//--------------------------------------------------------
//static int8_t input0 (func_cb_ptr p, void *data, uint16_t length) {
static int8_t input0 (func_cb_ptr p, token_type_t *t) {
update_background_state_t *s = (update_background_state_t *)sys_get_state();
// Get token from port.
if (s->state == UPD_STATE_INIT) {
s->backMat = (CYCLOPS_Matrix *)capture_token_data(t, s->pid);
if (s->backMat == NULL) return -ENOMEM;
s->state = UPD_STATE_PROCESS;
} else {
CYCLOPS_Matrix *M = (CYCLOPS_Matrix *)get_token_data(t);
//check that input matrix's depth is 1 byte
if( (M->depth != CYCLOPS_1BYTE) || (s->backMat->depth != CYCLOPS_1BYTE) )
return -EINVAL;
token_type_t *my_token = create_token(s->backMat, sizeof(CYCLOPS_Matrix), s->pid);
if (my_token == NULL) return -EINVAL;
set_token_type(my_token, CYCLOPS_MATRIX);
//SOS_CALL(s->put_token, put_token_func_t, s->output0, my_token);
dispatch(s->output0, my_token);
destroy_token(my_token);
}
return SOS_OK;
}
TOKEN function_definition(SYMBOL s)
{
TOKEN func_definition = NULL;
//we didn't find a global var so assume we found a function
//we already parsed the declaration specifiers and the declarator in the earlier parsing attempt
//so just repurpose the information we collected instead of backtracking and re-parsing
expect(DELIMITER_TOKEN, OPEN_PAREN, NO_ERROR_HANDLER);
TOKEN params = parameter_type_list(); //we already found the return type and function name earlier, so we just pick up from there
expect(DELIMITER_TOKEN, CLOSE_PAREN, NO_ERROR_HANDLER);
SYMBOL return_type = s;
insertfn(s->namestring, return_type, get_token_symbol_type(params)); //FIXME: extend this to more than just one parameter
TOKEN func_body = compound_statement();
//FIXME: this is a hack to retrieve the function name in TOKEN form
//figure out a better way to deal with this
TOKEN func_name = make_token();
set_token_type(func_name, IDENTIFIER_TOKEN);
set_token_string_value(func_name, s->namestring);
set_token_symbol_table_entry(func_name, s);
params = make_statement_list(params);
func_definition = make_function_definition(func_name, params, func_body);
return func_definition;
}
