diff options
Diffstat (limited to 'src/journals.h')
| -rw-r--r-- | src/journals.h | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/src/journals.h b/src/journals.h index 84c7a0f..1327a5e 100644 --- a/src/journals.h +++ b/src/journals.h @@ -13,14 +13,29 @@ #include "upstream/journal-def.h" -typedef struct iou_t iou_t; - -typedef struct journal_t { - char *name; - int fd, idx; -} journal_t; +/* TODO: the journal buf stuff should be made private to journals.c */ +#define JOURNAL_BUF_SIZE 8192 +#define JOURNAL_BUF_CNT 8 +typedef struct iou_t iou_t; typedef struct journals_t journals_t; +typedef struct journal_t journal_t; +typedef struct journal_buf_t journal_buf_t; + +struct journal_buf_t { + journal_buf_t *lru_prev, *lru_next; + uint64_t offset, length; + unsigned valid:1; + int idx; + uint8_t data[JOURNAL_BUF_SIZE]; +}; + +struct journal_t { + char *name; + int fd, idx; + journal_buf_t *lru_head, *lru_tail; + journal_buf_t bufs[JOURNAL_BUF_CNT]; +}; THUNK_DECLARE(journals_open, iou_t *, iou, char **, machid, int, flags, journals_t **, journals, thunk_t *, closure); THUNK_DECLARE(journal_get_header, iou_t *, iou, journal_t **, journal, Header *, header, thunk_t *, closure); @@ -40,4 +55,6 @@ THUNK_DECLARE(journals_for_each, journals_t **, journals, journal_t **, journal_ const char * journal_object_type_str(ObjectType type); const char * journal_state_str(JournalState state); +int journal_read(iou_t *iou, journal_t *journal, uint64_t offset, uint64_t length, void *dest, thunk_t *closure); + #endif |