int bdb_con(db_con_t* con)
{
bdb_con_t* bcon;
bdb_uri_t* buri;
buri = DB_GET_PAYLOAD(con->uri);
/* First try to lookup the connection in the connection pool and
* re-use it if a match is found
*/
bcon = (bdb_con_t*)db_pool_get(con->uri);
if (bcon) {
DBG("bdb: Connection to %s found in connection pool\n",
buri->uri);
goto found;
}
bcon = (bdb_con_t*)pkg_malloc(sizeof(bdb_con_t));
if (!bcon) {
ERR("bdb: No memory left\n");
goto error;
}
memset(bcon, '\0', sizeof(bdb_con_t));
if (db_pool_entry_init(&bcon->gen, bdb_con_free, con->uri) < 0) goto error;
DBG("bdb: Preparing new connection to %s\n", buri->uri);
if(bdb_is_database(buri->path.s)!=0)
{
ERR("bdb: database [%.*s] does not exists!\n",
buri->path.len, buri->path.s);
goto error;
}
/* Put the newly created BDB connection into the pool */
db_pool_put((struct db_pool_entry*)bcon);
DBG("bdb: Connection stored in connection pool\n");
found:
/* Attach driver payload to the db_con structure and set connect and
* disconnect functions
*/
DB_SET_PAYLOAD(con, bcon);
con->connect = bdb_con_connect;
con->disconnect = bdb_con_disconnect;
return 0;
error:
if (bcon) {
db_pool_entry_free(&bcon->gen);
pkg_free(bcon);
}
return -1;
}
bdb_db_p bdblib_get_db(str *dirpath)
{
int rc;
bdb_db_p _db_p=NULL;
if(dirpath==0 || dirpath->s==NULL || dirpath->s[0]=='\0')
return NULL;
if(_bdb_parms==NULL)
{
ERR("bdb: cache is not initialized! Check if you loaded bdb "
"before any other module that uses it.\n");
return NULL;
}
if(!bdb_is_database(dirpath->s))
{
ERR("bdb: database [%.*s] does not exists!\n",
dirpath->len , dirpath->s);
return NULL;
}
_db_p = (bdb_db_p)pkg_malloc(sizeof(bdb_db_t));
if(!_db_p)
{
ERR("no private memory for dbenv_t.\n");
pkg_free(_db_p);
return NULL;
}
_db_p->name.s = (char*)pkg_malloc(dirpath->len*sizeof(char));
memcpy(_db_p->name.s, dirpath->s, dirpath->len);
_db_p->name.len = dirpath->len;
if ((rc = bdblib_create_dbenv(&(_db_p->dbenv), dirpath->s)) != 0)
{
ERR("bdblib_create_dbenv failed");
pkg_free(_db_p->name.s);
pkg_free(_db_p);
return NULL;
}
_db_p->tables=NULL;
return _db_p;
}
