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

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