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Diffstat (limited to 'src/libudev/libudev-hwdb.c')
-rw-r--r-- | src/libudev/libudev-hwdb.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/src/libudev/libudev-hwdb.c b/src/libudev/libudev-hwdb.c deleted file mode 100644 index 98951fb85b..0000000000 --- a/src/libudev/libudev-hwdb.c +++ /dev/null @@ -1,144 +0,0 @@ -/*** - This file is part of systemd. - - Copyright Tom Gundersen <teg@jklm.no> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "libudev-private.h" -#include "sd-hwdb.h" -#include "hwdb-util.h" - -/** - * SECTION:libudev-hwdb - * @short_description: retrieve properties from the hardware database - * - * Libudev hardware database interface. - */ - -/** - * udev_hwdb: - * - * Opaque object representing the hardware database. - */ -struct udev_hwdb { - struct udev *udev; - int refcount; - - sd_hwdb *hwdb; - - struct udev_list properties_list; -}; - -/** - * udev_hwdb_new: - * @udev: udev library context - * - * Create a hardware database context to query properties for devices. - * - * Returns: a hwdb context. - **/ -_public_ struct udev_hwdb *udev_hwdb_new(struct udev *udev) { - _cleanup_hwdb_unref_ sd_hwdb *hwdb_internal = NULL; - struct udev_hwdb *hwdb; - int r; - - assert_return(udev, NULL); - - r = sd_hwdb_new(&hwdb_internal); - if (r < 0) - return NULL; - - hwdb = new0(struct udev_hwdb, 1); - if (!hwdb) - return NULL; - - hwdb->refcount = 1; - hwdb->hwdb = hwdb_internal; - hwdb_internal = NULL; - - udev_list_init(udev, &hwdb->properties_list, true); - - return hwdb; -} - -/** - * udev_hwdb_ref: - * @hwdb: context - * - * Take a reference of a hwdb context. - * - * Returns: the passed enumeration context - **/ -_public_ struct udev_hwdb *udev_hwdb_ref(struct udev_hwdb *hwdb) { - if (!hwdb) - return NULL; - hwdb->refcount++; - return hwdb; -} - -/** - * udev_hwdb_unref: - * @hwdb: context - * - * Drop a reference of a hwdb context. If the refcount reaches zero, - * all resources of the hwdb context will be released. - * - * Returns: #NULL - **/ -_public_ struct udev_hwdb *udev_hwdb_unref(struct udev_hwdb *hwdb) { - if (!hwdb) - return NULL; - hwdb->refcount--; - if (hwdb->refcount > 0) - return NULL; - sd_hwdb_unref(hwdb->hwdb); - udev_list_cleanup(&hwdb->properties_list); - free(hwdb); - return NULL; -} - -/** - * udev_hwdb_get_properties_list_entry: - * @hwdb: context - * @modalias: modalias string - * @flags: (unused) - * - * Lookup a matching device in the hardware database. The lookup key is a - * modalias string, whose formats are defined for the Linux kernel modules. - * Examples are: pci:v00008086d00001C2D*, usb:v04F2pB221*. The first entry - * of a list of retrieved properties is returned. - * - * Returns: a udev_list_entry. - */ -_public_ struct udev_list_entry *udev_hwdb_get_properties_list_entry(struct udev_hwdb *hwdb, const char *modalias, unsigned int flags) { - const char *key, *value; - - if (!hwdb || !modalias) { - errno = EINVAL; - return NULL; - } - - udev_list_cleanup(&hwdb->properties_list); - - SD_HWDB_FOREACH_PROPERTY(hwdb->hwdb, modalias, key, value) { - if (udev_list_entry_add(&hwdb->properties_list, key, value) == NULL) { - errno = ENOMEM; - return NULL; - } - } - - return udev_list_get_entry(&hwdb->properties_list); -} |