#include <gcrypt.h>
#endif
-#include <systemd/sd-id128.h>
+#include "systemd/sd-id128.h"
#include "sparse-endian.h"
#include "journal-def.h"
typedef struct JournalMetrics {
uint64_t max_use;
+ uint64_t use;
uint64_t max_size;
uint64_t min_size;
uint64_t keep_free;
} JournalMetrics;
+typedef enum direction {
+ DIRECTION_UP,
+ DIRECTION_DOWN
+} direction_t;
+
typedef struct JournalFile {
int fd;
- char *path;
- struct stat last_stat;
+
mode_t mode;
int flags;
int prot;
- bool writable;
- bool compress;
- bool seal;
+ bool writable:1;
+ bool compress_xz:1;
+ bool compress_lz4:1;
+ bool seal:1;
+
+ bool tail_entry_monotonic_valid:1;
- bool tail_entry_monotonic_valid;
+ direction_t last_direction;
+
+ char *path;
+ struct stat last_stat;
Header *header;
HashItem *data_hash_table;
Hashmap *chain_cache;
-#ifdef HAVE_XZ
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
void *compress_buffer;
- uint64_t compress_buffer_size;
+ size_t compress_buffer_size;
#endif
#ifdef HAVE_GCRYPT
#endif
} JournalFile;
-typedef enum direction {
- DIRECTION_UP,
- DIRECTION_DOWN
-} direction_t;
-
int journal_file_open(
const char *fname,
int flags,
JournalFile *template,
JournalFile **ret);
+int journal_file_set_offline(JournalFile *f);
void journal_file_close(JournalFile *j);
int journal_file_open_reliably(
#define ALIGN64(x) (((x) + 7ULL) & ~7ULL)
#define VALID64(x) (((x) & 7ULL) == 0ULL)
+/* Use six characters to cover the offsets common in smallish journal
+ * files without adding too many zeros. */
+#define OFSfmt "%06"PRIx64
+
static inline bool VALID_REALTIME(uint64_t u) {
/* This considers timestamps until the year 3112 valid. That should be plenty room... */
return u > 0 && u < (1ULL << 55);
#define JOURNAL_HEADER_SEALED(h) \
(!!(le32toh((h)->compatible_flags) & HEADER_COMPATIBLE_SEALED))
-#define JOURNAL_HEADER_COMPRESSED(h) \
- (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED))
+#define JOURNAL_HEADER_COMPRESSED_XZ(h) \
+ (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED_XZ))
+
+#define JOURNAL_HEADER_COMPRESSED_LZ4(h) \
+ (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED_LZ4))
int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Object **ret);
-uint64_t journal_file_entry_n_items(Object *o);
-uint64_t journal_file_entry_array_n_items(Object *o);
-uint64_t journal_file_hash_table_n_items(Object *o);
+uint64_t journal_file_entry_n_items(Object *o) _pure_;
+uint64_t journal_file_entry_array_n_items(Object *o) _pure_;
+uint64_t journal_file_hash_table_n_items(Object *o) _pure_;
int journal_file_append_object(JournalFile *f, int type, uint64_t size, Object **ret, uint64_t *offset);
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_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot, usec_t *from, usec_t *to);
bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec);
+
+
+static unsigned type_to_context(int type) {
+ /* One context for each type, plus one catch-all for the rest */
+ return type > 0 && type < _OBJECT_TYPE_MAX ? type : 0;
+}
+
+static inline int journal_file_object_keep(JournalFile *f, Object *o, uint64_t offset) {
+ unsigned context = type_to_context(o->object.type);
+ uint64_t s = le64toh(o->object.size);
+
+ return mmap_cache_get(f->mmap, f->fd, f->prot, context, true,
+ offset, s, &f->last_stat, NULL);
+}
+
+static inline int journal_file_object_release(JournalFile *f, Object *o, uint64_t offset) {
+ unsigned context = type_to_context(o->object.type);
+ uint64_t s = le64toh(o->object.size);
+
+ return mmap_cache_release(f->mmap, f->fd, f->prot, context, offset, s);
+}