Branch data     Line data    Source code

       1                 :            : /* SPDX-License-Identifier: LGPL-2.1+ */
       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         [ +  + ]:         20 : _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_hwdb, sd_hwdb_unref);
      42                 :            : 
      43                 :            : _SD_END_DECLARATIONS;
      44                 :            : 
      45                 :            : #endif