int dbt_cache_print(int _f)
{
dbt_cache_p _dc=NULL;
tbl_cache_p _tbc = NULL;
if(!_cachesem)
return -1;
lock_get(_cachesem);
_dc = *_cachedb;
while(_dc)
{
lock_get(&_dc->sem);
if(_dc->dbp)
{
if(_f)
fprintf(stdout, "\n--- Database [%.*s]\n", _dc->dbp->name.len,
_dc->dbp->name.s);
_tbc = _dc->dbp->tables;
while(_tbc)
{
lock_get(&_tbc->sem);
if(_tbc->dtp)
{
if(_f)
{
fprintf(stdout, "\n----- Table [%.*s]\n",
_tbc->dtp->name.len, _tbc->dtp->name.s);
fprintf(stdout, "------- LA=<%d> FL=<%x> AC=<%d>"
" AV=<%d>\n", _tbc->dtp->mark, _tbc->dtp->flag,
_tbc->dtp->auto_col, _tbc->dtp->auto_val);
dbt_print_table(_tbc->dtp, NULL);
}
else
{
if(_tbc->dtp->flag & DBT_TBFL_MODI)
{
dbt_print_table(_tbc->dtp, &(_dc->dbp->name));
dbt_table_update_flags(_tbc->dtp,DBT_TBFL_MODI,
DBT_FL_UNSET, 0);
}
}
}
lock_release(&_tbc->sem);
_tbc = _tbc->next;
}
}
lock_release(&_dc->sem);
_dc = _dc->next;
}
lock_release(_cachesem);
return 0;
}
int dbt_cache_print(int _f)
{
int i;
dbt_table_p _tbc;
if(!_dbt_cachetbl)
return -1;
for(i=0; i< DBT_CACHETBL_SIZE; i++)
{
lock_get(&_dbt_cachetbl[i].sem);
_tbc = _dbt_cachetbl[i].dtp;
while(_tbc)
{
if(_f)
fprintf(stdout, "\n--- Database [%.*s]\n", _tbc->dbname.len,
_tbc->dbname.s);
if(_f)
{
fprintf(stdout, "\n----- Table [%.*s]\n",
_tbc->name.len, _tbc->name.s);
fprintf(stdout, "------- LA=<%d> FL=<%x> AC=<%d>"
" AV=<%d>\n", _tbc->mark, _tbc->flag,
_tbc->auto_col, _tbc->auto_val);
dbt_print_table(_tbc, NULL);
} else {
if(_tbc->flag & DBT_TBFL_MODI)
{
dbt_print_table(_tbc, &(_tbc->dbname));
dbt_table_update_flags(_tbc,DBT_TBFL_MODI, DBT_FL_UNSET, 0);
}
}
_tbc = _tbc->next;
}
lock_release(&_dbt_cachetbl[i].sem);
}
return 0;
}
tbl_cache_p dbt_db_get_table(dbt_cache_p _dc, str *_s)
{
// dbt_db_p _dbp = NULL;
tbl_cache_p _tbc = NULL;
dbt_table_p _dtp = NULL;
if(!_dc || !_s || !_s->s || _s->len<=0)
return NULL;
lock_get(&_dc->sem);
if(!_dc->dbp)
{
lock_release(&_dc->sem);
return NULL;
}
_tbc = _dc->dbp->tables;
while(_tbc)
{
if(_tbc->dtp)
{
lock_get(&_tbc->sem);
if(_tbc->dtp->name.len == _s->len
&& !strncasecmp(_tbc->dtp->name.s, _s->s, _s->len ))
{
lock_release(&_tbc->sem);
lock_release(&_dc->sem);
return _tbc;
}
lock_release(&_tbc->sem);
}
_tbc = _tbc->next;
}
// new table
_tbc = tbl_cache_new();
if(!_tbc)
{
lock_release(&_dc->sem);
return NULL;
}
_dtp = dbt_load_file(_s, &(_dc->dbp->name));
#ifdef DBT_EXTRA_DEBUG
DBG("DTB:dbt_db_get_table: ---------------\n");
dbt_print_table(_dtp, NULL);
#endif
if(!_dtp)
{
lock_release(&_dc->sem);
return NULL;
}
_tbc->dtp = _dtp;
if(_dc->dbp->tables)
(_dc->dbp->tables)->prev = _tbc;
_tbc->next = _dc->dbp->tables;
_dc->dbp->tables = _tbc;
lock_release(&_dc->sem);
return _tbc;
}
dbt_table_p dbt_db_get_table(dbt_cache_p _dc, str *_s)
{
dbt_table_p _tbc = NULL;
int hash;
int hashidx;
if(!_dbt_cachetbl || !_dc || !_s || !_s->s || _s->len<=0)
return NULL;
hash = core_hash(&_dc->name, _s, DBT_CACHETBL_SIZE);
hashidx = hash % DBT_CACHETBL_SIZE;
lock_get(&_dbt_cachetbl[hashidx].sem);
_tbc = _dbt_cachetbl[hashidx].dtp;
while(_tbc)
{
