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authorLennart Poettering <lennart@poettering.net>2011-11-08 18:20:03 +0100
committerLennart Poettering <lennart@poettering.net>2011-11-08 18:20:03 +0100
commitde190aef08bb267b645205a747762df573b36834 (patch)
tree517b703941012766056f46442d36d93406b55ce9 /src/journal/journal-file.h
parent9b3c575ed90bb1165a192dfae2fb2330baab583c (diff)
journal: implement multiple field matches
Diffstat (limited to 'src/journal/journal-file.h')
-rw-r--r--src/journal/journal-file.h51
1 files changed, 34 insertions, 17 deletions
diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 795a446dc8..664f917bb0 100644
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -28,6 +28,23 @@
#include "util.h"
#include "sd-id128.h"
+typedef struct Window {
+ void *ptr;
+ uint64_t offset;
+ uint64_t size;
+} Window;
+
+enum {
+ WINDOW_UNKNOWN = OBJECT_UNUSED,
+ WINDOW_DATA = OBJECT_DATA,
+ WINDOW_ENTRY = OBJECT_ENTRY,
+ WINDOW_DATA_HASH_TABLE = OBJECT_DATA_HASH_TABLE,
+ WINDOW_FIELD_HASH_TABLE = OBJECT_FIELD_HASH_TABLE,
+ WINDOW_ENTRY_ARRAY = OBJECT_ENTRY_ARRAY,
+ WINDOW_HEADER,
+ _WINDOW_MAX
+};
+
typedef struct JournalFile {
int fd;
char *path;
@@ -36,20 +53,13 @@ typedef struct JournalFile {
int flags;
int prot;
bool writable;
+ bool tail_entry_monotonic_valid;
Header *header;
+ HashItem *data_hash_table;
+ HashItem *field_hash_table;
- HashItem *hash_table;
- void *hash_table_window;
- uint64_t hash_table_window_size;
-
- uint64_t *bisect_table;
- void *bisect_table_window;
- uint64_t bisect_table_window_size;
-
- void *window;
- uint64_t window_offset;
- uint64_t window_size;
+ Window windows[_WINDOW_MAX];
uint64_t current_offset;
} JournalFile;
@@ -60,20 +70,28 @@ typedef enum direction {
} direction_t;
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_move_to_object(JournalFile *f, uint64_t offset, int type, Object **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);
int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqno, Object **ret, uint64_t *offset);
-int journal_file_move_to_entry(JournalFile *f, uint64_t seqnum, Object **ret, uint64_t *offset);
+int journal_file_find_data_object(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset);
+int journal_file_find_data_object_with_hash(JournalFile *f, const void *data, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset);
-int journal_file_find_first_entry(JournalFile *f, const void *data, uint64_t size, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_next_entry(JournalFile *f, Object *o, uint64_t p, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_skip_entry(JournalFile *f, Object *o, uint64_t p, int64_t skip, Object **ret, uint64_t *offset);
-int journal_file_next_entry(JournalFile *f, Object *o, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_next_entry_for_data(JournalFile *f, Object *o, uint64_t p, uint64_t data_offset, direction_t direction, Object **ret, uint64_t *offset);
+
+int journal_file_move_to_entry_by_seqnum(JournalFile *f, uint64_t seqnum, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_realtime(JournalFile *f, uint64_t realtime, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_monotonic(JournalFile *f, sd_id128_t boot_id, uint64_t monotonic, direction_t direction, Object **ret, uint64_t *offset);
+
+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);
void journal_file_dump(JournalFile *f);
@@ -81,5 +99,4 @@ int journal_file_rotate(JournalFile **f);
int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t min_free);
-
#endif