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postgresql/src/include/utils/inval.h

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More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
/*-------------------------------------------------------------------------
*
Change my-function-name-- to my_function_name, and optimizer renames.
1999-02-14 00:22:53 +01:00
* inval.h
Massive commit to run PGINDENT on all *.c and *.h files.
1997-09-07 07:04:48 +02:00
* POSTGRES cache invalidation dispatcher definitions.
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
*
*
Update copyrights in source tree to 2008.
2008-01-01 20:46:01 +01:00
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
Add: * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
2000-01-26 06:58:53 +01:00
* Portions Copyright (c) 1994, Regents of the University of California
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
*
Improve our #include situation by moving pointer types away from the corresponding struct definitions. This allows other headers to avoid including certain highly-loaded headers such as rel.h and relscan.h, instead using just relcache.h, heapam.h or genam.h, which are more lightweight and thus cause less unnecessary dependencies.
2008-06-19 02:46:06 +02:00
* $PostgreSQL: pgsql/src/include/utils/inval.h,v 1.43 2008/06/19 00:46:06 alvherre Exp $
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
*
*-------------------------------------------------------------------------
*/
Massive commit to run PGINDENT on all *.c and *.h files.
1997-09-07 07:04:48 +02:00
#ifndef INVAL_H
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
#define INVAL_H
Change #include's to use <> and "" as appropriate.
1999-07-16 01:04:24 +02:00
#include "access/htup.h"
Improve our #include situation by moving pointer types away from the corresponding struct definitions. This allows other headers to avoid including certain highly-loaded headers such as rel.h and relscan.h, instead using just relcache.h, heapam.h or genam.h, which are more lightweight and thus cause less unnecessary dependencies.
2008-06-19 02:46:06 +02:00
#include "utils/relcache.h"
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
Add cache invalidation callback hooks.
2002-04-30 00:14:34 +02:00
typedef void (*CacheCallbackFunction) (Datum arg, Oid relid);
Clean up some longstanding problems in shared-cache invalidation. SI messages now include the relevant database OID, so that operations in one database do not cause useless cache flushes in backends attached to other databases. Declare SI messages properly using a union, to eliminate the former assumption that Oid is the same size as int or Index. Rewrite the nearly-unreadable code in inval.c, and document it better. Arrange for catcache flushes at end of command/transaction to happen before relcache flushes do --- this avoids loading a new tuple into the catcache while setting up new relcache entry, only to have it be flushed again immediately.
2001-06-19 21:42:16 +02:00
extern void AcceptInvalidationMessages(void);
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
Nested transactions. There is still much left to do, especially on the performance front, but with feature freeze upon us I think it's time to drive a stake in the ground and say that this will be in 7.5. Alvaro Herrera, with some help from Tom Lane.
2004-07-01 02:52:04 +02:00
extern void AtStart_Inval(void);
Clean up some longstanding problems in shared-cache invalidation. SI messages now include the relevant database OID, so that operations in one database do not cause useless cache flushes in backends attached to other databases. Declare SI messages properly using a union, to eliminate the former assumption that Oid is the same size as int or Index. Rewrite the nearly-unreadable code in inval.c, and document it better. Arrange for catcache flushes at end of command/transaction to happen before relcache flushes do --- this avoids loading a new tuple into the catcache while setting up new relcache entry, only to have it be flushed again immediately.
2001-06-19 21:42:16 +02:00
Nested transactions. There is still much left to do, especially on the performance front, but with feature freeze upon us I think it's time to drive a stake in the ground and say that this will be in 7.5. Alvaro Herrera, with some help from Tom Lane.
2004-07-01 02:52:04 +02:00
extern void AtSubStart_Inval(void);
extern void AtEOXact_Inval(bool isCommit);
Fix subtransaction behavior for large objects, temp namespace, files, password/group files. Also allow read-only subtransactions of a read-write parent, but not vice versa. These are the reasonably noncontroversial parts of Alvaro's recent mop-up patch, plus further work on large objects to minimize use of the TopTransactionResourceOwner.
2004-07-28 16:23:31 +02:00
extern void AtEOSubXact_Inval(bool isCommit);
Nested transactions. There is still much left to do, especially on the performance front, but with feature freeze upon us I think it's time to drive a stake in the ground and say that this will be in 7.5. Alvaro Herrera, with some help from Tom Lane.
2004-07-01 02:52:04 +02:00
Two-phase commit. Original patch by Heikki Linnakangas, with additional hacking by Alvaro Herrera and Tom Lane.