if(_tbc->hash==hash && _tbc->dbname.len == _dc->name.len
&& _tbc->name.len == _s->len
&& !strncasecmp(_tbc->dbname.s, _dc->name.s, _dc->name.len)
&& !strncasecmp(_tbc->name.s, _s->s, _s->len))
{
/* found - if cache mode or no-change, return */
if(db_mode==0 || dbt_check_mtime(_s, &(_dc->name), &(_tbc->mt))!=1)
{
LM_DBG("cache or mtime succeeded\n");
return _tbc;
}
break;
}
_tbc = _tbc->next;
}
/* new table */
if(_tbc) /* free old one */
{
lock_release(&_dbt_cachetbl[hashidx].sem);
dbt_db_del_table(_dc, _s);
lock_get(&_dbt_cachetbl[hashidx].sem);
}
_tbc = dbt_load_file(_s, &(_dc->name));
#ifdef DBT_EXTRA_DEBUG
LM_DBG("%.*s\n", _s->len, _s->s);
dbt_print_table(_tbc, NULL);
#endif
if(!_tbc)
{
lock_release(&_dbt_cachetbl[hashidx].sem);
return NULL;
}
_tbc->hash = hash;
_tbc->next = _dbt_cachetbl[hashidx].dtp;
if(_dbt_cachetbl[hashidx].dtp)
_dbt_cachetbl[hashidx].dtp->prev = _tbc;
_dbt_cachetbl[hashidx].dtp = _tbc;
/* table is locked */
return _tbc;
}
/*
* Update a row in table
*/
int dbt_update(db_con_t* _h, db_key_t* _k, db_op_t* _o, db_val_t* _v,
db_key_t* _uk, db_val_t* _uv, int _n, int _un)
{
tbl_cache_p _tbc = NULL;
dbt_table_p _dtp = NULL;
dbt_row_p _drp = NULL;
int i;
str stbl;
int *lkey=NULL, *lres=NULL;
if (!_h || !CON_TABLE(_h) || !_uk || !_uv || _un <= 0)
{
#ifdef DBT_EXTRA_DEBUG
LOG(L_ERR, "DBT:dbt_update: Invalid parameter value\n");
#endif
return -1;
}
stbl.s = (char*)CON_TABLE(_h);
stbl.len = strlen(CON_TABLE(_h));
_tbc = dbt_db_get_table(DBT_CON_CONNECTION(_h), &stbl);
if(!_tbc)
{
DBG("DBT:dbt_update: table does not exist!\n");
return -1;
}
lock_get(&_tbc->sem);
_dtp = _tbc->dtp;
if(!_dtp || _dtp->nrcols < _un)
{
DBG("DBT:dbt_update: table not loaded or more values"
" to update than columns!\n");
goto error;
}
if(_k)
{
lkey = dbt_get_refs(_dtp, _k, _n);
if(!lkey)
goto error;
}
lres = dbt_get_refs(_dtp, _uk, _un);
if(!lres)
goto error;
DBG("DBT:dbt_update: ---- \n");
_drp = _dtp->rows;
while(_drp)
{
if(dbt_row_match(_dtp, _drp, lkey, _o, _v, _n))
{ // update fields
for(i=0; i<_un; i++)
{
if(dbt_is_neq_type(_dtp->colv[lres[i]]->type, _uv[i].type))
{
DBG("DBT:dbt_update: incompatible types!\n");
goto error;
}
if(dbt_row_update_val(_drp, &(_uv[i]), _uv[i].type, lres[i]))
{
DBG("DBT:dbt_update: cannot set v[%d] in c[%d]!\n",
i, lres[i]);
goto error;
}
}
}
_drp = _drp->next;
}
dbt_table_update_flags(_dtp, DBT_TBFL_MODI, DBT_FL_SET, 1);
#ifdef DBT_EXTRA_DEBUG
dbt_print_table(_dtp, NULL);
#endif
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
if(lres)
pkg_free(lres);
return 0;
error:
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
if(lres)
pkg_free(lres);
DBG("DBT:dbt_update: error while updating table!\n");
return -1;
}
/*
* Delete a row from table
*/
int dbt_delete(db_con_t* _h, db_key_t* _k, db_op_t* _o, db_val_t* _v, int _n)
{
tbl_cache_p _tbc = NULL;
dbt_table_p _dtp = NULL;
dbt_row_p _drp = NULL, _drp0 = NULL;
int *lkey = NULL;
str stbl;
if (!_h || !CON_TABLE(_h))
{
#ifdef DBT_EXTRA_DEBUG
LOG(L_ERR, "DBT:dbt_delete: Invalid parameter value\n");
#endif
return -1;
}
stbl.s = (char*)CON_TABLE(_h);
