C++ (Cpp) inv_truncate 예제들

예제 #1

파일: be-fsstubs.c 프로젝트: GisKook/Gis

/*
 * lo_truncate -
 *	  truncate a large object to a specified length
 */
Datum
lo_truncate(PG_FUNCTION_ARGS)
{
	int32		fd = PG_GETARG_INT32(0);
	int32		len = PG_GETARG_INT32(1);

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));

	/* Permission checks */
	if (!lo_compat_privileges &&
		pg_largeobject_aclcheck_snapshot(cookies[fd]->id,
										 GetUserId(),
										 ACL_UPDATE,
									   cookies[fd]->snapshot) != ACLCHECK_OK)
		ereport(ERROR,
				(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
				 errmsg("permission denied for large object %u",
						cookies[fd]->id)));

	inv_truncate(cookies[fd], len);

	PG_RETURN_INT32(0);
}

예제 #2

파일: be-fsstubs.cpp 프로젝트: EccentricLoggers/peloton

/*
 * lo_truncate -
 *	  truncate a large object to a specified length
 */
static void
lo_truncate_internal(int32 fd, int64 len)
{
	LargeObjectDesc *lobj;

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));
	lobj = cookies[fd];

	if ((lobj->flags & IFS_WRLOCK) == 0)
		ereport(ERROR,
				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
			  errmsg("large object descriptor %d was not opened for writing",
					 fd)));

	/* Permission checks --- first time through only */
	if ((lobj->flags & IFS_WR_PERM_OK) == 0)
	{
		if (!lo_compat_privileges &&
			pg_largeobject_aclcheck_snapshot(lobj->id,
											 GetUserId(),
											 ACL_UPDATE,
											 lobj->snapshot) != ACLCHECK_OK)
			ereport(ERROR,
					(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
					 errmsg("permission denied for large object %u",
							lobj->id)));
		lobj->flags |= IFS_WR_PERM_OK;
	}

	inv_truncate(lobj, len);
}

예제 #3

파일: be-fsstubs.c 프로젝트: techdragon/Postgres-XL

/*
 * lo_truncate -
 *	  truncate a large object to a specified length
 */
static void
lo_truncate_internal(int32 fd, int64 len)
{
	LargeObjectDesc *lobj;

#ifdef PGXC
#ifdef XCP
	ereport(ERROR,
			(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
			 errmsg("Postgres-XL does not yet support large objects"),
			 errdetail("The feature is not currently supported")));
#else
	ereport(ERROR,
			(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
			 errmsg("Postgres-XC does not support large object yet"),
			 errdetail("The feature is not currently supported")));
#endif
#endif

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));
	lobj = cookies[fd];

	if ((lobj->flags & IFS_WRLOCK) == 0)
		ereport(ERROR,
				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
			  errmsg("large object descriptor %d was not opened for writing",
					 fd)));

	/* Permission checks --- first time through only */
	if ((lobj->flags & IFS_WR_PERM_OK) == 0)
	{
		if (!lo_compat_privileges &&
			pg_largeobject_aclcheck_snapshot(lobj->id,
											 GetUserId(),
											 ACL_UPDATE,
											 lobj->snapshot) != ACLCHECK_OK)
			ereport(ERROR,
					(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
					 errmsg("permission denied for large object %u",
							lobj->id)));
		lobj->flags |= IFS_WR_PERM_OK;
	}

	inv_truncate(lobj, len);
}

예제 #4

파일: be-fsstubs.c 프로젝트: eubide/postgres

/*
 * lo_truncate -
 *	  truncate a large object to a specified length
 */
static void
lo_truncate_internal(int32 fd, int64 len)
{
	LargeObjectDesc *lobj;

	if (fd < 0 || fd >= cookies_size || cookies[fd] == NULL)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("invalid large-object descriptor: %d", fd)));
	lobj = cookies[fd];

	/* see comment in lo_read() */
	if ((lobj->flags & IFS_WRLOCK) == 0)
		ereport(ERROR,
				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
				 errmsg("large object descriptor %d was not opened for writing",
						fd)));

	inv_truncate(lobj, len);
}