2005-06-18 00:32:51 +02:00
extern void AtPrepare_Inval(void);
extern void PostPrepare_Inval(void);
Nested transactions. There is still much left to do, especially on the performance front, but with feature freeze upon us I think it's time to drive a stake in the ground and say that this will be in 7.5. Alvaro Herrera, with some help from Tom Lane.
2004-07-01 02:52:04 +02:00
extern void CommandEndInvalidationMessages(void);
Improve cache invalidation handling. Eespecially this would fix TODO * elog() flushes cache, try invalidating just entries from current xact, perhaps using invalidation cache
2000-01-10 07:30:56 +01:00
Fix heap_page_prune's problem with failing to send cache invalidation messages if the calling transaction aborts later on. Collapsing out line pointer redirects is a done deal as soon as we complete the page update, so syscache *must* be notified even if the VACUUM FULL as a whole doesn't complete. To fix, add some functionality to inval.c to allow the pending inval messages to be sent immediately while heap_page_prune is still running. The implementation is a bit chintzy: it will only work in the context of VACUUM FULL. But that's all we need now, and it can always be extended later if needed. Per my trouble report of a week ago.
2008-03-13 19:00:32 +01:00
extern void BeginNonTransactionalInvalidation(void);
extern void EndNonTransactionalInvalidation(void);
Catcaches can now store negative entries as well as positive ones, to speed up repetitive failed searches; per pghackers discussion in late January. inval.c logic substantially simplified, since we can now treat inserts and deletes alike as far as inval events are concerned. Some repair work needed in heap_create_with_catalog, which turns out to have been doing CommandCounterIncrement at a point where the new relation has non-self-consistent catalog entries. With the new inval code, that resulted in assert failures during a relcache entry rebuild.
2002-03-03 18:47:56 +01:00
extern void CacheInvalidateHeapTuple(Relation relation, HeapTuple tuple);
More cleanups of the include files - centralizing to simplify the -I's required to compile
1996-08-28 03:59:28 +02:00
Restructure smgr API as per recent proposal. smgr no longer depends on the relcache, and so the notion of 'blind write' is gone. This should improve efficiency in bgwriter and background checkpoint processes. Internal restructuring in md.c to remove the not-very-useful array of MdfdVec objects --- might as well just use pointers. Also remove the long-dead 'persistent main memory' storage manager (mm.c), since it seems quite unlikely to ever get resurrected.
2004-02-10 02:55:27 +01:00
extern void CacheInvalidateRelcache(Relation relation);
extern void CacheInvalidateRelcacheByTuple(HeapTuple classTuple);
Another pgindent run. Fixes enum indenting, and improves #endif spacing. Also adds space for one-line comments.
2001-10-28 07:26:15 +01:00
Make ALTER COLUMN TYPE preserve clustered status for indexes it doesn't modify. Also fix a passel of problems with ALTER TABLE CLUSTER ON: failure to check that the index is safe to cluster on (or even belongs to the indicated rel, or even exists), and failure to broadcast a relcache flush event when changing an index's state.
2004-05-06 18:10:57 +02:00
extern void CacheInvalidateRelcacheByRelid(Oid relid);
Add cache invalidation callback hooks.
2002-04-30 00:14:34 +02:00
extern void CacheRegisterSyscacheCallback(int cacheid,
pgindent run.
2002-09-04 22:31:48 +02:00
CacheCallbackFunction func,
Datum arg);
Add cache invalidation callback hooks.
2002-04-30 00:14:34 +02:00
extern void CacheRegisterRelcacheCallback(CacheCallbackFunction func,
pgindent run.
2002-09-04 22:31:48 +02:00
Datum arg);
Add cache invalidation callback hooks.
2002-04-30 00:14:34 +02:00
Two-phase commit. Original patch by Heikki Linnakangas, with additional hacking by Alvaro Herrera and Tom Lane.
2005-06-18 00:32:51 +02:00
extern void inval_twophase_postcommit(TransactionId xid, uint16 info,
Standard pgindent run for 8.1.
2005-10-15 04:49:52 +02:00
void *recdata, uint32 len);
Two-phase commit. Original patch by Heikki Linnakangas, with additional hacking by Alvaro Herrera and Tom Lane.
2005-06-18 00:32:51 +02:00
New pgindent run with fixes suggested by Tom. Patch manually reviewed, initdb/regression tests pass.
2001-11-05 18:46:40 +01:00
#endif /* INVAL_H */