diff options
| author | Tom Lane | 2010-02-16 22:34:57 +0000 |
|---|---|---|
| committer | Tom Lane | 2010-02-16 22:34:57 +0000 |
| commit | d1e027221d0243b7b57eabb0e482923dd7d1c8eb (patch) | |
| tree | 034988b788248c88fad3b73fb4d8d1afff2dd509 /src/include/access/twophase_rmgr.h | |
| parent | fc5173ad514a216dc93bc190dbba3751024a257d (diff) | |
Replace the pg_listener-based LISTEN/NOTIFY mechanism with an in-memory queue.
In addition, add support for a "payload" string to be passed along with
each notify event.
This implementation should be significantly more efficient than the old one,
and is also more compatible with Hot Standby usage. There is not yet any
facility for HS slaves to receive notifications generated on the master,
although such a thing is possible in future.
Joachim Wieland, reviewed by Jeff Davis; also hacked on by me.
Diffstat (limited to 'src/include/access/twophase_rmgr.h')
| -rw-r--r-- | src/include/access/twophase_rmgr.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/include/access/twophase_rmgr.h b/src/include/access/twophase_rmgr.h index a42d7745205..1d4d1cb2217 100644 --- a/src/include/access/twophase_rmgr.h +++ b/src/include/access/twophase_rmgr.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/twophase_rmgr.h,v 1.11 2010/01/02 16:58:00 momjian Exp $ + * $PostgreSQL: pgsql/src/include/access/twophase_rmgr.h,v 1.12 2010/02/16 22:34:50 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -23,9 +23,8 @@ typedef uint8 TwoPhaseRmgrId; */ #define TWOPHASE_RM_END_ID 0 #define TWOPHASE_RM_LOCK_ID 1 -#define TWOPHASE_RM_NOTIFY_ID 2 -#define TWOPHASE_RM_PGSTAT_ID 3 -#define TWOPHASE_RM_MULTIXACT_ID 4 +#define TWOPHASE_RM_PGSTAT_ID 2 +#define TWOPHASE_RM_MULTIXACT_ID 3 #define TWOPHASE_RM_MAX_ID TWOPHASE_RM_MULTIXACT_ID extern const TwoPhaseCallback twophase_recover_callbacks[]; |