sd_journal_enumerate_fields - Read used field names from the journal

NAME  SYNOPSIS  DESCRIPTION  RETURN VALUE  SEE ALSO 

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NAME

sd_journal_enumerate_fields, sd_journal_restart_fields, SD_JOURNAL_FOREACH_FIELD − Read used field names from the journal

SYNOPSIS

#include <elogind/sd−journal.h>

	int sd_journal_enumerate_fields(sd_journal *j, const char **field);
	void sd_journal_restart_fields(sd_journal *j);
	SD_JOURNAL_FOREACH_FIELD(sd_journal *j, const char *field);

DESCRIPTION

As elogind can not open any systemd journals, the functions sd_journal_enumerate_fields(), sd_journal_restart_fields() and the macro SD_JOURNAL_FOREACH_FIELD() do nothing.

RETURN VALUE

sd_journal_enumerate_fields() always returns 0.

sd_journal_restart_fields() returns nothing.

SEE ALSO

elogind(8), elogind.journal-fields(7),

sd_journal_open(3), sd_journal_query_unique(3), sd_journal_get_data(3), sd_journal_add_match(3)

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