section 3 · Library functions 📚

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S (continued)

sd_event_get_exit_on_idle(3)Enable event loop exit-on-idle support✨
sd_event_get_fd(3)Obtain a file descriptor to poll for event loop events✨
sd_event_get_iteration(3)Low-level event loop operations✨
sd_event_get_state(3)Low-level event loop operations✨
sd_event_get_tid(3)Acquire and release an event loop object✨
sd_event_get_watchdog(3)Enable event loop watchdog support✨
sd_event_handler_t(3)Add static event sources to an event loop✨
SD_EVENT_INITIAL(3)Low-level event loop operations✨
sd_event_inotify_handler_t(3)Add an "inotify" file system inode event source to an event loop✨
sd_event_io_handler_t(3)Add an I/O event source to an event loop✨
sd_event_loop(3)Run an event loop✨
sd_event_new(3)Acquire and release an event loop object✨
sd_event_now(3)Retrieve current event loop iteration timestamp✨
SD_EVENT_OFF(3)Enable or disable event sources✨
SD_EVENT_ON(3)Enable or disable event sources✨
SD_EVENT_ONESHOT(3)Enable or disable event sources✨
SD_EVENT_PENDING(3)Low-level event loop operations✨
sd_event_prepare(3)Low-level event loop operations✨
SD_EVENT_PREPARING(3)Low-level event loop operations✨
SD_EVENT_PRIORITY_IDLE(3)Set or retrieve the priority of event sources✨
SD_EVENT_PRIORITY_IMPORTANT(3)Set or retrieve the priority of event sources✨
SD_EVENT_PRIORITY_NORMAL(3)Set or retrieve the priority of event sources✨
sd_event_ref(3)Acquire and release an event loop object✨
sd_event_run(3)Run an event loop✨
SD_EVENT_RUNNING(3)Low-level event loop operations✨
sd_event_set_exit_on_idle(3)Enable event loop exit-on-idle support✨
sd_event_set_signal_exit(3)Automatically leave event loop on SIGINT and SIGTERM✨
sd_event_set_watchdog(3)Enable event loop watchdog support✨
sd_event_signal_handler_t(3)Add a UNIX process signal event source to an event loop✨
SD_EVENT_SIGNAL_PROCMASK(3)Add a UNIX process signal event source to an event loop✨
sd_event_source(3)Add an I/O event source to an event loop✨
sd_event_source_disable_unref(3)Increase or decrease event source reference counters✨
sd_event_source_disable_unrefp(3)Increase or decrease event source reference counters✨
sd_event_source_get_child_pid(3)Add a child process state change event source to an event loop✨
sd_event_source_get_child_pidfd(3)Add a child process state change event source to an event loop✨
sd_event_source_get_child_pidfd_own(3)Add a child process state change event source to an event loop✨
sd_event_source_get_child_process_own(3)Add a child process state change event source to an event loop✨
sd_event_source_get_description(3)Set or retrieve descriptive names of event sources✨
sd_event_source_get_destroy_callback(3)Define the callback function for resource cleanup✨
sd_event_source_get_enabled(3)Enable or disable event sources✨
sd_event_source_get_event(3)Retrieve the event loop of an event source✨
sd_event_source_get_exit_on_failure(3)Set or retrieve the exit-on-failure feature of event sources✨
sd_event_source_get_floating(3)Set or retrieve 'floating' state of event sources✨
sd_event_source_get_inotify_mask(3)Add an "inotify" file system inode event source to an event loop✨
sd_event_source_get_inotify_path(3)Add an "inotify" file system inode event source to an event loop✨
sd_event_source_get_io_events(3)Add an I/O event source to an event loop✨
sd_event_source_get_io_fd(3)Add an I/O event source to an event loop✨
sd_event_source_get_io_fd_own(3)Add an I/O event source to an event loop✨
sd_event_source_get_io_revents(3)Add an I/O event source to an event loop✨
sd_event_source_get_pending(3)Determine pending state of event sources✨
sd_event_source_get_priority(3)Set or retrieve the priority of event sources✨
sd_event_source_get_ratelimit(3)Configure rate limiting on event sources✨
sd_event_source_get_signal(3)Add a UNIX process signal event source to an event loop✨
sd_event_source_get_time(3)Add a timer event source to an event loop✨
sd_event_source_get_time_accuracy(3)Add a timer event source to an event loop✨
sd_event_source_get_time_clock(3)Add a timer event source to an event loop✨
sd_event_source_get_userdata(3)Set or retrieve user data pointer of event sources✨
sd_event_source_is_ratelimited(3)Configure rate limiting on event sources✨
sd_event_source_leave_ratelimit(3)Configure rate limiting on event sources✨
sd_event_source_ref(3)Increase or decrease event source reference counters✨
sd_event_source_send_child_signal(3)Add a child process state change event source to an event loop✨
sd_event_source_set_child_pidfd_own(3)Add a child process state change event source to an event loop✨
