diff options
Diffstat (limited to 'src/include/storage/bufmgr.h')
| -rw-r--r-- | src/include/storage/bufmgr.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/include/storage/bufmgr.h b/src/include/storage/bufmgr.h index 92c4bc543e2..7d57c048714 100644 --- a/src/include/storage/bufmgr.h +++ b/src/include/storage/bufmgr.h @@ -45,16 +45,36 @@ typedef enum * replay; otherwise same as RBM_NORMAL */ } ReadBufferMode; +/* forward declared, to avoid having to expose buf_internals.h here */ +struct WritebackContext; + /* in globals.c ... this duplicates miscadmin.h */ extern PGDLLIMPORT int NBuffers; /* in bufmgr.c */ +#define WRITEBACK_MAX_PENDING_FLUSHES 256 + +/* FIXME: Also default to on for mmap && msync(MS_ASYNC)? */ +#ifdef HAVE_SYNC_FILE_RANGE +#define DEFAULT_CHECKPOINT_FLUSH_AFTER 32 +#define DEFAULT_BACKEND_FLUSH_AFTER 16 +#define DEFAULT_BGWRITER_FLUSH_AFTER 64 +#else +#define DEFAULT_CHECKPOINT_FLUSH_AFTER 0 +#define DEFAULT_BACKEND_FLUSH_AFTER 0 +#define DEFAULT_BGWRITER_FLUSH_AFTER 0 +#endif /* HAVE_SYNC_FILE_RANGE */ + extern bool zero_damaged_pages; extern int bgwriter_lru_maxpages; extern double bgwriter_lru_multiplier; extern bool track_io_timing; extern int target_prefetch_pages; +extern int checkpoint_flush_after; +extern int backend_flush_after; +extern int bgwriter_flush_after; + /* in buf_init.c */ extern PGDLLIMPORT char *BufferBlocks; @@ -209,7 +229,7 @@ extern bool HoldingBufferPinThatDelaysRecovery(void); extern void AbortBufferIO(void); extern void BufmgrCommit(void); -extern bool BgBufferSync(void); +extern bool BgBufferSync(struct WritebackContext *wb_context); extern void AtProcExit_LocalBuffers(void); |