C++ (Cpp) get_raw_page_internal示例

示例#1

文件： rawpage.c 项目： ASchurman/BufStrat

Datum
get_raw_page_fork(PG_FUNCTION_ARGS)
{
	text	   *relname = PG_GETARG_TEXT_P(0);
	text	   *forkname = PG_GETARG_TEXT_P(1);
	uint32		blkno = PG_GETARG_UINT32(2);
	bytea	   *raw_page;
	ForkNumber	forknum;

	forknum = forkname_to_number(text_to_cstring(forkname));

	raw_page = get_raw_page_internal(relname, forknum, blkno);

	PG_RETURN_BYTEA_P(raw_page);
}

示例#2

文件： rawpage.c 项目： colinet/sqlix

datum_t
get_raw_page_fork(PG_FUNC_ARGS)
{
	text	   *relname = ARG_TEXT_P(0);
	text	   *forkname = ARG_TEXT_P(1);
	uint32		blkno = ARG_UINT32(2);
	bytea	   *raw_page;
	enum fork	forknum;

	forknum = forkname_to_number(text_to_cstring(forkname));

	raw_page = get_raw_page_internal(relname, forknum, blkno);

	RET_BYTEA_P(raw_page);
}

示例#3

文件： rawpage.c 项目： ASchurman/BufStrat

Datum
get_raw_page(PG_FUNCTION_ARGS)
{
	text	   *relname = PG_GETARG_TEXT_P(0);
	uint32		blkno = PG_GETARG_UINT32(1);
	bytea	   *raw_page;

	/*
	 * We don't normally bother to check the number of arguments to a C
	 * function, but here it's needed for safety because early 8.4 beta
	 * releases mistakenly redefined get_raw_page() as taking three arguments.
	 */
	if (PG_NARGS() != 2)
		ereport(ERROR,
				(errmsg("wrong number of arguments to get_raw_page()"),
				 errhint("Run the updated pageinspect.sql script.")));

	raw_page = get_raw_page_internal(relname, MAIN_FORKNUM, blkno);

	PG_RETURN_BYTEA_P(raw_page);
}