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Name	Size	Permission
acl.h	12.79 KB	-rw-r--r--
array.h	10.97 KB	-rw-r--r--
ascii.h	579 B	-rw-r--r--
attoptcache.h	725 B	-rw-r--r--
builtins.h	47.77 KB	-rw-r--r--
bytea.h	1.58 KB	-rw-r--r--
cash.h	2.07 KB	-rw-r--r--
catcache.h	7.51 KB	-rw-r--r--
combocid.h	698 B	-rw-r--r--
date.h	7.73 KB	-rw-r--r--
datetime.h	9.92 KB	-rw-r--r--
datum.h	1.48 KB	-rw-r--r--
dynahash.h	498 B	-rw-r--r--
dynamic_loader.h	648 B	-rw-r--r--
elog.h	12.56 KB	-rw-r--r--
errcodes.h	19.61 KB	-rw-r--r--
fmgroids.h	61.09 KB	-rw-r--r--
fmgrtab.h	1.15 KB	-rw-r--r--
formatting.h	1.41 KB	-rw-r--r--
geo_decls.h	15.86 KB	-rw-r--r--
guc.h	13.19 KB	-rw-r--r--
guc_tables.h	7.15 KB	-rw-r--r--
help_config.h	432 B	-rw-r--r--
hsearch.h	5.51 KB	-rw-r--r--
inet.h	2.66 KB	-rw-r--r--
int8.h	4.03 KB	-rw-r--r--
inval.h	1.81 KB	-rw-r--r--
json.h	916 B	-rw-r--r--
logtape.h	1.5 KB	-rw-r--r--
lsyscache.h	6.51 KB	-rw-r--r--
memutils.h	5.2 KB	-rw-r--r--
nabstime.h	5.79 KB	-rw-r--r--
numeric.h	1.88 KB	-rw-r--r--
palloc.h	3.92 KB	-rw-r--r--
pg_crc.h	4.36 KB	-rw-r--r--
pg_crc_tables.h	19.73 KB	-rw-r--r--
pg_locale.h	2.59 KB	-rw-r--r--
pg_lzcompress.h	2.97 KB	-rw-r--r--
pg_rusage.h	847 B	-rw-r--r--
plancache.h	8.02 KB	-rw-r--r--
portal.h	9.22 KB	-rw-r--r--
probes.h	37.93 KB	-rw-r--r--
ps_status.h	668 B	-rw-r--r--
rangetypes.h	7.4 KB	-rw-r--r--
rbtree.h	2.26 KB	-rw-r--r--
rel.h	12.27 KB	-rw-r--r--
relcache.h	3.17 KB	-rw-r--r--
relmapper.h	1.68 KB	-rw-r--r--
reltrigger.h	1.95 KB	-rw-r--r--
resowner.h	5.07 KB	-rw-r--r--
selfuncs.h	7.5 KB	-rw-r--r--
snapmgr.h	1.59 KB	-rw-r--r--
snapshot.h	2.59 KB	-rw-r--r--
sortsupport.h	5.3 KB	-rw-r--r--
spccache.h	556 B	-rw-r--r--
syscache.h	5.51 KB	-rw-r--r--
timestamp.h	9.5 KB	-rw-r--r--
tqual.h	3.5 KB	-rw-r--r--
tuplesort.h	4.62 KB	-rw-r--r--
tuplestore.h	3.14 KB	-rw-r--r--
typcache.h	4.26 KB	-rw-r--r--
tzparser.h	1.13 KB	-rw-r--r--
uuid.h	861 B	-rw-r--r--
varbit.h	4.27 KB	-rw-r--r--
xml.h	3.89 KB	-rw-r--r--

Code Editor : resowner.h

/*-------------------------------------------------------------------------
 *
 * resowner.h
 *	  POSTGRES resource owner definitions.
 *
 * Query-lifespan resources are tracked by associating them with
 * ResourceOwner objects.  This provides a simple mechanism for ensuring
 * that such resources are freed at the right time.
 * See utils/resowner/README for more info.
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/resowner.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef RESOWNER_H
#define RESOWNER_H

#include "storage/fd.h"
#include "storage/lock.h"
#include "utils/catcache.h"
#include "utils/plancache.h"
#include "utils/snapshot.h"

/*
 * ResourceOwner objects are an opaque data structure known only within
 * resowner.c.
 */
typedef struct ResourceOwnerData *ResourceOwner;

/*
 * Globally known ResourceOwners
 */
extern PGDLLIMPORT ResourceOwner CurrentResourceOwner;
extern PGDLLIMPORT ResourceOwner CurTransactionResourceOwner;
extern PGDLLIMPORT ResourceOwner TopTransactionResourceOwner;

