diff options
Diffstat (limited to 'src/systemd/sd-device.h')
-rw-r--r-- | src/systemd/sd-device.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/systemd/sd-device.h b/src/systemd/sd-device.h new file mode 100644 index 0000000..e3d647f --- /dev/null +++ b/src/systemd/sd-device.h @@ -0,0 +1,167 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#ifndef foosddevicehfoo +#define foosddevicehfoo + +/*** + 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 <https://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <inttypes.h> +#include <sys/stat.h> +#include <sys/sysmacros.h> +#include <sys/types.h> + +#include "sd-event.h" +#include "sd-id128.h" + +#include "_sd-common.h" + +_SD_BEGIN_DECLARATIONS; + +typedef struct sd_device sd_device; +typedef struct sd_device_enumerator sd_device_enumerator; +typedef struct sd_device_monitor sd_device_monitor; + +__extension__ typedef enum sd_device_action_t { + SD_DEVICE_ADD, + SD_DEVICE_REMOVE, + SD_DEVICE_CHANGE, + SD_DEVICE_MOVE, + SD_DEVICE_ONLINE, + SD_DEVICE_OFFLINE, + SD_DEVICE_BIND, + SD_DEVICE_UNBIND, + _SD_DEVICE_ACTION_MAX, + _SD_DEVICE_ACTION_INVALID = -EINVAL, + _SD_ENUM_FORCE_S64(DEVICE_ACTION) +} sd_device_action_t; + +/* callback */ + +typedef int (*sd_device_monitor_handler_t)(sd_device_monitor *m, sd_device *device, void *userdata); + +/* device */ + +sd_device *sd_device_ref(sd_device *device); +sd_device *sd_device_unref(sd_device *device); + +int sd_device_new_from_syspath(sd_device **ret, const char *syspath); +int sd_device_new_from_devnum(sd_device **ret, char type, dev_t devnum); +int sd_device_new_from_subsystem_sysname(sd_device **ret, const char *subsystem, const char *sysname); +int sd_device_new_from_device_id(sd_device **ret, const char *id); +int sd_device_new_from_stat_rdev(sd_device **ret, const struct stat *st); +int sd_device_new_from_devname(sd_device **ret, const char *devname); +int sd_device_new_from_path(sd_device **ret, const char *path); +int sd_device_new_from_ifname(sd_device **ret, const char *ifname); +int sd_device_new_from_ifindex(sd_device **ret, int ifindex); + +int sd_device_new_child(sd_device **ret, sd_device *device, const char *suffix); + +int sd_device_get_parent(sd_device *child, sd_device **ret); +int sd_device_get_parent_with_subsystem_devtype(sd_device *child, const char *subsystem, const char *devtype, sd_device **ret); + +int sd_device_get_syspath(sd_device *device, const char **ret); +int sd_device_get_subsystem(sd_device *device, const char **ret); +int sd_device_get_devtype(sd_device *device, const char **ret); +int sd_device_get_devnum(sd_device *device, dev_t *devnum); +int sd_device_get_ifindex(sd_device *device, int *ifindex); +int sd_device_get_driver(sd_device *device, const char **ret); +int sd_device_get_devpath(sd_device *device, const char **ret); +int sd_device_get_devname(sd_device *device, const char **ret); +int sd_device_get_sysname(sd_device *device, const char **ret); +int sd_device_get_sysnum(sd_device *device, const char **ret); +int sd_device_get_action(sd_device *device, sd_device_action_t *ret); +int sd_device_get_seqnum(sd_device *device, uint64_t *ret); +int sd_device_get_diskseq(sd_device *device, uint64_t *ret); + +int sd_device_get_is_initialized(sd_device *device); +int sd_device_get_usec_initialized(sd_device *device, uint64_t *ret); +int sd_device_get_usec_since_initialized(sd_device *device, uint64_t *ret); + +const char *sd_device_get_tag_first(sd_device *device); +const char *sd_device_get_tag_next(sd_device *device); +const char *sd_device_get_current_tag_first(sd_device *device); +const char *sd_device_get_current_tag_next(sd_device *device); +const char *sd_device_get_devlink_first(sd_device *device); +const char *sd_device_get_devlink_next(sd_device *device); +const char *sd_device_get_property_first(sd_device *device, const char **value); +const char *sd_device_get_property_next(sd_device *device, const char **value); +const char *sd_device_get_sysattr_first(sd_device *device); +const char *sd_device_get_sysattr_next(sd_device *device); +sd_device *sd_device_get_child_first(sd_device *device, const char **ret_suffix); +sd_device *sd_device_get_child_next(sd_device *device, const char **ret_suffix); + +int sd_device_has_tag(sd_device *device, const char *tag); +int sd_device_has_current_tag(sd_device *device, const char *tag); +int sd_device_get_property_value(sd_device *device, const char *key, const char **value); +int sd_device_get_trigger_uuid(sd_device *device, sd_id128_t *ret); +int sd_device_get_sysattr_value(sd_device *device, const char *sysattr, const char **_value); + +int sd_device_set_sysattr_value(sd_device *device, const char *sysattr, const char *value); +int sd_device_set_sysattr_valuef(sd_device *device, const char *sysattr, const char *format, ...) _sd_printf_(3, 4); +int sd_device_trigger(sd_device *device, sd_device_action_t action); +int sd_device_trigger_with_uuid(sd_device *device, sd_device_action_t action, sd_id128_t *ret_uuid); +int sd_device_open(sd_device *device, int flags); + +/* device enumerator */ + +int sd_device_enumerator_new(sd_device_enumerator **ret); +sd_device_enumerator *sd_device_enumerator_ref(sd_device_enumerator *enumerator); +sd_device_enumerator *sd_device_enumerator_unref(sd_device_enumerator *enumerator); + +sd_device *sd_device_enumerator_get_device_first(sd_device_enumerator *enumerator); +sd_device *sd_device_enumerator_get_device_next(sd_device_enumerator *enumerator); +sd_device *sd_device_enumerator_get_subsystem_first(sd_device_enumerator *enumerator); +sd_device *sd_device_enumerator_get_subsystem_next(sd_device_enumerator *enumerator); + +int sd_device_enumerator_add_match_subsystem(sd_device_enumerator *enumerator, const char *subsystem, int match); +int sd_device_enumerator_add_match_sysattr(sd_device_enumerator *enumerator, const char *sysattr, const char *value, int match); +int sd_device_enumerator_add_match_property(sd_device_enumerator *enumerator, const char *property, const char *value); +int sd_device_enumerator_add_match_sysname(sd_device_enumerator *enumerator, const char *sysname); +int sd_device_enumerator_add_nomatch_sysname(sd_device_enumerator *enumerator, const char *sysname); +int sd_device_enumerator_add_match_tag(sd_device_enumerator *enumerator, const char *tag); +int sd_device_enumerator_add_match_parent(sd_device_enumerator *enumerator, sd_device *parent); +int sd_device_enumerator_allow_uninitialized(sd_device_enumerator *enumerator); + +/* device monitor */ + +int sd_device_monitor_new(sd_device_monitor **ret); +sd_device_monitor *sd_device_monitor_ref(sd_device_monitor *m); +sd_device_monitor *sd_device_monitor_unref(sd_device_monitor *m); + +int sd_device_monitor_set_receive_buffer_size(sd_device_monitor *m, size_t size); +int sd_device_monitor_attach_event(sd_device_monitor *m, sd_event *event); +int sd_device_monitor_detach_event(sd_device_monitor *m); +sd_event *sd_device_monitor_get_event(sd_device_monitor *m); +sd_event_source *sd_device_monitor_get_event_source(sd_device_monitor *m); +int sd_device_monitor_set_description(sd_device_monitor *m, const char *description); +int sd_device_monitor_get_description(sd_device_monitor *m, const char **ret); +int sd_device_monitor_start(sd_device_monitor *m, sd_device_monitor_handler_t callback, void *userdata); +int sd_device_monitor_stop(sd_device_monitor *m); + +int sd_device_monitor_filter_add_match_subsystem_devtype(sd_device_monitor *m, const char *subsystem, const char *devtype); +int sd_device_monitor_filter_add_match_tag(sd_device_monitor *m, const char *tag); +int sd_device_monitor_filter_add_match_sysattr(sd_device_monitor *m, const char *sysattr, const char *value, int match); +int sd_device_monitor_filter_add_match_parent(sd_device_monitor *m, sd_device *device, int match); +int sd_device_monitor_filter_update(sd_device_monitor *m); +int sd_device_monitor_filter_remove(sd_device_monitor *m); + +_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device, sd_device_unref); +_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device_enumerator, sd_device_enumerator_unref); +_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device_monitor, sd_device_monitor_unref); + +_SD_END_DECLARATIONS; + +#endif |