diff options
| author | Thomas Munro | 2020-04-08 01:36:45 +0000 |
|---|---|---|
| committer | Thomas Munro | 2020-04-08 02:56:57 +0000 |
| commit | 3985b600f57d75b9743d86430cb5c21370057a23 (patch) | |
| tree | f367f4511386eeacf127a8e8b25afc9f8ea46101 /src/include/storage/md.h | |
| parent | 981643dcdb70b6ce70d8a08417f71f465f236cb5 (diff) | |
Support PrefetchBuffer() in recovery.
Provide PrefetchSharedBuffer(), a variant that takes SMgrRelation, for
use in recovery. Rename LocalPrefetchBuffer() to PrefetchLocalBuffer()
for consistency.
Add a return value to all of these. In recovery, tolerate and report
missing files, so we can handle relations unlinked before crash recovery
began. Also report cache hits and misses, so that callers can do faster
buffer lookups and better I/O accounting.
Reviewed-by: Alvaro Herrera <[email protected]>
Reviewed-by: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/CA%2BhUKGJ4VJN8ttxScUFM8dOKX0BrBiboo5uz1cq%3DAovOddfHpA%40mail.gmail.com
Diffstat (limited to 'src/include/storage/md.h')
| -rw-r--r-- | src/include/storage/md.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/storage/md.h b/src/include/storage/md.h index ec7630ce3b7..07fd1bb7d06 100644 --- a/src/include/storage/md.h +++ b/src/include/storage/md.h @@ -28,7 +28,7 @@ extern bool mdexists(SMgrRelation reln, ForkNumber forknum); extern void mdunlink(RelFileNodeBackend rnode, ForkNumber forknum, bool isRedo); extern void mdextend(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum, char *buffer, bool skipFsync); -extern void mdprefetch(SMgrRelation reln, ForkNumber forknum, +extern bool mdprefetch(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum); extern void mdread(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum, char *buffer); |