/*
 * Resource releasing is done in three phases: pre-locks, locks, and
 * post-locks.  The pre-lock phase must release any resources that are
 * visible to other backends (such as pinned buffers); this ensures that
 * when we release a lock that another backend may be waiting on, it will
 * see us as being fully out of our transaction.  The post-lock phase
 * should be used for backend-internal cleanup.
 */
typedef enum
{
	RESOURCE_RELEASE_BEFORE_LOCKS,
	RESOURCE_RELEASE_LOCKS,
	RESOURCE_RELEASE_AFTER_LOCKS
} ResourceReleasePhase;

/*
 *	Dynamically loaded modules can get control during ResourceOwnerRelease
 *	by providing a callback of this form.
 */
typedef void (*ResourceReleaseCallback) (ResourceReleasePhase phase,
													 bool isCommit,
													 bool isTopLevel,
													 void *arg);

/*
 * Functions in resowner.c
 */

/* generic routines */
extern ResourceOwner ResourceOwnerCreate(ResourceOwner parent,
					const char *name);
extern void ResourceOwnerRelease(ResourceOwner owner,
					 ResourceReleasePhase phase,
					 bool isCommit,
					 bool isTopLevel);
extern void ResourceOwnerDelete(ResourceOwner owner);
extern ResourceOwner ResourceOwnerGetParent(ResourceOwner owner);
extern void ResourceOwnerNewParent(ResourceOwner owner,
					   ResourceOwner newparent);
extern void RegisterResourceReleaseCallback(ResourceReleaseCallback callback,
								void *arg);
extern void UnregisterResourceReleaseCallback(ResourceReleaseCallback callback,
								  void *arg);

/* support for buffer refcount management */
extern void ResourceOwnerEnlargeBuffers(ResourceOwner owner);
extern void ResourceOwnerRememberBuffer(ResourceOwner owner, Buffer buffer);
extern void ResourceOwnerForgetBuffer(ResourceOwner owner, Buffer buffer);

/* support for local lock management */
extern void ResourceOwnerRememberLock(ResourceOwner owner, LOCALLOCK *locallock);
extern void ResourceOwnerForgetLock(ResourceOwner owner, LOCALLOCK *locallock);

/* support for catcache refcount management */
extern void ResourceOwnerEnlargeCatCacheRefs(ResourceOwner owner);
extern void ResourceOwnerRememberCatCacheRef(ResourceOwner owner,
								 HeapTuple tuple);
extern void ResourceOwnerForgetCatCacheRef(ResourceOwner owner,
							   HeapTuple tuple);
extern void ResourceOwnerEnlargeCatCacheListRefs(ResourceOwner owner);
extern void ResourceOwnerRememberCatCacheListRef(ResourceOwner owner,
									 CatCList *list);
extern void ResourceOwnerForgetCatCacheListRef(ResourceOwner owner,
								   CatCList *list);

/* support for relcache refcount management */
extern void ResourceOwnerEnlargeRelationRefs(ResourceOwner owner);
extern void ResourceOwnerRememberRelationRef(ResourceOwner owner,
								 Relation rel);
extern void ResourceOwnerForgetRelationRef(ResourceOwner owner,
							   Relation rel);

/* support for plancache refcount management */
extern void ResourceOwnerEnlargePlanCacheRefs(ResourceOwner owner);
extern void ResourceOwnerRememberPlanCacheRef(ResourceOwner owner,
								  CachedPlan *plan);
extern void ResourceOwnerForgetPlanCacheRef(ResourceOwner owner,
								CachedPlan *plan);

/* support for tupledesc refcount management */
extern void ResourceOwnerEnlargeTupleDescs(ResourceOwner owner);
extern void ResourceOwnerRememberTupleDesc(ResourceOwner owner,
							   TupleDesc tupdesc);
extern void ResourceOwnerForgetTupleDesc(ResourceOwner owner,
							 TupleDesc tupdesc);

/* support for snapshot refcount management */
extern void ResourceOwnerEnlargeSnapshots(ResourceOwner owner);
extern void ResourceOwnerRememberSnapshot(ResourceOwner owner,
							  Snapshot snapshot);
extern void ResourceOwnerForgetSnapshot(ResourceOwner owner,
							Snapshot snapshot);

/* support for temporary file management */
extern void ResourceOwnerEnlargeFiles(ResourceOwner owner);
extern void ResourceOwnerRememberFile(ResourceOwner owner,
						  File file);
extern void ResourceOwnerForgetFile(ResourceOwner owner,
						File file);

#endif   /* RESOWNER_H */

${this.title}

Code Editor : resowner.h