int SC_Create_bookmark()

in statement.c [3286:3319]

• 31 lines of code
• 8 McCabe index (conditional complexity)

int	SC_Create_bookmark(StatementClass *self, BindInfoClass *bookmark, Int4 bind_row, Int4 currTuple, const KeySet *keyset)
{
	ARDFields	*opts = SC_get_ARDF(self);
	SQLUINTEGER	bind_size = opts->bind_size;
	SQLULEN		offset = opts->row_offset_ptr ? *opts->row_offset_ptr : 0;
	size_t		cvtlen = sizeof(Int4);
	PG_BM		pg_bm;

MYLOG(MIN_LOG_LEVEL, "entering type=%d buflen=" FORMAT_LEN " buf=%p\n", bookmark->returntype, bookmark->buflen, bookmark->buffer);
	pg_memset(&pg_bm, 0, sizeof(pg_bm));
	if (SQL_C_BOOKMARK == bookmark->returntype)
		;
	else if (bookmark->buflen >= sizeof(pg_bm))
		cvtlen = sizeof(pg_bm);
	else if (bookmark->buflen >= 12)
		cvtlen = 12;
	pg_bm.index = SC_make_int4_bookmark(currTuple);
	if (keyset)
		pg_bm.keys  = *keyset;
	memcpy(CALC_BOOKMARK_ADDR(bookmark, offset, bind_size, bind_row), &pg_bm, cvtlen);
	if (bookmark->used)
	{
		SQLLEN *used = LENADDR_SHIFT(bookmark->used, offset);

		if (bind_size > 0)
			used = LENADDR_SHIFT(used, bind_row * bind_size);
		else
			used = LENADDR_SHIFT(used, bind_row * sizeof(SQLLEN));
		*used = cvtlen;
	}
MYLOG(MIN_LOG_LEVEL, "leaving cvtlen=" FORMAT_SIZE_T " ix(bl,of)=%d(%d,%d)\n", cvtlen, pg_bm.index, pg_bm.keys.blocknum, pg_bm.keys.offset);

	return COPY_OK;
}