ok1(log_count == 0);
  51                 tdb_close(tdb);
  52
  53                 if (flags[i] & TDB_INTERNAL)
  54                         continue;
  55
  56                 fd = open("run-seed.tdb", O_RDONLY);
  57                 ok1(fd >= 0);
  58                 ok1(read(fd, &hdr, sizeof(hdr)) == sizeof(hdr));
  59                 if (flags[i] & TDB_CONVERT)
  60                         ok1(bswap_64(hdr.hash_seed) == 42);
  61                 else
  62                         ok1(hdr.hash_seed == 42);
  63                 close(fd);
  64         }
  65         return exit_status();
  66 }