sd_event_source_set_child_process_own(3)Add a child process state change event source to an event loop✨
sd_event_source_set_cpu_pressure_period(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_source_set_cpu_pressure_type(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_source_set_description(3)Set or retrieve descriptive names of event sources✨
sd_event_source_set_destroy_callback(3)Define the callback function for resource cleanup✨
sd_event_source_set_enabled(3)Enable or disable event sources✨
sd_event_source_set_exit_on_failure(3)Set or retrieve the exit-on-failure feature of event sources✨
sd_event_source_set_floating(3)Set or retrieve 'floating' state of event sources✨
sd_event_source_set_io_events(3)Add an I/O event source to an event loop✨
sd_event_source_set_io_fd(3)Add an I/O event source to an event loop✨
sd_event_source_set_io_fd_own(3)Add an I/O event source to an event loop✨
sd_event_source_set_io_pressure_period(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_source_set_io_pressure_type(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_source_set_memory_pressure_period(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_source_set_memory_pressure_type(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_source_set_prepare(3)Set a preparation callback for event sources✨
sd_event_source_set_priority(3)Set or retrieve the priority of event sources✨
sd_event_source_set_ratelimit(3)Configure rate limiting on event sources✨
sd_event_source_set_ratelimit_expire_callback(3)Configure rate limiting on event sources✨
sd_event_source_set_time(3)Add a timer event source to an event loop✨
sd_event_source_set_time_accuracy(3)Add a timer event source to an event loop✨
sd_event_source_set_time_relative(3)Add a timer event source to an event loop✨
sd_event_source_set_userdata(3)Set or retrieve user data pointer of event sources✨
sd_event_source_unref(3)Increase or decrease event source reference counters✨
sd_event_source_unrefp(3)Increase or decrease event source reference counters✨
sd_event_time_handler_t(3)Add a timer event source to an event loop✨
sd_event_trim_memory(3)Add and configure an event source for memory, CPU, or IO pressure notifications✨
sd_event_unref(3)Acquire and release an event loop object✨
sd_event_unrefp(3)Acquire and release an event loop object✨
sd_event_wait(3)Low-level event loop operations✨
sd_get_machine_names(3)Determine available seats, sessions, logged in users and virtual machines/containers✨
sd_get_seats(3)Determine available seats, sessions, logged in users and virtual machines/containers✨
sd_get_sessions(3)Determine available seats, sessions, logged in users and virtual machines/containers✨
sd_get_uids(3)Determine available seats, sessions, logged in users and virtual machines/containers✨
sd_hwdb_enumerate(3)Seek to a location in hwdb or access entries✨
SD_HWDB_FOREACH_PROPERTY(3)Seek to a location in hwdb or access entries✨
sd_hwdb_get(3)Seek to a location in hwdb or access entries✨
sd_hwdb_new(3)Create a new hwdb object and create or destroy references to it✨
sd_hwdb_new_from_path(3)Create a new hwdb object and create or destroy references to it✨
sd_hwdb_ref(3)Create a new hwdb object and create or destroy references to it✨
sd_hwdb_seek(3)Seek to a location in hwdb or access entries✨
sd_hwdb_unref(3)Create a new hwdb object and create or destroy references to it✨
SD_ID128_ALLF(3)APIs for processing 128-bit IDs✨
SD_ID128_CONST_STR(3)APIs for processing 128-bit IDs✨
sd_id128_equal(3)APIs for processing 128-bit IDs✨
SD_ID128_FORMAT_STR(3)APIs for processing 128-bit IDs✨
SD_ID128_FORMAT_VAL(3)APIs for processing 128-bit IDs✨
sd_id128_from_string(3)Format or parse 128-bit IDs as strings✨
sd_id128_get_app_specific(3)Retrieve 128-bit IDs✨
sd_id128_get_boot(3)Retrieve 128-bit IDs✨
sd_id128_get_boot_app_specific(3)Retrieve 128-bit IDs✨
sd_id128_get_invocation(3)Retrieve 128-bit IDs✨
sd_id128_get_machine(3)Retrieve 128-bit IDs✨
sd_id128_get_machine_app_specific(3)Retrieve 128-bit IDs✨
sd_id128_in_set(3)APIs for processing 128-bit IDs✨
sd_id128_in_set_sentinel(3)APIs for processing 128-bit IDs✨
sd_id128_in_setv(3)APIs for processing 128-bit IDs✨
sd_id128_is_allf(3)APIs for processing 128-bit IDs✨
sd_id128_is_null(3)APIs for processing 128-bit IDs✨
SD_ID128_MAKE(3)APIs for processing 128-bit IDs✨
SD_ID128_MAKE_STR(3)APIs for processing 128-bit IDs✨
SD_ID128_MAKE_UUID_STR(3)APIs for processing 128-bit IDs✨
SD_ID128_NULL(3)APIs for processing 128-bit IDs✨
sd_id128_randomize(3)Generate 128-bit IDs✨
sd_id128_string_equal(3)APIs for processing 128-bit IDs✨
SD_ID128_STRING_MAX(3)Format or parse 128-bit IDs as strings✨
sd_id128_t(3)APIs for processing 128-bit IDs✨
SD_ID128_TO_STRING(3)Format or parse 128-bit IDs as strings✨
