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

   1 #include <ccan/tdb2/tdb.c>
   2 #include <ccan/tdb2/open.c>
   3 #include <ccan/tdb2/free.c>
   4 #include <ccan/tdb2/lock.c>
   5 #include <ccan/tdb2/io.c>
   6 #include <ccan/tdb2/hash.c>
   7 #include <ccan/tdb2/check.c>
   8 #include <ccan/tdb2/transaction.c>
   9 #include <ccan/tap/tap.h>
  10 #include <ccan/ilog/ilog.h>
  11 #include "logging.h"
  12
  13 #define MAX_SIZE 13100
  14 #define SIZE_STEP 131
  15
  16 static tdb_off_t tdb_offset(struct tdb_context *tdb, struct tdb_data key)
  17 {
  18         tdb_off_t off;
  19         struct tdb_used_record rec;
  20         struct hash_info h;
  21
  22         off = find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL);
  23         if (TDB_OFF_IS_ERR(off))
  24                 return 0;
  25         tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_RDLCK);
  26         return off;
  27 }
  28
  29 int main(int argc, char *argv[])
  30 {
  31         unsigned int i, j, moves;
  32         struct tdb_context *tdb;
  33         unsigned char *buffer;
  34         tdb_off_t oldoff = 0, newoff;
  35         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  36                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  37                         TDB_NOMMAP|TDB_CONVERT };
  38         struct tdb_data key = { (unsigned char *)"key", 3 };
  39         struct tdb_data data;
  40
  41         buffer = malloc(MAX_SIZE);
  42         for (i = 0; i < MAX_SIZE; i++)
  43                 buffer[i] = i;
  44
  45         plan_tests(sizeof(flags) / sizeof(flags[0])
  46                    * ((3 + MAX_SIZE/SIZE_STEP * 5) * 2 + 7)
  47                    + 1);
  48
  49         /* Using tdb_store. */
  50         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  51                 tdb = tdb_open("run-append.tdb", flags[i],
  52                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  53                 ok1(tdb);
  54                 if (!tdb)
  55                         continue;
  56
  57                 moves = 0;
  58                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  59                         data.dptr = buffer;
  60                         data.dsize = j;
  61                         ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  62                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  63                         ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
  64                         ok1(data.dsize == j);
  65                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  66                         free(data.dptr);
  67                         newoff = tdb_offset(tdb, key);
  68                         if (newoff != oldoff)
  69                                 moves++;
  70                         oldoff = newoff;
  71                 }
  72                 ok1(tdb->allrecord_lock.count == 0 && tdb->num_lockrecs == 0);
  73                 /* We should increase by 50% each time... */
  74                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
  75                 tdb_close(tdb);
  76         }
  77
  78         /* Using tdb_append. */
  79         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  80                 size_t prev_len = 0;
  81                 tdb = tdb_open("run-append.tdb", flags[i],
  82                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  83                 ok1(tdb);
  84                 if (!tdb)
  85                         continue;
  86
  87                 moves = 0;
  88                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  89                         data.dptr = buffer + prev_len;
  90                         data.dsize = j - prev_len;
  91                         ok1(tdb_append(tdb, key, data) == 0);
  92                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  93                         ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
  94                         ok1(data.dsize == j);
  95                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  96                         free(data.dptr);
  97                         prev_len = data.dsize;
  98                         newoff = tdb_offset(tdb, key);
  99                         if (newoff != oldoff)
 100                                 moves++;
 101                         oldoff = newoff;
 102                 }
 103                 ok1(tdb->allrecord_lock.count == 0 && tdb->num_lockrecs == 0);
 104                 /* We should increase by 50% each time... */
 105                 ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
 106                 tdb_close(tdb);
 107         }
 108
 109         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
 110                 tdb = tdb_open("run-append.tdb", flags[i],
 111                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
 112                 ok1(tdb);
 113                 if (!tdb)
 114                         continue;
 115
 116                 /* Huge initial store. */
 117                 data.dptr = buffer;
 118                 data.dsize = MAX_SIZE;
 119                 ok1(tdb_append(tdb, key, data) == 0);
 120                 ok1(tdb_check(tdb, NULL, NULL) == 0);
 121                 ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
 122                 ok1(data.dsize == MAX_SIZE);
 123                 ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
 124                 free(data.dptr);
 125                 ok1(tdb->allrecord_lock.count == 0 && tdb->num_lockrecs == 0);
 126                 tdb_close(tdb);
 127         }
 128
 129         ok1(tap_log_messages == 0);
 130         free(buffer);
 131         return exit_status();
 132 }