Linux Manuals

sd_journal_get_cutoff_realtime_usec, sd_journal_get_cutoff_monotonic_usec – Read cut-off timestamps from the current journal entry Synopsis #include <systemd/sd-journal.h> int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to); int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to); Description sd_journal_get_cutoff_realtime_usec() retrieves the realtime (wallclock) timestamps of the first and last entries accessible in the journal. It takes three arguments: the journal context object…

sd_journal_get_cutoff_realtime_usec, sd_journal_get_cutoff_monotonic_usec – Read cut-off timestamps from the current journal entry Synopsis #include <systemd/sd-journal.h> int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to); int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to); Description sd_journal_get_cutoff_realtime_usec() retrieves the realtime (wallclock) timestamps of the first and last entries accessible in the journal. It takes three arguments: the journal context object…

sd_journal_get_cursor, sd_journal_test_cursor – Get cursor string for or test cursor string against the current journal entry Synopsis #include <systemd/sd-journal.h> int sd_journal_get_cursor(sd_journal *j, char **cursor); int sd_journal_test_cursor(sd_journal *j, const char *cursor); Description sd_journal_get_cursor() returns a cursor string for the current journal entry. A cursor is a serialization of the current journal position formatted as text. The…

sd_journal_get_catalog, sd_journal_get_catalog_for_message_id – Retrieve message catalog entry Synopsis #include <systemd/sd-journal.h> int sd_journal_get_catalog(sd_journal *j, char **ret); int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret); Description sd_journal_get_catalog() retrieves a message catalog entry for the current journal entry. This will look up an entry in the message catalog by using the "MESSAGE_ID=" field of the current journal entry. Before returning the…

sd_journal_get_catalog, sd_journal_get_catalog_for_message_id – Retrieve message catalog entry Synopsis #include <systemd/sd-journal.h> int sd_journal_get_catalog(sd_journal *j, char **ret); int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret); Description sd_journal_get_catalog() retrieves a message catalog entry for the current journal entry. This will look up an entry in the message catalog by using the "MESSAGE_ID=" field of the current journal entry. Before returning the…

sd_journal_add_match, sd_journal_add_disjunction, sd_journal_add_conjunction, sd_journal_flush_matches – Add or remove entry matches Synopsis #include <systemd/sd-journal.h> int sd_journal_add_match(sd_journal *j, const void *data, size_t size); int sd_journal_add_disjunction(sd_journal *j); int sd_journal_add_conjunction(sd_journal *j); void sd_journal_flush_matches(sd_journal *j); Description sd_journal_add_match() adds a match by which to filter the entries of the journal file. Matches applied with this call will filter what can be…

sd_journal_query_unique, sd_journal_enumerate_unique, sd_journal_restart_unique, SD_JOURNAL_FOREACH_UNIQUE – Read unique data fields from the journal Synopsis #include <systemd/sd-journal.h> int sd_journal_query_unique(sd_journal *j, const char *field); int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *length); void sd_journal_restart_unique(sd_journal *j); SD_JOURNAL_FOREACH_UNIQUE(sd_journal *j, const void *data, size_t length); Description sd_journal_query_unique() queries the journal for all unique values the specified field can take. It takes…

sd_journal_get_data, sd_journal_enumerate_data, sd_journal_restart_data, SD_JOURNAL_FOREACH_DATA, sd_journal_set_data_threshold, sd_journal_get_data_threshold – Read data fields from the current journal entry Synopsis #include <systemd/sd-journal.h> int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *length); int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *length); void sd_journal_restart_data(sd_journal *j); SD_JOURNAL_FOREACH_DATA(sd_journal *j, const void *data, size_t length); int sd_journal_set_data_threshold(sd_journal *j, size_t sz); int sd_journal_get_data_threshold(sd_journal *j,…

sd_journal_open, sd_journal_open_directory, sd_journal_open_files, sd_journal_open_container, sd_journal_close, sd_journal, SD_JOURNAL_LOCAL_ONLY, SD_JOURNAL_RUNTIME_ONLY, SD_JOURNAL_SYSTEM, SD_JOURNAL_CURRENT_USER – Open the system journal for reading Synopsis #include <systemd/sd-journal.h> int sd_journal_open(sd_journal **ret, int flags); int sd_journal_open_directory(sd_journal **ret, const char *path, int flags); int sd_journal_open_files(sd_journal **ret, const char **paths, int flags); int sd_journal_open_container(sd_journal **ret, const char *machine, int flags); void sd_journal_close(sd_journal *j); Description sd_journal_open() opens…

sd_journal_add_match, sd_journal_add_disjunction, sd_journal_add_conjunction, sd_journal_flush_matches – Add or remove entry matches Synopsis #include <systemd/sd-journal.h> int sd_journal_add_match(sd_journal *j, const void *data, size_t size); int sd_journal_add_disjunction(sd_journal *j); int sd_journal_add_conjunction(sd_journal *j); void sd_journal_flush_matches(sd_journal *j); Description sd_journal_add_match() adds a match by which to filter the entries of the journal file. Matches applied with this call will filter what can be…

sd_journal_add_match, sd_journal_add_disjunction, sd_journal_add_conjunction, sd_journal_flush_matches – Add or remove entry matches Synopsis #include <systemd/sd-journal.h> int sd_journal_add_match(sd_journal *j, const void *data, size_t size); int sd_journal_add_disjunction(sd_journal *j); int sd_journal_add_conjunction(sd_journal *j); void sd_journal_flush_matches(sd_journal *j); Description sd_journal_add_match() adds a match by which to filter the entries of the journal file. Matches applied with this call will filter what can be…

sd_journal_add_match, sd_journal_add_disjunction, sd_journal_add_conjunction, sd_journal_flush_matches – Add or remove entry matches Synopsis #include <systemd/sd-journal.h> int sd_journal_add_match(sd_journal *j, const void *data, size_t size); int sd_journal_add_disjunction(sd_journal *j); int sd_journal_add_conjunction(sd_journal *j); void sd_journal_flush_matches(sd_journal *j); Description sd_journal_add_match() adds a match by which to filter the entries of the journal file. Matches applied with this call will filter what can be…

sd_journal_open, sd_journal_open_directory, sd_journal_open_files, sd_journal_open_container, sd_journal_close, sd_journal, SD_JOURNAL_LOCAL_ONLY, SD_JOURNAL_RUNTIME_ONLY, SD_JOURNAL_SYSTEM, SD_JOURNAL_CURRENT_USER – Open the system journal for reading Synopsis #include <systemd/sd-journal.h> int sd_journal_open(sd_journal **ret, int flags); int sd_journal_open_directory(sd_journal **ret, const char *path, int flags); int sd_journal_open_files(sd_journal **ret, const char **paths, int flags); int sd_journal_open_container(sd_journal **ret, const char *machine, int flags); void sd_journal_close(sd_journal *j); Description sd_journal_open() opens…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…

sd_is_fifo, sd_is_socket, sd_is_socket_inet, sd_is_socket_unix, sd_is_mq, sd_is_special – Check the type of a file descriptor Synopsis #include <systemd/sd-daemon.h> int sd_is_fifo(int fd, const char *path); int sd_is_socket(int fd, int family, int type, int listening); int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);…