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/*
* libpinyin
* Library to deal with pinyin.
*
* Copyright (C) 2016 Peng Wu <alexepico@gmail.com>
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef BDB_UTILS_H
#define BDB_UTILS_H
#include <assert.h>
#include <db.h>
namespace pinyin{
inline u_int32_t attach_options(guint32 flags) {
u_int32_t db_flags = 0;
if (flags & ATTACH_READONLY)
db_flags |= DB_RDONLY;
if (flags & ATTACH_READWRITE)
assert(!(flags & ATTACH_READONLY));
if (flags & ATTACH_CREATE)
db_flags |= DB_CREATE;
return db_flags;
}
inline bool copy_bdb(DB * srcdb, DB * destdb) {
int ret = 0;
DBC * cursorp = NULL;
DBT key, data;
/* Get a cursor */
srcdb->cursor(srcdb, NULL, &cursorp, 0);
if (NULL == cursorp)
return false;
/* Initialize our DBTs. */
memset(&key, 0, sizeof(DBT));
memset(&data, 0, sizeof(DBT));
/* Iterate over the database, retrieving each record in turn. */
while ((ret = cursorp->c_get(cursorp, &key, &data, DB_NEXT)) == 0) {
ret = destdb->put(destdb, NULL, &key, &data, 0);
assert(0 == ret);
}
assert(DB_NOTFOUND == ret);
/* Cursors must be closed */
if ( cursorp != NULL )
cursorp->c_close(cursorp);
return true;
}
};
#endif
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