bdb_sval.c

/* $Id$
 *
 * Copyright (C) 2006-2007 Sippy Software, Inc. <sales@sippysoft.com>
 *
 * This file is part of ser, a free SIP server.
 *
 * ser is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * For a license to use the ser software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    info@iptel.org
 *
 * ser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#include "bdb.h"

int bdb_srow_db2bdb(db_con_t* _h, db_key_t* _k, db_op_t* _op, db_val_t* _v, int _n, bdb_srow_p *_r)
{
        bdb_srow_p      r;
        bdb_table_p     t;
        bdb_column_p    c;

        int             found;
        int             use_key, found_key, key_idx;
        int             i;
        int             c_idx;
        bdb_sval_p      v;

        *_r = NULL;

        if ((t = bdb_find_table(CON_TABLE(_h))) == NULL) {
#ifdef BDB_EXTRA_DEBUG
                LOG(L_ERR, "BDB:bdb_srow_db2bdb: no table in use\n");
#endif
                return -1;
        };

        key_idx = -1;
        use_key = 0;

        /* check if all columns exist */
        for (i = 0; i < _n; i++) {
                found = 0;
                /* key column is always first one */
                for (c = t->cols, found_key = 1; c != NULL; c = c->next, found_key = 0) {
                        if (!strcmp(_k[i], c->name.s)) {
                                found = 1;
                                break;
                        }
                }
                if (found_key == 1) {
                        /* use key only if it is used in clause and operator is '=' */
                        if (!use_key && (_op == NULL || (_op != NULL && !strcmp(_op[i], OP_EQ)))) {
                                key_idx = i;
                                use_key = 1;
                        }
                }
                if (!found) {
                        LOG(L_ERR, "BDB:bdb_srow_db2bdb: column '%s' does not exist\n", _k[i]);
                        return -1;
                }
        }

        r = pkg_malloc(sizeof(*r));
        memset(r, 0, sizeof(*r));

        /* filling data into row */
        for (c = t->cols, c_idx = 0; c != NULL; c = c->next, c_idx++) {
                for (i = 0; i < _n; i++) {
                        if (!strcmp(_k[i], c->name.s)) {
#ifdef BDB_EXTRA_DEBUG
                                LOG(L_NOTICE, "BDB:bdb_srow_db2bdb: filling column '%.*s', c_idx = %0d\n", c->name.len, c->name.s, c_idx);
#endif
                                v = pkg_malloc(sizeof(*v));
                                memset(v, 0, sizeof(*v));

                                v->c_idx = c_idx;

                                bdb_push_sfield(r, v);

                                if (bdb_sfield_db2bdb(v, &_v[i], (!_op) ? NULL : _op[i]) < 0) {
                                        bdb_free_srow(r);
                                        return -1;
                                };

                                if (use_key && i == key_idx) {
                                        bdb_set_skey(r, v);
                                }
                        }
                }
        };

        *_r = r;

        return 0;
};


void bdb_free_srow(bdb_srow_p _r)
{
        if (_r->fields != NULL) {
                bdb_free_sfield_list(_r->fields);
        }

        pkg_free(_r);
};


void bdb_free_sfield(bdb_sval_p _v)
{
        if (!VAL_NULL(&(_v->v))) {
                if (VAL_TYPE(&(_v->v)) == DB_STR || VAL_TYPE(&(_v->v)) == DB_STRING ||
                    VAL_TYPE(&(_v->v)) == DB_BLOB) {
                        pkg_free(VAL_STR(&(_v->v)).s);
                }
        }
        pkg_free(_v);
};


void bdb_free_sfield_list(bdb_sval_p _v)
{
        bdb_sval_p     curr, next;

        for (curr = _v; curr != NULL;) {
                next = curr->next;
                bdb_free_sfield(curr);
                curr = next;
        }
};


void bdb_push_sfield(bdb_srow_p _r, bdb_sval_p _v)
{
        bdb_sval_p      f;

        if (_r->fields == NULL) {
                _r->fields = _v;
                return;
        }
        f = _r->fields;
        while (f->next != NULL) {
                f = f->next;
        }
        f->next = _v;
};


void bdb_set_skey(bdb_srow_p _r, bdb_sval_p _v)
{
        /* NULL is not allowed for primary key */
        if (VAL_NULL(&(_v->v)))
                return;

