1 /* SPDX-License-Identifier: LGPL-2.1-or-later */ 2 #ifndef foosdhwdbhfoo 3 #define foosdhwdbhfoo 4 5 /*** 6 systemd is free software; you can redistribute it and/or modify it 7 under the terms of the GNU Lesser General Public License as published by 8 the Free Software Foundation; either version 2.1 of the License, or 9 (at your option) any later version. 10 11 systemd is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public License 17 along with systemd; If not, see <http://www.gnu.org/licenses/>. 18 ***/ 19 20 #include "_sd-common.h" 21 22 _SD_BEGIN_DECLARATIONS; 23 24 typedef struct sd_hwdb sd_hwdb; 25 26 sd_hwdb *sd_hwdb_ref(sd_hwdb *hwdb); 27 sd_hwdb *sd_hwdb_unref(sd_hwdb *hwdb); 28 29 int sd_hwdb_new(sd_hwdb **ret); 30 31 int sd_hwdb_get(sd_hwdb *hwdb, const char *modalias, const char *key, const char **value); 32 33 int sd_hwdb_seek(sd_hwdb *hwdb, const char *modalias); 34 int sd_hwdb_enumerate(sd_hwdb *hwdb, const char **key, const char **value); 35 36 /* the inverse condition avoids ambiguity of dangling 'else' after the macro */ 37 #define SD_HWDB_FOREACH_PROPERTY(hwdb, modalias, key, value) \ 38 if (sd_hwdb_seek(hwdb, modalias) < 0) { } \ 39 else while (sd_hwdb_enumerate(hwdb, &(key), &(value)) > 0) 40 41 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_hwdb, sd_hwdb_unref); 42 43 _SD_END_DECLARATIONS; 44 45 #endif 46