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-rw-r--r--src/libsystemd/sd-device/device-util.h101
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);