        switch (VAL_TYPE(&(_v->v))) {
        case DB_INT:
                _r->key.data = &VAL_INT(&(_v->v));
                _r->key.size = sizeof(VAL_INT(&(_v->v)));
                break;
        case DB_FLOAT:
                _r->key.data = &VAL_FLOAT(&(_v->v));
                _r->key.size = sizeof(VAL_FLOAT(&(_v->v)));
                break;
        case DB_DATETIME:
                _r->key.data = &VAL_TIME(&(_v->v));
                _r->key.size = sizeof(VAL_TIME(&(_v->v)));
                break;
        case DB_BLOB:
                _r->key.data = VAL_BLOB(&(_v->v)).s;
                _r->key.size = VAL_BLOB(&(_v->v)).len;
                break;
        case DB_DOUBLE:
                _r->key.data = &VAL_DOUBLE(&(_v->v));
                _r->key.size = sizeof(VAL_DOUBLE(&(_v->v)));
                break;
        case DB_STRING:
                _r->key.data = (void *)VAL_STRING(&(_v->v));
                _r->key.size = strlen(VAL_STRING(&(_v->v))) + 1;
                break;
        case DB_STR:
                _r->key.data = VAL_STR(&(_v->v)).s;
                _r->key.size = VAL_STR(&(_v->v)).len;
                break;
        case DB_BITMAP:
                _r->key.data = &VAL_BITMAP(&(_v->v));
                _r->key.size = sizeof(VAL_BITMAP(&(_v->v)));
                break;
        default:
                LOG(L_ERR, "BDB:bdb_set_skey: unknown column type: %0X\n", VAL_TYPE(&(_v->v)));
                break;
        }

#ifdef BDB_EXTRA_DEBUG
        LOG(L_NOTICE, "BDB:bdb_set_skey: use key '%.*s' (%d bytes)\n", _r->key.size, (char *)_r->key.data, _r->key.size);
#endif
};


int bdb_sfield_db2bdb(bdb_sval_p v, db_val_t* _v, db_op_t _op)
{
        char    *s;

        VAL_NULL(&(v->v)) = VAL_NULL(_v);
        VAL_TYPE(&(v->v)) = VAL_TYPE(_v);

        if (!VAL_NULL(&(v->v))) {
                switch (VAL_TYPE(_v)) {
                case DB_INT:
                        VAL_INT(&(v->v)) = VAL_INT(_v);
                        break;
                case DB_FLOAT:
                        VAL_FLOAT(&(v->v)) = VAL_FLOAT(_v);
                        break;
                case DB_DATETIME:
                        VAL_TIME(&(v->v)) = VAL_TIME(_v);
                        break;
                case DB_BLOB:
                        s = pkg_malloc(VAL_BLOB(_v).len);
                        memcpy(s, VAL_BLOB(_v).s, VAL_BLOB(_v).len);
                        VAL_BLOB(&(v->v)).s = s;
                        VAL_BLOB(&(v->v)).len = VAL_BLOB(_v).len;
                        break;
                case DB_DOUBLE:
                        VAL_DOUBLE(&(v->v)) = VAL_DOUBLE(_v);
                        break;
                case DB_STRING:
                        VAL_STR(&(v->v)).len = strlen(VAL_STRING(_v)) + 1;
                        s = pkg_malloc(VAL_STR(&(v->v)).len);
                        strcpy(s, VAL_STRING(_v));
                        VAL_STRING(&(v->v)) = s;
                        break;
                case DB_STR:
                        s = pkg_malloc(VAL_STR(_v).len);
                        memcpy(s, VAL_STR(_v).s, VAL_STR(_v).len);
                        VAL_STR(&(v->v)).s = s;
                        VAL_STR(&(v->v)).len = VAL_STR(_v).len;
                        break;
                case DB_BITMAP:
                        VAL_BITMAP(&(v->v)) = VAL_BITMAP(_v);
                        break;
                default:
                        LOG(L_ERR, "BDB:bdb_sfield_db2bdb: unknown column type: %0X\n", VAL_TYPE(_v));
                        return -1;
                        break;
                }

                if (!_op || !strcmp(_op, OP_EQ)) {
                        v->op = BDB_OP_EQ;
                } else if (!strcmp(_op, OP_LT)) {
                        v->op = BDB_OP_LT;
                } else if (!strcmp(_op, OP_GT)) {
                        v->op = BDB_OP_GT;
                } else if (!strcmp(_op, OP_LEQ)) {
                        v->op = BDB_OP_LEQ;
                } else if (!strcmp(_op, OP_GEQ)) {
                        v->op = BDB_OP_GEQ;
                } else {
                        LOG(L_ERR, "BDB:sbdb_field_db2bdb: unknown operator: %s\n", _op);
                        return -1;
                }
        }

        return 0;
};