journal: if we encounter a corrupted file, rotate and go on

[elogind.git] / src / journal / journal-file.h

diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 664f917bb0e6dfbcce90f7f961a050e3ddbef0e4..4d6e1407711bad50df1d7896f88c0399cbd8df24 100644 (file)
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -24,9 +24,10 @@
 
 #include <inttypes.h>
 
+#include <systemd/sd-id128.h>
+
 #include "journal-def.h"
 #include "util.h"
-#include "sd-id128.h"
 
 typedef struct Window {
         void *ptr;
@@ -45,6 +46,13 @@ enum {
         _WINDOW_MAX
 };
 
+typedef struct JournalMetrics {
+        uint64_t max_use;
+        uint64_t max_size;
+        uint64_t min_size;
+        uint64_t keep_free;
+} JournalMetrics;
+
 typedef struct JournalFile {
         int fd;
         char *path;
@@ -62,6 +70,15 @@ typedef struct JournalFile {
         Window windows[_WINDOW_MAX];
 
         uint64_t current_offset;
+
+        JournalMetrics metrics;
+
+        bool compress;
+
+#ifdef HAVE_XZ
+        void *compress_buffer;
+        uint64_t compress_buffer_size;
+#endif
 } JournalFile;
 
 typedef enum direction {
@@ -72,6 +89,8 @@ typedef enum direction {
 int journal_file_open(const char *fname, int flags, mode_t mode, JournalFile *template, JournalFile **ret);
 void journal_file_close(JournalFile *j);
 
+int journal_file_open_reliably(const char *fname, int flags, mode_t mode, JournalFile *template, JournalFile **ret);
+
 int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Object **ret);
 
 uint64_t journal_file_entry_n_items(Object *o);
@@ -93,10 +112,16 @@ int journal_file_move_to_entry_by_monotonic(JournalFile *f, sd_id128_t boot_id,
 int journal_file_move_to_entry_by_seqnum_for_data(JournalFile *f, uint64_t data_offset, uint64_t seqnum, direction_t direction, Object **ret, uint64_t *offset);
 int journal_file_move_to_entry_by_realtime_for_data(JournalFile *f, uint64_t data_offset, uint64_t realtime, direction_t direction, Object **ret, uint64_t *offset);
 
+int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint64_t p, uint64_t *seqnum, Object **ret, uint64_t *offset);
+
 void journal_file_dump(JournalFile *f);
 
 int journal_file_rotate(JournalFile **f);
 
 int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t min_free);
 
+void journal_file_post_change(JournalFile *f);
+
+void journal_default_metrics(JournalMetrics *m, int fd);
+
 #endif