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The contents of command.c, creatinh.c, define.c, remove.c and rename.c

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have been divided according to the type of object manipulated - so ALTER
TABLE code is in tablecmds.c, aggregate commands in aggregatecmds.c and
so on.

A few common support routines remain in define.c (prototypes in
src/include/commands/defrem.h).

No code has been changed except for includes to reflect the new files.
The prototypes for aggregatecmds.c, functioncmds.c, operatorcmds.c,
and typecmds.c remain in src/include/commands/defrem.h.

From John Gray <jgray@azuli.co.uk>
This commit is contained in:
Tom Lane
2002-04-15 05:22:04 +00:00
parent ab1ead6b97
commit 71dc300a37
29 changed files with 3620 additions and 3578 deletions
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69
src/backend/commands/lockcmds.c Normal file
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/*-------------------------------------------------------------------------
*
* lockcmds.c
* Lock command support code
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/lockcmds.c,v 1.1 2002/04/15 05:22:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/namespace.h"
#include "commands/lockcmds.h"
#include "miscadmin.h"
#include "utils/acl.h"
/*
* LOCK TABLE
*/
void
LockTableCommand(LockStmt *lockstmt)
{
List *p;
/*
* Iterate over the list and open, lock, and close the relations one
* at a time
*/
foreach(p, lockstmt->relations)
{
RangeVar *relation = lfirst(p);
Oid reloid;
int32 aclresult;
Relation rel;
/*
* We don't want to open the relation until we've checked privilege.
* So, manually get the relation OID.
*/
reloid = RangeVarGetRelid(relation, false);
if (lockstmt->mode == AccessShareLock)
aclresult = pg_class_aclcheck(reloid, GetUserId(),
ACL_SELECT);
else
aclresult = pg_class_aclcheck(reloid, GetUserId(),
ACL_UPDATE | ACL_DELETE);
if (aclresult != ACLCHECK_OK)
elog(ERROR, "LOCK TABLE: permission denied");
rel = relation_open(reloid, lockstmt->mode);
/* Currently, we only allow plain tables to be locked */
if (rel->rd_rel->relkind != RELKIND_RELATION)
elog(ERROR, "LOCK TABLE: %s is not a table",
relation->relname);
relation_close(rel, NoLock); /* close rel, keep lock */
}
}