sd-journal: introduce has_runtime_files and has_persistent_files

Also introduce sd_journal_has_runtime_files() and
sd_journal_has_persistent_files() to the public API. These functions
can be used to easily find out if the open journal files are runtime
and/or persistent.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/journal/journal-internal.h b/src/journal/journal-internal.h
index 9ff4fea7fb..fa5ca11636 100644
--- a/src/journal/journal-internal.h
+++ b/src/journal/journal-internal.h
@@ -115,6 +115,8 @@ struct sd_journal {
                                   removed, and there were no more
                                   files, so sd_j_enumerate_unique
                                   will return a value equal to 0. */
+        bool has_runtime_files:1;
+        bool has_persistent_files:1;
 
         size_t data_threshold;