git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-15-append.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/tap/tap.h>
   8 #include <ccan/ilog/ilog.h>
   9 #include "logging.h"
  10
  11 #define MAX_SIZE 13100
  12 #define SIZE_STEP 131
  13
  14 static tdb_off_t tdb_offset(struct tdb_context *tdb, struct tdb_data key)
  15 {
  16         tdb_off_t off;
  17         struct tdb_used_record rec;
  18         struct hash_info h;
  19
  20         off = find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL);
  21         if (unlikely(off == TDB_OFF_ERR))
  22                 return 0;
  23         tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_RDLCK);
  24         return off;
  25 }
  26
  27 int main(int argc, char *argv[])
  28 {
  29         unsigned int i, j, moves;
  30         struct tdb_context *tdb;
  31         unsigned char *buffer;
  32         tdb_off_t oldoff = 0, newoff;
  33         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  34                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  35                         TDB_NOMMAP|TDB_CONVERT };
  36         struct tdb_data key = { (unsigned char *)"key", 3 };
  37         struct tdb_data data;
  38
  39         buffer = malloc(MAX_SIZE);
  40         for (i = 0; i < MAX_SIZE; i++)
  41                 buffer[i] = i;
  42
  43         plan_tests(sizeof(flags) / sizeof(flags[0])
  44                    * ((3 + MAX_SIZE/SIZE_STEP * 4) * 2 + 6)
  45                    + 1);
  46
  47         /* Using tdb_store. */
  48         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  49                 tdb = tdb_open("run-append.tdb", flags[i],
  50                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  51                 ok1(tdb);
  52                 if (!tdb)
  53                         continue;
  54
  55                 moves = 0;
  56                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  57                         data.dptr = buffer;
  58                         data.dsize = j;
  59                         ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  60                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  61                         data = tdb_fetch(tdb, key);
  62                         ok1(data.dsize == j);
  63                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  64                         free(data.dptr);
  65                         newoff = tdb_offset(tdb, key);
  66                         if (newoff != oldoff)
  67                                 moves++;
  68                         oldoff = newoff;
  69                 }
  70                 ok1(!tdb_has_locks(tdb));
  71                 /* We should increase by 50% each time... */
  72                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
  73                 tdb_close(tdb);
  74         }
  75
  76         /* Using tdb_append. */
  77         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  78                 size_t prev_len = 0;
  79                 tdb = tdb_open("run-append.tdb", flags[i],
  80                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  81                 ok1(tdb);
  82                 if (!tdb)
  83                         continue;
  84
  85                 moves = 0;
  86                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  87                         data.dptr = buffer + prev_len;
  88                         data.dsize = j - prev_len;
  89                         ok1(tdb_append(tdb, key, data) == 0);
  90                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  91                         data = tdb_fetch(tdb, key);
  92                         ok1(data.dsize == j);
  93                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  94                         free(data.dptr);
  95                         prev_len = data.dsize;
  96                         newoff = tdb_offset(tdb, key);
  97                         if (newoff != oldoff)
  98                                 moves++;
  99                         oldoff = newoff;
 100                 }
 101                 ok1(!tdb_has_locks(tdb));
 102                 /* We should increase by 50% each time... */
 103                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
 104                 tdb_close(tdb);
 105         }
 106
 107         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
 108                 tdb = tdb_open("run-append.tdb", flags[i],
 109                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
 110                 ok1(tdb);
 111                 if (!tdb)
 112                         continue;
 113
 114                 /* Huge initial store. */
 115                 data.dptr = buffer;
 116                 data.dsize = MAX_SIZE;
 117                 ok1(tdb_append(tdb, key, data) == 0);
 118                 ok1(tdb_check(tdb, NULL, NULL) == 0);
 119                 data = tdb_fetch(tdb, key);
 120                 ok1(data.dsize == MAX_SIZE);
 121                 ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
 122                 free(data.dptr);
 123                 ok1(!tdb_has_locks(tdb));
 124                 tdb_close(tdb);
 125         }
 126
 127         ok1(tap_log_messages == 0);
 128         return exit_status();
 129 }