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#include "tdb2.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <ccan/err/err.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
static void logfn(struct tdb_context *tdb,
enum tdb_log_level level,
enum TDB_ERROR ecode,
const char *message,
void *data)
{
fprintf(stderr, "tdb:%s:%s:%s\n",
tdb_name(tdb), tdb_errorstr(ecode), message);
}
int main(int argc, char *argv[])
{
unsigned int i, j, users, groups;
TDB_DATA idxkey, idxdata;
TDB_DATA k, d, gk;
char cmd[100];
struct tdb_context *tdb;
enum TDB_ERROR ecode;
union tdb_attribute log;
if (argc != 3) {
printf("Usage: growtdb-bench <users> <groups>\n");
exit(1);
}
users = atoi(argv[1]);
groups = atoi(argv[2]);
sprintf(cmd, "cat /proc/%i/statm", getpid());
log.base.attr = TDB_ATTRIBUTE_LOG;
log.base.next = NULL;
log.log.fn = logfn;
tdb = tdb_open("/tmp/growtdb.tdb", TDB_DEFAULT,
O_RDWR|O_CREAT|O_TRUNC, 0600, &log);
idxkey.dptr = (unsigned char *)"User index";
idxkey.dsize = strlen("User index");
idxdata.dsize = 51;
idxdata.dptr = calloc(idxdata.dsize, 1);
/* Create users. */
k.dsize = 48;
k.dptr = calloc(k.dsize, 1);
d.dsize = 64;
d.dptr = calloc(d.dsize, 1);
tdb_transaction_start(tdb);
for (i = 0; i < users; i++) {
memcpy(k.dptr, &i, sizeof(i));
ecode = tdb_store(tdb, k, d, TDB_INSERT);
if (ecode != TDB_SUCCESS)
errx(1, "tdb insert failed: %s", tdb_errorstr(ecode));
/* This simulates a growing index record. */
ecode = tdb_append(tdb, idxkey, idxdata);
if (ecode != TDB_SUCCESS)
errx(1, "tdb append failed: %s", tdb_errorstr(ecode));
}
if ((ecode = tdb_transaction_commit(tdb)) != 0)
errx(1, "tdb commit1 failed: %s", tdb_errorstr(ecode));
if ((ecode = tdb_check(tdb, NULL, NULL)) != 0)
errx(1, "tdb_check failed after initial insert!");
system(cmd);
/* Now put them all in groups: add 32 bytes to each record for
* a group. */
gk.dsize = 48;
gk.dptr = calloc(k.dsize, 1);
gk.dptr[gk.dsize-1] = 1;
d.dsize = 32;
for (i = 0; i < groups; i++) {
tdb_transaction_start(tdb);
/* Create the "group". */
memcpy(gk.dptr, &i, sizeof(i));
ecode = tdb_store(tdb, gk, d, TDB_INSERT);
if (ecode != TDB_SUCCESS)
errx(1, "tdb insert failed: %s", tdb_errorstr(ecode));
/* Now populate it. */
for (j = 0; j < users; j++) {
/* Append to the user. */
memcpy(k.dptr, &j, sizeof(j));
if ((ecode = tdb_append(tdb, k, d)) != 0)
errx(1, "tdb append failed: %s",
tdb_errorstr(ecode));
/* Append to the group. */
if ((ecode = tdb_append(tdb, gk, d)) != 0)
errx(1, "tdb append failed: %s",
tdb_errorstr(ecode));
}
if ((ecode = tdb_transaction_commit(tdb)) != 0)
errx(1, "tdb commit2 failed: %s", tdb_errorstr(ecode));
if ((ecode = tdb_check(tdb, NULL, NULL)) != 0)
errx(1, "tdb_check failed after iteration %i!", i);
system(cmd);
}
return 0;
}
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