dm_plugin_error_t
dm_pm_indicator_execute(const char *action)
{
dm_plugin_t *dmpip;
char *protocol = extract_protocol(action); /* memory allocated here */
char *actionp = extract_action(action);
dm_plugin_action_handle_impl_t *hip;
dmpip = protocol_to_dm_plugin(protocol);
dstrfree(protocol);
if (dmpip != NULL) {
if ((hip = lookup_handle_by_action(actionp)) == NULL) {
if (bind_action_handle(dmpip, actionp,
(dm_plugin_action_handle_t *)&hip) != DMPE_SUCCESS)
return (DMPE_FAILURE);
}
dm_assert(dmpip->state == DMPS_INITED);
if (dmpip->ops->indicator_execute)
return (dmpip->ops->indicator_execute(hip->handle));
}
return (DMPE_FAILURE);
}
dm_plugin_error_t
dm_pm_update_fru(const char *action, dm_fru_t *frup)
{
char *protocol = extract_protocol(action); /* mem alloced here */
char *actionp = extract_action(action);
dm_plugin_t *dmpip;
if (protocol == NULL) {
log_warn("FRU update: Invalid protocol specified in action "
"`%s'\n", action);
return (DMPE_FAILURE);
}
dmpip = protocol_to_dm_plugin(protocol);
dstrfree(protocol);
if (dmpip != NULL) {
dm_assert(dmpip->state == DMPS_INITED);
if (dmpip->ops->indicator_fru_update)
return (dmpip->ops->indicator_fru_update(actionp,
frup));
}
return (DMPE_FAILURE);
}
// ------------------------------------------------------------------------
// Main loop the program runs in while connected to the server.
// Receives, authenticates, sends confirmation, and executes actions from
// the server.
// ------------------------------------------------------------------------
int Racr::daemon(){
char packet[PACKET_SIZE + 1];
if( _state != CONNECTED ){
return FAIL;
}
while( _ethernet_client.connected() ){
if( _ethernet_client.available() ){
// Packet read failed, flush stream and continue
// (the continue will then check for connection status)
if( !read_packet(packet) ){
Serial.println("Read Failed");
_ethernet_client.flush();
continue;
}
// If authentication fails, skip ahead to next packet.
if( !auth_packet(packet) ){
Serial.println("Auth Failed");
continue;
}
// If we can't tell the server we got the command,
// do not execute the command!
if( !send_confirmation(packet) ){
Serial.println("Receipt confirmation failed");
continue;
}
// Execute the given action.
int action = extract_action(packet);
int arg = extract_arg(packet);
(*_action_funcs[action])(arg);
}
}
Serial.println("Connection died =(");
_ethernet_client.stop();
_state = CONNECTION_SHUTDOWN;
return SUCCESS;
}
//==========================================================================================================
// Create grammar from definitions in input file.
// Production are of the form:
// N -> A B C ...
//==========================================================================================================
void Grammar::read_grammar_file(string grammar_file) {
ifstream file = ifstream(grammar_file);
if(!file.is_open())
throw string("File " + grammar_file + " not found");
//------------------------------------------------------------------------------------------------------
// For each production line extract the symbols and add a production
//------------------------------------------------------------------------------------------------------
for(string line; getline(file, line);) {
if(trim(line, "//").empty()) continue; // Ignore comments and empty lines
vector<Symbol> symbols;
string action_name;
// If an action is specified, a number sign will serve to separate between the production and it
int split_pos = line.find_first_of('#');
extract_symbols(line.substr(0, split_pos), symbols);
if(split_pos != string::npos)
extract_action(line.substr(split_pos + 1), action_name);
productions.push_back(Production(symbols, action_name));
}
//------------------------------------------------------------------------------------------------------
// First production nonterminal considered the start symbol. If it is not START, add a production:
// START -> FIRST-NONTERMINAL
//------------------------------------------------------------------------------------------------------
if(productions[0][0] == START) {
if(productions[0].size() != 2)
throw string("Expected production for START to have just one symbol on right hand side");
if(not is_nonterminal(productions[0][1]))
throw string("Expected production for START to have a nonterminal on the right hand side");
}
else {
productions.push_front(Production({START, productions[0][0]}, ""));
}
} // read_grammar_file()
