common/database.h

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/*
    This file is part of darktable,
    Copyright (C) 2011-2020 darktable developers.
 
    darktable 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.
 
    darktable 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 darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include <glib.h>
#include <sqlite3.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct dt_database_t;
 
struct dt_database_t *dt_database_init(const char *alternative, const gboolean load_data, const gboolean has_gui);
void dt_database_destroy(const struct dt_database_t *);
sqlite3 *dt_database_get(const struct dt_database_t *);
const gchar *dt_database_get_path(const struct dt_database_t *db);
gboolean dt_database_get_lock_acquired(const struct dt_database_t *db);
gboolean dt_database_show_error(const struct dt_database_t *db);
void dt_database_optimize(const struct dt_database_t *);
gboolean dt_database_maybe_maintenance(const struct dt_database_t *db, const gboolean has_gui, const gboolean closing_time);
void dt_database_perform_maintenance(const struct dt_database_t *db);
void dt_database_cleanup_busy_statements(const struct dt_database_t *db);
gboolean dt_database_snapshot(const struct dt_database_t *db);
gboolean dt_database_maybe_snapshot(const struct dt_database_t *db);
char **dt_database_snaps_to_remove(const struct dt_database_t *db);
gchar *dt_database_get_most_recent_snap(const char* db_filename);
 
 
// nested transactions support
void dt_database_start_transaction_debug(const struct dt_database_t *db);
void dt_database_release_transaction_debug(const struct dt_database_t *db);
void dt_database_rollback_transaction(const struct dt_database_t *db);
 
#define dt_database_start_transaction(db) DT_DEBUG_TRACE_WRAPPER(DT_DEBUG_SQL, dt_database_start_transaction_debug, (db))
#define dt_database_release_transaction(db) DT_DEBUG_TRACE_WRAPPER(DT_DEBUG_SQL, dt_database_release_transaction_debug, (db))
 
#ifdef __cplusplus
}
#endif
 
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