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         if (tdb_get_flags(tdb) & TDB_VERSION1) {
  16                 struct tdb1_record rec;
  17                 return tdb1_find(tdb, key, tdb_hash(tdb, key.dptr, key.dsize),
  18                                  &rec);
  19         }
  20
  21         off = find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL);
  22         if (TDB_OFF_IS_ERR(off))
  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                         TDB_INTERNAL|TDB_VERSION1, TDB_VERSION1,
  38                         TDB_NOMMAP|TDB_VERSION1,
  39                         TDB_INTERNAL|TDB_CONVERT|TDB_VERSION1,
  40                         TDB_CONVERT|TDB_VERSION1,
  41                         TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };
  42         struct tdb_data key = tdb_mkdata("key", 3);
  43         struct tdb_data data;
  44
  45         buffer = malloc(MAX_SIZE);
  46         for (i = 0; i < MAX_SIZE; i++)
  47                 buffer[i] = i;
  48
  49         plan_tests(sizeof(flags) / sizeof(flags[0])
  50                    * ((3 + MAX_SIZE/SIZE_STEP * 5) * 2 + 7)
  51                    + 1);
  52
  53         /* Using tdb_store. */
  54         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  55                 tdb = tdb_open("run-append.tdb", flags[i],
  56                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  57                 ok1(tdb);
  58                 if (!tdb)
  59                         continue;
  60
  61                 moves = 0;
  62                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
  63                         data.dptr = buffer;
  64                         data.dsize = j;
  65                         ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  66                         ok1(tdb_check(tdb, NULL, NULL) == 0);
  67                         ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
  68                         ok1(data.dsize == j);
  69                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
  70                         free(data.dptr);
  71                         newoff = tdb_offset(tdb, key);
  72                         if (newoff != oldoff)
  73                                 moves++;
  74                         oldoff = newoff;
  75                 }
  76                 ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
  77                                    && tdb->file->num_lockrecs == 0));
  78                 if (flags[i] & TDB_VERSION1) {
  79                         /* TDB1 simply over-size by 25%. */
  80                         ok(moves <= ilog64(j / SIZE_STEP)*4,
  81                            "Moved %u times", moves);
  82                 } else {
  83                         /* We should increase by 50% each time... */
  84                         ok(moves <= ilog64(j / SIZE_STEP)*2,
  85                            "Moved %u times", moves);
  86                 }
  87                 tdb_close(tdb);
  88         }
  89
  90         /* Using tdb_append. */
  91         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  92                 size_t prev_len = 0;
  93                 tdb = tdb_open("run-append.tdb", flags[i],
  94                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  95                 ok1(tdb);
  96                 if (!tdb)
  97                         continue;
  98
  99                 moves = 0;
 100                 for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
 101                         data.dptr = buffer + prev_len;
 102                         data.dsize = j - prev_len;
 103                         ok1(tdb_append(tdb, key, data) == 0);
 104                         ok1(tdb_check(tdb, NULL, NULL) == 0);
 105                         ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
 106                         ok1(data.dsize == j);
 107                         ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
 108                         free(data.dptr);
 109                         prev_len = data.dsize;
 110                         newoff = tdb_offset(tdb, key);
 111                         if (newoff != oldoff)
 112                                 moves++;
 113                         oldoff = newoff;
 114                 }
 115                 ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
 116                                    && tdb->file->num_lockrecs == 0));
 117                 if (flags[i] & TDB_VERSION1) {
 118                         /* TDB1 simply over-size by 25%. */
 119                         ok(moves <= ilog64(j / SIZE_STEP)*4,
 120                            "Moved %u times", moves);
 121                 } else {
 122                         /* We should increase by 50% each time... */
 123                         ok(moves <= ilog64(j / SIZE_STEP)*2,
 124                            "Moved %u times", moves);
 125                 }
 126                 tdb_close(tdb);
 127         }
 128
 129         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
 130                 tdb = tdb_open("run-append.tdb", flags[i],
 131                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
 132                 ok1(tdb);
 133                 if (!tdb)
 134                         continue;
 135
 136                 /* Huge initial store. */
 137                 data.dptr = buffer;
 138                 data.dsize = MAX_SIZE;
 139                 ok1(tdb_append(tdb, key, data) == 0);
 140                 ok1(tdb_check(tdb, NULL, NULL) == 0);
 141                 ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
 142                 ok1(data.dsize == MAX_SIZE);
 143                 ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
 144                 free(data.dptr);
 145                 ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
 146                                    && tdb->file->num_lockrecs == 0));
 147                 tdb_close(tdb);
 148         }
 149
 150         ok1(tap_log_messages == 0);
 151         free(buffer);
 152         return exit_status();
 153 }