82 lines
3.4 KiB
C
82 lines
3.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#if HAVE_SYS_SDT_H
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#define SDT_USE_VARIADIC
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#include <sys/sdt.h>
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#endif
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#include "sd-device.h"
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#include "time-util.h"
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#define UDEV_NAME_SIZE 512
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#define UDEV_PATH_SIZE 1024
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#define UDEV_LINE_SIZE 16384
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typedef enum ResolveNameTiming {
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RESOLVE_NAME_NEVER,
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RESOLVE_NAME_LATE,
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RESOLVE_NAME_EARLY,
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_RESOLVE_NAME_TIMING_MAX,
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_RESOLVE_NAME_TIMING_INVALID = -EINVAL,
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} ResolveNameTiming;
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ResolveNameTiming resolve_name_timing_from_string(const char *s) _pure_;
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const char *resolve_name_timing_to_string(ResolveNameTiming i) _const_;
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int udev_parse_config_full(
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unsigned *ret_children_max,
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usec_t *ret_exec_delay_usec,
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usec_t *ret_event_timeout_usec,
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ResolveNameTiming *ret_resolve_name_timing,
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int *ret_timeout_signal);
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static inline int udev_parse_config(void) {
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return udev_parse_config_full(NULL, NULL, NULL, NULL, NULL);
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}
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int device_wait_for_initialization(sd_device *device, const char *subsystem, usec_t deadline, sd_device **ret);
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int device_wait_for_devlink(const char *path, const char *subsystem, usec_t deadline, sd_device **ret);
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int device_is_renaming(sd_device *dev);
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bool device_for_action(sd_device *dev, sd_device_action_t action);
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void log_device_uevent(sd_device *device, const char *str);
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int udev_rule_parse_value(char *str, char **ret_value, char **ret_endpos);
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size_t udev_replace_whitespace(const char *str, char *to, size_t len);
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size_t udev_replace_ifname(char *str);
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size_t udev_replace_chars(char *str, const char *allow);
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int udev_resolve_subsys_kernel(const char *string, char *result, size_t maxsize, bool read_value);
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int udev_queue_is_empty(void);
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int udev_queue_init(void);
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#if HAVE_SYS_SDT_H
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/* Each trace point can have different number of additional arguments. Note that when the macro is used only
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* additional arguments are listed in the macro invocation!
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*
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* Default arguments for each trace point are as follows:
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* - arg0 - action
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* - arg1 - sysname
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* - arg2 - syspath
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* - arg3 - subsystem
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*/
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#define DEVICE_TRACE_POINT(name, dev, ...) \
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do { \
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PROTECT_ERRNO; \
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const char *_n = NULL, *_p = NULL, *_s = NULL; \
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sd_device *_d = (dev); \
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sd_device_action_t _a = _SD_DEVICE_ACTION_INVALID; \
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(void) sd_device_get_action(_d, &_a); \
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(void) sd_device_get_sysname(_d, &_n); \
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(void) sd_device_get_syspath(_d, &_p); \
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(void) sd_device_get_subsystem(_d, &_s); \
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STAP_PROBEV(udev, name, device_action_to_string(_a), _n, _p, _s __VA_OPT__(,) __VA_ARGS__);\
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} while(false);
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#else
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#define DEVICE_TRACE_POINT(name, dev, ...) ((void) 0)
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#endif
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