journalctl: be smarter about journal error checks

There are many ways in which we can get those checks wrong, so it is
better to warn and then error out on a real access failure.

The error messages are wrapped to <80 lines, because their primary
use is to be displayed in the terminal, and it is easier to read them
this way. Reading them in the journal can be a bit trickier, but
this is a bug in logs-show.c.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/journal/journal-internal.h b/src/journal/journal-internal.h
index 97de0e75f..bc9e44d42 100644
--- a/src/journal/journal-internal.h
+++ b/src/journal/journal-internal.h
@@ -30,6 +30,7 @@
 #include "journal-def.h"
 #include "list.h"
 #include "hashmap.h"
+#include "set.h"
 #include "journal-file.h"
 
 typedef struct Match Match;
@@ -123,6 +124,8 @@ struct sd_journal {
         bool on_network;
 
         size_t data_threshold;
+
+        Set *errors;
 };
 
 char *journal_make_match_string(sd_journal *j);