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/tdb2/transaction.c>
   8 #include <ccan/tap/tap.h>
   9 #include <ccan/ilog/ilog.h>
  10 #include "logging.h"
  11
  12 #define MAX_SIZE 13100
  13 #define SIZE_STEP 131
  14
  15 static tdb_off_t tdb_offset(struct tdb_context *tdb, struct tdb_data key)
  16 {
  17         tdb_off_t off;
  18         struct tdb_used_record rec;
  19         struct hash_info h;
  20
  21         off = find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL);
  22         if (unlikely(off == TDB_OFF_ERR))
  23                 return 0;
  24         tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_RDLCK);
  25         return off;
  26 }
  27
  28 int main(int argc, char *argv[])
  29 {
  30         unsigned int i, j, moves;
  31         struct tdb_context *tdb;
  32         unsigned char *buffer;
  33         tdb_off_t oldoff = 0, newoff;
  34         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  35                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  36                         TDB_NOMMAP|TDB_CONVERT };
  37         struct tdb_data key = { (unsigned char *)"key", 3 };
  38         struct tdb_data data;
  39
  40         buffer = malloc(MAX_SIZE);
  41         for (i = 0; i < MAX_SIZE; i++)
  42                 buffer[i] = i;
  43
  44         plan_tests(sizeof(flags) / sizeof(flags[0])
  45                    * ((3 + MAX_SIZE/SIZE_STEP * 4) * 2 + 6)
  46                    + 1);
  47
  48         /* Using tdb_store. */
  49         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  50                 tdb = tdb_open("run-append.tdb", flags[i],
  51                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  52                 ok1(tdb);
  53                 if (!tdb)
  54                         continue;
  55
  56                 moves = 0;
  57                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  58                         data.dptr = buffer;
  59                         data.dsize = j;
  60                         ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  61                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  62                         data = tdb_fetch(tdb, key);
  63                         ok1(data.dsize == j);
  64                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  65                         free(data.dptr);
  66                         newoff = tdb_offset(tdb, key);
  67                         if (newoff != oldoff)
  68                                 moves++;
  69                         oldoff = newoff;
  70                 }
  71                 ok1(tdb->allrecord_lock.count == 0 && tdb->num_lockrecs == 0);
  72                 /* We should increase by 50% each time... */
  73                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
  74                 tdb_close(tdb);
  75         }
  76
  77         /* Using tdb_append. */
  78         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  79                 size_t prev_len = 0;
  80                 tdb = tdb_open("run-append.tdb", flags[i],
  81                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  82                 ok1(tdb);
  83                 if (!tdb)
  84                         continue;
  85
  86                 moves = 0;
  87                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  88                         data.dptr = buffer + prev_len;
  89                         data.dsize = j - prev_len;
  90                         ok1(tdb_append(tdb, key, data) == 0);
  91                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  92                         data = tdb_fetch(tdb, key);
  93                         ok1(data.dsize == j);
  94                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  95                         free(data.dptr);
  96                         prev_len = data.dsize;
  97                         newoff = tdb_offset(tdb, key);
  98                         if (newoff != oldoff)
  99                                 moves++;
 100                         oldoff = newoff;
 101                 }
 102                 ok1(tdb->allrecord_lock.count == 0 && tdb->num_lockrecs == 0);
 103                 /* We should increase by 50% each time... */
 104                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
 105                 tdb_close(tdb);
 106         }
 107
 108         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
 109                 tdb = tdb_open("run-append.tdb", flags[i],
 110                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
 111                 ok1(tdb);
 112                 if (!tdb)
 113                         continue;
 114
 115                 /* Huge initial store. */
 116                 data.dptr = buffer;
 117                 data.dsize = MAX_SIZE;
 118                 ok1(tdb_append(tdb, key, data) == 0);
 119                 ok1(tdb_check(tdb, NULL, NULL) == 0);
 120                 data = tdb_fetch(tdb, key);
 121                 ok1(data.dsize == MAX_SIZE);
 122                 ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
 123                 free(data.dptr);
 124                 ok1(tdb->allrecord_lock.count == 0 && tdb->num_lockrecs == 0);
 125                 tdb_close(tdb);
 126         }
 127
 128         ok1(tap_log_messages == 0);
 129         return exit_status();
 130 }