recoll/src/index/idxstatus.h

80 lines
2.9 KiB
C++

/* Copyright (C) 2017-2018 J.F.Dockes
* 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 2 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, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _IDXSTATUS_H_INCLUDED_
#define _IDXSTATUS_H_INCLUDED_
#include <string>
// Current status of an indexing operation. This is updated in
// $RECOLL_CONFDIR/idxstatus.txt
class DbIxStatus {
public:
enum Phase {DBIXS_NONE, DBIXS_FILES, DBIXS_FLUSH, DBIXS_PURGE, DBIXS_STEMDB, DBIXS_CLOSING,
DBIXS_MONITOR, DBIXS_DONE};
Phase phase;
std::string fn; // Last file processed
int docsdone; // Documents actually updated
int filesdone; // Files tested (updated or not)
int fileerrors; // Failed files (e.g.: missing input handler).
int dbtotdocs; // Doc count in index at start
// Total files in index.This is actually difficult to compute from
// the index so it's preserved from last indexing
int totfiles;
// Is this indexer a monitoring one? This is a permanent value
// telling if option -m was set, not about what we are currently
// doing
bool hasmonitor{false};
void reset() {
phase = DBIXS_FILES;
fn.erase();
docsdone = filesdone = fileerrors = dbtotdocs = totfiles = 0;
}
DbIxStatus() {reset();}
};
class RclConfig;
extern void readIdxStatus(RclConfig *config, DbIxStatus &status);
/** Callback to say what we're doing. If the update func returns false, we
* stop as soon as possible without corrupting state */
class DbIxStatusUpdater {
public:
DbIxStatusUpdater(const RclConfig *config, bool nox11monitor);
virtual ~DbIxStatusUpdater(){}
DbIxStatusUpdater(const DbIxStatusUpdater&) = delete;
DbIxStatusUpdater& operator=(const DbIxStatusUpdater&) = delete;
enum Incr {IncrNone, IncrDocsDone = 0x1, IncrFilesDone = 0x2, IncrFileErrors = 0x4};
// Change phase/fn and update
virtual bool update(DbIxStatus::Phase phase, const std::string& fn, int incr = IncrNone);
void setMonitor(bool onoff);
void setDbTotDocs(int totdocs);
class Internal;
private:
Internal *m;
};
// We use the updater as a singleton everywhere. It is instanciated in
// idxstatus.cpp. Must be called once with non-null config at first.
extern DbIxStatusUpdater *statusUpdater(RclConfig *config=nullptr, bool nox11monitor=false);
#endif /* _IDXSTATUS_H_INCLUDED_ */