stbl.len = strlen(CON_TABLE(_h));
_tbc = dbt_db_get_table(DBT_CON_CONNECTION(_h), &stbl);
if(!_tbc)
{
DBG("DBT:dbt_delete: error loading table <%s>!\n", CON_TABLE(_h));
return -1;
}
lock_get(&_tbc->sem);
_dtp = _tbc->dtp;
if(!_dtp)
{
DBG("DBT:dbt_delete: table does not exist!!\n");
goto error;
}
if(!_k || !_v || _n<=0)
{
#ifdef DBT_EXTRA_DEBUG
LOG(L_ERR, "DBT:dbt_delete: delete all values\n");
#endif
dbt_table_free_rows(_dtp);
lock_release(&_tbc->sem);
return 0;
}
lkey = dbt_get_refs(_dtp, _k, _n);
if(!lkey)
goto error;
_drp = _dtp->rows;
while(_drp)
{
_drp0 = _drp->next;
if(dbt_row_match(_dtp, _drp, lkey, _o, _v, _n))
{
// delete row
DBG("DBT:dbt_delete: deleting a row!\n");
if(_drp->prev)
(_drp->prev)->next = _drp->next;
else
_dtp->rows = _drp->next;
if(_drp->next)
(_drp->next)->prev = _drp->prev;
_dtp->nrrows--;
// free row
dbt_row_free(_dtp, _drp);
}
_drp = _drp0;
}
dbt_table_update_flags(_dtp, DBT_TBFL_MODI, DBT_FL_SET, 1);
#ifdef DBT_EXTRA_DEBUG
dbt_print_table(_dtp, NULL);
#endif
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
return 0;
error:
lock_release(&_tbc->sem);
DBG("DBT:dbt_delete: error deleting from table!\n");
return -1;
}
/*
* Insert a row into table
*/
int dbt_insert(db_con_t* _h, db_key_t* _k, db_val_t* _v, int _n)
{
tbl_cache_p _tbc = NULL;
dbt_table_p _dtp = NULL;
dbt_row_p _drp = NULL;
str stbl;
int *lkey=NULL, i, j;
if (!_h || !CON_TABLE(_h))
{
#ifdef DBT_EXTRA_DEBUG
LOG(L_ERR, "DBT:dbt_insert: Invalid parameter value\n");
#endif
return -1;
}
if(!_k || !_v || _n<=0)
{
#ifdef DBT_EXTRA_DEBUG
DBG("DBT:dbt_insert: no key-value to insert\n");
#endif
return -1;
}
stbl.s = (char*)CON_TABLE(_h);
stbl.len = strlen(CON_TABLE(_h));
_tbc = dbt_db_get_table(DBT_CON_CONNECTION(_h), &stbl);
if(!_tbc)
{
DBG("DBT:db_insert: table does not exist!\n");
return -1;
}
lock_get(&_tbc->sem);
_dtp = _tbc->dtp;
if(!_dtp)
{
DBG("DBT:db_insert: table does not exist!!\n");
goto error;
}
if(_dtp->nrcols<_n)
{
DBG("DBT:db_insert: more values than columns!!\n");
goto error;
}
if(_k)
{
lkey = dbt_get_refs(_dtp, _k, _n);
if(!lkey)
goto error;
}
_drp = dbt_row_new(_dtp->nrcols);
if(!_drp)
{
DBG("DBT:db_insert: no memory for a new row!!\n");
goto error;
}
for(i=0; i<_n; i++)
{
j = (lkey)?lkey[i]:i;
if(dbt_is_neq_type(_dtp->colv[j]->type, _v[i].type))
{
DBG("DBT:db_insert: incompatible types v[%d] - c[%d]!\n", i, j);
goto clean;
}
if(dbt_row_set_val(_drp, &(_v[i]), _v[i].type, j))
{
DBG("DBT:db_insert: cannot set v[%d] in c[%d]!\n", i, j);
goto clean;
}
}
if(dbt_table_add_row(_dtp, _drp))
{
DBG("DBT:db_insert: cannot insert the new row!!\n");
goto clean;
}
#ifdef DBT_EXTRA_DEBUG
dbt_print_table(_dtp, NULL);
#endif
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
DBG("DBT:db_insert: done!\n");
return 0;
error:
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
DBG("DBT:db_insert: error inserting row in table!\n");
return -1;
clean:
lock_release(&_tbc->sem);
if(lkey)
pkg_free(lkey);
if(_drp) // free row
dbt_row_free(_dtp, _drp);
DBG("DBT:db_insert: make clean!\n");
return -1;
}