sd_id128_to_string(3)Format or parse 128-bit IDs as strings✨
SD_ID128_TO_UUID_STRING(3)Format or parse 128-bit IDs as strings✨
sd_id128_to_uuid_string(3)Format or parse 128-bit IDs as strings✨
SD_ID128_UUID_FORMAT_STR(3)APIs for processing 128-bit IDs✨
SD_ID128_UUID_STRING_MAX(3)Format or parse 128-bit IDs as strings✨
SD_INFO(3)APIs for new-style daemons✨
sd_is_fifo(3)Check the type of a file descriptor✨
sd_is_mq(3)Check the type of a file descriptor✨
sd_is_socket(3)Check the type of a file descriptor✨
sd_is_socket_inet(3)Check the type of a file descriptor✨
sd_is_socket_sockaddr(3)Check the type of a file descriptor✨
sd_is_socket_unix(3)Check the type of a file descriptor✨
sd_is_special(3)Check the type of a file descriptor✨
sd_journal(3)Open the system journal for reading✨
sd_journal_add_conjunction(3)Add or remove entry matches✨
sd_journal_add_disjunction(3)Add or remove entry matches✨
sd_journal_add_match(3)Add or remove entry matches✨
SD_JOURNAL_ALL_NAMESPACES(3)Open the system journal for reading✨
SD_JOURNAL_APPEND(3)Journal change notification interface✨
sd_journal_close(3)Open the system journal for reading✨
SD_JOURNAL_CURRENT_USER(3)Open the system journal for reading✨
sd_journal_enumerate_available_data(3)Read data fields from the current journal entry✨
sd_journal_enumerate_available_unique(3)Read unique data fields from the journal✨
sd_journal_enumerate_data(3)Read data fields from the current journal entry✨
sd_journal_enumerate_fields(3)Read used field names from the journal✨
sd_journal_enumerate_unique(3)Read unique data fields from the journal✨
sd_journal_flush_matches(3)Add or remove entry matches✨
SD_JOURNAL_FOREACH(3)Advance or set back the read pointer in the journal✨
SD_JOURNAL_FOREACH_BACKWARDS(3)Advance or set back the read pointer in the journal✨
SD_JOURNAL_FOREACH_DATA(3)Read data fields from the current journal entry✨
SD_JOURNAL_FOREACH_FIELD(3)Read used field names from the journal✨
SD_JOURNAL_FOREACH_UNIQUE(3)Read unique data fields from the journal✨
sd_journal_get_catalog(3)Retrieve message catalog entry✨
sd_journal_get_catalog_for_message_id(3)Retrieve message catalog entry✨
sd_journal_get_cursor(3)Get cursor string for or test cursor string against the current journal entry✨
sd_journal_get_cutoff_monotonic_usec(3)Read cut-off timestamps from the current journal entry✨
sd_journal_get_cutoff_realtime_usec(3)Read cut-off timestamps from the current journal entry✨
sd_journal_get_data(3)Read data fields from the current journal entry✨
sd_journal_get_data_threshold(3)Read data fields from the current journal entry✨
sd_journal_get_events(3)Journal change notification interface✨
sd_journal_get_fd(3)Journal change notification interface✨
sd_journal_get_monotonic_usec(3)Read timestamps from the current journal entry✨
sd_journal_get_realtime_usec(3)Read timestamps from the current journal entry✨
sd_journal_get_seqnum(3)Read sequence number from the current journal entry✨
sd_journal_get_timeout(3)Journal change notification interface✨
sd_journal_get_usage(3)Journal disk usage✨
sd_journal_has_persistent_files(3)Query availability of runtime or persistent journal files✨
sd_journal_has_runtime_files(3)Query availability of runtime or persistent journal files✨
SD_JOURNAL_INCLUDE_DEFAULT_NAMESPACE(3)Open the system journal for reading✨
SD_JOURNAL_INVALIDATE(3)Journal change notification interface✨
SD_JOURNAL_LOCAL_ONLY(3)Open the system journal for reading✨
sd_journal_next(3)Advance or set back the read pointer in the journal✨
sd_journal_next_skip(3)Advance or set back the read pointer in the journal✨
SD_JOURNAL_NOP(3)Journal change notification interface✨
sd_journal_open(3)Open the system journal for reading✨
sd_journal_open_directory(3)Open the system journal for reading✨
sd_journal_open_directory_fd(3)Open the system journal for reading✨
sd_journal_open_files(3)Open the system journal for reading✨
sd_journal_open_files_fd(3)Open the system journal for reading✨
sd_journal_open_namespace(3)Open the system journal for reading✨
SD_JOURNAL_OS_ROOT(3)Open the system journal for reading✨
sd_journal_perror(3)Submit log entries to the journal✨
sd_journal_perror_with_location(3)Submit log entries to the journal✨
sd_journal_previous(3)Advance or set back the read pointer in the journal✨
sd_journal_previous_skip(3)Advance or set back the read pointer in the journal✨
sd_journal_print(3)Submit log entries to the journal✨
sd_journal_print_with_location(3)Submit log entries to the journal✨
sd_journal_printv(3)Submit log entries to the journal✨
sd_journal_printv_with_location(3)Submit log entries to the journal✨
sd_journal_process(3)Journal change notification interface✨