samples/jio3.c

   1
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <unistd.h>
   8
   9 #include <libjio.h>
  10
  11
  12 int main(int argc, char **argv)
  13 {
  14         int rv;
  15         jfs_t *fs;
  16         jtrans_t *ts;
  17
  18         fs = jopen("test3", O_RDWR | O_CREAT, 0660, 0);
  19         if (fs == NULL)
  20                 perror("jopen()");
  21
  22         ts = jtrans_new(fs);
  23         if (ts == NULL)
  24                 perror("jtrans_new()");
  25
  26 #define str1 "1ROLLBACKTEST1!\n"
  27         jtrans_add(ts, str1, strlen(str1), 0);
  28
  29 #define str2 "2ROLLBACKTEST2!\n"
  30         jtrans_add(ts, str2, strlen(str2), strlen(str1));
  31
  32 #define str3 "3ROLLBACKTEST3!\n"
  33         jtrans_add(ts, str3, strlen(str3), strlen(str1) + strlen(str2));
  34
  35         rv = jtrans_commit(ts);
  36         if (rv != strlen(str1) + strlen(str2) + strlen(str3))
  37                 perror("jtrans_commit()");
  38         printf("commit ok: %d\n", rv);
  39
  40         rv = jtrans_rollback(ts);
  41         if (rv < 0)
  42                 perror("jtrans_rollback()");
  43         printf("rollback ok: %d\n", rv);
  44
  45         jtrans_free(ts);
  46
  47         if (jclose(fs))
  48                 perror("jclose()");
  49
  50         return 0;
  51 }
  52