lib/tdb2/test/run-tdb1-seqnum-wrap.c

   1 #include "tdb2-source.h"
   2 #include <ccan/tap/tap.h>
   3 #include <stdlib.h>
   4 #include <err.h>
   5 #include "logging.h"
   6
   7 int main(int argc, char *argv[])
   8 {
   9         struct tdb_context *tdb;
  10         unsigned int i;
  11         struct tdb1_header hdr;
  12         struct tdb_data key = { (unsigned char *)&hdr, sizeof(hdr) };
  13         struct tdb_data data = { (unsigned char *)&hdr, sizeof(hdr) };
  14         int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
  15                         TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT };
  16
  17         plan_tests(sizeof(flags) / sizeof(flags[0]) * 7);
  18         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  19                 tdb = tdb_open("run-tdb1-seqnum-wrap.tdb1",
  20                                flags[i]|TDB_VERSION1|TDB_SEQNUM,
  21                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  22                 ok1(tdb);
  23                 if (!tdb)
  24                         break;
  25                 ok1(pread(tdb->file->fd, &hdr, sizeof(hdr), 0) == sizeof(hdr));
  26                 hdr.sequence_number = 0xFFFFFFFF;
  27                 ok1(pwrite(tdb->file->fd, &hdr, sizeof(hdr), 0) == sizeof(hdr));
  28
  29                 /* Must not be negative: that would mean an error! */
  30                 ok1(tdb_get_seqnum(tdb) == 0xFFFFFFFF);
  31
  32                 ok1(tdb_store(tdb, key, data, TDB_INSERT) == TDB_SUCCESS);
  33                 ok1(tdb_get_seqnum(tdb) == 0);
  34                 tdb_close(tdb);
  35                 ok1(tap_log_messages == 0);
  36         }
  37
  38         return exit_status();
  39 }