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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/libsystemd/sd-device/device-util.h | |
parent | Initial commit. (diff) | |
download | systemd-b750101eb236130cf056c675997decbac904cc49.tar.xz systemd-b750101eb236130cf056c675997decbac904cc49.zip |
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libsystemd/sd-device/device-util.h')
-rw-r--r-- | src/libsystemd/sd-device/device-util.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/libsystemd/sd-device/device-util.h b/src/libsystemd/sd-device/device-util.h new file mode 100644 index 0000000..f139e11 --- /dev/null +++ b/src/libsystemd/sd-device/device-util.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <stdbool.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include "sd-device.h" + +#include "log.h" +#include "macro.h" + +#define device_unref_and_replace(a, b) \ + unref_and_replace_full(a, b, sd_device_ref, sd_device_unref) + +#define FOREACH_DEVICE_PROPERTY(device, key, value) \ + for (key = sd_device_get_property_first(device, &(value)); \ + key; \ + key = sd_device_get_property_next(device, &(value))) + +#define FOREACH_DEVICE_TAG(device, tag) \ + for (tag = sd_device_get_tag_first(device); \ + tag; \ + tag = sd_device_get_tag_next(device)) + +#define FOREACH_DEVICE_CURRENT_TAG(device, tag) \ + for (tag = sd_device_get_current_tag_first(device); \ + tag; \ + tag = sd_device_get_current_tag_next(device)) + +#define FOREACH_DEVICE_SYSATTR(device, attr) \ + for (attr = sd_device_get_sysattr_first(device); \ + attr; \ + attr = sd_device_get_sysattr_next(device)) + +#define FOREACH_DEVICE_DEVLINK(device, devlink) \ + for (devlink = sd_device_get_devlink_first(device); \ + devlink; \ + devlink = sd_device_get_devlink_next(device)) + +#define _FOREACH_DEVICE_CHILD(device, child, suffix_ptr) \ + for (child = sd_device_get_child_first(device, suffix_ptr); \ + child; \ + child = sd_device_get_child_next(device, suffix_ptr)) + +#define FOREACH_DEVICE_CHILD(device, child) \ + _FOREACH_DEVICE_CHILD(device, child, NULL) + +#define FOREACH_DEVICE_CHILD_WITH_SUFFIX(device, child, suffix) \ + _FOREACH_DEVICE_CHILD(device, child, &suffix) + +#define FOREACH_DEVICE(enumerator, device) \ + for (device = sd_device_enumerator_get_device_first(enumerator); \ + device; \ + device = sd_device_enumerator_get_device_next(enumerator)) + +#define FOREACH_SUBSYSTEM(enumerator, device) \ + for (device = sd_device_enumerator_get_subsystem_first(enumerator); \ + device; \ + device = sd_device_enumerator_get_subsystem_next(enumerator)) + +#define log_device_full_errno_zerook(device, level, error, ...) \ + ({ \ + const char *_sysname = NULL; \ + sd_device *_d = (device); \ + int _level = (level), _e = (error); \ + \ + if (_d && _unlikely_(log_get_max_level() >= LOG_PRI(_level))) \ + (void) sd_device_get_sysname(_d, &_sysname); \ + log_object_internal(_level, _e, PROJECT_FILE, __LINE__, __func__, \ + _sysname ? "DEVICE=" : NULL, _sysname, \ + NULL, NULL, __VA_ARGS__); \ + }) + +#define log_device_full_errno(device, level, error, ...) \ + ({ \ + int _error = (error); \ + ASSERT_NON_ZERO(_error); \ + log_device_full_errno_zerook(device, level, _error, __VA_ARGS__); \ + }) + +#define log_device_full(device, level, ...) (void) log_device_full_errno_zerook(device, level, 0, __VA_ARGS__) + +#define log_device_debug(device, ...) log_device_full(device, LOG_DEBUG, __VA_ARGS__) +#define log_device_info(device, ...) log_device_full(device, LOG_INFO, __VA_ARGS__) +#define log_device_notice(device, ...) log_device_full(device, LOG_NOTICE, __VA_ARGS__) +#define log_device_warning(device, ...) log_device_full(device, LOG_WARNING, __VA_ARGS__) +#define log_device_error(device, ...) log_device_full(device, LOG_ERR, __VA_ARGS__) + +#define log_device_debug_errno(device, error, ...) log_device_full_errno(device, LOG_DEBUG, error, __VA_ARGS__) +#define log_device_info_errno(device, error, ...) log_device_full_errno(device, LOG_INFO, error, __VA_ARGS__) +#define log_device_notice_errno(device, error, ...) log_device_full_errno(device, LOG_NOTICE, error, __VA_ARGS__) +#define log_device_warning_errno(device, error, ...) log_device_full_errno(device, LOG_WARNING, error, __VA_ARGS__) +#define log_device_error_errno(device, error, ...) log_device_full_errno(device, LOG_ERR, error, __VA_ARGS__) + +int devname_from_devnum(mode_t mode, dev_t devnum, char **ret); +static inline int devname_from_stat_rdev(const struct stat *st, char **ret) { + assert(st); + return devname_from_devnum(st->st_mode, st->st_rdev, ret); +} +int device_open_from_devnum(mode_t mode, dev_t devnum, int flags, char **ret); |