drizzle_field_t drizzle_field_read(drizzle_result_st *result, size_t *offset,
size_t *size, size_t *total,
drizzle_return_t *ret_ptr)
{
if (drizzle_state_none(result->con))
{
if (result->field_current == result->column_count)
{
*ret_ptr= DRIZZLE_RETURN_ROW_END;
return NULL;
}
drizzle_state_push(result->con, drizzle_state_field_read);
}
*ret_ptr= drizzle_state_loop(result->con);
if (*ret_ptr == DRIZZLE_RETURN_OK &&
result->options & DRIZZLE_RESULT_ROW_BREAK)
{
*ret_ptr= DRIZZLE_RETURN_ROW_BREAK;
}
*offset= result->field_offset;
*size= result->field_size;
*total= result->field_total;
return result->field;
}
drizzle_return_t drizzle_row_write(drizzle_result_st *result)
{
if (drizzle_state_none(result->con))
drizzle_state_push(result->con, drizzle_state_row_write);
return drizzle_state_loop(result->con);
}
uint64_t drizzle_row_read(drizzle_result_st *result, drizzle_return_t *ret_ptr)
{
if (drizzle_state_none(result->con))
{
drizzle_state_push(result->con, drizzle_state_row_read);
drizzle_state_push(result->con, drizzle_state_packet_read);
}
*ret_ptr= drizzle_state_loop(result->con);
return result->row_current;
}
drizzle_return_t drizzle_column_write(drizzle_result_st *result,
drizzle_column_st *column)
{
if (drizzle_state_none(result->con))
{
result->column= column;
drizzle_state_push(result->con, drizzle_state_column_write);
}
return drizzle_state_loop(result->con);
}
drizzle_return_t drizzle_column_skip(drizzle_result_st *result)
{
if (drizzle_state_none(result->con))
{
result->options|= DRIZZLE_RESULT_SKIP_COLUMN;
drizzle_state_push(result->con, drizzle_state_column_read);
drizzle_state_push(result->con, drizzle_state_packet_read);
}
return drizzle_state_loop(result->con);
}
drizzle_return_t drizzle_result_write(drizzle_con_st *con,
drizzle_result_st *result, bool flush)
{
if (drizzle_state_none(con))
{
con->result= result;
if (flush)
drizzle_state_push(con, drizzle_state_write);
drizzle_state_push(con, drizzle_state_result_write);
}
return drizzle_state_loop(con);
}
drizzle_column_st *drizzle_column_read(drizzle_result_st *result,
drizzle_column_st *column,
drizzle_return_t *ret_ptr)
{
if (drizzle_state_none(result->con))
{
result->column= column;
drizzle_state_push(result->con, drizzle_state_column_read);
drizzle_state_push(result->con, drizzle_state_packet_read);
}
*ret_ptr= drizzle_state_loop(result->con);
return result->column;
}
drizzle_result_st *drizzle_result_read(drizzle_con_st *con,
drizzle_result_st *result,
drizzle_return_t *ret_ptr)
{
if (drizzle_state_none(con))
{
con->result= drizzle_result_create(con, result);
if (con->result == NULL)
{
*ret_ptr= DRIZZLE_RETURN_MEMORY;
return NULL;
}
drizzle_state_push(con, drizzle_state_result_read);
drizzle_state_push(con, drizzle_state_packet_read);
}
*ret_ptr= drizzle_state_loop(con);
return con->result;
}
drizzle_return_t drizzle_state_loop(drizzle_con_st *con)
{
drizzle_return_t ret;
while (!drizzle_state_none(con))
{
ret= con->state_stack[con->state_current - 1](con);
if (ret != DRIZZLE_RETURN_OK)
{
if (ret != DRIZZLE_RETURN_IO_WAIT && ret != DRIZZLE_RETURN_PAUSE &&
ret != DRIZZLE_RETURN_ERROR_CODE)
{
drizzle_con_close(con);
}
return ret;
}
}
return DRIZZLE_RETURN_OK;
}
drizzle_return_t drizzle_field_write(drizzle_result_st *result,
const drizzle_field_t field, size_t size,
size_t total)
{
drizzle_return_t ret;
if (drizzle_state_none(result->con))
{
if (result->options & DRIZZLE_RESULT_ROW_BREAK)
{
result->options&= (drizzle_result_options_t)~DRIZZLE_RESULT_ROW_BREAK;
result->field= field;
result->field_size= size;
}
else
{
result->field= field;
result->field_size= size;
result->field_offset= 0;
result->field_total= total;
}
drizzle_state_push(result->con, drizzle_state_field_write);
}
else if (result->field == NULL)
{
result->field= field;
result->field_size= size;
}
ret= drizzle_state_loop(result->con);
if (ret == DRIZZLE_RETURN_PAUSE)
ret= DRIZZLE_RETURN_OK;
return ret;
}
