File indexing completed on 2024-04-14 03:49:41

 /*
     This file is part of the KDE Baloo project.
     SPDX-FileCopyrightText: 2015 Vishesh Handa <vhanda@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
 #include "documentiddb.h"
 #include "enginedebug.h"
 
 using namespace Baloo;
 
 DocumentIdDB::DocumentIdDB(MDB_dbi dbi, MDB_txn* txn)
     : m_txn(txn)
     , m_dbi(dbi)
 {
     Q_ASSERT(txn != nullptr);
     Q_ASSERT(dbi != 0);
 }
 
 DocumentIdDB::~DocumentIdDB()
 {
 }
 
 MDB_dbi DocumentIdDB::create(const char* name, MDB_txn* txn)
 {
     MDB_dbi dbi = 0;
     int rc = mdb_dbi_open(txn, name, MDB_CREATE | MDB_INTEGERKEY, &dbi);
     if (rc) {
         qCWarning(ENGINE) << "DocumentIdDB::create" << name << mdb_strerror(rc);
         return 0;
     }
 
     return dbi;
 }
 
 MDB_dbi DocumentIdDB::open(const char* name, MDB_txn* txn)
 {
     MDB_dbi dbi = 0;
     int rc = mdb_dbi_open(txn, name, MDB_INTEGERKEY, &dbi);
     if (rc) {
         qCWarning(ENGINE) << "DocumentIdDB::open" << name << mdb_strerror(rc);
         return 0;
     }
 
     return dbi;
 }
 
 void DocumentIdDB::put(quint64 docId)
 {
     Q_ASSERT(docId > 0);
 
     MDB_val key;
     key.mv_size = sizeof(quint64);
     key.mv_data = static_cast<void*>(&docId);
 
     MDB_val val;
     val.mv_size = 0;
     val.mv_data = nullptr;
 
     int rc = mdb_put(m_txn, m_dbi, &key, &val, 0);
     if (rc) {
         qCWarning(ENGINE) << "DocumentIdDB::put" << mdb_strerror(rc);
     }
 }
 
 bool DocumentIdDB::contains(quint64 docId)
 {
     Q_ASSERT(docId > 0);
 
     MDB_val key;
     key.mv_size = sizeof(quint64);
     key.mv_data = static_cast<void*>(&docId);
 
     MDB_val val{0, nullptr};
     int rc = mdb_get(m_txn, m_dbi, &key, &val);
     if (rc) {
         if (rc != MDB_NOTFOUND) {
             qCDebug(ENGINE) << "DocumentIdDB::contains" << docId << mdb_strerror(rc);
         }
         return false;
     }
 
     return true;
 }
 
 void DocumentIdDB::del(quint64 docId)
 {
     Q_ASSERT(docId > 0);
 
     MDB_val key;
     key.mv_size = sizeof(quint64);
     key.mv_data = static_cast<void*>(&docId);
 
     int rc = mdb_del(m_txn, m_dbi, &key, nullptr);
     if (rc != 0 && rc != MDB_NOTFOUND) {
         qCDebug(ENGINE) << "DocumentIdDB::del" << docId << mdb_strerror(rc);
     }
 }
 
 QVector<quint64> DocumentIdDB::fetchItems(int size)
 {
     Q_ASSERT(size > 0);
 
     MDB_cursor* cursor;
     mdb_cursor_open(m_txn, m_dbi, &cursor);
 
     QVector<quint64> vec;
     vec.reserve(size);
 
     for (int i = 0; i < size; i++) {
         MDB_val key{0, nullptr};
         int rc = mdb_cursor_get(cursor, &key, nullptr, MDB_NEXT);
         if (rc) {
             if (rc != MDB_NOTFOUND) {
                 qCWarning(ENGINE) << "DocumentIdDB::fetchItems" << size << mdb_strerror(rc);
             }
             break;
         }
 
         quint64 id = *(static_cast<quint64*>(key.mv_data));
         vec << id;
     }
     mdb_cursor_close(cursor);
 
     return vec;
 }
 
 uint DocumentIdDB::size()
 {
     MDB_stat stat;
     int rc = mdb_stat(m_txn, m_dbi, &stat);
     if (rc) {
         qCDebug(ENGINE) << "DocumentIdDB::size" << mdb_strerror(rc);
         return 0;
     }
 
     return stat.ms_entries;
 }
 
 QVector<quint64> DocumentIdDB::toTestVector() const
 {
     MDB_cursor* cursor;
     mdb_cursor_open(m_txn, m_dbi, &cursor);
 
     MDB_val key{0, nullptr};
     MDB_val val{0, nullptr};
 
     QVector<quint64> vec;
     while (1) {
         int rc = mdb_cursor_get(cursor, &key, &val, MDB_NEXT);
         if (rc) {
             qCDebug(ENGINE) << "DocumentTimeDB::toTestMap" << mdb_strerror(rc);
             break;
         }
 
         const quint64 id = *(static_cast<quint64*>(key.mv_data));
         vec << id;
     }
 
     mdb_cursor_close(cursor);
     return vec;
 }