G_parser::G_parser() : grammar(grammar_path, std::ifstream::in){
//"int main(){}"
//grammar_path = "/Users/christodoulosaspromallis/Desktop/UCL/PhD Year 2/Development/OF/of_v0.9.1_osx_release/apps/midiWorkspace/blues/parser_project/bin/data/blues_grammar.txt";
//cout << "CONTRUCTOR" << endl;
grammar_path = "/Users/christodoulosaspromallis/Desktop/UCL/PhD Year 2/Development/OF/of_v0.9.1_osx_release/apps/midiWorkspace/blues/parser_project/bin/data/blues_grammar.txt";
//ifstream grammar(grammar_path, ifstream::in);
grammar.open(grammar_path);
if (grammar.fail()){
cerr << "Error Opening File";
exit(1);
};
//cout << "setting up" << endl;
//get main grammar elements
while(!grammar.fail()){//z<12//!grammar.eof() //or while(grammar)
nc = get_nc();
//c = grammar.get();
//cout << z << "_1: " << nc << endl;
get_time_signature(nc);
//cout << z << "_2: " << nc << endl;
get_form_length(nc);
//cout << z << "_3: " << nc << endl;
get_harm_rh(nc);
//cout << z << "_4: " << nc << endl;
get_basic_vectors(nc);
//cout << z << "_5: " << nc << endl;
store_rules(nc);//normally will finish the significant bit of text file (i.e. the rules are last)
//cout << z << "_6: " << nc << endl;
}
//restart reading from top (for next loop)
grammar.clear();
grammar.seekg(0, ios::beg);
//initialise curr_cycle with tonics (rootpitch level)
for(int i=0; i<harm_rh*form_length; i++) {
curr_cycle.push_back(elem_ID());
curr_cycle[i].time = {0, i};// {beat, harm_rh next..}
curr_cycle[i].name = "i";
}
//place decs for the 1st cycle
vector<int> t_aux = {0, 0, 0, 11, 0};
update_dec(t_aux);
grammar.close();
}
/*
* This function builds:
* - OUTPUT rule
* - POSTROUTING rule
* - PREROUTING rule
* - ntk_mark_chain
* and store rules for future deletion.
*
* Returns:
* 0
* -1
*
* If -1, any rule will be committed.
*/
int
mark_init(int igw)
{
int res;
iptc_handle_t t;
char rule[MAX_RULE_SZ];
/*res=inet_aton(NTK_NET_STR,&inet_dst);
if (!res) {
error("Can not convert str to addr.");
goto cannot_init;
}
res=inet_aton(NTK_NET_MASK_STR,&inet_dst_mask);
if (!res) {
error("Can not convert str to addr.");
goto cannot_init;
} */
res = table_init(MANGLE_TABLE, &t);
if (res) {
error(err_str);
goto cannot_init;
}
res = ntk_mark_chain_init(&t);
if (res) {
error(err_str);
error("Unable to create netfilter ntk_mark_chain.");
goto cannot_init;
}
restore_output_rule_init(rule);
res = insert_rule(rule, &t, CHAIN_OUTPUT, 0);
if (res) {
error(err_str);
error("Unable to create netfilter restore-marking rule.");
goto cannot_init;
}
ntk_forward_rule_init(rule);
res = insert_rule(rule, &t, CHAIN_POSTROUTING, 0);
if (res) {
error(err_str);
error("Unable to create netfilter forwarding rule.");
goto cannot_init;
}
if (igw) {
death_loop_rule = 1;
igw_mark_rule_init(rule);
res = insert_rule(rule, &t, CHAIN_PREROUTING, 0);
if (res) {
error(err_str);
error("Unable to create netfilter igw death loop rule.");
death_loop_rule = 0;
goto cannot_init;
}
} else
death_loop_rule = 0;
res = commit_rules(&t);
if (res) {
error(err_str);
error("Netfilter mangle table was not altered!");
goto cannot_init;
}
res = store_rules();
if (res) {
error(err_str);
error
("Rules storing failed: autocleaning netfilter on exit disable.");
clean_on_exit = 0;
} else
clean_on_exit = 1;
dump_rules();
debug(DBG_NORMAL, "Netfilter chain ntk_mark_chain created (mangle).");
debug(DBG_NORMAL,
"Netfilter restoring rule created (mangle->output).");
debug(DBG_NORMAL,
"Netfilter forwarding rule created (mangle->postrouting).");
if (igw)
debug(DBG_NORMAL, "Netfilter death loop igw rule created.");
debug(DBG_NORMAL, "mark_init(), netfilter mangle table initialized.");
loginfo("Netfilter mangle table modified.");
return 0;
cannot_init:
err_ret(ERR_MRKINI, -1);
}
