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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-08-01 22:45:09 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-08-01 22:45:09 +0000 |
| commit | 4a78cdeb6b598940e9d9adb92deca6494628802a (patch) | |
| tree | 0c8ad45eea297dcbc647705265eab8188fd4d8b1 /src/include/access/xlog.h | |
| parent | c722628a430f347ff4a30419004cddc9795a3bb6 (diff) | |
| download | postgresql-4a78cdeb6b598940e9d9adb92deca6494628802a.tar.gz postgresql-4a78cdeb6b598940e9d9adb92deca6494628802a.zip | |
Support an optional asynchronous commit mode, in which we don't flush WAL
before reporting a transaction committed. Data consistency is still
guaranteed (unlike setting fsync = off), but a crash may lose the effects
of the last few transactions. Patch by Simon, some editorialization by Tom.
Diffstat (limited to 'src/include/access/xlog.h')
| -rw-r--r-- | src/include/access/xlog.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/include/access/xlog.h b/src/include/access/xlog.h index adc99a6eb06..2e1928dace0 100644 --- a/src/include/access/xlog.h +++ b/src/include/access/xlog.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.81 2007/07/24 04:54:09 tgl Exp $ + * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.82 2007/08/01 22:45:09 tgl Exp $ */ #ifndef XLOG_H #define XLOG_H @@ -197,8 +197,11 @@ extern CheckpointStatsData CheckpointStats; extern XLogRecPtr XLogInsert(RmgrId rmid, uint8 info, XLogRecData *rdata); extern void XLogFlush(XLogRecPtr RecPtr); extern void XLogBackgroundFlush(void); +extern void XLogAsyncCommitFlush(void); extern bool XLogNeedsFlush(XLogRecPtr RecPtr); +extern void XLogSetAsyncCommitLSN(XLogRecPtr record); + extern void xlog_redo(XLogRecPtr lsn, XLogRecord *record); extern void xlog_desc(StringInfo buf, uint8 xl_info, char *rec); |