git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-15-append.c

   1 #include "tdb2-source.h"
   2 #include <ccan/tap/tap.h>
   3 #include <ccan/ilog/ilog.h>
   4 #include "logging.h"
   5
   6 #define MAX_SIZE 13100
   7 #define SIZE_STEP 131
   8
   9 static tdb_off_t tdb_offset(struct tdb_context *tdb, struct tdb_data key)
  10 {
  11         tdb_off_t off;
  12         struct tdb_used_record rec;
  13         struct hash_info h;
  14
  15         off = find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL);
  16         if (TDB_OFF_IS_ERR(off))
  17                 return 0;
  18         tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_RDLCK);
  19         return off;
  20 }
  21
  22 int main(int argc, char *argv[])
  23 {
  24         unsigned int i, j, moves;
  25         struct tdb_context *tdb;
  26         unsigned char *buffer;
  27         tdb_off_t oldoff = 0, newoff;
  28         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  29                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  30                         TDB_NOMMAP|TDB_CONVERT };
  31         struct tdb_data key = tdb_mkdata("key", 3);
  32         struct tdb_data data;
  33
  34         buffer = malloc(MAX_SIZE);
  35         for (i = 0; i < MAX_SIZE; i++)
  36                 buffer[i] = i;
  37
  38         plan_tests(sizeof(flags) / sizeof(flags[0])
  39                    * ((3 + MAX_SIZE/SIZE_STEP * 5) * 2 + 7)
  40                    + 1);
  41
  42         /* Using tdb_store. */
  43         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  44                 tdb = tdb_open("run-append.tdb", flags[i],
  45                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  46                 ok1(tdb);
  47                 if (!tdb)
  48                         continue;
  49
  50                 moves = 0;
  51                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  52                         data.dptr = buffer;
  53                         data.dsize = j;
  54                         ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  55                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  56                         ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
  57                         ok1(data.dsize == j);
  58                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  59                         free(data.dptr);
  60                         newoff = tdb_offset(tdb, key);
  61                         if (newoff != oldoff)
  62                                 moves++;
  63                         oldoff = newoff;
  64                 }
  65                 ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
  66                                    && tdb->file->num_lockrecs == 0));
  67                 /* We should increase by 50% each time... */
  68                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
  69                 tdb_close(tdb);
  70         }
  71
  72         /* Using tdb_append. */
  73         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  74                 size_t prev_len = 0;
  75                 tdb = tdb_open("run-append.tdb", flags[i],
  76                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  77                 ok1(tdb);
  78                 if (!tdb)
  79                         continue;
  80
  81                 moves = 0;
  82                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  83                         data.dptr = buffer + prev_len;
  84                         data.dsize = j - prev_len;
  85                         ok1(tdb_append(tdb, key, data) == 0);
  86                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  87                         ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
  88                         ok1(data.dsize == j);
  89                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  90                         free(data.dptr);
  91                         prev_len = data.dsize;
  92                         newoff = tdb_offset(tdb, key);
  93                         if (newoff != oldoff)
  94                                 moves++;
  95                         oldoff = newoff;
  96                 }
  97                 ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
  98                                    && tdb->file->num_lockrecs == 0));
  99                 /* We should increase by 50% each time... */
 100                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
 101                 tdb_close(tdb);
 102         }
 103
 104         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
 105                 tdb = tdb_open("run-append.tdb", flags[i],
 106                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
 107                 ok1(tdb);
 108                 if (!tdb)
 109                         continue;
 110
 111                 /* Huge initial store. */
 112                 data.dptr = buffer;
 113                 data.dsize = MAX_SIZE;
 114                 ok1(tdb_append(tdb, key, data) == 0);
 115                 ok1(tdb_check(tdb, NULL, NULL) == 0);
 116                 ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
 117                 ok1(data.dsize == MAX_SIZE);
 118                 ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
 119                 free(data.dptr);
 120                 ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
 121                                    && tdb->file->num_lockrecs == 0));
 122                 tdb_close(tdb);
 123         }
 124
 125         ok1(tap_log_messages == 0);
 126         free(buffer);
 127         return exit_status();
 128 }