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Add built-in userlock manipulation functions to replace the former

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contrib functionality.  Along the way, remove the USER_LOCKS configuration
symbol, since it no longer makes any sense to try to compile that out.
No user documentation yet ... mmoncure has promised to write some.
Thanks to Abhijit Menon-Sen for creating a first draft to work from.
This commit is contained in:
Tom Lane
2006-09-18 22:40:40 +00:00
parent f7f308d6a6
commit 9b4cda0df6
11 changed files with 336 additions and 50 deletions
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8
src/backend/storage/lmgr/lock.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lock.c,v 1.172 2006/08/27 19:14:34 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lock.c,v 1.173 2006/09/18 22:40:36 tgl Exp $
*
* NOTES
* A lock table is a shared memory hash table. When
@@ -127,8 +127,6 @@ static const LockMethodData default_lockmethod = {
#endif
};
#ifdef USER_LOCKS
static const LockMethodData user_lockmethod = {
AccessExclusiveLock, /* highest valid lock mode number */
false,
@@ -141,17 +139,13 @@ static const LockMethodData user_lockmethod = {
#endif
};
#endif /* USER_LOCKS */
/*
* map from lock method id to the lock table data structures
*/
static const LockMethod LockMethods[] = {
NULL,
&default_lockmethod,
#ifdef USER_LOCKS
&user_lockmethod
#endif
};